What is the cheapest airline that flies from United States to Florida Keys?

Frontier, Spirit Airlines, and Delta are the most popular carriers operating from United States to Florida Keys

What airlines fly to Florida Keys?

American Airlines, United Airlines and Delta are the top three most popular airlines that fly to Florida Keys from United States according to our data. American Airlines is the first choice among our users, with 60% of people opting to fly with this airline when traveling to Florida Keys. Keep in mind that there are 8 different airlines that fly to Florida Keys on a routine basis, so you have a few additional options to choose from.

How many flights depart from United States to Florida Keys on average per week?

2,005 flights are operational weekly from United States to Florida Keys as of December 2025. The most popular departure day for this route is Thu, with 16% of flights per week taking off on this day.

How long is the flight from United States to Florida Keys?

On average, it takes 12h 45m to fly from United States to Florida Keys if you fly out of San Francisco (the most popular airport in United States) and into Incheon Intl Airport (the most popular airport in Florida Keys). If you’re flying out of Los Angeles and into Incheon Intl Airport, then the flight time is around 12h 55m.

How many flights depart from United States to Florida Keys on average per day?

286 flights are operational daily from United States to Florida Keys as of December 2025. The most popular departure time for this route is 6:00PM, with 46% of flights per day taking off in the evening.

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?

There are 9 operators available for flights from United States to Florida Keys as of December 2025.

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.

$37 Cheap Flights from the United States to Florida Keys in 2025/26

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Find the cheapest flights from the United States to Florida Keys

Round-trip

One-way

Last minute

Direct

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

Enter your travel dates to find the best prices.

