Cheap flights from the United States to Florida Keys from $34

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from the United States to Florida Keys departing on 10/25. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
1 adult
0 bags

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Find the cheapest flights from the United States to Florida Keys

Recent round-trip flight deals from the United States to Florida Keys

Frontier Logo
8:49 am - 10:46 amATL-MIA
1h 57mnonstop
Frontier Logo
7:05 am - 9:17 amMIA-ATL
2h 12mnonstop
$53Frontier
Find Deal
Wed, Nov 12 - Sat, Nov 15
Frontier Logo
3:12 pm - 5:15 pmATL-MIA
2h 03mnonstop
Frontier Logo
6:59 pm - 9:18 pmMIA-ATL
2h 19mnonstop
$54Frontier
Find Deal
Wed, Oct 1 - Mon, Oct 6
Spirit Airlines Logo
2:55 pm - 6:06 pmEWR-MIA
3h 11mnonstop
Spirit Airlines Logo
3:50 pm - 7:01 pmMIA-EWR
3h 11mnonstop
$79Spirit Airlines
Find Deal
Wed, Sep 3 - Sat, Sep 6
Spirit Airlines Logo
7:55 pm - 11:05 pmLGA-MIA
3h 10mnonstop
Spirit Airlines Logo
6:42 pm - 9:43 pmMIA-LGA
3h 01mnonstop
$80Spirit Airlines
Find Deal
Sat, Aug 30 - Sat, Sep 6
American Airlines Logo
5:05 am - 7:40 amDCA-MIA
2h 35mnonstop
American Airlines Logo
9:20 pm - 11:59 pmMIA-DCA
2h 39mnonstop
$99American Airlines
Find Deal
Sat, Aug 30 - Tue, Sep 2
American Airlines Logo
5:00 am - 7:40 amDCA-MIA
2h 40mnonstop
American Airlines Logo
6:51 pm - 9:27 pmMIA-DCA
2h 36mnonstop
$100American Airlines
Find Deal
Sat, Oct 18 - Sat, Oct 25
Delta Logo
7:10 am - 10:43 amBOS-MIA
3h 33mnonstop
Delta Logo
11:38 am - 2:59 pmMIA-BOS
3h 21mnonstop
$117Delta
Find Deal
Sat, Sep 13 - Tue, Sep 16
Delta Logo
7:10 am - 10:43 amBOS-MIA
3h 33mnonstop
Delta Logo
7:38 pm - 1:18 amMIA-BOS
5h 40m1 stop
$127Delta
Find Deal
Sat, Sep 13 - Tue, Sep 16
United Airlines Logo
8:30 am - 11:20 amIAD-MIA
2h 50mnonstop
United Airlines Logo
12:50 pm - 3:25 pmMIA-IAD
2h 35mnonstop
$165United Airlines
Find Deal
Wed, Aug 27 - Wed, Sep 3
United Airlines Logo
8:30 am - 11:20 amIAD-MIA
2h 50mnonstop
United Airlines Logo
12:50 pm - 3:25 pmMIA-IAD
2h 35mnonstop
$172United Airlines
Find Deal
Fri, Sep 5 - Tue, Sep 9

American Airlines flights from United States to Florida Keys

Our best American Airlines deals on United States to Florida Keys flight tickets
American Airlines
Aug 30
DCA5:05 amWashington, D.C. Reagan-National
2h 35m
MIA7:40 amMiami
Sep 2
MIA9:20 pmMiami
2h 39m
DCA11:59 pmWashington, D.C. Reagan-National
American Airlines
Oct 18
DCA5:00 amWashington, D.C. Reagan-National
2h 40m
MIA7:40 amMiami
Oct 25
MIA6:51 pmMiami
2h 36m
DCA9:27 pmWashington, D.C. Reagan-National
American Airlines
Sep 4
DCA3:59 pmWashington, D.C. Reagan-National
2h 46m
MIA6:45 pmMiami
Sep 8
MIA2:27 pmMiami
2h 33m
DCA5:00 pmWashington, D.C. Reagan-National

