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Cheap bus tickets from Portland to SeaTac

Find and compare the best ground travel options in one place.

Bus from Portland to SeaTac: Journey Information

There are 6 intercity buses per day from Portland to SeaTac. Traveling by bus from Portland to SeaTac usually takes around 3 hours and 39 minutes, but the fastest Greyhound bus can make the trip in 3 hours and 5 minutes.

Distance
134 mi (216 km)
Shortest duration
3h 5m
Cheapest price
RON 119.71
Trips per day
6
Most frequent service
Greyhound
Bus lines
2

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Portland to SeaTac Bus Schedule

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Bus Trip Reviews from Wanderu Customers

Average score for buses from Portland to SeaTac (Based on 2 ratings and reviews)

4.5

4.0

STANTON

September 30, 2025 - Vacation

FlixBus US
Pros: Good starting and arrival time Cons: Need a much improved departure location from Portland. Waiting on the curbside is not very convenient for passengers. It doesn't appear to be a "Bus Station", just a road side pick up area.

5.0

Amy

September 15, 2025 - Visiting friends

FlixBus US
Pros: We had a new bus driver. He did a great job. He told us what to expect and he answered all our questions. He should be recognized during his first week. Tips: Take the bus; it’s easy

There are several bus options that can take you from Portland to SeaTac:

See more details

How much is a bus ticket from Portland to SeaTac?

Bus tickets for a trip from Portland to SeaTac cost about RON 142 when you book at the cheapest time, 14 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 Portland to SeaTac by travel date

RON 330RON 220RON 110NovNov

If you're planning to travel by bus from Portland to SeaTac in the next month, the average ticket price is expected to range from RON 125 to RON 326. The cheapest bus tickets available in the next few weeks are for trips departing on December 3, 2026. If you’re looking to travel to SeaTac this week, bus tickets are available starting at RON 144.

Average bus ticket prices from Portland to SeaTac by month

RON 275RON 220RON 165RON 110RON 55JFMAMJJASOND

Taking the bus from Portland to SeaTac is usually cheapest in September, when the average ticket price is only RON 158. If you're planning to take the bus from Portland to SeaTac during November, keep in mind that bus ticket prices may be higher than usual, with an average price of RON 254. However, booking your trip in advance can help you score a ticket at a better price.

Prices as travel date approaches

RON 250RON 200RON 150RON 100RON 5001020

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 14 days in advance. This way, you can save up to RON 96.37 on your bus ticket compared to booking last-minute.

What bus companies travel from Portland to SeaTac?

There are two bus lines that have daily service from Portland to SeaTac that you can compare and book on Wanderu. Of these two carriers, Greyhound usually offers more choice, with 4 scheduled trips per day.

BusDaily TripsAvg. TimeAvg. Price
FlixBus US33h 15mRON 174.10
Greyhound44h 9mRON 194.73

  • 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 Portland to SeaTac, and the average ticket for this route costs only RON 174.10.

    USFLX-0USFLX-1USFLX-2USFLX-3USFLX-4USFLX-5

  • 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 4 bus trips from Portland to SeaTac every day, with the average journey taking around 4 hours and 9 minutes to complete. Bus tickets for Greyhound trips to SeaTac usually start from RON 119.71.

    Passengers boarding a Greyhound with their cheap bus tickets, ready for a comfortable and budget-friendly trip - WanderuA Greyhound bus parked, waiting for passengers with cheap bus tickets ready to travel - WanderuComfortable seating inside a Greyhound, perfect for those traveling with cheap bus tickets who want to make the most of their journey - WanderuA passenger using the power outlets available on Greyhound to access their affordable bus ticket digitally - WanderuA passenger uses Greyhound's onboard wifi to enjoy their intercity bus trip - WanderuA bus awaits passengers who have bought cheap Greyhound tickets - Wanderu

Frequently asked questions about traveling by bus from Portland to SeaTac

There are 6 scheduled buses that travel from Portland to SeaTac every day, so you have a decent number of options to choose from. This includes 5 direct buses, where you can stay on the same bus without having to transfer to a connecting bus at any point during your trip.

Trips per day

6

Direct trips

5

The bus takes an average of 3 hours and 39 minutes to cover the 134 miles from Portland to SeaTac. However, the fastest bus only takes 3 hours and 5 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 1:50 AM and the last bus leaves at 7:10 PM. To see the times for all buses from Portland to SeaTac, enter your specific travel dates in the search bar.

Earliest bus

1:50am

Latest bus

7:10pm

Saturday is usually the day when buses are busiest, as many travelers take the bus to enjoy the weekend in SeaTac. If you are planning to travel on a Saturday, 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, traveling mid-week is your best bet.

Most crowded

Saturday

Least crowded

Wednesday

City Information

Portland

Portland, OR - PDX-0Portland, OR - PDX-1Portland, OR - PDX-2

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 Portland?

Main departure station: 7411 NW Station Way

Most buses depart from the main station in Portland.

All bus stations in Portland:

  • 7411 NW Station Way

Where does the bus arrive in SeaTac?

Main arrival station: Sea-Tac Airport Bus Stop

These are the two stations where buses may stop when they arrive in SeaTac.

All bus stations in SeaTac:

  • Sea-Tac Airport Bus Stop

Need a return trip from SeaTac to Portland?

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