Cheap Flights from St. Louis (STL) to Seattle (BFI)

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Frequently asked questions

Is it cheaper to buy a plane ticket from Lambert-St. Louis Intl. Airport (STL) to Boeing Field last minute?
Booking your flight from Lambert-St. Louis Intl. Airport (STL) to BFI at the last minute could save you a tidy sum if you strike it lucky and find a good deal. However, airfares usually don't come down in price as the date of departure nears. If you hold out, flights could also be sold out or the best seats gone (hello, middle seat!). If you'd rather not hedge your bets, book well ahead of your departure date. It's worth noting that some of the best deals can be found up to 12 months in advance. If your preferred carrier hasn't released tickets yet, check back regularly as deals are updated on Expedia all the time.
What airports do you fly into for Seattle from St. Louis?
Boeing Field Airport (BFI), Seattle - Tacoma Intl. Airport (SEA) and Renton Municipal Airport (RNT) are your options when traveling from St. Louis to Seattle. Approximately 8 kilometers south of central Seattle, Boeing Field Airport (BFI) is the city's principal entry point. Consider factors like flight departure and arrival times and the distance to your hotel before you select an airport. Space Needle and Pike Place Market are two amazing attractions to check out when you get to your destination.
Can I change the date of my flight from STL to BFI?
It's easy to make amendments to your Lambert-St. Louis Intl. Airport (STL) to King County International Airport journey yourself. Access your details via the Expedia Trips portal and select "change flight." Look around for new flights and secure the one that fits your new plans. You'll see an estimate of flight change fees that may apply. You can also use our Customer Service portal to connect with our Virtual Agent and quickly get answers to your questions.

Travel information

Origin airport
Lambert-St. Louis Intl.
Destination airport
Boeing Field
Distance
2730 km

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