Flights from St. Louis to Puget Sound

Cheapest flights from St. Louis

These prices were available within the past 7 days. Prices quoted are per person, round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Fri, Aug 8 - Tue, Aug 19

STL

Lambert-St. Louis Intl.

SEA

Seattle - Tacoma Intl.

$258 Roundtrip, found 1 day ago

$258

Roundtrip

found 1 day ago

Select Frontier Airlines flight, departing Fri, Aug 8 from Lambert-St. Louis Intl. to Seattle - Tacoma Intl., returning Tue, Aug 19, priced at $258 found 1 day ago

Fri, Aug 8 - Fri, Aug 15

STL

Lambert-St. Louis Intl.

SEA

Seattle - Tacoma Intl.

$268 Roundtrip, found 1 day ago

$268

Roundtrip

found 1 day ago

Select Frontier Airlines flight, departing Fri, Aug 8 from Lambert-St. Louis Intl. to Seattle - Tacoma Intl., returning Fri, Aug 15, priced at $268 found 1 day ago

Tue, Aug 12 - Tue, Aug 19

STL

Lambert-St. Louis Intl.

SEA

Seattle - Tacoma Intl.

$292 Roundtrip, found 1 day ago

$292

Roundtrip

found 1 day ago

Select Delta flight, departing Tue, Aug 12 from Lambert-St. Louis Intl. to Seattle - Tacoma Intl., returning Tue, Aug 19, priced at $292 found 1 day ago

Sun, Aug 10 - Tue, Aug 19

STL

Lambert-St. Louis Intl.

SEA

Seattle - Tacoma Intl.

$298 Roundtrip, found 1 day ago

$298

Roundtrip

found 1 day ago

Select Frontier Airlines flight, departing Sun, Aug 10 from Lambert-St. Louis Intl. to Seattle - Tacoma Intl., returning Tue, Aug 19, priced at $298 found 1 day ago

Fri, Aug 8 - Sun, Aug 17

STL

Lambert-St. Louis Intl.

SEA

Seattle - Tacoma Intl.

$308 Roundtrip, found 1 day ago

$308

Roundtrip

found 1 day ago

Select Frontier Airlines flight, departing Fri, Aug 8 from Lambert-St. Louis Intl. to Seattle - Tacoma Intl., returning Sun, Aug 17, priced at $308 found 1 day ago

Tue, Sep 16 - Thu, Sep 25

STL

Lambert-St. Louis Intl.

BLI

Bellingham Intl.

$328 Roundtrip, found 16 hours ago

$328

Roundtrip

found 16 hours ago

Select Hawaiian Airlines flight, departing Tue, Sep 16 from Lambert-St. Louis Intl. to Bellingham Intl., returning Thu, Sep 25, priced at $328 found 16 hours ago

Tue, Sep 16 - Wed, Sep 24

STL

Lambert-St. Louis Intl.

BLI

Bellingham Intl.

$332 Roundtrip, found 16 hours ago

$332

Roundtrip

found 16 hours ago

Select Hawaiian Airlines flight, departing Tue, Sep 16 from Lambert-St. Louis Intl. to Bellingham Intl., returning Wed, Sep 24, priced at $332 found 16 hours ago

Mon, Sep 15 - Thu, Sep 25

STL

Lambert-St. Louis Intl.

BLI

Bellingham Intl.

$334 Roundtrip, found 16 hours ago

$334

Roundtrip

found 16 hours ago

Select Hawaiian Airlines flight, departing Mon, Sep 15 from Lambert-St. Louis Intl. to Bellingham Intl., returning Thu, Sep 25, priced at $334 found 16 hours ago

Mon, Sep 15 - Wed, Sep 24

STL

Lambert-St. Louis Intl.

BLI

Bellingham Intl.

$338 Roundtrip, found 16 hours ago

$338

Roundtrip

found 16 hours ago

Select Hawaiian Airlines flight, departing Mon, Sep 15 from Lambert-St. Louis Intl. to Bellingham Intl., returning Wed, Sep 24, priced at $338 found 16 hours ago

Tue, Aug 12 - Wed, Aug 13

STL

Lambert-St. Louis Intl.

SEA

Seattle - Tacoma Intl.

$343 Roundtrip, found 1 day ago

$343

Roundtrip

found 1 day ago

Select Delta flight, departing Tue, Aug 12 from Lambert-St. Louis Intl. to Seattle - Tacoma Intl., returning Wed, Aug 13, priced at $343 found 1 day ago

Sun, Aug 10 - Sun, Aug 17

STL

Lambert-St. Louis Intl.

