About King County International Airport
King County International Airport (BFI), also called Boeing Field, serves Seattle with limited commercial service.
In our search over 29 November to 6 December 2026, Air Excursions flies direct from Portland, and one stop is available from Puerto Vallarta, Los Cabos and Anchorage. The fares below are dated.
Taxis and ride-hailing connect the airport with downtown Seattle in about 15 minutes.
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Cheap Flights to King County International Airport
Lowest one-way fares to Seattle from popular departure cities
*All above fares are one way/round trip. Fares incl. all fuel surcharges, taxes & fees and our service fees. Displayed fares are subject to change and cannot be guaranteed at the time of booking. See all booking terms and conditions.
Cheapest Routes to King County International Airport
Lowest one-way fares we found for 29 November to 6 December 2026 on direct and one-stop itineraries booked on a single ticket. Fares change often, so check your own dates.
| From | Airline | Stops | Duration | Date | Fare from |
|---|---|---|---|---|---|
| Portland (PDX) | Air Excursions | Direct | 0h 50m | 4 Dec | $101 |
| Anchorage (ANC) | Alaska Airlines | 1 stop | 12h 15m | 1 Dec | $401 |
| Puerto Vallarta (PVR) | Alaska Airlines | 1 stop | 7h 18m | 3 Dec | $417 |
| Los Cabos (SJD) | Alaska Airlines | 1 stop | 7h 31m | 3 Dec | $448 |
Airlines Flying to King County International Airport
Carriers that showed up in our search for this airport
Air Excursions
Air Excursions flights to King County International Airport appeared in our search from 1 city, with one-way fares starting at $101 for 29 November to 6 December 2026.
Routes: Portland (PDX)
Alaska Airlines
Alaska Airlines flights to King County International Airport appeared in our search from 3 cities, with one-way fares starting at $401 for 29 November to 6 December 2026.
Routes: Puerto Vallarta (PVR), Los Cabos (SJD), Anchorage (ANC)
Things to Do Near King County International Airport
Highlights around Seattle
Museum of Flight
One of the largest air and space museums.
Pike Place Market
A famous market.
Space Needle
City views.
Puget Sound
Ferries and islands.
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Frequently Asked Questions
Everything you need to know about flying to King County International Airport
Which airport serves Seattle?
King County International Airport (BFI) serves Seattle, United States. It is about 10 km south of downtown Seattle, also called Boeing Field.
Are there direct flights to Seattle?
Yes. In our search over 29 November to 6 December 2026 we found direct flights from Portland (Air Excursions). Availability varies by date.
What is the cheapest way to fly to Seattle?
The lowest fare we found was US$101 one-way, direct from Portland on Air Excursions, on 4 Dec 2026. Fares change often, so compare dates.
Do I need a visa to visit United States?
Citizens of many countries can enter the United States visa-free through the Visa Waiver Program with an approved ESTA; others need a visa. Check the rules for your passport before you travel.
What currency is used in Seattle?
The United States uses the US dollar (USD).
