What is the cheapest airline that flies from District of Columbia to Florida Keys?

Delta, United Airlines, and Allegiant Air are the most popular carriers operating from District of Columbia to Florida Keys

What airlines fly to Florida Keys?

American Airlines, Delta and United Airlines are the top three most popular airlines that fly to Florida Keys from District of Columbia according to our data. American Airlines is the first choice among our users, with 70% of people opting to fly with this airline when traveling to Florida Keys. Keep in mind that there are 4 different airlines that fly to Florida Keys on a routine basis, so you have a few additional options to choose from.

How many operators does momondo search for flights from District of Columbia to Florida Keys?

As of November 2025, there are 8 operators available to choose from for flights from District of Columbia to Florida Keys.

How old do you have to be to fly from District of Columbia to Florida Keys?

The minimum age a child must be to fly alone is five but airlines that offer an unaccompanied minor (UNMR) service will have their own age restrictions, including rules around flight length, timings, and stopovers. We always recommend checking with the individual airline you are booking with to travel from District of Columbia to Florida Keys.

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

The required travel and health documents for your Florida Keys trip may vary depending on your itinerary and personal circumstances. As a general rule, you should carry multiple documents, including a national ID card or driver's license and a passport valid for six months after your intended arrival at Florida Keys. We recommend that you seek guidance from your airline or a reliable third party such as IATA.

$51 Cheap Flights from District of Columbia to Florida Keys in 2025/26

Q: How many flights depart from District of Columbia to Florida Keys on average per day?

The number of flights available between District of Columbia and Florida Keys is 16 per day as of November 2025. The most frequent departure time is 7:00AM, with 81% of daily flights leaving at noon.

Q: How many flights depart from District of Columbia to Florida Keys on average per week?

As of November 2025, 113 flights take off from District of Columbia and land in Florida Keys each week. The most common flight departure day for this route is Thu, with 21% of weekly flights taking off on this day.

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Find the cheapest flights from District of Columbia to Florida Keys

Round-trip

One-way

Last minute

Direct

Cheap round-trip flights

Enter your travel dates to find the best prices.