SEA

Seattle - Tacoma Intl.

$348 Roundtrip, found 1 day ago

$348

Roundtrip

found 1 day ago

Select Frontier Airlines flight, departing Sun, Aug 10 from Lambert-St. Louis Intl. to Seattle - Tacoma Intl., returning Sun, Aug 17, priced at $348 found 1 day ago

Sat, Sep 20 - Thu, Sep 25

STL

Lambert-St. Louis Intl.

BLI

Bellingham Intl.

$349 Roundtrip, found 16 hours ago

$349

Roundtrip

found 16 hours ago

Select Hawaiian Airlines flight, departing Sat, Sep 20 from Lambert-St. Louis Intl. to Bellingham Intl., returning Thu, Sep 25, priced at $349 found 16 hours ago

Tue, Sep 16 - Tue, Sep 23

STL

Lambert-St. Louis Intl.

BLI

Bellingham Intl.

$353 Roundtrip, found 16 hours ago

$353

Roundtrip

found 16 hours ago

Select Hawaiian Airlines flight, departing Tue, Sep 16 from Lambert-St. Louis Intl. to Bellingham Intl., returning Tue, Sep 23, priced at $353 found 16 hours ago

Wed, Aug 6 - Fri, Aug 15

STL

Lambert-St. Louis Intl.

SEA

Seattle - Tacoma Intl.

$358 Roundtrip, found 1 day ago

$358

Roundtrip

found 1 day ago

Select Frontier Airlines flight, departing Wed, Aug 6 from Lambert-St. Louis Intl. to Seattle - Tacoma Intl., returning Fri, Aug 15, priced at $358 found 1 day ago

Mon, Sep 15 - Tue, Sep 23

STL

Lambert-St. Louis Intl.

BLI

Bellingham Intl.

$359 Roundtrip, found 16 hours ago

$359

Roundtrip

found 16 hours ago

Select Hawaiian Airlines flight, departing Mon, Sep 15 from Lambert-St. Louis Intl. to Bellingham Intl., returning Tue, Sep 23, priced at $359 found 16 hours ago

Tue, Sep 16 - Thu, Sep 18

STL

Lambert-St. Louis Intl.

BLI

Bellingham Intl.

$368 Roundtrip, found 16 hours ago

$368

Roundtrip

found 16 hours ago

Select Alaska Airlines flight, departing Tue, Sep 16 from Lambert-St. Louis Intl. to Bellingham Intl., returning Thu, Sep 18, priced at $368 found 16 hours ago

Thu, Sep 18 - Thu, Sep 25

STL

Lambert-St. Louis Intl.

BLI

Bellingham Intl.

$369 Roundtrip, found 16 hours ago

$369

Roundtrip

found 16 hours ago

Select Hawaiian Airlines flight, departing Thu, Sep 18 from Lambert-St. Louis Intl. to Bellingham Intl., returning Thu, Sep 25, priced at $369 found 16 hours ago

Tue, Aug 12 - Sun, Aug 17

STL

Lambert-St. Louis Intl.

SEA

Seattle - Tacoma Intl.

$467 Roundtrip, found 1 day ago

$467

Roundtrip

found 1 day ago

Select Hawaiian Airlines flight, departing Tue, Aug 12 from Lambert-St. Louis Intl. to Seattle - Tacoma Intl., returning Sun, Aug 17, priced at $467 found 1 day ago

Tue, Aug 12 - Sat, Aug 16

STL

Lambert-St. Louis Intl.

SEA

Seattle - Tacoma Intl.

$473 Roundtrip, found 1 day ago

$473

Roundtrip

found 1 day ago

Select United flight, departing Tue, Aug 12 from Lambert-St. Louis Intl. to Seattle - Tacoma Intl., returning Sat, Aug 16, priced at $473 found 1 day ago

Sat, Aug 9 - Sat, Aug 16

STL

Lambert-St. Louis Intl.

SEA

Seattle - Tacoma Intl.

$528 Roundtrip, found 1 day ago

$528

Roundtrip

found 1 day ago

Select American Airlines flight, departing Sat, Aug 9 from Lambert-St. Louis Intl. to Seattle - Tacoma Intl., returning Sat, Aug 16, priced at $528 found 1 day ago