A city skyline with a prominent arch bridge at sunset.

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

Alaska Airlines
American Airlines
United
Delta
Southwest Airlines
Frontier Airlines

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

Prices were available within the past 7 days and start at NT$6,031 for one-way flights and NT$12,084 for roundtrip, for the period specified. Prices and availability are subject to change.

All deals

One way

Roundtrip

Wed, Aug 12 - Sun, Aug 23

SEA

西雅圖

STL

聖路易

NT$12,084

Roundtrip

Found 4 days ago

Select 美國航空 flight, departing Wed, Aug 12 from 西雅圖 to 聖路易, returning Sun, Aug 23, priced at NT$12,084 Found 4 days ago

Wed, Aug 12 - Sun, Aug 23

SEA

西雅圖

STL

聖路易

NT$12,690

Roundtrip

Found 4 days ago

Select 美國航空 flight, departing Wed, Aug 12 from 西雅圖 to 聖路易, returning Sun, Aug 23, priced at NT$12,690 Found 4 days ago

Wed, Aug 12 - Sun, Aug 23

SEA

西雅圖

STL

聖路易

NT$13,360

Roundtrip

Found 4 days ago

Select 達美航空 flight, departing Wed, Aug 12 from 西雅圖 to 聖路易, returning Sun, Aug 23, priced at NT$13,360 Found 4 days ago

Wed, Aug 12 - Sun, Aug 23

SEA

西雅圖

STL

聖路易

NT$13,651

Roundtrip

Found 4 days ago

Select 美國航空 flight, departing Wed, Aug 12 from 西雅圖 to 聖路易, returning Sun, Aug 23, priced at NT$13,651 Found 4 days ago

Wed, Aug 12 - Sun, Aug 23

SEA

西雅圖

STL

聖路易

NT$13,678

Roundtrip

Found 4 days ago

Select 聯合航空 flight, departing Wed, Aug 12 from 西雅圖 to 聖路易, returning Sun, Aug 23, priced at NT$13,678 Found 4 days ago

Wed, Aug 12 - Sun, Aug 23

SEA

西雅圖

STL

聖路易

NT$13,679

Roundtrip

Found 4 days ago

Select 美國航空 flight, departing Wed, Aug 12 from 西雅圖 to 聖路易, returning Sun, Aug 23, priced at NT$13,679 Found 4 days ago

Wed, Aug 12 - Sun, Aug 23

SEA

西雅圖

STL

聖路易

NT$13,965

Roundtrip

Found 4 days ago

Select 達美航空 flight, departing Wed, Aug 12 from 西雅圖 to 聖路易, returning Sun, Aug 23, priced at NT$13,965 Found 4 days ago

Wed, Aug 12 - Sun, Aug 23

SEA

西雅圖

STL

聖路易

NT$14,285

Roundtrip

Found 4 days ago

Select 聯合航空 flight, departing Wed, Aug 12 from 西雅圖 to 聖路易, returning Sun, Aug 23, priced at NT$14,285 Found 4 days ago

Wed, Aug 12 - Sun, Aug 23

SEA

西雅圖

STL

聖路易

NT$14,317

Roundtrip

Found 4 days ago

Select 達美航空 flight, departing Wed, Aug 12 from 西雅圖 to 聖路易, returning Sun, Aug 23, priced at NT$14,317 Found 4 days ago

Wed, Aug 12 - Sun, Aug 23

SEA

西雅圖

STL

聖路易

NT$14,922

Roundtrip

Found 4 days ago

Select 達美航空 flight, departing Wed, Aug 12 from 西雅圖 to 聖路易, returning Sun, Aug 23, priced at NT$14,922 Found 4 days ago

Travel information

Origin airport	Seattle-Tacoma International Airport
Destination airport	St. Louis Lambert Intl. 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$12,084
Average flight time	4 hours 7 mins

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NT$6,031 Cheap Flights from Seattle (SEA) to St. Louis (STL)

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

Be in the know

Book smarter

Earn twice

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

Travel information

Explore a world of travel with Expedia