Cheap Flights To Key Biscayne 2026

Key Biscayne Flights as Low as $70

These prices were available within the past 7 days. Prices quoted are per person, round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Frontier Airlines
Sat, Oct 3 - Thu, Oct 22
ATL
Hartsfield-Jackson Atlanta Intl.
FLL
Fort Lauderdale - Hollywood Intl.
$70
Roundtrip
found 5 days ago
Select Frontier Airlines flight, departing Sat, Oct 3 from Hartsfield-Jackson Atlanta Intl. to Fort Lauderdale - Hollywood Intl., returning Thu, Oct 22, priced at $70 found 5 days ago
Frontier Airlines
Frontier Airlines
Thu, Oct 22 - Tue, Oct 27
ATL
Hartsfield-Jackson Atlanta Intl.
FLL
Fort Lauderdale - Hollywood Intl.
$72
Roundtrip
found 6 days ago
Select Frontier Airlines flight, departing Thu, Oct 22 from Hartsfield-Jackson Atlanta Intl. to Fort Lauderdale - Hollywood Intl., returning Tue, Oct 27, priced at $72 found 6 days ago
Frontier Airlines
Tue, Dec 1 - Tue, Dec 8
BWI
Baltimore Washington Intl. Thurgood Marshall
FLL
Fort Lauderdale - Hollywood Intl.
$84
Roundtrip
found 3 days ago
Select Frontier Airlines flight, departing Tue, Dec 1 from Baltimore Washington Intl. Thurgood Marshall to Fort Lauderdale - Hollywood Intl., returning Tue, Dec 8, priced at $84 found 3 days ago
JetBlue Airways
Tue, Oct 20 - Tue, Oct 27
ATL
Hartsfield-Jackson Atlanta Intl.
FLL
Fort Lauderdale - Hollywood Intl.
$119
Roundtrip
found 2 hours ago
Select JetBlue Airways flight, departing Tue, Oct 20 from Hartsfield-Jackson Atlanta Intl. to Fort Lauderdale - Hollywood Intl., returning Tue, Oct 27, priced at $119 found 2 hours ago
Delta
Tue, Oct 20 - Tue, Oct 27
ATL
Hartsfield-Jackson Atlanta Intl.
FLL
Fort Lauderdale - Hollywood Intl.
$119
Roundtrip
found 2 hours ago
Select Delta flight, departing Tue, Oct 20 from Hartsfield-Jackson Atlanta Intl. to Fort Lauderdale - Hollywood Intl., returning Tue, Oct 27, priced at $119 found 2 hours ago
Frontier Airlines
Southwest Airlines
Tue, Oct 20 - Tue, Oct 27
ATL
Hartsfield-Jackson Atlanta Intl.
FLL
Fort Lauderdale - Hollywood Intl.
$141
Roundtrip
found 2 hours ago
Select Southwest Airlines flight, departing Tue, Oct 20 from Hartsfield-Jackson Atlanta Intl. to Fort Lauderdale - Hollywood Intl., returning Tue, Oct 27, priced at $141 found 2 hours ago
American Airlines
United
Wed, Nov 18 - Wed, Nov 18
ATL
Hartsfield-Jackson Atlanta Intl.
MIA
Miami Intl.
$242
Roundtrip
found 2 days ago
Select United flight, departing Wed, Nov 18 from Hartsfield-Jackson Atlanta Intl. to Miami Intl., returning Wed, Nov 18, priced at $242 found 2 days ago
Copa
Tue, Sep 29 - Wed, Oct 28
MDE
José María Córdova Intl.
MIA
Miami Intl.
$406
Roundtrip
found 23 hours ago
Select Copa flight, departing Tue, Sep 29 from José María Córdova Intl. to Miami Intl., returning Wed, Oct 28, priced at $406 found 23 hours ago
Arajet
Mon, Oct 5 - Sat, Oct 24
MDE
José María Córdova Intl.
MIA
Miami Intl.
$583
Roundtrip
found 6 hours ago
Select Arajet flight, departing Mon, Oct 5 from José María Córdova Intl. to Miami Intl., returning Sat, Oct 24, priced at $583 found 6 hours ago
avianca
United
Thu, Oct 1 - Thu, Oct 22
MDE
José María Córdova Intl.
FLL
Fort Lauderdale - Hollywood Intl.
$626
Roundtrip
found 5 hours ago
Select United flight, departing Thu, Oct 1 from José María Córdova Intl. to Fort Lauderdale - Hollywood Intl., returning Thu, Oct 22, priced at $626 found 5 hours ago
LATAM Airlines Group
Aeromexico

Flight Travel Guide to Key Biscayne

No matter how much you fight the travel bug, sometimes there's only one solution—to hop on the next plane to Key Biscayne. AARP Travel Center Powered by Expedia® is here to help you cure that bug with great deals on flights and activities. With the best rates from Expedia combined with members-only discounts, AARP Travel offers members the best price in travel, guaranteed. As an AARP member, you'll pay no booking fees on flights, and often receive exclusive rates on hotels and car rentals.

If you've got a more relaxed schedule, we will have more deals to show you. In other words, you'll have a better chance of finding that affordable flight without searching dozens of other sites.

Airport Transportation

Once you've got your flight scheduled to Key Biscayne with AARP Travel, you might want to book a car so you can get around Key Biscayne. You can request a Key Biscayne rental car under our cars tab and get in the car as soon as you step out of the airport. For more information, check out the Key Biscayne Car Rentals Guide.

Things to Do in Key Biscayne

Not sure where to start? Not to worry—there's plenty to do in this city. Key Biscayne has so much to do, and we can help you get started.

If you're looking for some fun activities to do in Key Biscayne, make sure you look at our "Things to Do in Key Biscayne" page for excursions and activities for the whole crew.

Book Your Hotel in Key Biscayne

Key Biscayne has accommodation options in the area, so you will have no problems finding a place to stay close to all the things you want to see. If you need to stay close to the airport, or another attraction in Key Biscayne, check out our hotel listings page. Remember that you will get the best for your getaway when you book your stay with AARP Travel.

Booking Your Trip

Once you have decided when you want to visit, allow us here at AARP Travel to connect you with inexpensive tickets to Key Biscayne. There is no better time than now to start booking your next trip. Book one of our flights today.