Party Bus, Charter Bus & Minibus Rentals in Beaverton, Oregon
Fill out one quick form on Partybussalem.com and compare vehicles and rates from a network of independently owned transportation companies serving Beaverton and the greater Portland metro. Party buses, minibuses, charter buses, Sprinter vans — see pricing and pictures in under 30 seconds, no account required. Call 971-382-0030 any time to get started.
Where Beaverton Compares Party Bus Rentals
Partybussalem.com is not a bus company. It is a quote-comparison website that makes finding group transportation in Beaverton and across the Portland metro fast, free, and genuinely simple. Instead of calling five different companies, describing your trip each time, and waiting on callbacks that never quite line up — you fill out one form and instantly see different vehicles, packages, and rates from transportation providers serving your area.
No account, no obligation, no runaround.
That's the whole point. Whether you need a 15-passenger minibus to shuttle wedding guests between a Beaverton hotel block and a winery in the Chehalem Mountains, a 25-passenger party bus for a bachelorette night through the Pearl District, or a full 56-passenger charter bus for a corporate conference at the Beaverton Round — Partybussalem.com puts all the options in one place so you can find what fits. Call 971-382-0030 or use the online quote tool to see pricing in about a minute.
A Bus for Your Beaverton Group
Beaverton groups can compare 14-passenger Sprinter limos, Sprinter vans, party buses seating 15 to 50 passengers, minibuses, and 40–56 passenger charter buses. Browse the full vehicle lineup or call 971-382-0030 to talk through which size makes the most sense for your headcount and itinerary.
Vehicle photos show representative examples — exact make, model, color, interior, features, and availability vary by provider and trip.
14 Passenger Sprinter Limo
Sprinter Van Rental with Driver
15 Passenger Party Bus
18 Passenger Party Bus
20 Passenger Party Bus
25 Passenger Party Bus
28 Passenger Party Bus
30 Passenger Party Bus
40 Passenger Party Bus
50 Passenger Party Bus
15-35 Passenger Minibus
40-56 Passenger Charter Bus
Buses and vehicles shown above are NOT the exact makes and models available for every trip. We are NOT a bus company and do not own or operate vehicles. Photos are examples only and may show stock or typical vehicles, not the exact vehicle offered for your reservation. Fill out the online quote form or call 971-382-0030 to view current vehicle options, photos, availability, and pricing. Confirm the exact vehicle details and amenities before booking.
Modern Onboard Bus Amenities for Your Beaverton Trip
Not every Beaverton trip needs the same setup. A 18- to 25-passenger party bus typically comes loaded with color-changing LED lighting, a premium sound system with Bluetooth, flat-panel TVs, and wraparound perimeter seating — the right call for a birthday night or a bachelorette crawl through downtown Portland. A minibus gives you climate control, reclining seats, and greater maneuverability on Beaverton's busy surface streets and tighter parking corridors, making it a strong fit for corporate shuttles between office campuses along the Sunset Corridor.
For large groups heading out to the coast or up to a mountain resort, a 56-passenger charter bus brings undercarriage luggage bays and onboard restrooms so the group isn't stopping every 45 minutes. Amenities vary by vehicle — the quote tool lets you compare options side by side before you commit to anything.
Air-conditioning
Wraparound Leather Seats
AUX / Bluetooth Sound System
LED and Fiber Optic Lighting
Built-in Bar Areas With Ice Storage and Cup Holders
TVs and Entertainment Systems
Amenities listed above are common features that MAY be available on party buses. Because we are a referral website and do NOT own or operate buses, exact features vary by vehicle, provider, and availability. After you submit your quote request, you can browse vehicle options, pricing, and available details on the results page. To confirm the exact amenities included with a specific vehicle offered for your trip, call 971-382-0030 before booking.
Get Your Beaverton Party Bus Price Online
Beaverton party bus rental prices shift based on the vehicle type, the date, and how many hours you need. To give you a planning baseline: a 15-passenger party bus runs roughly $200–$350 per hour on weekdays and $250–$350 on weekends. A 30-passenger party bus runs about $300–$375 per hour on weekdays and $325–$425 on weekends.
A charter bus typically lands in the $200–$350 per hour range whether you're traveling on a weekday or weekend. A minibus generally runs $200–$275 per hour on weekdays and $200–$275 on weekends.
Those are planning ranges — the price moves with the specific date, how many hours you need, and which vehicle fits your group. The fastest way to get a quote for your trip is to call 971-382-0030 or use the online quote form. You could have pricing for your trip in under a minute.
Check out the party bus prices page for more detail.
| Type of Bus | Cost Per Hour Weekdays | Cost Per Hour Weekends | Cost Per Day |
|---|---|---|---|
| 14 Passenger Sprinter Limo | $204 – $318+ | $219 – $344+ | $1,526 – $3,113+ |
| Sprinter Van Rental | $203 – $273+ | $218 – $366+ | $1,395 – $2,748+ |
| 15 Passenger Party Bus | $204 – $330+ | $241 – $340+ | $1,396 – $2,817+ |
| 18 Passenger Party Bus | $266 – $330+ | $268 – $378+ | $2,121 – $2,563+ |
| 20 Passenger Party Bus | $244 – $338+ | $268 – $340+ | $1,939 – $2,796+ |
| 25 Passenger Party Bus | $248 – $326+ | $265 – $360+ | $1,827 – $2,854+ |
| 28 Passenger Party Bus | $255 – $337+ | $279 – $351+ | $2,147 – $2,653+ |
| 30 Passenger Party Bus | $297 – $374+ | $318 – $414+ | $2,331 – $3,021+ |
| 40 Passenger Party Bus | $297 – $338+ | $321 – $478+ | $2,297 – $3,473+ |
| 50 Passenger Party Bus | $294 – $441+ | $337 – $490+ | $2,173 – $4,043+ |
| 15–35 Passenger Minibus | $207 – $246+ | $209 – $261+ | $1,098 – $2,105+ |
| 40–56 Passenger Charter Bus | $206 – $327+ | $208 – $348+ | $1,331 – $2,841+ |
| ABOVE PRICES ARE JUST EXAMPLES. Your final price and vehicle options depend entirely on your specific trip details. To get an exact price for your trip, request an estimate online or call 971-382-0030. | |||
A Better Way to Rent a Party Bus in Beaverton
The traditional way to find a party bus goes like this: search for companies, hope their websites are up to date, call during business hours, describe your trip from scratch, and wait a day or two for a callback. Then do it again with the next company on the list. Partybussalem.com replaces all of that with one form and about 30 seconds.
Because this is a comparison site and not a single fleet operator, you're never stuck with whatever one company happens to have available on your date. The network includes transportation providers serving Beaverton, the rest of Washington County, and the broader Portland metro — so there are far more vehicle options, price points, and availability windows than any single operator can offer. That is genuinely great news for anyone planning a group trip on a tight timeline or a tight budget.
You don't need an account. You don't need to wait for an email. A support team is available every day of the year, and getting a quote is always free with no obligation.
Call 971-382-0030 any time — or fill out the online form and see pricing right now.
Group Transportation Services Available in Beaverton
Partybussalem.com helps you find the right bus for any occasion in Beaverton — from airport transfers and wedding shuttles to prom nights, concert runs, corporate events, game day travel, and winery tours. Whatever is bringing your group together, there's a bus in the network ready for it.