4:00 pm - 6:45 pmIAD-MIA

2h 45mnonstop

8:30 am - 11:09 amMIA-IAD

2h 39mnonstop

$84Frontier

Find Deal

Fri, Dec 12 - Sun, Dec 14

7:05 pm - 7:51 amIAD-MIA

12h 46m1 stop

11:19 am - 2:03 pmMIA-IAD

2h 44mnonstop

$85Frontier

Find Deal

Sat, Jan 10 - Sat, Jan 17

5:45 am - 11:12 amIAD-MIA

5h 27m1 stop

12:26 pm - 3:05 pmMIA-IAD

2h 39mnonstop

$92Multiple Airlines

Find Deal

Mon, Dec 8 - Fri, Dec 12

5:00 am - 7:40 amDCA-MIA

2h 40mnonstop

5:52 pm - 8:25 pmMIA-DCA

2h 33mnonstop

$127American Airlines

Find Deal

Wed, Dec 3 - Tue, Dec 9

5:15 pm - 8:10 pmDCA-MIA

2h 55mnonstop

2:32 pm - 4:59 pmMIA-DCA

2h 27mnonstop

$128American Airlines

Find Deal

Tue, Dec 2 - Tue, Dec 9

2:25 pm - 5:17 pmDCA-MIA

2h 52mnonstop

1:35 pm - 4:14 pmMIA-DCA

2h 39mnonstop

$134Delta

Find Deal

Sun, Dec 14 - Wed, Dec 24

2:25 pm - 5:17 pmDCA-MIA

2h 52mnonstop

11:24 am - 1:59 pmMIA-DCA

2h 35mnonstop

$137Delta

Find Deal

Mon, Dec 15 - Tue, Dec 16

7:57 pm - 1:39 pmIAD-EYW

17h 42m1 stop

8:55 am - 8:24 pmEYW-IAD

11h 29m1 stop

$281Multiple Airlines

Find Deal

Thu, Dec 11 - Sun, Dec 14

1:06 pm - 4:29 pmIAD-EYW

3h 23mnonstop

3:09 pm - 11:06 pmEYW-IAD

7h 57m1 stop

$284United Airlines

Find Deal

Thu, Dec 18 - Wed, Dec 24

1:00 pm - 4:22 pmIAD-EYW

3h 22mnonstop

6:05 pm - 8:53 pmEYW-IAD

2h 48mnonstop

$293United Airlines

Find Deal

Sat, Jan 10 - Tue, Jan 13

American Airlines flights from District of Columbia to Florida Keys

Our best American Airlines deals on District of Columbia to Florida Keys flight tickets

American Airlines

Dec 3

DCA5:00 amWashington, D.C. Reagan-National

2h 40m

MIA7:40 amMiami

Dec 9

MIA5:52 pmMiami

2h 33m

DCA8:25 pmWashington, D.C. Reagan-National

$127

Find similar

American Airlines

Dec 2

DCA5:15 pmWashington, D.C. Reagan-National

2h 55m

MIA8:10 pmMiami

Dec 9

MIA2:32 pmMiami

2h 27m

DCA4:59 pmWashington, D.C. Reagan-National

$128

Find similar

American Airlines

Dec 9

DCA5:00 amWashington, D.C. Reagan-National

2h 40m

MIA7:40 amMiami

Dec 9

MIA4:28 pmMiami

2h 31m

DCA6:59 pmWashington, D.C. Reagan-National

$132

Find similar

Delta flights from District of Columbia to Florida Keys

Our best Delta deals on District of Columbia to Florida Keys flight tickets

Delta

Dec 14

DCA2:25 pmWashington, D.C. Reagan-National

2h 52m

MIA5:17 pmMiami

Dec 25

MIA10:21 amMiami

2h 35m

DCA12:56 pmWashington, D.C. Reagan-National

$134

Find similar

Delta

Dec 15

DCA2:25 pmWashington, D.C. Reagan-National

2h 52m

MIA5:17 pmMiami

Dec 16

MIA11:24 amMiami

2h 35m

DCA1:59 pmWashington, D.C. Reagan-National

$137

Find similar

Delta

Jan 14

DCA2:35 pmWashington, D.C. Reagan-National

2h 58m

MIA5:33 pmMiami

Jan 21

MIA11:21 amMiami

2h 39m

DCA2:00 pmWashington, D.C. Reagan-National

$139

Find similar

momondo Fare Finder

Use the filters below to find and compare flights from District of Columbia to Florida Keys that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Washington, D.C.Miami

