American Airlines Cheap Flights from Seattle to Key West

View €240 flight on Thu, 21 Aug 2025Opens in a new window

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Prices were available within the past 7 days and start at €240 for one-way flights and €266 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

American Airlines
Thu, 21 Aug - Wed, 27 Aug
SEA
Seattle
EYW
Key West
€266 Return, found 2 days ago
€266
Return
found 2 days ago
Select American Airlines flight, departing Thu, 21 Aug from Seattle to Key West, returning Wed, 27 Aug, priced at €266 found 2 days ago
American Airlines
Thu, 21 Aug - Wed, 27 Aug
SEA
Seattle
EYW
Key West
€322 Return, found 2 days ago
€322
Return
found 2 days ago
Select American Airlines flight, departing Thu, 21 Aug from Seattle to Key West, returning Wed, 27 Aug, priced at €322 found 2 days ago
American Airlines
Thu, 21 Aug - Wed, 27 Aug
SEA
Seattle
EYW
Key West
€334 Return, found 2 days ago
€334
Return
found 2 days ago
Select American Airlines flight, departing Thu, 21 Aug from Seattle to Key West, returning Wed, 27 Aug, priced at €334 found 2 days ago
American Airlines
Thu, 21 Aug - Wed, 27 Aug
SEA
Seattle
EYW
Key West
€352 Return, found 2 days ago
€352
Return
found 2 days ago
Select American Airlines flight, departing Thu, 21 Aug from Seattle to Key West, returning Wed, 27 Aug, priced at €352 found 2 days ago
American Airlines
Thu, 21 Aug - Wed, 27 Aug
SEA
Seattle
EYW
Key West
€381 Return, found 2 days ago
€381
Return
found 2 days ago
Select American Airlines flight, departing Thu, 21 Aug from Seattle to Key West, returning Wed, 27 Aug, priced at €381 found 2 days ago
American Airlines
Thu, 21 Aug - Wed, 27 Aug
SEA
Seattle
EYW
Key West
€384 Return, found 2 days ago
€384
Return
found 2 days ago
Select American Airlines flight, departing Thu, 21 Aug from Seattle to Key West, returning Wed, 27 Aug, priced at €384 found 2 days ago
American Airlines
Thu, 21 Aug - Wed, 27 Aug
SEA
Seattle
EYW
Key West
€390 Return, found 2 days ago
€390
Return
found 2 days ago
Select American Airlines flight, departing Thu, 21 Aug from Seattle to Key West, returning Wed, 27 Aug, priced at €390 found 2 days ago
American Airlines
Thu, 21 Aug - Wed, 27 Aug
SEA
Seattle
EYW
Key West
€398 Return, found 2 days ago
€398
Return
found 2 days ago
Select American Airlines flight, departing Thu, 21 Aug from Seattle to Key West, returning Wed, 27 Aug, priced at €398 found 2 days ago
Seattle to Key West route information
Origin airport
Seattle - Tacoma Intl.
Destination airport
Key West Intl.
Distance
4347 km
*Available to Expedia members.