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Flights from St. Louis Lambert Intl. Airport (STL) to Seattle-Tacoma International Airport (SEA)
Flights to Seattle
Washington
United States of America
Flights
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Popular airlines from St. Louis Lambert Intl. Airport (STL) to Seattle-Tacoma International Airport (SEA)

Alaska Airlines
American Airlines
United
Delta
Southwest Airlines
Frontier Airlines

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

Prices were available within the past 7 days and start at NT$4,310 for one-way flights and NT$8,618 for roundtrip, for the period specified. Prices and availability are subject to change.

All deals

One way

Roundtrip

Sat, Dec 5 - Tue, Dec 8

STL

St. Louis

SEA

Seattle

NT$8,618

Roundtrip

Found 1 day ago

Select Delta flight, departing Sat, Dec 5 from St. Louis to Seattle, returning Tue, Dec 8, priced at NT$8,618 Found 1 day ago

Sat, Dec 5 - Tue, Dec 8

STL

St. Louis

SEA

Seattle

NT$9,106

Roundtrip

Found 1 day ago

Select American Airlines flight, departing Sat, Dec 5 from St. Louis to Seattle, returning Tue, Dec 8, priced at NT$9,106 Found 1 day ago

Sat, Dec 5 - Tue, Dec 8

STL

St. Louis

SEA

Seattle

NT$9,591

Roundtrip

Found 1 day ago

Select American Airlines flight, departing Sat, Dec 5 from St. Louis to Seattle, returning Tue, Dec 8, priced at NT$9,591 Found 1 day ago

Sat, Dec 5 - Tue, Dec 8

STL

St. Louis

SEA

Seattle

NT$10,223

Roundtrip

Found 1 day ago

Select Delta flight, departing Sat, Dec 5 from St. Louis to Seattle, returning Tue, Dec 8, priced at NT$10,223 Found 1 day ago

Sat, Dec 5 - Tue, Dec 8

STL

St. Louis

SEA

Seattle

NT$10,393

Roundtrip

Found 1 day ago

Select United flight, departing Sat, Dec 5 from St. Louis to Seattle, returning Tue, Dec 8, priced at NT$10,393 Found 1 day ago

Sat, Dec 5 - Tue, Dec 8

STL

St. Louis

SEA

Seattle

NT$10,703

Roundtrip

Found 1 day ago

Select Delta flight, departing Sat, Dec 5 from St. Louis to Seattle, returning Tue, Dec 8, priced at NT$10,703 Found 1 day ago

Sat, Dec 5 - Tue, Dec 8

STL

St. Louis

SEA

Seattle

NT$10,708

Roundtrip

Found 1 day ago

Select American Airlines flight, departing Sat, Dec 5 from St. Louis to Seattle, returning Tue, Dec 8, priced at NT$10,708 Found 1 day ago

Sat, Dec 5 - Tue, Dec 8

STL

St. Louis

SEA

Seattle

NT$10,709

Roundtrip

Found 1 day ago

Select United flight, departing Sat, Dec 5 from St. Louis to Seattle, returning Tue, Dec 8, priced at NT$10,709 Found 1 day ago

Sat, Dec 5 - Tue, Dec 8

STL

St. Louis

SEA

Seattle

NT$10,879

Roundtrip

Found 1 day ago

Select United flight, departing Sat, Dec 5 from St. Louis to Seattle, returning Tue, Dec 8, priced at NT$10,879 Found 1 day ago

Sat, Dec 5 - Tue, Dec 8

STL

St. Louis

SEA

Seattle

NT$10,993

Roundtrip

Found 1 day ago

Select Delta flight, departing Sat, Dec 5 from St. Louis to Seattle, returning Tue, Dec 8, priced at NT$10,993 Found 1 day ago

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

April is typically the cheapest month to fly

From NT$5,660 - NT$9,181 per traveler.

Travel information

Origin airport	St. Louis Lambert Intl. Airport
Destination airport	Seattle-Tacoma International Airport
Distance	2,744 km away
Airlines serving	Alaska Airlines, American Airlines, United, Delta, Southwest Airlines, Frontier Airlines
Popular airline	Alaska Airlines
Roundtrip price	NT$8,618
Average flight time	4 hours 31 mins

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NT$4,310 Cheap Flights from St. Louis (STL) to Seattle (SEA)

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

Be in the know

Book smarter

Earn twice

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

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

April is typically the cheapest month to flyApril is typically the cheapest month to fly

Travel information

Explore a world of travel with Expedia

April is typically the cheapest month to fly