10:02 am - 1:21 pm

JFK

MIA

3h 19mnonstop

6:00 am - 9:04 am

MIA

JFK

3h 04mnonstop

$71Frontier

Tue, Jan 20 - Sun, Feb 15

8:00 pm - 11:16 pm

LGA

MIA

3h 16mnonstop

6:02 am - 9:00 am

MIA

LGA

2h 58mnonstop

$71Multiple Airlines

Sat, Jan 24 - Wed, Jan 28

10:02 am - 1:21 pm

JFK

MIA

3h 19mnonstop

6:00 am - 9:07 am

MIA

JFK

3h 07mnonstop

$72Frontier

Sun, Feb 22 - Fri, Feb 27

10:00 pm - 1:14 am

LGA

MIA

3h 14mnonstop

5:55 pm - 9:05 pm

MIA

LGA

3h 10mnonstop

$72Frontier

Tue, Feb 17 - Thu, Feb 19

8:39 pm - 11:59 pm

LGA

MIA

3h 20mnonstop

4:01 pm - 7:00 pm

MIA

LGA

2h 59mnonstop

$74Spirit Airlines

Sat, Jan 10 - Sat, Jan 17

8:59 am - 12:20 pm

LGA

MIA

3h 21mnonstop

6:02 am - 9:00 am

MIA

LGA

2h 58mnonstop

$75Spirit Airlines

Wed, Jan 7 - Tue, Jan 13

2:35 pm - 5:33 pm

DCA

MIA

2h 58mnonstop

11:21 am - 2:00 pm

MIA

DCA

2h 39mnonstop

$131Delta

Wed, Jan 7 - Wed, Jan 14

2:55 pm - 5:53 pm

DCA

MIA

2h 58mnonstop

11:21 am - 2:00 pm

MIA

DCA

2h 39mnonstop

$134Delta

Sat, Jan 10 - Wed, Jan 14

7:59 pm - 10:56 pm

DCA

MIA

2h 57mnonstop

6:51 pm - 9:30 pm

MIA

DCA

2h 39mnonstop

$137American Airlines

Sat, Jan 10 - Sat, Jan 17

7:59 pm - 10:56 pm

DCA

MIA

2h 57mnonstop

6:51 pm - 9:30 pm

MIA

DCA

2h 39mnonstop

$138American Airlines

Sat, Jan 24 - Sat, Jan 31

Spirit Airlines flights from United States to Florida Keys

Our best Spirit Airlines deals on United States to Florida Keys flight tickets

Spirit Airlines

Jan 5

LGA7:55 pmNew York LaGuardia

3h 22m

MIA11:17 pmMiami

Jan 8

MIA4:01 pmMiami

2h 59m

LGA7:00 pmNew York LaGuardia

$74

Find similar

Spirit Airlines

Jan 7

LGA8:59 amNew York LaGuardia

3h 21m

MIA12:20 pmMiami

Jan 14

MIA6:02 amMiami

2h 58m

LGA9:00 amNew York LaGuardia

$75

Find similar

Spirit Airlines

Dec 31

LGA7:55 pmNew York LaGuardia

3h 22m

MIA11:17 pmMiami

Jan 8

MIA6:02 amMiami

2h 58m

LGA9:00 amNew York LaGuardia

$79

Find similar

American Airlines flights from United States to Florida Keys

Our best American Airlines deals on United States to Florida Keys flight tickets

American Airlines

Jan 10

DCA5:58 pmWashington, D.C. Reagan-National

3h 04m

MIA9:02 pmMiami

Jan 17

MIA6:26 amMiami

2h 34m

DCA9:00 amWashington, D.C. Reagan-National

$137

Find similar

American Airlines

Jan 24

DCA7:59 pmWashington, D.C. Reagan-National

2h 57m

MIA10:56 pmMiami

Jan 31

MIA6:51 pmMiami

2h 39m

DCA9:30 pmWashington, D.C. Reagan-National

$138

Find similar

American Airlines

Dec 16

DCA5:59 amWashington, D.C. Reagan-National

2h 42m

MIA8:41 amMiami

Dec 17

MIA11:44 amMiami

2h 36m

DCA2:20 pmWashington, D.C. Reagan-National

$145

Find similar

momondo Fare Finder

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

New YorkMiami

JFK - MIA

JFKMIA

New York John F Kennedy Intl

Tue 1/20

10:02 am-1:21 pm

Nonstop3h 19m

Miami

Sun 2/15

6:00 am-9:04 am

Nonstop3h 04m

$71

New YorkMiami

LGA - MIA

LGAMIA

New York LaGuardia

Sat 1/24

8:00 pm-11:16 pm

Nonstop3h 16m

Miami

Wed 1/28

6:02 am-9:00 am

Nonstop2h 58m

$71

New YorkMiami

JFK - MIA

JFKMIA

New York John F Kennedy Intl

Sun 2/22

10:02 am-1:21 pm

Nonstop3h 19m

Miami

Fri 2/27

6:00 am-9:07 am

Nonstop3h 07m

$72

New YorkMiami

LGA - MIA

LGAMIA

New York LaGuardia

Tue 2/17

10:00 pm-1:14 am

Nonstop3h 14m

Miami

Thu 2/19

5:55 pm-9:05 pm

Nonstop3h 10m

$72

New YorkMiami

LGA - MIA

LGAMIA

New York LaGuardia

Sat 1/10

8:39 pm-11:59 pm

Nonstop3h 20m

Miami

Sat 1/17

4:01 pm-7:00 pm

Nonstop2h 59m

$74

New YorkMiami

LGA - MIA

LGAMIA

New York LaGuardia

Wed 1/7

8:59 am-12:20 pm

Nonstop3h 21m

Miami

Tue 1/13

6:02 am-9:00 am

Nonstop2h 58m

$75

Washington, D.C.Miami

DCA - MIA

DCAMIA

Washington, D.C. Reagan-National

Wed 1/7

2:35 pm-5:33 pm

Nonstop2h 58m

Miami

Wed 1/14

11:21 am-2:00 pm

Nonstop2h 39m

$131

Washington, D.C.Miami

DCA - MIA

DCAMIA

Washington, D.C. Reagan-National

Sat 1/10

2:55 pm-5:53 pm

Nonstop2h 58m

Miami

Wed 1/14

11:21 am-2:00 pm

Nonstop2h 39m

$134

Washington, D.C.Miami

DCA - MIA

DCAMIA

Washington, D.C. Reagan-National

Sat 1/10

7:59 pm-10:56 pm

Nonstop2h 57m

Miami

Sat 1/17

6:51 pm-9:30 pm

Nonstop2h 39m

$137

Washington, D.C.Miami

DCA - MIA

DCAMIA

Washington, D.C. Reagan-National

Sat 1/24

7:59 pm-10:56 pm

Nonstop2h 57m

Miami

Sat 1/31

6:51 pm-9:30 pm

Nonstop2h 39m

$138

Flights are sorted by cheapest round-trip flights first.

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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

Prices

Airlines

Other information

What is the cheapest month to fly to Florida Keys?

The month of October is another great option to travel to Florida Keys, with average flight prices from United States averaging around $187.

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 $532. The most expensive day to fly to Florida Keys is Sunday, with ticket prices averaging around $583.

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 $479. 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 $596.

