¥13,200 Cheap Flights from Seattle (SEA) to St. Louis (STL)

Popular airlines from Seattle-Tacoma International Airport (SEA) to St. Louis Lambert Intl. Airport (STL)

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Cheap Flights from Seattle to St. Louis (SEA-STL)

Prices were available within the past 7 days and start at ¥13,200 for one-way flights and ¥26,300 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Delta
American Airlines
American Airlines
Delta
American Airlines
American Airlines
American Airlines
Delta
American Airlines
United

Find the cheapest month to fly from Seattle (SEA) to St. Louis (STL)

December is typically the cheapest month to fly

From ¥20,925 - ¥69,487 per traveler.

Frequently asked questions

How much is a flight from Sea-Tac Airport to Lambert-St. Louis Intl. Airport (STL)?
If you're traveling from SEA to Lambert-St. Louis Intl. Airport (STL), round-trip flights start from ¥26,300. This figure is based on fares advertised within the last 7 days on Expedia for flights departing within the next year, so don't let a good deal pass you by. Book now and save yourself money and time. Prices and availability are subject to change. Additional terms apply.
Do I need to pay a cancellation fee if I cancel my flight from Sea-Tac Airport to Lambert-St. Louis Intl. Airport (STL)?
This differs between airlines, as each has its own terms and conditions. Visit the Customer Service Portal, where there are instructions on how to cancel your flight online.
How do I find cheap flights from Sea-Tac Airport to Lambert Field that have flexible change policies?
Many airlines offer the option to reschedule your flight without a change fee. All you pay is the difference between the original flight and the new flight. When you're searching for Seattle - Tacoma Intl. Airport (SEA) to Lambert Field flights, you'll see a "no change fees" filter for you to select.
How many hours is the flight from Sea-Tac Airport to Lambert-St. Louis Intl. Airport (STL)?
Lasting around 6 hours and 41 minutes, the flight between Seattle - Tacoma Intl. Airport (SEA) and Lambert-St. Louis Intl. Airport (STL) is a great opportunity to do some last-minute trip planning. Why not use some of this time to work on your itinerary for St. Louis?
How far is the flight from Sea-Tac Airport to St. Louis Lambert International Airport?
You'll be up above the clouds for a while, as the flight distance from SEA to Lambert-St. Louis Intl. Airport (STL) is 2,700 kilometers. Create a playlist of your favorite podcasts before you leave home to keep yourself entertained during the journey.
Which airlines fly direct from Seattle - Tacoma Intl. Airport (SEA) to St. Louis Lambert International Airport?
Offering 86 flights monthly, Alaska Airlines (AS) is a popular choice when flying straight from SEA to Lambert-St. Louis Intl. Airport (STL).
Are Seattle - Tacoma Intl. Airport (SEA) to STL flight tickets cheaper when they're purchased at the last minute?
Booking last minute from Sea-Tac Airport to STL can be hit-or-miss. It is possible to score a bargain, but you could also completely miss out! If you'd rather start planning ahead of time, Expedia compares flight deals up to a year in advance. Just bear in mind that not all airlines publish their prices so far in advance. Our suggestion? Check back often as updates are made frequently.

Travel information

Travel information

Origin airport
Seattle - Tacoma Intl.
Destination airport
Lambert-St. Louis Intl.
Airlines serving
American Airlines, Delta, United
Roundtrip price
¥26,300
Distance
2728 km
Average flight time
6 hours 33 mins

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