Cheap flights from Jacksonville to Florida Keys from CA $228

View CA $228 flight on Sun, Aug. 31, 2025Opens in a new window

Popular airlines from Jacksonville to Florida Keys

  • American Airlines

    American Airlines

  • Delta

    Delta

  • United

    United

  • Breeze Airways

    Breeze Airways

  • JetBlue Airways

    JetBlue Airways

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Cheap flights from Jacksonville (JAX) to Florida Keys (MIA)

Prices were available within the past 7 days and start at CA $228 for one-way flights and CA $331 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Delta
Tue, Sep. 16 - Tue, Sep. 30
JAX
Jacksonville
MIA
Miami
CA $331 Roundtrip, found 5 days ago
CA $331
Roundtrip
found 5 days ago
Select Delta flight, departing Tue, Sep. 16 from Jacksonville to Miami, returning Tue, Sep. 30, priced at CA $331 found 5 days ago
Delta
Tue, Sep. 16 - Sat, Sep. 27
JAX
Jacksonville
MIA
Miami
CA $338 Roundtrip, found 5 days ago
CA $338
Roundtrip
found 5 days ago
Select Delta flight, departing Tue, Sep. 16 from Jacksonville to Miami, returning Sat, Sep. 27, priced at CA $338 found 5 days ago
Delta
Mon, Sep. 8 - Wed, Sep. 24
JAX
Jacksonville
MIA
Miami
CA $365 Roundtrip, found 5 days ago
CA $365
Roundtrip
found 5 days ago
Select Delta flight, departing Mon, Sep. 8 from Jacksonville to Miami, returning Wed, Sep. 24, priced at CA $365 found 5 days ago
JetBlue Airways
Mon, Aug. 18 - Tue, Sep. 2
JAX
Jacksonville
MIA
Miami
CA $406 Roundtrip, found 5 days ago
CA $406
Roundtrip
found 5 days ago
Select JetBlue Airways flight, departing Mon, Aug. 18 from Jacksonville to Miami, returning Tue, Sep. 2, priced at CA $406 found 5 days ago
American Airlines
Tue, Jan. 20 - Mon, Jan. 26
DAB
Daytona Beach
MIA
Miami
CA $483 Roundtrip, found 1 hour ago
CA $483
Roundtrip
found 1 hour ago
Select American Airlines flight, departing Tue, Jan. 20 from Daytona Beach to Miami, returning Mon, Jan. 26, priced at CA $483 found 1 hour ago
United
Sat, Sep. 27 - Tue, Oct. 14
JAX
Jacksonville
MIA
Miami
CA $549 Roundtrip, found 5 days ago
CA $549
Roundtrip
found 5 days ago
Select United flight, departing Sat, Sep. 27 from Jacksonville to Miami, returning Tue, Oct. 14, priced at CA $549 found 5 days ago

Find the cheapest month to fly from Jacksonville (JAX) to Key West (EYW)

September is typically the cheapest month to fly

From CA $345 - CA $652 per traveller.

Graph displaying average flight prices per month

*Available to Expedia members.