Spirit Airlines flights from United States to Florida Keys

Our best Spirit Airlines deals on United States to Florida Keys flight tickets
Spirit Airlines
Sep 3
EWR2:55 pmNewark
3h 11m
MIA6:06 pmMiami
Sep 6
MIA3:50 pmMiami
3h 11m
EWR7:01 pmNewark
Spirit Airlines
Aug 30
LGA7:55 pmNew York LaGuardia
3h 10m
MIA11:05 pmMiami
Sep 6
MIA6:42 pmMiami
3h 01m
LGA9:43 pmNew York LaGuardia
Spirit Airlines
Sep 3
ORD10:27 amChicago O'Hare Intl
3h 22m
MIA2:49 pmMiami
Sep 10
MIA7:00 amMiami
3h 18m
ORD9:18 amChicago O'Hare Intl

momondo Fare Finder

 
Customize your flight search to find flights from United States to Florida Keys that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, momondo users made 832,500 searches. Data last updated August 4, 2025.
Use the filters below to find and compare flights from the United States to Florida Keys that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

AtlantaMiami

ATL - MIA

ATLMIA

Atlanta Hartsfield-Jackson

Wed 11/12

8:49 am-10:46 am

Nonstop1h 57m

Miami

Sat 11/15

7:05 am-9:17 am

Nonstop2h 12m

$53

AtlantaMiami

ATL - MIA

ATLMIA

Atlanta Hartsfield-Jackson

Wed 10/1

3:12 pm-5:15 pm

Nonstop2h 03m

Miami

Mon 10/6

6:59 pm-9:18 pm

Nonstop2h 19m

$54

NewarkMiami

EWR - MIA

EWRMIA

Newark

Wed 9/3

2:55 pm-6:06 pm

Nonstop3h 11m

Miami

Sat 9/6

3:50 pm-7:01 pm

Nonstop3h 11m

$79

New YorkMiami

LGA - MIA

LGAMIA

New York LaGuardia

Sat 8/30

7:55 pm-11:05 pm

Nonstop3h 10m

Miami

Sat 9/6

6:42 pm-9:43 pm

Nonstop3h 01m

$80

Washington, D.C.Miami

DCA - MIA

DCAMIA

Washington, D.C. Reagan-National

Sat 8/30

5:05 am-7:40 am

Nonstop2h 35m

Miami

Tue 9/2

9:20 pm-11:59 pm

Nonstop2h 39m

$99

Washington, D.C.Miami

DCA - MIA

DCAMIA

Washington, D.C. Reagan-National

Sat 10/18

5:00 am-7:40 am

Nonstop2h 40m

Miami

Sat 10/25

6:51 pm-9:27 pm

Nonstop2h 36m

$100

BostonMiami

BOS - MIA

BOSMIA

Boston Logan Intl

Sat 9/13

7:10 am-10:43 am

Nonstop3h 33m

Miami

Tue 9/16

11:38 am-2:59 pm

Nonstop3h 21m

$117

BostonMiami

BOS - MIA

BOSMIA

Boston Logan Intl

Sat 9/13

7:10 am-10:43 am

Nonstop3h 33m

Miami

Tue 9/16

7:38 pm-1:18 am

1 stop5h 40m

$127

Washington, D.C.Miami

IAD - MIA

IADMIA

Washington, D.C. Dulles Intl

Wed 8/27

8:30 am-11:20 am

Nonstop2h 50m

Miami

Wed 9/3

12:50 pm-3:25 pm

Nonstop2h 35m

$165

Washington, D.C.Miami

IAD - MIA

IADMIA

Washington, D.C. Dulles Intl

Fri 9/5

8:30 am-11:20 am

Nonstop2h 50m

Miami

Tue 9/9

12:50 pm-3:25 pm

Nonstop2h 35m

$172

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
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See travel insights to Florida Keys from

How to get the cheapest flight ticket from United States to Florida Keys

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

What is the cheapest month to fly to Florida Keys?

The month of January is another great option to travel to Florida Keys, with average flight prices from United States averaging around $192.

What is the cheapest day to depart on your flight to Florida Keys?

The cheapest day to depart from United States to Florida Keys is on a Saturday when prices can be found for as low as $539. The most expensive day to fly to Florida Keys is Sunday, with ticket prices averaging around $595.

What is the cheapest time of day to depart on your flight to Florida Keys?

According to our data, the cheapest time of day to fly to Florida Keys is in the afternoon. momondo users have found flights departing from United States to Florida Keys in the afternoon for as low as $484. Keep in mind that these prices may fluctuate based on what airline you choose and the time of year you plan to travel. Flights at noon are often more expensive with an average ticket price of $621.

What is the cheapest United States to Florida Keys flight route?

