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Duck Key

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Duck Key Flights as Low as $56

Prices found within past 7 days. Prices and availability subject to change. Additional terms may apply.

Frontier Airlines
Wed, Mar 25 - Sat, Mar 28
ATL
Hartsfield-Jackson Atlanta Intl.
MIA
Miami Intl.
$56 Roundtrip, found 4 hours ago
$56
Roundtrip
found 4 hours ago
Select Frontier Airlines flight, departing Wed, Mar 25 from Hartsfield-Jackson Atlanta Intl. to Miami Intl., returning Sat, Mar 28, priced at $56 found 4 hours ago
Frontier Airlines
Wed, Mar 25 - Sat, Mar 28
ATL
Hartsfield-Jackson Atlanta Intl.
MIA
Miami Intl.
$58 Roundtrip, found 4 hours ago
$58
Roundtrip
found 4 hours ago
Select Frontier Airlines flight, departing Wed, Mar 25 from Hartsfield-Jackson Atlanta Intl. to Miami Intl., returning Sat, Mar 28, priced at $58 found 4 hours ago
Spirit Airlines
Wed, Mar 25 - Sat, Mar 28
ATL
Hartsfield-Jackson Atlanta Intl.
MIA
Miami Intl.
$60 Roundtrip, found 4 hours ago
$60
Roundtrip
found 4 hours ago
Select Spirit Airlines flight, departing Wed, Mar 25 from Hartsfield-Jackson Atlanta Intl. to Miami Intl., returning Sat, Mar 28, priced at $60 found 4 hours ago
Frontier Airlines
Fri, May 15 - Tue, May 19
ATL
Hartsfield-Jackson Atlanta Intl.
MIA
Miami Intl.
$65 Roundtrip, found 6 days ago
$65
Roundtrip
found 6 days ago
Select Frontier Airlines flight, departing Fri, May 15 from Hartsfield-Jackson Atlanta Intl. to Miami Intl., returning Tue, May 19, priced at $65 found 6 days ago
Frontier Airlines
Sat, Apr 11 - Sat, Apr 18
ATL
Hartsfield-Jackson Atlanta Intl.
MIA
Miami Intl.
$66 Roundtrip, found 16 hours ago
$66
Roundtrip
found 16 hours ago
Select Frontier Airlines flight, departing Sat, Apr 11 from Hartsfield-Jackson Atlanta Intl. to Miami Intl., returning Sat, Apr 18, priced at $66 found 16 hours ago
American Airlines
Tue, Mar 24 - Tue, Apr 7
AUS
Austin-Bergstrom Intl.
MIA
Miami Intl.
$91 Roundtrip, found 3 hours ago
$91
Roundtrip
found 3 hours ago
Select American Airlines flight, departing Tue, Mar 24 from Austin-Bergstrom Intl. to Miami Intl., returning Tue, Apr 7, priced at $91 found 3 hours ago
Delta
Wed, Apr 1 - Tue, Apr 14
ATL
Hartsfield-Jackson Atlanta Intl.
MIA
Miami Intl.
$117 Roundtrip, found 5 hours ago
$117
Roundtrip
found 5 hours ago
Select Delta flight, departing Wed, Apr 1 from Hartsfield-Jackson Atlanta Intl. to Miami Intl., returning Tue, Apr 14, priced at $117 found 5 hours ago
United
Tue, Mar 24 - Tue, Apr 7
AUS
Austin-Bergstrom Intl.
MIA
Miami Intl.
$172 Roundtrip, found 3 hours ago
$172
Roundtrip
found 3 hours ago
Select United flight, departing Tue, Mar 24 from Austin-Bergstrom Intl. to Miami Intl., returning Tue, Apr 7, priced at $172 found 3 hours ago
American Airlines
Wed, Aug 26 - Sat, Aug 29
AUS
Austin-Bergstrom Intl.
EYW
Key West Intl.
$191 Roundtrip, found 5 hours ago
$191
Roundtrip
found 5 hours ago
Select American Airlines flight, departing Wed, Aug 26 from Austin-Bergstrom Intl. to Key West Intl., returning Sat, Aug 29, priced at $191 found 5 hours ago
Spirit Airlines
Mon, Mar 30 - Wed, Apr 8
ATL
Hartsfield-Jackson Atlanta Intl.
EYW
Key West Intl.
$203 Roundtrip, found 1 hour ago
$203
Roundtrip
found 1 hour ago
Select Spirit Airlines flight, departing Mon, Mar 30 from Hartsfield-Jackson Atlanta Intl. to Key West Intl., returning Wed, Apr 8, priced at $203 found 1 hour ago
JetBlue Airways
Wed, Apr 29 - Sat, May 9
ATL
Hartsfield-Jackson Atlanta Intl.
EKW
Miami Central Brightline Train Station
$205 Roundtrip, found 4 days ago
$205
Roundtrip
found 4 days ago
Select JetBlue Airways flight, departing Wed, Apr 29 from Hartsfield-Jackson Atlanta Intl. to Miami Central Brightline Train Station, returning Sat, May 9, priced at $205 found 4 days ago
JetBlue Airways
Wed, May 6 - Sat, May 9
ATL
Hartsfield-Jackson Atlanta Intl.
AVT
Aventura Brightline Train Station
$226 Roundtrip, found 1 day ago
$226
Roundtrip
found 1 day ago
Select JetBlue Airways flight, departing Wed, May 6 from Hartsfield-Jackson Atlanta Intl. to Aventura Brightline Train Station, returning Sat, May 9, priced at $226 found 1 day ago
American Airlines
Mon, May 11 - Thu, May 28
AGS
Augusta Regional
EYW
Key West Intl.
$299 Roundtrip, found 2 hours ago
$299
Roundtrip
found 2 hours ago
Select American Airlines flight, departing Mon, May 11 from Augusta Regional to Key West Intl., returning Thu, May 28, priced at $299 found 2 hours ago
JetBlue Airways
Mon, Apr 27 - Mon, May 11
AUS
Austin-Bergstrom Intl.
AVT
Aventura Brightline Train Station
$300 Roundtrip, found 5 days ago
$300
Roundtrip
found 5 days ago
Select JetBlue Airways flight, departing Mon, Apr 27 from Austin-Bergstrom Intl. to Aventura Brightline Train Station, returning Mon, May 11, priced at $300 found 5 days ago
JetBlue Airways
Mon, Apr 27 - Mon, May 11
AUS
Austin-Bergstrom Intl.
EKW
Miami Central Brightline Train Station
$300 Roundtrip, found 5 days ago
$300
Roundtrip
found 5 days ago
Select JetBlue Airways flight, departing Mon, Apr 27 from Austin-Bergstrom Intl. to Miami Central Brightline Train Station, returning Mon, May 11, priced at $300 found 5 days ago
Alaska Airlines
Mon, Apr 27 - Mon, May 11
AUS
Austin-Bergstrom Intl.
MIA
Miami Intl.
$375 Roundtrip, found 3 hours ago
$375
Roundtrip
found 3 hours ago
Select Alaska Airlines flight, departing Mon, Apr 27 from Austin-Bergstrom Intl. to Miami Intl., returning Mon, May 11, priced at $375 found 3 hours ago