Beaverton Airport Shuttles & Transportation
Portland International Airport (PDX) sits roughly 17 miles northeast of Beaverton's city center — a straightforward drive on US-26 East until traffic on the Sunset Highway stacks up, which it does reliably during morning and evening commute hours, before Rose Quarter home games, and any time I-405 backs up into the merge. A Beaverton airport shuttle bus rental through Partybussalem.com sends one vehicle to collect your entire group from one pickup point, gets everyone to PDX together, and eliminates the coordination mess of splitting into multiple rideshares.
At PDX, the ground transportation pickup area for pre-arranged vehicles is on the Lower Roadway — check the PDX airport shuttle guide for current pickup specifics and have your group coordinator confirm everyone has their luggage before calling the vehicle forward. For corporate groups flying in from out of town, a minibus from PDX to a Beaverton office campus on the Sunset Corridor lands your team at the front door without anyone renting a car. Call 971-382-0030 to set up an airport shuttle for your group.

Beaverton Bachelor & Bachelorette Transportation
A Beaverton bachelorette party almost always ends up in Portland — the Pearl District and Northwest 23rd Avenue for dinner and cocktails, a show at a downtown club, or a late-night crawl through the bars on SW Morrison. The problem with driving into Portland on a Friday or Saturday night is that parking in the Pearl starts at $10–$20 and climbs fast on weekend evenings, and rideshare demand spikes hard after midnight when everyone is trying to leave at once.
A party bus rental handles all of it. The group leaves from a single Beaverton pickup point, gets into the city without anyone stressing about where to park, and rides back together when the night wraps — no one stranded, no one paying surge pricing at 1am. A Beaverton bachelorette party bus seating 18 to 25 passengers is the typical fit for a group that size, with LED lighting and a sound system to keep the energy going from the first stop to the last.
Call 971-382-0030 to check what's available on your date.

