$249 Cheap Flights from Seattle (BFI) to Portland (PDX)

View $249 flight on Sat, Aug 23, 2025Opens in a new window

Popular airlines from Seattle, WA (BFI-Boeing Field) to Portland International Airport (PDX)

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Cheap Flights from Seattle to Portland (BFI-PDX)

Prices were available within the past 7 days and start at $249 for one-way flights and $528 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Air Excursions LLC
Sat, Sep 13 - Sat, Sep 27
BFI
Seattle
PDX
Portland
$528 Roundtrip, found 15 hours ago
$528
Roundtrip
found 15 hours ago
Select Air Excursions LLC flight, departing Sat, Sep 13 from Seattle to Portland, returning Sat, Sep 27, priced at $528 found 15 hours ago
Air Excursions LLC
Sun, Aug 3 - Sun, Aug 10
BFI
Seattle
PDX
Portland
$558 Roundtrip, found 4 hours ago
$558
Roundtrip
found 4 hours ago
Select Air Excursions LLC flight, departing Sun, Aug 3 from Seattle to Portland, returning Sun, Aug 10, priced at $558 found 4 hours ago
Air Excursions LLC
Sun, Aug 3 - Sun, Aug 10
BFI
Seattle
PDX
Portland
$608 Roundtrip, found 4 hours ago
$608
Roundtrip
found 4 hours ago
Select Air Excursions LLC flight, departing Sun, Aug 3 from Seattle to Portland, returning Sun, Aug 10, priced at $608 found 4 hours ago

Alternative airports near Portland

Prices were available within the past 7 days. Prices and availability are subject to change.

Select flight to Portland Intl. PDX. Cheapest and Closest option available. Average driving time to city center is 17 minutes. Flights from $558
PDX
Portland Intl.
CheapestClosest
Average driving time to city center17 min
Flights from $558
Flights from Seattle (BFI) to Portland (PDX)
Origin airport
Boeing Field
Destination airport
Portland Intl.
Airlines serving
Air Excursions LLC
Roundtrip price
$528
Distance
135 mi

Seattle to Portland Flights

The cheapest times to fly from Seattle to Portland

On average, Thursday can be the cheapest time to fly, according to data from the Airlines Reporting Corporation (ARC), one of the world's biggest databases for global airline sales. The data reveals that you could save up to 16% by flying on a Thursday—the cheapest day to travel on average—instead of a Sunday—the most expensive. Some of the most affordable flights from Seattle to Portland are during the month of September. You can find some of the cheapest flights from Seattle to Portland with Expedia's search tool and vast selection of airlines.

 

The best time to book a flight from Seattle to Portland

Sunday is one of the best days to book for cheap flights from Seattle to Portland: Tickets reserved on a Sunday cost between 6% and 13% less than those reserved on a Friday, according to ARC data. The data also suggests booking early can also lead to cheaper airfares. You could save 24% by buying your tickets for domestic flights at least a month in advance and 10% by booking international flights 2 months in advance.

 

How to find cheap round-trip tickets from Seattle to Portland

Being flexible with your dates and using Expedia's Price Drop Protection and Price Tracking features are some of the best ways of finding a cheap ticket from Seattle to Portland in 2025. You can also book with separate airlines for your outbound and return journeys, from $249 one-way. Expedia also offers Price Drop Protection, so if the cost of your airfare goes down after booking, you'll receive a credit for the difference*. This is available for a small fee, and is free to One Key Gold and Platinum tier members.

 

Expedia's Price Tracking feature means you can stay on top of airfares without manually checking every day. It sends you automated price alerts for cheap Seattle to Portland flights and uses historical data to indicate when the best time to book is. Download Expedia's free app to activate this handy tool in a few easy taps.

 

You could also save big by booking one of Expedia's vacation packages. Bundling together your Seattle to Portland airfare with your accommodations and car rental is often cheaper than booking everything separately. There’s also One Key, Expedia's generous rewards program. Join for free and you could earn One Key cash on most bookings to save on future adventures.

