Flights to San Juan Islands from St. Louis - $90

Cheap Flights from St. Louis to San Juan Islands (STL-SEA)

Prices were available within the past 7 days and start at $90 for one-way flights and $179 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Tue, Jun 10 - Tue, Jun 17

STL

St. Louis

SEA

Seattle

$179 Roundtrip, found 2 days ago

$179

Roundtrip

found 2 days ago

Select Southwest Airlines flight, departing Tue, Jun 10 from St. Louis to Seattle, returning Tue, Jun 17, priced at $179 found 2 days ago

Fri, Aug 1 - Wed, Aug 6

STL

St. Louis

SEA

Seattle

$186 Roundtrip, found 10 hours ago

$186

Roundtrip

found 10 hours ago

Select United flight, departing Fri, Aug 1 from St. Louis to Seattle, returning Wed, Aug 6, priced at $186 found 10 hours ago

Tue, Jun 17 - Thu, Jul 17

STL

St. Louis

SEA

Seattle

$189 Roundtrip, just found

$189

Roundtrip

just found

Select Delta flight, departing Tue, Jun 17 from St. Louis to Seattle, returning Thu, Jul 17, priced at $189 just found

Thu, Sep 25 - Fri, Oct 3

STL

St. Louis

SEA

Seattle

$189 Roundtrip, just found

$189

Roundtrip

just found

Select American Airlines flight, departing Thu, Sep 25 from St. Louis to Seattle, returning Fri, Oct 3, priced at $189 just found

Thu, Aug 21 - Tue, Sep 2

STL

St. Louis

SEA

Seattle

$213 Roundtrip, found 4 hours ago

$213

Roundtrip

found 4 hours ago

Select United flight, departing Thu, Aug 21 from St. Louis to Seattle, returning Tue, Sep 2, priced at $213 found 4 hours ago

Tue, Aug 19 - Thu, Aug 21

STL

St. Louis

SEA

Seattle

$216 Roundtrip, found 2 days ago

$216

Roundtrip

found 2 days ago

Select Alaska Airlines flight, departing Tue, Aug 19 from St. Louis to Seattle, returning Thu, Aug 21, priced at $216 found 2 days ago