Cheap Flights to Duck Key

Fall in love at first flight with your vacation to Duck Key by saving a ton of cash on your last-minute cheap flight. There’s no more scouring the internet for a good deal—book your flight to Duck Key on Hotwire, and you’ll be up, up, and on a getaway in no time.

Because once the wheels are down in Duck Key, the good times start rolling. So buckle up, you’re in for a fun ride.

Frequently Asked Questions About flights to Duck Key

Don’t waste your time on endless searches for cheap airline tickets oneway or roundtrip. We’ll have you on your way to Duck Key with a tiny bag of pretzels in your hand before you can say “tray tables in the upright position”—and for a ticket price that works for your vacay budget.

So all you have to worry about is where you’re headed after the MIA airport.

What is the cheapest month to fly to Duck Key?

Airline ticket prices fluctuate all the time, depending on the day of the week or the month of the year. The cheapest round trip flights to Duck Key are in March, but when you book your flight on Hotwire, savings are always in season.

How many airlines fly to Duck Key?

Variety is the spice of life, even when it comes to booking your next trip. Want options for airlines? You’ll find 16 to choose from for your flight to Duck Key.

What airport is best to fly into Duck Key?

When you’re planning your trip to Duck Key, convenience is the name of the game. Luckily, Duck Key Florida Keys Marathon Airport is nearby so you can deplane and get going on checking off everything on your Duck Key must-do list.

How much are flights to Duck Key?

Got very cheap flights on your vacation itinerary? When you book your airline tickets to Duck Key on Hotwire, you may just get what’s on your getaway wish list. With tickets as low as $56, you’ll have leftover cash for at least a magazine and a bottle of water at the airport book store.

How to get cheap flights to Duck Key?

The trick to saving a stack of cash on your flight to Duck Key? Snatch up that Hotwire flight deal when you see a killer rate because it could be gone in a flash. And with flights as low as $56 right now, why wait?

