American Airlines Cheap Flights from Boston to Key West

View €137 flight on Thu, 24 Jul 2025Opens in a new window

  • Plan, book, fly with confidence

  • trending down icon

    Be in the know

    Get alerts if flight prices drop or rise*
  • bex rewards loyalty icon

    Book smarter

    Save up to 15% on select hotels after you book a flight*
  • payments icon

    Earn twice

    Earn your airline miles on top of our rewards
    Sign in

Prices were available within the past 7 days and start at €137 for one-way flights and €274 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

American Airlines
Thu, 24 Jul - Wed, 30 Jul
BOS
Boston
EYW
Key West
€274 Return, found 8 hours ago
€274
Return
found 8 hours ago
Select American Airlines flight, departing Thu, 24 Jul from Boston to Key West, returning Wed, 30 Jul, priced at €274 found 8 hours ago
American Airlines
Thu, 24 Jul - Wed, 30 Jul
BOS
Boston
EYW
Key West
€299 Return, found 8 hours ago
€299
Return
found 8 hours ago
Select American Airlines flight, departing Thu, 24 Jul from Boston to Key West, returning Wed, 30 Jul, priced at €299 found 8 hours ago
American Airlines
Thu, 24 Jul - Wed, 30 Jul
BOS
Boston
EYW
Key West
€314 Return, found 8 hours ago
€314
Return
found 8 hours ago
Select American Airlines flight, departing Thu, 24 Jul from Boston to Key West, returning Wed, 30 Jul, priced at €314 found 8 hours ago
American Airlines
Thu, 24 Jul - Wed, 30 Jul
BOS
Boston
EYW
Key West
€344 Return, found 8 hours ago
€344
Return
found 8 hours ago
Select American Airlines flight, departing Thu, 24 Jul from Boston to Key West, returning Wed, 30 Jul, priced at €344 found 8 hours ago
American Airlines
Thu, 24 Jul - Wed, 30 Jul
BOS
Boston
EYW
Key West
€395 Return, found 8 hours ago
€395
Return
found 8 hours ago
Select American Airlines flight, departing Thu, 24 Jul from Boston to Key West, returning Wed, 30 Jul, priced at €395 found 8 hours ago
American Airlines
Thu, 24 Jul - Wed, 30 Jul
BOS
Boston
EYW
Key West
€454 Return, found 8 hours ago
€454
Return
found 8 hours ago
Select American Airlines flight, departing Thu, 24 Jul from Boston to Key West, returning Wed, 30 Jul, priced at €454 found 8 hours ago
American Airlines
Thu, 24 Jul - Wed, 30 Jul
BOS
Boston
EYW
Key West
€481 Return, found 8 hours ago
€481
Return
found 8 hours ago
Select American Airlines flight, departing Thu, 24 Jul from Boston to Key West, returning Wed, 30 Jul, priced at €481 found 8 hours ago
American Airlines
Thu, 24 Jul - Wed, 30 Jul
BOS
Boston
EYW
Key West
€541 Return, found 8 hours ago
€541
Return
found 8 hours ago
Select American Airlines flight, departing Thu, 24 Jul from Boston to Key West, returning Wed, 30 Jul, priced at €541 found 8 hours ago
Boston to Key West route information
Origin airport
Logan Intl.
Destination airport
Key West Intl.
Distance
2199 km
*Available to Expedia members.