Flights to Key West from St. Louis - $153~

Cheap Flights from St. Louis to Key West (STL-EYW)

Prices were available within the past 7 days and start at $153 for one-way flights and $233 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Sat, Sep 7 - Wed, Sep 11

STL

St. Louis

EYW

Key West

$233 Roundtrip, found 5 days ago

$233

Roundtrip

found 5 days ago

Select United flight, departing Sat, Sep 7 from St. Louis to Key West, returning Wed, Sep 11, priced at $233 found 5 days ago

Sat, Nov 16 - Sat, Nov 23

STL

St. Louis

EYW

Key West

$238 Roundtrip, found 5 days ago

$238

Roundtrip

found 5 days ago

Select United flight, departing Sat, Nov 16 from St. Louis to Key West, returning Sat, Nov 23, priced at $238 found 5 days ago

Mon, Nov 18 - Sun, Nov 24

STL

St. Louis

EYW

Key West

$269 Roundtrip, found 4 days ago

$269

Roundtrip

found 4 days ago

Select United flight, departing Mon, Nov 18 from St. Louis to Key West, returning Sun, Nov 24, priced at $269 found 4 days ago

Tue, Mar 4 - Thu, Mar 13

STL

St. Louis

EYW

Key West

$301 Roundtrip, found 3 days ago

$301

Roundtrip

found 3 days ago

Select United flight, departing Tue, Mar 4 from St. Louis to Key West, returning Thu, Mar 13, priced at $301 found 3 days ago

Sun, Sep 22 - Sat, Sep 28

STL

St. Louis

EYW

Key West

$309 Roundtrip, found 13 hours ago

$309

Roundtrip

found 13 hours ago

Select United flight, departing Sun, Sep 22 from St. Louis to Key West, returning Sat, Sep 28, priced at $309 found 13 hours ago

Sat, Sep 7 - Sat, Sep 14

STL

St. Louis

EYW

Key West

$309 Roundtrip, found 6 days ago

$309

Roundtrip

found 6 days ago

Select United flight, departing Sat, Sep 7 from St. Louis to Key West, returning Sat, Sep 14, priced at $309 found 6 days ago