Cheap flights from Boston to Florida Keys

View AU$91 flight on Tue, 21 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$226 Return, found 3 hours ago
AU$226
Return
found 3 hours ago
Select American Airlines flight, departing Thu, 4 Sep. from Boston to Miami, returning Thu, 11 Sep., priced at AU$226 found 3 hours ago
American Airlines
Fri, 22 Aug. - Fri, 29 Aug.
PVD
Providence
MIA
Miami
AU$243 Return, found 2 days ago
AU$243
Return
found 2 days ago
Select American Airlines flight, departing Fri, 22 Aug. from Providence to Miami, returning Fri, 29 Aug., priced at AU$243 found 2 days ago
American Airlines
Wed, 13 Aug. - Thu, 14 Aug.
BOS
Boston
MIA
Miami
AU$243 Return, found 6 days ago
AU$243
Return
found 6 days ago
Select American Airlines flight, departing Wed, 13 Aug. from Boston to Miami, returning Thu, 14 Aug., priced at AU$243 found 6 days ago
American Airlines
Thu, 4 Sep. - Thu, 11 Sep.
BOS
Boston
MIA
Miami
AU$265 Return, found 3 hours ago
AU$265
Return
found 3 hours ago
Select American Airlines flight, departing Thu, 4 Sep. from Boston to Miami, returning Thu, 11 Sep., priced at AU$265 found 3 hours ago
American Airlines
Sun, 17 Aug. - Sat, 30 Aug.
BOS
Boston
MIA
Miami
AU$273 Return, found 9 hours ago
AU$273
Return
found 9 hours ago
Select American Airlines flight, departing Sun, 17 Aug. from Boston to Miami, returning Sat, 30 Aug., priced at AU$273 found 9 hours ago
Delta
Thu, 14 Aug. - Sat, 16 Aug.
BOS
Boston
MIA
Miami
AU$279 Return, found 2 days ago
AU$279
Return
found 2 days ago
Select Delta flight, departing Thu, 14 Aug. from Boston to Miami, returning Sat, 16 Aug., priced at AU$279 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$285 - AU$586 per traveller.

Graph displaying average flight prices per month

*Available to Expedia members.