Beaverton Birthday, Sweet 16, & Quinceañera Party Bus Rentals
A party bus arrival is one of the most memorable parts of a Sweet 16 or quinceañera — and Beaverton has a growing number of event and reception venues that host exactly these celebrations. Whether the party is at a venue in the Beaverton-Hillsboro corridor or heading into Portland for a dinner reservation and a night out, a Beaverton birthday party bus rental makes the group transport part feel as special as the event itself.
For adult milestone birthdays, a party bus from Beaverton into Portland's dining and entertainment districts eliminates the car-shuffle and keeps the whole group together from the first toast to the last. Vehicle sizes in the network run from 15-passenger buses for smaller groups up to 50-passenger party buses for larger celebrations. The quote tool shows pictures and pricing side by side so you can match the vehicle to the vibe.
Call 971-382-0030 or fill out the form to see what's available on your date.

Beaverton Concert Transportation & Shuttles
Most major concerts in the Portland metro land at Moda Center (1 Center Court, Portland, OR 97227) or Providence Park (1844 SW Morrison St, Portland, OR 97205) — both of which sit inside Portland's urban core where parking is either expensive, scarce, or both. Moda Center has its own garage, but it fills fast on sellout nights, and walking back to the Rose Quarter after a show means competing with 19,000 other people for rideshare pickups on N Wheeler Ave. Providence Park is even tighter — the stadium sits in a dense residential and commercial neighborhood with no dedicated event lot, and street parking in the surrounding blocks is a lottery.
A Beaverton concert bus rental skips the lot-hunting entirely. Your group loads up in Beaverton, gets dropped at the venue entrance, and the bus handles the return once the show ends — no one standing on a wet Portland sidewalk refreshing a rideshare app. Read more in the Moda Center bus guide and the Providence Park bus guide before you book.
Call 971-382-0030 to check availability for your concert date.

Beaverton Corporate Event Transportation
The Sunset Corridor — the stretch of US-26 running through Beaverton and Hillsboro — is home to Nike's world headquarters, Intel's Ronler Acres campus, and dozens of mid-size tech and healthcare employers. Getting a group of employees or visiting clients between campuses, hotels, and off-site event venues during peak hours on that corridor is a legitimate logistical headache: US-26 westbound out of Portland backs up past the Cedar Hills interchange most weekday afternoons, and surface streets through downtown Beaverton aren't much faster when Beaverton Round events are running concurrently.
A Beaverton corporate event charter bus or minibus rental keeps your team on one vehicle, on schedule, and focused on the agenda instead of the traffic. For executive-level airport-to-campus transfers, a Sprinter limo or Sprinter van fits cleanly into a tight corporate itinerary. Call 971-382-0030 to discuss group rates and multi-vehicle packages for your next Beaverton corporate event.

Beaverton Private Event Transportation Services
Family reunions, church retreats, milestone anniversary dinners, brewery tour days — a Beaverton private event bus rental handles the group transport piece so the organizer can actually enjoy the event. The Oregon Coast is about 90 minutes west of Beaverton on US-26, making it a popular day-trip destination for large groups, but coordinating a 20-car convoy to Cannon Beach and back is genuinely exhausting. One charter bus or large party bus solves that entirely.
Closer to home, the Beaverton Farmers Market draws large crowds to the downtown core on Saturdays from late spring through November, and parking fills up early on busy market days. For groups wanting to explore the market without the parking scramble, a minibus drops everyone at the Cedar Hills Crossing area and stages nearby. Whatever your group has planned, Partybussalem.com makes it easy to find the right size vehicle at the right price.
Call 971-382-0030 to talk through your options.

Beaverton Homecoming & Prom Party Bus Rentals
Prom season in Washington County runs from late April through mid-May, and demand for party buses across the Beaverton, Hillsboro, and Portland metro spikes significantly during that window. Beaverton High School, Southridge High School, Sunset High School, and Westview High School — along with schools throughout the Beaverton School District — all hold events within a narrow stretch of weeks, which means available vehicles get claimed fast.
For prom: book by January or expect limited availability and higher rates. Waiting until March or April is not a strategy — it's a gamble. A Beaverton prom party bus rental keeps the group together, gets everyone to dinner and the venue on time, and gives parents peace of mind about the return trip.
Call 971-382-0030 as soon as the date is confirmed to lock in the vehicle your group wants.

