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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$3,006 for one-way flights and NT$22,521 for roundtrip, for the period specified. Prices and availability are subject to change.

All deals

One way

Roundtrip

Fri, Aug 7 - Tue, Aug 11

STL

St. Louis

SEA

Seattle

NT$22,521

Roundtrip

Found 4 hours ago

Select American Airlines flight, departing Fri, Aug 7 from St. Louis to Seattle, returning Tue, Aug 11, priced at NT$22,521 Found 4 hours ago

Fri, Aug 7 - Tue, Aug 11

STL

St. Louis

SEA

Seattle

NT$22,682

Roundtrip

Found 4 hours ago

Select United flight, departing Fri, Aug 7 from St. Louis to Seattle, returning Tue, Aug 11, priced at NT$22,682 Found 4 hours ago

Fri, Aug 7 - Tue, Aug 11

STL

St. Louis

SEA

Seattle

NT$22,849

Roundtrip

Found 4 hours ago

Select American Airlines flight, departing Fri, Aug 7 from St. Louis to Seattle, returning Tue, Aug 11, priced at NT$22,849 Found 4 hours ago

Fri, Aug 7 - Tue, Aug 11

STL

St. Louis

SEA

Seattle

NT$23,011

Roundtrip

Found 4 hours ago

Select United flight, departing Fri, Aug 7 from St. Louis to Seattle, returning Tue, Aug 11, priced at NT$23,011 Found 4 hours ago

Fri, Aug 7 - Tue, Aug 11

STL

St. Louis

SEA

Seattle

NT$23,178

Roundtrip

Found 4 hours ago

Select American Airlines flight, departing Fri, Aug 7 from St. Louis to Seattle, returning Tue, Aug 11, priced at NT$23,178 Found 4 hours ago

Fri, Aug 7 - Tue, Aug 11

STL

St. Louis

SEA

Seattle

NT$23,490

Roundtrip

Found 4 hours ago

Select United flight, departing Fri, Aug 7 from St. Louis to Seattle, returning Tue, Aug 11, priced at NT$23,490 Found 4 hours ago

Fri, Aug 7 - Tue, Aug 11

STL

St. Louis

SEA

Seattle

NT$23,651

Roundtrip

Found 4 hours ago

Select United flight, departing Fri, Aug 7 from St. Louis to Seattle, returning Tue, Aug 11, priced at NT$23,651 Found 4 hours ago

Fri, Aug 7 - Tue, Aug 11

STL

St. Louis

SEA

Seattle

NT$23,652

Roundtrip

Found 4 hours ago

Select United flight, departing Fri, Aug 7 from St. Louis to Seattle, returning Tue, Aug 11, priced at NT$23,652 Found 4 hours ago

Fri, Aug 7 - Tue, Aug 11

STL

St. Louis

SEA

Seattle

NT$23,819

Roundtrip

Found 4 hours ago

Select United flight, departing Fri, Aug 7 from St. Louis to Seattle, returning Tue, Aug 11, priced at NT$23,819 Found 4 hours ago

Fri, Aug 7 - Tue, Aug 11

STL

St. Louis

SEA

Seattle

NT$24,655

Roundtrip

Found 4 hours ago

Select Delta flight, departing Fri, Aug 7 from St. Louis to Seattle, returning Tue, Aug 11, priced at NT$24,655 Found 4 hours 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$22,521
Average flight time	4 hours 31 mins

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NT$3,006 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