Fly from Orlando to Key West for the best United States - Florida Keys flight prices

How far in advance should I book a flight to Florida Keys?

You are more likely to see cheaper flights to Florida Keys from United States when booking weeks ahead of your departure date. In general, you can expect to find flights to Florida Keys for around $235 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Florida Keys from United States for as low as $176 on momondo.

What cabin class options are available on United States to Florida Keys flights?

There are 4 cabin classes available to choose from on United States to Florida Keys flights. Cabin price and availability will vary by airline so perform a search above to find the right deals for you.

Can stopping save me money on United States to Florida Keys flights?

You could potentially save up to 23% on your flight if you consider stops on a United States to Florida Keys flight.

Cheap United States to Florida Keys flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from United States to Florida Keys

Best Price Found

$34

Fastest flight time

1h 51m

Direct flights

Every day

Airports in Florida Keys

1 airport
The best one-way flight to Florida Keys from United States in the past 72 hours is $34. The best round-trip flight deal from United States to Florida Keys found on momondo in the last 72 hours is $53.
The fastest flight from United States to Florida Keys takes 1h 51m
Direct flights go from United States to Florida Keys every day.
There is 1 airport near Florida Keys: Miami (MIA)

  • When did momondo last update prices for flights from United States to Florida Keys?

    Prices for flights from United States to Florida Keys were last updated today.

  • How many operators does momondo search for flights from United States to Florida Keys?

  • How old do you have to be to fly from United States to Florida Keys?

    The minimum age for a child to fly alone is five, but airlines that offer an unaccompanied minor (UNMR) service may have their own age limitations. Flight duration, scheduling, and layovers are among the considerations that may influence age limits. We recommend that you double-check with the airline you are booking with for travel from United States to Florida Keys.

  • What documentation or ID do you need to fly to Florida Keys?

    The necessary travel and health documents for your Florida Keys trip may vary depending on your travel plans and individual circumstances. Generally, you should have various documents, such as a national ID card or driver's license and a passport that is valid for six months beyond your scheduled arrival date. We recommend seeking advice from your airline or a trusted third party, such as IATA.

  • What is the most popular plane model from United States to Florida Keys?


Best airlines flying from United States to Florida Keys

Compare and see reviews for airlines that fly from United States to Florida Keys with momondo
Airline
Rating
Free Cancellation
Price
Spirit AirlinesPriceFrom $66Free CancellationRating
6.3
8,053 reviews
Search Spirit Airlines flights
Allegiant AirPriceFrom $80Free CancellationRating
7.2
702 reviews
Search Allegiant Air flights
United AirlinesPriceFrom $86Free CancellationRating
7.4
8,912 reviews
Search United Airlines flights
Breeze AirwaysPriceFrom $91Free CancellationRating
8.0
191 reviews
Search Breeze Airways flights
Silver AirwaysPriceFrom $119Free CancellationRating
5.9
251 reviews
Search Silver Airways flights
JetBluePriceFrom $119Free CancellationRating
7.2
2,915 reviews
Search JetBlue flights
American AirlinesPriceFrom $179Free CancellationRating
7.2
10,000 reviews
Search American Airlines flights
DeltaPriceFrom $216Free CancellationRating
8.0
7,987 reviews
Search Delta flights

Why use momondo?

Why should I use momondo to find a flight deal from United States to Florida Keys?

momondo compares prices from hundreds of airlines and agents so you can find and book the best deal on flights from United States to Florida Keys. Millions of users trust and use momondo every year so you are in good hands.

Can I find flights from United States to Florida Keys with flexible booking policies on momondo?

Flights from United States to Florida Keys with flexible booking policies can be found by using the search form above and then selecting our dedicated flexible booking filter, which will highlight only the flights where this policy is applied.

How can momondo help me find flights from United States to Florida Keys?

Once you have performed a search in the form on the page, momondo provides useful filters and insights. We can show you the cheapest days and times to fly as well as help filter your options to help you make an informed choice when booking flights to Florida Keys from United States.

I’m not ready to book a flight from United States to Florida Keys right now. Can momondo alert me if prices change?

If you are not ready to book a flight from United States to Florida Keys now, use our insights above to find helpful tips or alternatively set up a price alert, where momondo will track prices on flights to Florida Keys and let you know when they change.


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1 adult
Sat 8/9
Sat 8/16

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Popular flights according to clicks in the last 7 days on momondo