Duck Key Flight Information
Destination airport
Miami Intl.
Destination airport IATA code
MIA
Roundtrip price
$56

Last Minute Hotel Deals in Duck Key

Hawks Cay Resort

Hawks Cay Resort

4 out of 5
61 Hawks Cay Blvd Marathon FL
Book a stay at this luxury hotel in Marathon. Enjoy free WiFi, 5 outdoor pools, and a full-service spa. Our guests praise the pool and the helpful staff in our ...
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Hawks Cay Resort
Villas At Hawks Cay Resort

Villas At Hawks Cay Resort

4 out of 5
61 Hawks Cay Boulevard Marathon FL
Book a stay at this luxury resort in Marathon. Enjoy free WiFi, 5 outdoor pools, and a full-service spa. Popular attractions Little Conch Key and Walkers Island ...
8.4/10 Very Good! (170 reviews)
The staff were all great and very responsive. Staying over by the adult only pool vs the main pool with all the kids is like being at 2 different resorts. We really enjoyed our dinner at the Salt and Ash

Reviewed on Mar 1, 2026

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Villas At Hawks Cay Resort
Village at Hawks Cay Villas by KeysCaribbean

Village at Hawks Cay Villas by KeysCaribbean

3 out of 5
300 Duck Key Drive Marathon FL
Stay at this hotel in Marathon. Enjoy free WiFi, free parking, and 2 restaurants. Our guests praise the property condition in our reviews. Popular attractions ...
7.4/10 Good! (178 reviews)
Nice Neighborhood. Very well kept and clean.

Reviewed on Feb 23, 2026

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Village at Hawks Cay Villas by KeysCaribbean
Isla Bella Beach Resort & Spa

Isla Bella Beach Resort & Spa

5 out of 5
1 Knights Key Boulevard Marathon FL
Book a stay at this luxury hotel in Marathon. Enjoy free WiFi, 5 outdoor pools, and a full-service spa. Our guests praise the pool and the helpful staff in our ...
9.2/10 Wonderful! (1,096 reviews)
Front desk staff and wait staff were great! We stayed on our way to key west and on the way back we decided to stay again. In fact as we were getting ready to leave, we couldn’t think of a reason not to stay just one more night. So we ended up staying there three nights of our five night trip. The ...

Reviewed on Feb 27, 2026

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Isla Bella Beach Resort & Spa
Lime Tree Bay Resort

Lime Tree Bay Resort

3.5 out of 5
68500 Overseas Hwy Long Key FL
Book a stay at this beach resort in Long Key. Enjoy free WiFi, free parking, and 3 outdoor pools. Our guests praise the pool and the helpful staff in our reviews. ...
9.2/10 Wonderful! (1,181 reviews)
We loved the view from our room. Pool area was great ! It was so convenient to have the tiki bar/ restaurant so close to the property.Food was excellent ! Staff was great !

Reviewed on Mar 2, 2026

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Lime Tree Bay Resort
Kingsail Resort

Kingsail Resort

2 out of 5
7050 Overseas Highway Marathon FL
Stay at this motel in Marathon. Enjoy free WiFi, free parking, and a marina. Our guests praise the helpful staff and the clean rooms in our reviews. Popular ...
8.6/10 Excellent! (1,028 reviews)
Nice room and location

Reviewed on Mar 2, 2026

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Kingsail Resort
Amara Cay Resort

Amara Cay Resort

4 out of 5
80001 Overseas Hwy Islamorada FL
Book a stay at this beach resort in Islamorada. Enjoy 2 restaurants, a private beach, and 3 bars/lounges. Our guests praise the pool and the helpful staff in ...
8.8/10 Excellent! (1,259 reviews)
We enjoy the amenities but the rooms air-conditioned is not working, we call the front desk twice to get it fix.

Reviewed on Mar 2, 2026

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Amara Cay Resort
Courtyard by Marriott Faro Blanco Resort, Marathon Florida Keys

Courtyard by Marriott Faro Blanco Resort, Marathon Florida Keys

3 out of 5
2146 Overseas Hwy Marathon FL
Book a stay at this beach hotel in Marathon. Enjoy free WiFi, 2 outdoor pools, and a beach locale. Our guests praise the pool and the helpful staff in our reviews. ...
9/10 Wonderful! (1,007 reviews)
Chair in front the desk look like someone went to the bathroom in it and was NEVER cleaned during our week long stay. Plus 20.00 a day to park and 35.00 a day resort fee was nothing but a joke. We won't be back.

Reviewed on Feb 28, 2026

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Courtyard by Marriott Faro Blanco Resort, Marathon Florida Keys
See all 2,420 properties in Duck Key
Lowest nightly price found within the past 24 hours based on a 1 night stay for 2 adults. Prices and availability subject to change. Additional terms may apply.