¥13,680 Cheap Flights from St. Louis (STL) to Seattle (SEA)

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

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

Prices were available within the past 7 days and start at ¥13,680 for one-way flights and ¥25,780 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

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

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

January is typically the cheapest month to fly

From ¥19,361 - ¥42,604 per traveler.

Frequently asked questions

How much is a flight from Lambert Field to SEA?
Round-trip tickets from Lambert Field to Seattle - Tacoma Intl. Airport (SEA) start from ¥25,780. This is based on fares advertised within the last 7 days on Expedia for flights departing within the next year — make your booking ASAP so you don't miss out. Prices and availability are subject to change. Additional terms apply.
Do I need to pay a cancellation fee if I cancel my flight from St. Louis Lambert International Airport to Sea-Tac Airport?
When it comes to cancellation fees, each airline has its own terms and conditions. If you decide to cancel your getaway, visit our Customer Service Portal.
How do I find cheap flights from Lambert-St. Louis Intl. Airport (STL) to Sea-Tac Airport 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 Lambert Field to Seattle - Tacoma Intl. Airport (SEA) flights, you'll see a "no change fees" filter for you to select.
How many hours is the flight from STL to Seattle - Tacoma Intl. Airport (SEA)?
It takes around 7 hours and 19 minutes to get from Lambert Field to Sea-Tac Airport. But with some TV shows and a magazine or two, the time will go by quicker.
How far is the flight from St. Louis Lambert International Airport to Seattle - Tacoma Intl. Airport (SEA)?
Around 2,700 kilometers separates St. Louis and SeaTac, so pack something to help you fill in a few hours. That latest bestseller you haven't had time to finish will be perfect.
Which airlines fly direct from St. Louis Lambert International Airport to SEA?
Flying straight from St. Louis Lambert International Airport to Sea-Tac Airport is simple with Alaska Airlines (AS). This leading carrier offers 86 flights each month.
Are Lambert Field to Sea-Tac Airport flight tickets cheaper when they're purchased at the last minute?
Booking your trip from Lambert Field to Seattle - Tacoma Intl. Airport (SEA) last minute could be your ticket to a great deal. However, it could end up costing a great deal more! If you'd rather avoid the risk, book well ahead of your departure date. In fact, Expedia has some of the best bargains up to 12 months in advance. If your preferred carrier hasn't released tickets yet, check back frequently as deals are updated all the time on Expedia.

Travel information

Origin airport
Lambert-St. Louis Intl.
Destination airport
Seattle - Tacoma Intl.
Roundtrip price
¥25,780
Distance
2728 km
Average flight time
2 hours 33 mins

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