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Cheap bus tickets from SeaTac to Portland
Find and compare the best ground travel options in one place.
Bus from SeaTac to Portland: Journey Information
There are 5 intercity buses per day from SeaTac to Portland. Travelling by bus from SeaTac to Portland usually takes around 3 hours and 17 minutes, but the fastest FlixBus US bus can make the trip in 2 hours and 45 minutes.
- Distance
- 134 mi (216 km)
- Shortest duration
- 2h 45m
- Cheapest price
- CHF 20.86
- Trips per day
- 5
- Most frequent service
- Greyhound
- Bus lines
- 2
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SeaTac to Portland Bus Schedule
Bus Trip Reviews from Wanderu Customers
Average score for buses from SeaTac to Portland (Based on 1 rating and review)
5.0
There are several bus options that can take you from SeaTac to Portland:
See more detailsHow much is a bus ticket from SeaTac to Portland?
Bus tickets for a trip from SeaTac to Portland cost about CHF 26 when you book at the cheapest time, 10 days ahead. Opting to take a bus is a wallet-friendly way to make this trip. If you book your trip ahead of time using Wanderu, you can easily find bus tickets at or below this price.
Average bus ticket prices from SeaTac to Portland by travel date
If you're planning to travel by bus from SeaTac to Portland in the next month, the average ticket price is expected to range from CHF 21 to CHF 84. The cheapest bus tickets available in the next few weeks are for trips departing on December 8, 2026. If you’re looking to travel to Portland this week, bus tickets are available starting at CHF 22.
Average bus ticket prices from SeaTac to Portland by month
Taking the bus from SeaTac to Portland is usually cheapest in February, when the average ticket price is only CHF 28. If you're planning to take the bus from SeaTac to Portland during June, keep in mind that bus ticket prices may be higher than usual, with an average price of CHF 43. However, booking your trip in advance can help you score a ticket at a better price.
Prices as travel date approaches
Most bus companies charge higher ticket prices closer to the date of travel, so it’s a good idea to buy your bus tickets as early as possible. To find the cheapest bus tickets, book your trip at least 10 days in advance. This way, you can save up to CHF 23.78 on your bus ticket compared to booking last-minute.
What bus companies travel from SeaTac to Portland?
There are two bus lines that have daily service from SeaTac to Portland that you can compare and book on Wanderu. Of these two carriers, Greyhound usually offers more choice, with 3 scheduled trips per day.
| Bus | Daily Trips | Avg. Time | Avg. Price |
|---|---|---|---|
| FlixBus US | 3 | 3h 11m | CHF 29.25 |
| Greyhound | 3 | 3h 23m | CHF 33.44 |
FlixBus US is the American branch of German bus company FlixBus, known for providing sustainable, affordable, and modern bus travel. The company offers cheap bus tickets to popular urban destinations throughout the United States. FlixBus US buses include many amenities, including comfortable seats, free WiFi, power outlets at every seat, and an online portal for free entertainment. On average, FlixBus US operates 3 trips per day from SeaTac to Portland, and the average ticket for this route costs only CHF 29.25.
Greyhound is the largest nationwide bus carrier in the United States, offering cheap, safe and reliable service across the country. Greyhound has become a household name, serving over 16 million passengers per year with daily trips to over 2,400 destinations. Greyhound performs about 3 bus trips from SeaTac to Portland every day, with the average journey taking around 3 hours and 23 minutes to complete. Bus tickets for Greyhound trips to Portland usually start from CHF 20.86.
Frequently asked questions about travelling by bus from SeaTac to Portland
There are 5 scheduled buses that travel from SeaTac to Portland every day, so you have a decent number of options to choose from. Furthermore, all of these are direct buses which you can take the entire route from SeaTac to Portland without transferring.
Trips per day
5
Direct trips
5
The bus takes an average of 3 hours and 17 minutes to cover the 216 kilometres from SeaTac to Portland. However, the fastest bus only takes 2 hours and 45 minutes. It's the perfect amount of time to take a nap, get some work done, or watch a movie. Keep in mind that your actual bus may arrive earlier or later than scheduled, depending on whether there is more or less traffic than usual.
Distance (mi)
134
Distance (km)
216
The first bus leaves at 8:10 a.m. and the last bus leaves at 8:35 p.m. To see the times for all buses from SeaTac to Portland, enter your specific travel dates in the search bar.
Earliest bus
8:10am
Latest bus
8:35pm
Friday is the busiest travel day for buses as people head from SeaTac to Portland for the weekend. If you are planning to travel on a Friday, you should make sure to book tickets well in advance as they may sell out. On the other hand, Wednesday is typically the least busy day for bus travel on this route. If you're looking for some extra space on the bus, travelling mid-week is your best bet.
Most crowded
Friday
Least crowded
Wednesday
City Information
Portland
Portland is the largest city in Oregon and accordingly one of the state's best vacation destinations. Also known as the City of Roses, this city along the Willamette River wows visitors with its diverse street food, quirky counterculture, and sprawling bookstores such as the world-famous Powell's Books.
Portland is the 5th best city in the United States for outdoor activities, thanks in part to open-air grounds like the expansive Forest Park. Gardens are also excellent outdoor date locales for couples on a romantic getaway: stop and smell the roses at either the International Rose Test Garden or the Portland Japanese Garden.
Once you've gotten hungry from a long day wandering outside, nearly every block downtown has a plethora of food trucks waiting to tickle your taste buds. Or, kick back at one of the many breweries in the #3 best city for craft beer in the United States. Unique locations like McMenamin's brewpubs in renovated cinemas or historic hotels do their part to “keep Portland weird.”
As the biggest city in Oregon, Portland is a hub for travel throughout the Pacific Northwest. Amtrak train service and various bus services operate primarily out of Union Station, conveniently-located downtown, and nearby Portland International Airport makes it easy to travel to Portland from near and far.
Station Information
Where does the bus leave from in SeaTac?
Main departure station: Sea-Tac Airport Bus Stop
SeaTac has two bus stations with service to Portland.
All bus stations in SeaTac:
- Sea-Tac Airport Bus Stop
Where does the bus arrive in Portland?
Main arrival station: 7411 NW Station Way
All buses from SeaTac arrive at one main station in Portland.
All bus stations in Portland:
- 7411 NW Station Way
Need a return trip from Portland to SeaTac?
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