- Be in the knowGet alerts if flight prices drop or rise*
- Book smarterSave up to 40% on select hotels after you book a flight*
Plan, book, fly with confidence
Cheap Flights from St. Louis to Key West (STL-EYW)
Prices were available within the past 7 days and start at for one-way flights and ¥67,100 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.
Wed, Jul 3 - Mon, Jul 8
STL
St. Louis
EYW
Key West
¥67,100 Roundtrip, found 2 days ago
¥67,100
Roundtrip
found 2 days ago
Wed, Jul 3 - Mon, Jul 8
STL
St. Louis
EYW
Key West
¥75,600 Roundtrip, found 2 days ago
¥75,600
Roundtrip
found 2 days ago
Wed, Jul 3 - Mon, Jul 8
STL
St. Louis
EYW
Key West
¥78,640 Roundtrip, found 2 days ago
¥78,640
Roundtrip
found 2 days ago
Wed, Jul 3 - Mon, Jul 8
STL
St. Louis
EYW
Key West
¥86,780 Roundtrip, found 2 days ago
¥86,780
Roundtrip
found 2 days ago
Wed, Jul 3 - Mon, Jul 8
STL
St. Louis
EYW
Key West
¥87,570 Roundtrip, found 2 days ago
¥87,570
Roundtrip
found 2 days ago
Wed, Jul 3 - Mon, Jul 8
STL
St. Louis
EYW
Key West
¥88,930 Roundtrip, found 2 days ago
¥88,930
Roundtrip
found 2 days ago
Wed, Jul 3 - Mon, Jul 8
STL
St. Louis
EYW
Key West
¥90,680 Roundtrip, found 2 days ago
¥90,680
Roundtrip
found 2 days ago
Wed, Jul 3 - Mon, Jul 8
STL
St. Louis
EYW
Key West
¥91,400 Roundtrip, found 2 days ago
¥91,400
Roundtrip
found 2 days ago
Wed, Jul 3 - Mon, Jul 8
STL
St. Louis
EYW
Key West
¥92,190 Roundtrip, found 2 days ago
¥92,190
Roundtrip
found 2 days ago
Wed, Jul 3 - Mon, Jul 8
STL
St. Louis
EYW
Key West
¥94,620 Roundtrip, found 2 days ago
¥94,620
Roundtrip
found 2 days ago
Wed, Jul 3 - Mon, Jul 8
STL
St. Louis
EYW
Key West
¥100,210 Roundtrip, found 2 days ago
¥100,210
Roundtrip
found 2 days ago
Wed, Jul 3 - Mon, Jul 8
STL
St. Louis
EYW
Key West
¥103,120 Roundtrip, found 2 days ago
¥103,120
Roundtrip
found 2 days ago
Nearby Cities
Expedia's Latest Trends
Flights
Cars
General
Visit Shell IslandVisit Lake Bradford -Cascade LakeVisit Jose's HideawayVisit Hollywood BeachVisit Downtown OrlandoVisit Clearwater BeachVisit St. Pete BeachVisit Downtown TampaVisit Jacksonville BeachVisit Miami BeachVisit Little HavanaVisit BrickellVisit Lower Grand LagoonVisit South BeachVisit Dinkins BayouVisit Downtown MiamiVisit Greater Palm River Point CDCVisit ClearwaterVisit Downtown JacksonvilleVisit Ybor CityVisit St. PetersburgVisit Central Fort LauderdaleVisit Birch Park Finger Streets
*Available to Expedia members.