Boston To Key West Flights

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November
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December
$258
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December is by far the best month, wherein you can get cheapest flights for Boston to Key West. Meanwhile, December is perceived as the expensive month due to the varying factors. That’s why it’s highly advised to make advanced online flight booking to save huge amounts of money.

disclDisclaimer - All the mentioned fares were found within last 48 hrs. The displayed fares are based on historical data and are subject to change. The fares cannot be guaranteed at the time of booking.

Things to know
arrow One Way Fare

December

December- During this month the footfall is less so, the flight is gradually inexpensive.

round Round Way Fare

December

December - is the cheapest month to book round trip flights.

Best Flight From Boston To Key West

American AirlinesAmerican Airlines
Boston
09:26
24 Dec 2026
08h 04m
1 Stop
Key West
17:30
24 Dec 2026
$246
American AirlinesAmerican Airlines
Boston
09:28
24 Dec 2026
08h 09m
1 Stop
Key West
17:37
24 Dec 2026
$263
American AirlinesAmerican Airlines
Boston
06:00
24 Dec 2026
07h 58m
1 Stop
Key West
13:58
24 Dec 2026
$271
Delta AirlinesDelta Airlines
Boston
13:55
24 Dec 2026
05h 48m
1 Stop
Key West
19:43
24 Dec 2026
$299
Delta AirlinesDelta Airlines
Boston
12:45
24 Dec 2026
06h 58m
1 Stop
Key West
19:43
24 Dec 2026
$299
Delta AirlinesDelta Airlines
Boston
09:05
24 Dec 2026
08h 18m
1 Stop
Key West
17:23
24 Dec 2026
$359
JetBlue AirwaysJetBlue Airways
Boston
08:25
24 Dec 2026
03h 56m
Non Stop
Key West
12:21
24 Dec 2026
$363
JetBlue AirwaysJetBlue Airways
Boston
08:25
24 Dec 2026
03h 58m
Non Stop
Key West
12:23
24 Dec 2026
$622
United AirlinesUnited Airlines
Boston
07:15
24 Dec 2026
08h 43m
1 Stop
Key West
15:58
24 Dec 2026
$804
United AirlinesUnited Airlines
Boston
05:45
24 Dec 2026
06h 22m
1 Stop
Key West
12:07
24 Dec 2026
$928
United AirlinesUnited Airlines
Boston
05:45
24 Dec 2026
09h 38m
1 Stop
Key West
15:23
24 Dec 2026
$978

Early Morning Flight Boston to Key West

cheap flight

Cheapest Flight Found

$928
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Cheapest Month To Fly

24 Dec 2026
05:45 AM
flight

Airlines

United Airlines
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Average Flight Time

06h 22m

Late Night Flight Boston to Key West

cheap flight

Cheapest Flight Found

$299
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Cheapest Month To Fly

24 Dec 2026
12:45 AM
flight

Airlines

Delta Airlines
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Average Flight Time

06h 58m

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