Beaverton School Event & Field Trip Transportation
Teachers and trip coordinators in the Beaverton School District deal with a tight logistics window whenever a field trip leaves campus — early dismissal times, parent permission coordination, and the reality that US-26 and OR-217 can slow to a crawl without warning. A Beaverton school event bus rental through Partybussalem.com makes it easy to find the right vehicle size for your group without juggling multiple vendors.
Popular destination options for Beaverton school groups include Oregon Museum of Science and Industry (OMSI) (1945 SE Water Ave, Portland, OR 97214) in Southeast Portland, the Portland Japanese Garden (611 SW Kingston Ave, Portland, OR 97205), and day trips to the Oregon Coast Aquarium (2820 SE Ferry Slip Rd, Newport, OR 97365) — a roughly two-hour drive west on US-20. For longer trips, charter buses with onboard restrooms and overhead storage keep the travel manageable for students and chaperones alike. ADA-accessible vehicles are available through the network — mention your requirements when you request a quote.
Call 971-382-0030 to get started.

Beaverton Sporting Event Transportation
Portland Timbers and Portland Thorns matches at Providence Park (1844 SW Morrison St, Portland, OR 97205) are the closest major pro sporting events to Beaverton — and Providence Park's location in the heart of Portland's west side means there is genuinely no large parking lot within easy walking distance. The stadium is surrounded by dense residential blocks, and MAX Light Rail is the transit agency's preferred solution, but coordinating a large group on MAX from Beaverton requires everyone to meet at a station, buy tickets, and manage the ride both ways.
A Beaverton sporting event charter bus gets your group to SW Morrison Street and back without any of that coordination. For Trail Blazers games at Moda Center, the same dynamic applies — the Rose Quarter garage has capacity, but it fills on sellout nights, and walking to the rideshare staging area on N Wheeler Ave after a late game adds time and cold weather to an already long evening. The Providence Park bus guide and the Moda Center bus guide have current drop-off and approach details worth reviewing before your visit.
Call 971-382-0030 to lock in game-day transportation.

Beaverton Wedding Transportation & Shuttle Service
Beaverton wedding groups often span multiple locations — a hotel block near Washington Square or along SW Canyon Road, a ceremony venue in the Tualatin Valley wine country, and a reception at one of the event spaces along the Sunset Corridor or over in Portland's west hills. Asking guests to navigate that circuit on their own, especially after a reception, means late arrivals, stressed families, and a lot of rideshare coordination that eats into your planning energy.
A Beaverton wedding shuttle bus rental eliminates that entirely. A minibus running a hotel-to-venue loop handles most wedding guest shuttles cleanly — it fits in hotel pickup lanes, navigates the tighter access roads at vineyard venues, and keeps guests on your timeline instead of their own. For the wedding party itself, a Sprinter limo makes a clean statement at the ceremony entrance without the parking logistics.
Call 971-382-0030 to build a shuttle plan around your specific venues and guest count.

Beaverton Winery Tour & Pub Crawl Transportation
Beaverton sits at the western edge of the Tualatin Valley wine region — one of Oregon's most productive wine-growing areas, with Pinot Noir and Pinot Gris vineyards spread across the Chehalem Mountains, Ribbon Ridge, and the rolling hills south toward Newberg. Getting from winery to winery on OR-240 and Ribbon Ridge Road without a designated vehicle is genuinely impractical: the roads are narrow, there is no rideshare coverage out in the hills, and cell service drops in several of the valleys.
A Beaverton winery tour bus rental lets the whole group taste freely without logistics becoming the afternoon's main event. Popular stops include Adelsheim Vineyard (16800 NE Calkins Ln, Newberg, OR 97132), Ponzi Vineyards (19500 SW Mountain Home Rd, Sherwood, OR 97140) — just south of Beaverton — and Chehalem Winery (106 S Center St, Newberg, OR 97132) in town. A 15- to 25-passenger party bus or minibus is typically the right fit for this kind of afternoon.
Call 971-382-0030 to plan your route and see what's available on your date.
How to Request a Party Bus Quote in Beaverton
Submit Your Request
Use the online quote tool to share your trip details, including the date, passenger count, and pickup and drop-off locations. It only takes about a minute to fill out.
Compare Vehicles and Pricing
You'll continue to a national booking platform, where you can review pricing, vehicle photos, and details for buses serving Beaverton to find the right fit for your group.
Book Your Bus
Choose the bus that fits your group, review the final trip details, and complete your booking right on the platform. Now you can relax!
Party Bus & Group Transportation in Beaverton & Beyond
Partybussalem.com helps you find buses across Washington County and the entire Portland metro. Whether you need a Hillsboro party bus, a Portland bus rental, transportation in Gresham, or a Vancouver, Washington party bus, the network covers it. For Salem and the Mid-Willamette Valley, Salem group transportation is available through the same platform.
Call 971-382-0030 any time — coverage extends well beyond Beaverton city limits.

