Cheap flights from St. Louis to San Juan Island

View AU$144 flight on Tue, 2 Sep. 2025Opens in a new window

Popular airlines from St. Louis to San Juan Island

  • 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 St. Louis (STL) to San Juan Island (SEA)

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.

Alaska Airlines
Sun, 17 Aug. - Sun, 24 Aug.
STL
St. Louis
SEA
Seattle
AU$461 Return, found 5 days ago
AU$461
Return
found 5 days ago
Select Alaska Airlines flight, departing Sun, 17 Aug. from St. Louis to Seattle, returning Sun, 24 Aug., priced at AU$461 found 5 days ago
Alaska Airlines
Sun, 17 Aug. - Sun, 24 Aug.
STL
St. Louis
SEA
Seattle
AU$495 Return, found 5 days ago
AU$495
Return
found 5 days ago
Select Alaska Airlines flight, departing Sun, 17 Aug. from St. Louis to Seattle, returning Sun, 24 Aug., priced at AU$495 found 5 days ago
Alaska Airlines
Sun, 17 Aug. - Sun, 24 Aug.
STL
St. Louis
SEA
Seattle
AU$498 Return, found 5 days ago
AU$498
Return
found 5 days ago
Select Alaska Airlines flight, departing Sun, 17 Aug. from St. Louis to Seattle, returning Sun, 24 Aug., priced at AU$498 found 5 days ago
Delta
Sun, 17 Aug. - Sun, 24 Aug.
STL
St. Louis
SEA
Seattle
AU$514 Return, found 5 days ago
AU$514
Return
found 5 days ago
Select Delta flight, departing Sun, 17 Aug. from St. Louis to Seattle, returning Sun, 24 Aug., priced at AU$514 found 5 days ago
United
Sun, 17 Aug. - Sun, 24 Aug.
STL
St. Louis
SEA
Seattle
AU$521 Return, found 5 days ago
AU$521
Return
found 5 days ago
Select United flight, departing Sun, 17 Aug. from St. Louis to Seattle, returning Sun, 24 Aug., priced at AU$521 found 5 days ago
American Airlines
Sun, 17 Aug. - Sun, 24 Aug.
STL
St. Louis
SEA
Seattle
AU$529 Return, found 5 days ago
AU$529
Return
found 5 days ago
Select American Airlines flight, departing Sun, 17 Aug. from St. Louis to Seattle, returning Sun, 24 Aug., priced at AU$529 found 5 days ago
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