Cheap flights from Boston to Florida Keys

View AU$91 flight on Wed, 1 Oct. 2025Opens in a new window

Popular airlines from Boston to Florida Keys

  • Jetstar

    Jetstar

  • Qantas Airways

    Qantas Airways

  • Virgin Australia

    Virgin Australia

  • Scoot

    Scoot

  • American Airlines

    American Airlines

  • Emirates

    Emirates

  • United

    United

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Cheap Flights from Boston (BOS) to Florida Keys (MIA)

Prices were available within the past 7 days for one-way flights and round trip tickets for the period specified. Prices and availability are subject to change. Additional terms apply.

American Airlines
Thu, 4 Sep. - Thu, 11 Sep.
BOS
Boston
MIA
Miami
AU$225 Return, found 4 days ago
AU$225
Return
found 4 days ago
Select American Airlines flight, departing Thu, 4 Sep. from Boston to Miami, returning Thu, 11 Sep., priced at AU$225 found 4 days ago
Delta
Thu, 4 Sep. - Thu, 11 Sep.
BOS
Boston
MIA
Miami
AU$225 Return, found 4 days ago
AU$225
Return
found 4 days ago
Select Delta flight, departing Thu, 4 Sep. from Boston to Miami, returning Thu, 11 Sep., priced at AU$225 found 4 days ago
American Airlines
Fri, 29 Aug. - Fri, 5 Sep.
BOS
Boston
MIA
Miami
AU$243 Return, found 4 days ago
AU$243
Return
found 4 days ago
Select American Airlines flight, departing Fri, 29 Aug. from Boston to Miami, returning Fri, 5 Sep., priced at AU$243 found 4 days ago
Delta
Fri, 29 Aug. - Fri, 5 Sep.
BOS
Boston
MIA
Miami
AU$257 Return, found 4 days ago
AU$257
Return
found 4 days ago
Select Delta flight, departing Fri, 29 Aug. from Boston to Miami, returning Fri, 5 Sep., priced at AU$257 found 4 days ago
United
Thu, 4 Sep. - Thu, 11 Sep.
BOS
Boston
MIA
Miami
AU$407 Return, found 4 days ago
AU$407
Return
found 4 days ago
Select United flight, departing Thu, 4 Sep. from Boston to Miami, returning Thu, 11 Sep., priced at AU$407 found 4 days ago
Cape Air
Sun, 31 Aug. - Sun, 7 Sep.
EWB
New Bedford
MIA
Miami
AU$1,028 Return, found 2 days ago
AU$1,028
Return
found 2 days ago
Select Cape Air flight, departing Sun, 31 Aug. from New Bedford to Miami, returning Sun, 7 Sep., priced at AU$1,028 found 2 days ago

Find the cheapest month to fly from Boston (BOS) to Key West (EYW)

October is typically the cheapest month to fly

From AU$286 - AU$578 per traveller.

Graph displaying average flight prices per month

*Available to Expedia members.