Nearby Cities You Can Get Bus Rentals To
Frequently Asked Questions About Beaverton Party Bus Rentals
How does this website work?
Partybussalem.com helps you compare bus rental options; it is not the bus company and does not rent, own, or operate vehicles. When you submit the quote form, your trip details go through a booking company so you can review pricing and available vehicles for your date. You compare the options and book through the process shown with your quote.
What is Partybussalem.com?
Partybussalem.com is a quote-comparison website for group ground transportation. It is not a bus company and does not provide transportation directly. You fill out one online form or call 971-382-0030, and the site surfaces vehicle options and pricing from transportation providers serving Beaverton and the Portland metro — so you can compare buses, sizes, and rates in one place instead of chasing down individual companies.
How does Partybussalem.com work?
Enter your trip details — date, group size, pickup and drop-off locations — into the online quote form. In under 30 seconds, you'll see different vehicles, pictures, and pricing from providers serving your area. No account required, no obligation to book.
If you'd rather talk through your options first, a support team is available every day of the year at 971-382-0030.
How much does a party bus cost in Beaverton?
A 15-passenger party bus in Beaverton runs roughly $200–$350 per hour on weekdays and $250–$350 on weekends. A 25-passenger party bus lands around $250–$375 per hour. A 40–56 passenger charter bus typically runs $200–$350 per hour.
A minibus generally falls in the $200–$275 per hour range. Those are planning figures — the price for your specific date and itinerary will vary. Call 971-382-0030 or fill out the quote form to get pricing in about a minute.
Do I need to book round-trip, or can I book a one-way transfer?
Both are available. One-way transfers work well for airport runs and cruise pickups. Round-trips are common for concerts, sporting events, and wedding shuttles.
Multi-stop itineraries — like a winery tour with four stops — are also easy to set up. Just describe your trip when you fill out the form or call, and the options you'll see will reflect your specific setup.
What is the best vehicle for a small Beaverton group of 10–15 people?
A 15-passenger minibus or a Sprinter van is typically the right fit at that headcount. Both handle Beaverton's surface streets and tighter lot entries well, and both are more affordable per hour than a full-size party bus. If the group wants amenities like LED lighting and a sound system, a 15-passenger party bus adds those without stepping up to a larger vehicle.
How far in advance should I book for a Portland Timbers or Trail Blazers game?
For regular-season games, two to four weeks of lead time is generally workable. For playoff games, rivalry matches, or any event that coincides with a major Portland-area festival or convention — book the moment your tickets are confirmed. Demand spikes fast on those dates, and waiting even a week after tickets go on sale can mean fewer vehicle options and higher rates.
Can Partybussalem.com help me find transportation to the Oregon Coast from Beaverton?
Yes. US-26 West from Beaverton to the coast is a well-traveled corridor, and charter buses in the network handle that drive regularly for family reunions, corporate retreats, school trips, and group day trips to Cannon Beach, Seaside, and Tillamook. A 56-passenger charter bus with onboard restrooms makes the 90-minute drive significantly easier than coordinating a multi-car caravan.
Call 971-382-0030 to check availability and get pricing for your group size and date.
How far in advance should I book?
For most standard events — birthday parties, winery tours, corporate shuttles — four to eight weeks of lead time gives you solid vehicle selection and competitive rates. For prom season (late April through mid-May), book by January. For major Portland events like Rose Festival, Timbers playoff runs, or New Year's Eve, book two to three months out.
The earlier you call, the better the options. Call 971-382-0030 now if your date is approaching.
Popular Beaverton Party Bus Destinations
From Nike's headquarters campus to wine country trailheads and Portland's major arenas, Beaverton groups travel to a wide range of destinations. Here are six popular stops that come up often when Beaverton groups plan their trips — along with the logistics details that actually matter for group travel.

