Important: This destination may have COVID-19 travel restrictions in place, including specific restrictions for lodging. Check any national, local, and health advisories for this destination before you book.

Flights to Key Largo, FL from $20

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How much is the cheapest flight to Key Largo?

Prices were available within the past 7 days and starts at $20 for one-way flights and $50 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Frontier Airlines
Tue, Aug 17
PHL
Philadelphia Intl.
MIA
Miami Intl.
$20
Frontier Airlines
Frontier Airlines
Mon, Oct 4
ORD
O'Hare Intl.
MIA
Miami Intl.
$28
Frontier Airlines
Frontier Airlines
Mon, Oct 11
LGA
LaGuardia
MIA
Miami Intl.
$41
Frontier Airlines
Frontier Airlines
Mon, Oct 11
EWR
Liberty Intl.
MIA
Miami Intl.
$41
Frontier Airlines
Delta
Wed, Aug 25
JFK
John F. Kennedy Intl.
MIA
Miami Intl.
$49
Delta
Frontier Airlines
Tue, Aug 17 - Fri, Aug 20
PHL
Philadelphia Intl.
MIA
Miami Intl.
$50
Frontier Airlines
Frontier Airlines
Tue, Aug 17 - Fri, Aug 20
ORD
O'Hare Intl.
MIA
Miami Intl.
$55
Frontier Airlines
Frontier Airlines
Mon, Oct 11 - Wed, Oct 20
EWR
Liberty Intl.
MIA
Miami Intl.
$88
Frontier Airlines
Frontier Airlines
Mon, Oct 4 - Fri, Oct 8
LGA
LaGuardia
MIA
Miami Intl.
$89
Frontier Airlines
JetBlue Airways
Sat, Oct 16 - Sat, Oct 16
JFK
John F. Kennedy Intl.
MIA
Miami Intl.
$92
JetBlue Airways

Trending flights to Key Largo

Prices were available within the past 7 days and starts at $20 for one-way flights and $50 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Frontier Airlines
Tue, Aug 17
PHL
Philadelphia Intl.
MIA
Miami Intl.
$20
Frontier Airlines
Frontier Airlines
Tue, Aug 17 - Fri, Aug 20
PHL
Philadelphia Intl.
MIA
Miami Intl.
$50
Frontier Airlines