Cheap Flights From Seattle - Tacoma Intl. (SEA) To Lambert-St. Louis Intl. (STL)

Wander Wisely with exceptional service, 24/7 supportOpens in a new window

Feel at ease with free flight cancellations within 24 hours of booking

Change your flight without a fee on select flights

Find The Best Dates To Fly

Cheapest Flights from Seattle (SEA) to St. Louis (STL)

The cheapest flights to Lambert-St. Louis Intl. found within the past 7 days were CA $255 round trip and CA $176 one way. Prices and availability subject to change. Additional terms may apply.

Tue., Jul. 22 - Tue., Aug. 5
SEA
Seattle
STL
St. Louis
CA $255 Roundtrip, found 1 day ago
CA $255
Roundtrip
found 1 day ago
Select Delta flight, departing Tue., Jul. 22 from Seattle to St. Louis, returning Tue., Aug. 5, priced at CA $255 found 1 day ago
Wed., Jul. 16 - Tue., Jul. 29
SEA
Seattle
STL
St. Louis
CA $264 Roundtrip, found 1 day ago
CA $264
Roundtrip
found 1 day ago
Select Delta flight, departing Wed., Jul. 16 from Seattle to St. Louis, returning Tue., Jul. 29, priced at CA $264 found 1 day ago
Fri., Jul. 25 - Tue., Aug. 5
SEA
Seattle
STL
St. Louis
CA $290 Roundtrip, found 1 day ago
CA $290
Roundtrip
found 1 day ago
Select Delta flight, departing Fri., Jul. 25 from Seattle to St. Louis, returning Tue., Aug. 5, priced at CA $290 found 1 day ago
Mon., Jul. 14 - Tue., Jul. 29
SEA
Seattle
STL
St. Louis
CA $299 Roundtrip, found 1 day ago
CA $299
Roundtrip
found 1 day ago
Select Delta flight, departing Mon., Jul. 14 from Seattle to St. Louis, returning Tue., Jul. 29, priced at CA $299 found 1 day ago
Thu., Aug. 28 - Tue., Sep. 2
SEA
Seattle
STL
St. Louis
CA $322 Roundtrip, found 8 hours ago
CA $322
Roundtrip
found 8 hours ago
Select Alaska Airlines flight, departing Thu., Aug. 28 from Seattle to St. Louis, returning Tue., Sep. 2, priced at CA $322 found 8 hours ago
Wed., Jul. 30 - Tue., Aug. 12
SEA
Seattle
STL
St. Louis
CA $332 Roundtrip, found 1 day ago
CA $332
Roundtrip
found 1 day ago
Select Delta flight, departing Wed., Jul. 30 from Seattle to St. Louis, returning Tue., Aug. 12, priced at CA $332 found 1 day ago
Thu., Jun. 26 - Tue., Jul. 8
SEA
Seattle
STL
St. Louis
CA $341 Roundtrip, found 1 day ago
CA $341
Roundtrip
found 1 day ago
Select Delta flight, departing Thu., Jun. 26 from Seattle to St. Louis, returning Tue., Jul. 8, priced at CA $341 found 1 day ago
Tue., Jun. 24 - Wed., Jul. 9
SEA
Seattle
STL
St. Louis
CA $342 Roundtrip, found 1 day ago
CA $342
Roundtrip
found 1 day ago
Select Hawaiian Airlines flight, departing Tue., Jun. 24 from Seattle to St. Louis, returning Wed., Jul. 9, priced at CA $342 found 1 day ago
Mon., Sep. 22 - Sat., Sep. 27
SEA
Seattle
STL
St. Louis
CA $342 Roundtrip, found 1 day ago
CA $342
Roundtrip
found 1 day ago
Select Alaska Airlines flight, departing Mon., Sep. 22 from Seattle to St. Louis, returning Sat., Sep. 27, priced at CA $342 found 1 day ago
Sat., Sep. 13 - Sun., Sep. 21
SEA
Seattle
STL
St. Louis
CA $344 Roundtrip, found 2 days ago
CA $344
Roundtrip
found 2 days ago
Select Alaska Airlines flight, departing Sat., Sep. 13 from Seattle to St. Louis, returning Sun., Sep. 21, priced at CA $344 found 2 days ago

Popular Flight Routes from Seattle (SEA)

Travelers at SEA love to visit these top cities. Roam to the top destinations from Seattle (SEA) today with the cheap prices from Travelocity!

Popular Flight Routes from St. Louis (STL)

Travelers at STL love to visit these top cities. Roam to the top destinations from St. Louis(STL) today with the cheap prices from Travelocity!

*Price based on the lowest price found within past 24 hours and based upon one night stay for two adults over the next thirty days. Prices and availability subject to change. Additional terms may apply.