 

*Terms apply.

 

Disclaimer: ARC The statistics are based on average round-trip ticket prices between January and August 2023. The percentages you see are averages.

 

Frequently asked questions

How much does a flight from Boeing Field Airport (BFI) to Portland Intl. Airport (PDX) cost?
Cheap return flights from Boeing Field Airport (BFI) to Portland Intl. Airport (PDX) start at $558. This information is based on the cheapest price found on Expedia for this return journey departing within the next three months. This airfare is for a Air Excursions LLC flight leaving BFI on August 17 2025 and touching down at PDX. The price was last updated on July 23 2025 and has not changed since.
What is the cheapest month to fly from BFI to PDX?
The cheapest flights from BFI to PDX are usually during off-peak season, when demand is lower. To save money, avoid flying during public holidays, school breaks and major local events.
Which airlines fly direct from Boeing Field Airport (BFI) to Portland Intl. Airport (PDX)?
You can't take a direct flight from Seattle, WA (BFI-Boeing Field) to Portland Intl. Airport (PDX). However, you can easily travel to Portland without any layovers by taking off from Seattle - Tacoma Intl. Airport (SEA).
What is the cheapest airline that flies from BFI to PDX?
Currently, the cheapest airline offering one-way flights from BFI to PDX is Air Excursions LLC. You can jet off on this route from $249. This fare is based on the lowest price found on Expedia departing within the next three months. The flight takes off from BFI on August 30 2025. Prices were last updated on July 23 2025 and have not changed since.
How many flights per day from Boeing Field Airport (BFI) to Portland Intl. Airport (PDX)?
Direct flights from Boeing Field Airport (BFI) to Portland Intl. Airport (PDX) aren't available daily, so you'll have to take a flight with a layover. Explore your options with Expedia's filter tool. Enter your dates and select either "1 Stop" or "2+ Stops."
What day of the week has the most flights from BFI to PDX?
Generally you'll find the greatest selection of flight options on a Friday. Tuesdays tend to be the quietest.* But this can change depending on the time of year, airline and other factors.*Busiest/quietest day to travel is based on Expedia flight demand through January to December 2024.
What is the best time to fly from Boeing Field Airport (BFI) to Portland Intl. Airport (PDX)?
To avoid potential delays on the Boeing Field Airport (BFI) to Portland Intl. Airport (PDX) route, aim to travel before 3 PM. Departures after this time have a 22% higher chance of cancellation.**Most reliable time of the day and month to travel recommendation is based on January through August 2024 flight status data sourced from OAG's global flight data platform.
Is it cheaper to buy a plane ticket from Boeing Field Airport (BFI) to Portland Intl. Airport (PDX) last-minute?
Booking your ticket from BFI to PDX right before your getaway is generally more expensive. However, if there's some wiggle room with your travel dates and times, you could bag a cheap last-minute fare.
Is it cheaper to book a BFI to PDX flight and hotel package?
Compared with arranging hotels and flights separately, booking a BFI to PDX flight and hotel package with Expedia could result in significant savings. Better yet, having it all in one place will take the hassle out of planning your trip. Simply secure your flights and choose from our extensive range of stays, then personalize your trip with extras like tours and car rentals.
Can I cancel or change the date of my flight from Boeing Field Airport (BFI) to Portland Intl. Airport (PDX)?
Typically, you can modify or cancel your BFI to PDX flight. However, additional charges may apply, especially if you made your booking more than 24 hours ago. Double-check your itinerary for the airline's fees and policies on flight changes, or if you want more information, visit our Customer Service portal.

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Seattle nearby Airports

Seattle

Seattle - Tacoma Intl. to Portland
$116.60
Boeing Field to Portland
$528.00

Seattle Paine Field Intl. Airport

Seattle Paine Field Intl. Airport to Portland
$201.99
*Available to One Key members.