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

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Frequently asked questions

Is it cheaper to buy a plane ticket from Lambert-St. Louis Intl. Airport (STL) to Lake Union Seaplane Base Airport (LKE) last minute?
When it's time to book your flights, being prepared pays dividends. While it's possible to find a deal on a STL to Kenmore Air Harbor Seaplane Base flight at the last minute, prices usually don't get cheaper as the date of departure nears. Based on flight pricing and demand studies in 2022, we have found that the sweet spot to book a domestic flight is between 28 – 35 days ahead. For international flights it's between three and four months.
What airports do you fly into for Seattle from St. Louis?
Lake Union Seaplane Base Airport (LKE), Seattle - Tacoma Intl. Airport (SEA) and Boeing Field Airport (BFI) are your choices when flying from St. Louis to Seattle. About 2 kilometers north of downtown Seattle, Lake Union Seaplane Base Airport (LKE) is the city's major gateway. Keep in mind factors such as flight schedules and the distance to your hotel before deciding where you fly into. Space Needle and Pike Place Market are two fantastic attractions to visit when you arrive at your destination.
Can I change the date of my flight from STL to LKE?
We know life happens and plans change, so Expedia is here to help make things easier. To start, access your Lambert-St. Louis Intl. Airport (STL) to Kenmore Air Harbor Seaplane Base itinerary through the Expedia Trips portal and look up the ticket rules about what changes can be made. If you booked your airfare in the last 24 hours, some carriers will let you cancel for free and organize new flights. If you bought your fare more than 24 hours ago, connect with us via our Customer Service portal to find out what your options are.

Travel information

Origin airport
Lambert-St. Louis Intl.
Destination airport
Lake Union Seaplane Base
Distance
2734 km

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St. Louis to Seattle Flights

Whether you’re looking for a grand adventure or just want to get away for a last-minute break, flights from St. Louis to Seattle offer the perfect respite. Not only does exploring Seattle provide the chance to make some magical memories, dip into delectable dishes, and tour the local landmarks, but the cheap airfare means you won’t bust your budget. So no matter whether your ideal itinerary involves flying one way, non-stop, or round trip, you’re bound to find flights that match your schedule on Expedia, and at prices that won’t shock your wallet.

Bagging a cheap flight from St. Louis to Seattle may mean more dollars to spend on for one-of-a-kind souvenirs when you arrive, but it doesn’t mean you have to skimp on your travel experience, as Expedia offers a sizzling selection of cheap airlines that’ll put you in your happy place on their planes, whether that’s getting lost in a hair-raising airport thriller, dreaming on the passing landscape over a glass of bubbly, or jotting down your vacation bucket list at 38,000 feet. There’s also bound to be plenty of opportunities to snap a few photos of the high life that will make your friends green with envy. After all, enjoying the journey is part of the fun.

With so many affordable flights and so many wonderful adventures awaiting you, there’s no reason to put off booking a fantastic flight from to today. So don’t leave it to the last minute to make your dream trip a reality: pack your bags with your go-to travel accessories, put together your list of must-see attractions and can’t-miss activities, and get ready to broaden your horizons – with Expedia, the wonders of Seattle are only a plane trip away. Book your travel arrangements with us today!

If you would like to book flights to Seattle more flexibly many prefer to purchase one-way tickets with options to take different airlines. A one way ticket to Seattle is now!

St. Louis to Seattle Flights

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