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 $223 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 $168 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 57% 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

Fastest flight time	0h 50m
Direct flights	Every day
Airports in Florida Keys	3 airports

The fastest flight from United States to Florida Keys takes 0h 50m

Direct flights go from United States to Florida Keys every day.

There are 3 airports in Florida Keys. From United States there are direct flights to Miami (MIA).

Search flight deals

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?
There are 9 operators available for flights from United States to Florida Keys as of December 2025.
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?
Based on momondo bookings for flights between United States and Florida Keys, the leading plane model is Airbus A321neo, making up 13.83% of the total bookings. Other popular models include Airbus A320-100/200 with 12.19%, Boeing 787-9 Dreamliner with 9.46%, and Airbus A320neo with 7.58%.

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 Airlines	PriceFrom $66	Free Cancellation	Rating 6.3 8,180 reviews	Search Spirit Airlines flights
Allegiant Air	PriceFrom $80	Free Cancellation	Rating 7.2 699 reviews	Search Allegiant Air flights
United Airlines	PriceFrom $86	Free Cancellation	Rating 7.4 9,094 reviews	Search United Airlines flights
Breeze Airways	PriceFrom $99	Free Cancellation	Rating 8.2 244 reviews	Search Breeze Airways flights
JetBlue	PriceFrom $119	Free Cancellation	Rating 7.2 2,899 reviews	Search JetBlue flights
Silver Airways	PriceFrom $124	Free Cancellation	Rating 5.7 237 reviews	Search Silver Airways flights
Delta	PriceFrom $148	Free Cancellation	Rating 7.9 8,007 reviews	Search Delta flights
American Airlines	PriceFrom $189	Free Cancellation	Rating 7.2 11,049 reviews	Search American Airlines 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.

An easier way to manage your Florida Keys trip

We make it super easy to schedule, organize and travel with friends or family. Trips is free — and available to use no matter where you book.

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Find better results for your trip to Florida Keys

Popular cities in Florida Keys

Flights to New Yorkfrom $34

Flights to Los Angelesfrom $49

Flights to Miamifrom $49

Flights to Chicagofrom $49

Flights to Orlandofrom $41

Flights to San Franciscofrom $53

Flights to Las Vegasfrom $40

Flights to Washington, D.C.from $49

Flights to Bostonfrom $55

Flights to Atlantafrom $49

Flights to Dallasfrom $52

Flights to Seattlefrom $58

Cheap flights from the United States to Florida Keys from $37

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 1/18. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.

Big names and deals

Big names and deals

Filter for what you want

Filter for what you want

Trusted and free

Trusted and free

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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

Recent one-way flight deals from the United States to Florida Keys

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Spirit Airlines flights from United States to Florida Keys

Our best Spirit Airlines deals on United States to Florida Keys flight tickets

American Airlines flights from United States to Florida Keys

Our best American Airlines deals on United States to Florida Keys flight tickets

momondo Fare Finder

Use the filters below to find and compare flights from the United States to Florida Keys that are best for you.

See travel insights to Florida Keys from

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

What is the cheapest month to fly to Florida Keys?

The month of October is another great option to travel to Florida Keys, with average flight prices from United States averaging around $187.

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 $532. The most expensive day to fly to Florida Keys is Sunday, with ticket prices averaging around $583.

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

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?

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 57% on your flight if you consider stops on a United States to Florida Keys flight.

What is the cheapest airline that flies from United States to Florida Keys?

Frontier, Spirit Airlines, and Delta are the most popular carriers operating from United States to Florida Keys

What airlines fly to Florida Keys?

How many flights depart from United States to Florida Keys on average per day?

286 flights are operational daily from United States to Florida Keys as of December 2025. The most popular departure time for this route is 6:00PM, with 46% of flights per day taking off in the evening.

How many flights depart from United States to Florida Keys on average per week?

2,005 flights are operational weekly from United States to Florida Keys as of December 2025. The most popular departure day for this route is Thu, with 16% of flights per week taking off on this day.

How long is the flight from United States to Florida Keys?

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

Fastest flight time

Direct flights

Airports in Florida Keys

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

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?

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

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

Why use momondo?

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

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

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

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

An easier way to manage your Florida Keys trip

We make it super easy to schedule, organize and travel with friends or family. Trips is free — and available to use no matter where you book.

Get notified when prices go down

Daily price changes in your inbox - only with Price Alerts.

Find better results for your trip to Florida Keys

Popular cities in Florida Keys

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