Nike World Headquarters
Nike's main campus (One Bowerman Drive, Beaverton, OR 97005) is one of the largest corporate campuses in Oregon, spanning more than 400 acres and hosting thousands of employees and visiting partners each week. Campus access is controlled — visitors must check in at the main gate, and large vehicles follow specific approach routes depending on which building they're servicing. For corporate group arrivals from PDX or from Portland hotels, a minibus or Sprinter van makes a clean transfer without the logistics of managing multiple rental cars through a gated campus entrance.
Parking on campus is managed internally, and large coach vehicles coordinate drop-off through the appropriate campus entry point. Confirm your vehicle arrival with your Nike campus contact in advance so access is smooth on the day.

Providence Park
Providence Park (1844 SW Morrison St, Portland, OR 97205) is home to the Portland Timbers and the Portland Thorns, and its location in Portland's Goose Hollow neighborhood means there is no large adjacent parking lot. The closest garages are the PGE Park Garage on SW 18th and the Smart Park on SW Yamhill, both of which fill well before kickoff on sellout nights. Rideshare pickup after matches congests SW Morrison and SW 18th for 30–45 minutes post-final whistle.
A Beaverton charter bus drops your group on SW Morrison steps from the stadium gate and picks everyone up at the same point, bypassing the post-match rideshare queue entirely. Check the Providence Park bus rental guide for current drop-off approach details before your visit.

Moda Center
Moda Center (1 Center Court, Portland, OR 97227) holds 19,393 for Trail Blazers games and regularly hosts major touring concerts. The Rose Quarter campus has its own parking structure, but it reaches capacity on sellout nights — and the N Wheeler Avenue rideshare staging area gets backed up badly after late games and major shows. Buses drop off and pick up along the arena's designated commercial vehicle approach on N Interstate Avenue, keeping your group off the pedestrian-heavy streets around the arena.
A Beaverton party bus or charter bus rental to Moda Center means your group is already on the vehicle and heading back to Washington County while the rideshare queue is still building. The Moda Center bus guide has current logistics worth reviewing before game day.

Washington Square Mall
Washington Square (9585 SW Washington Square Rd, Tigard, OR 97223) is the largest enclosed shopping mall in Oregon, sitting just southeast of Beaverton at the OR-217 and SW Scholls Ferry Road interchange. On major retail weekends — Black Friday, the holiday shopping stretch from Thanksgiving through Christmas, and tax-free shopping days — surface lot congestion around the mall can back up the SW Washington Square Road entrance significantly. For corporate holiday parties using the mall area's hotel cluster (the Residence Inn, Courtyard, and Hilton Garden Inn are all within a few hundred feet), a minibus shuttle between properties and the venue eliminates the parking puzzle for guests who don't know the area.
Drop-off is curbside at the main mall entrance on SW Washington Square Road.

Adelsheim Vineyard
Adelsheim Vineyard (16800 NE Calkins Ln, Newberg, OR 97132) is one of the founding estates of the Chehalem Mountains AVA, about 25 miles southwest of Beaverton via OR-10 West through Hillsboro and then south on OR-219. The tasting room is open daily, and group visits — especially seated tasting experiences — benefit from advance reservation. The access road into the estate is a narrow rural lane, and a minibus navigates it cleanly where a full-size 56-passenger coach would have more difficulty.
Adelsheim recommends contacting their group sales team ahead of larger visits. Cell service along Calkins Lane is inconsistent, so coordinate arrival timing with your group before leaving Beaverton. A 15- to 25-passenger party bus or minibus is the practical fit for this destination.

Oregon Museum of Science and Industry (OMSI)
OMSI (1945 SE Water Ave, Portland, OR 97214) sits on the east bank of the Willamette River in Southeast Portland, about 14 miles from central Beaverton. The museum draws school groups and family trips throughout the year, and its location near the Hawthorne Bridge means the surrounding blocks can get congested during peak arrival windows on weekend mornings. OMSI has a surface parking lot on SE Water Avenue with space for buses to stage, but calling ahead to confirm bus arrival timing during high-traffic periods is worth doing.
For Beaverton school groups, a charter bus from campus to OMSI and back handles the full-day logistics — arrival, on-site staging during the visit, and return pickup — without splitting students across multiple vehicles. The Beaverton school event bus rental page has more on setting up educational trips.