Cheap flights from Seattle to Northeast Missouri

View AU$135 flight on Wed, 27 Aug. 2025Opens in a new window

Popular airlines from Seattle to Northeast Missouri

  • Jetstar

    Jetstar

  • Qantas Airways

    Qantas Airways

  • Virgin Australia

    Virgin Australia

  • Scoot

    Scoot

  • American Airlines

    American Airlines

  • Emirates

    Emirates

  • United

    United

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Cheap Flights from Seattle (SEA) to Northeast Missouri (STL)

Prices were available within the past 7 days for one-way flights and round trip tickets for the period specified. Prices and availability are subject to change. Additional terms apply.

American Airlines
Wed, 27 Aug. - Tue, 23 Sep.
SEA
Seattle
STL
St. Louis
AU$269 Return, found 1 day ago
AU$269
Return
found 1 day ago
Select American Airlines flight, departing Wed, 27 Aug. from Seattle to St. Louis, returning Tue, 23 Sep., priced at AU$269 found 1 day ago
Delta
Wed, 27 Aug. - Tue, 23 Sep.
SEA
Seattle
STL
St. Louis
AU$269 Return, found 1 day ago
AU$269
Return
found 1 day ago
Select Delta flight, departing Wed, 27 Aug. from Seattle to St. Louis, returning Tue, 23 Sep., priced at AU$269 found 1 day ago
Delta
Wed, 27 Aug. - Tue, 23 Sep.
SEA
Seattle
STL
St. Louis
AU$324 Return, found 1 day ago
AU$324
Return
found 1 day ago
Select Delta flight, departing Wed, 27 Aug. from Seattle to St. Louis, returning Tue, 23 Sep., priced at AU$324 found 1 day ago
Alaska Airlines
Wed, 27 Aug. - Tue, 23 Sep.
SEA
Seattle
STL
St. Louis
AU$331 Return, found 1 day ago
AU$331
Return
found 1 day ago
Select Alaska Airlines flight, departing Wed, 27 Aug. from Seattle to St. Louis, returning Tue, 23 Sep., priced at AU$331 found 1 day ago
Delta
Wed, 27 Aug. - Tue, 23 Sep.
SEA
Seattle
STL
St. Louis
AU$331 Return, found 1 day ago
AU$331
Return
found 1 day ago
Select Delta flight, departing Wed, 27 Aug. from Seattle to St. Louis, returning Tue, 23 Sep., priced at AU$331 found 1 day ago
United
Wed, 27 Aug. - Tue, 23 Sep.
SEA
Seattle
STL
St. Louis
AU$362 Return, found 1 day ago
AU$362
Return
found 1 day ago
Select United flight, departing Wed, 27 Aug. from Seattle to St. Louis, returning Tue, 23 Sep., priced at AU$362 found 1 day ago

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

November is typically the cheapest month to fly

From AU$212 - AU$640 per traveller.

Graph displaying average flight prices per month

*Available to Expedia members.