IAD - MIA

IADMIA

Washington, D.C. Dulles Intl

Fri 12/12

4:00 pm-6:45 pm

Nonstop2h 45m

Miami

Sun 12/14

8:30 am-11:09 am

Nonstop2h 39m

$84

Washington, D.C.Miami

IAD - MIA

IADMIA

Washington, D.C. Dulles Intl

Sat 1/10

7:05 pm-7:51 am

1 stop12h 46m

Miami

Sat 1/17

11:19 am-2:03 pm

Nonstop2h 44m

$85

Washington, D.C.Miami

IAD - MIA

IADMIA

Washington, D.C. Dulles Intl

Mon 12/8

5:45 am-11:12 am

1 stop5h 27m

Miami

Fri 12/12

12:26 pm-3:05 pm

Nonstop2h 39m

$92

Washington, D.C.Miami

DCA - MIA

DCAMIA

Washington, D.C. Reagan-National

Wed 12/3

5:00 am-7:40 am

Nonstop2h 40m

Miami

Tue 12/9

5:52 pm-8:25 pm

Nonstop2h 33m

$127

Washington, D.C.Miami

DCA - MIA

DCAMIA

Washington, D.C. Reagan-National

Tue 12/2

5:15 pm-8:10 pm

Nonstop2h 55m

Miami

Tue 12/9

2:32 pm-4:59 pm

Nonstop2h 27m

$128

Washington, D.C.Miami

DCA - MIA

DCAMIA

Washington, D.C. Reagan-National

Sun 12/14

2:25 pm-5:17 pm

Nonstop2h 52m

Miami

Wed 12/24

1:35 pm-4:14 pm

Nonstop2h 39m

$134

Washington, D.C.Miami

DCA - MIA

DCAMIA

Washington, D.C. Reagan-National

Mon 12/15

2:25 pm-5:17 pm

Nonstop2h 52m

Miami

Tue 12/16

11:24 am-1:59 pm

Nonstop2h 35m

$137

Washington, D.C.Key West

IAD - EYW

IADEYW

Washington, D.C. Dulles Intl

Thu 12/11

7:57 pm-1:39 pm

1 stop17h 42m

Key West

Sun 12/14

8:55 am-8:24 pm

1 stop11h 29m

$281

Washington, D.C.Key West

IAD - EYW

IADEYW

Washington, D.C. Dulles Intl

Thu 12/18

1:06 pm-4:29 pm

Nonstop3h 23m

Key West

Wed 12/24

3:09 pm-11:06 pm

1 stop7h 57m

$284

Washington, D.C.Key West

IAD - EYW

IADEYW

Washington, D.C. Dulles Intl

Sat 1/10

1:00 pm-4:22 pm

Nonstop3h 22m

Key West

Tue 1/13

6:05 pm-8:53 pm

Nonstop2h 48m

$293

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first

How to get the cheapest flight ticket from District of Columbia 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 January is another great option to travel to Florida Keys, with average flight prices from District of Columbia averaging around $146.

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

The cheapest day to depart from District of Columbia to Florida Keys is on a Monday when prices can be found for as low as $201. The most expensive day to fly to Florida Keys is Wednesday, with ticket prices averaging around $261.

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 evening. momondo users have found flights departing from District of Columbia to Florida Keys in the evening for as low as $176. Keep in mind that these prices may fluctuate based on what airline you choose and the time of year you plan to travel. Flights in the morning are often more expensive with an average ticket price of $318.

What is the cheapest District of Columbia to Florida Keys flight route?

Fly from Washington, D.C. Reagan-National to Key West for the best District of Columbia - 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 District of Columbia when booking weeks ahead of your departure date. In general, you can expect to find flights to Florida Keys for around $258 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Florida Keys from District of Columbia for as low as $183 on momondo.

What cabin class options are available on District of Columbia to Florida Keys flights?

There are 2 cabin classes available to choose from on District of Columbia 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 District of Columbia to Florida Keys flights?

No. A direct flight is the cheapest option for a flight between District of Columbia to Florida Keys.

Cheap District of Columbia to Florida Keys flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from District of Columbia to Florida Keys

Fastest flight time	2h 36m
Direct flights	Every day
Airports in Florida Keys	1 airport

The fastest flight from District of Columbia to Florida Keys takes 2h 36m

Direct flights go from District of Columbia to Florida Keys every day.

There is 1 airport near Florida Keys: Miami (MIA)

Search flight deals

When did momondo last update prices for flights from District of Columbia to Florida Keys?
Prices for flights from District of Columbia to Florida Keys refresh daily.
How many operators does momondo search for flights from District of Columbia to Florida Keys?
As of November 2025, there are 8 operators available to choose from for flights from District of Columbia to Florida Keys.
How old do you have to be to fly from District of Columbia to Florida Keys?
The minimum age a child must be to fly alone is five but airlines that offer an unaccompanied minor (UNMR) service will have their own age restrictions, including rules around flight length, timings, and stopovers. We always recommend checking with the individual airline you are booking with to travel from District of Columbia to Florida Keys.
What documentation or ID do you need to fly to Florida Keys?
The required travel and health documents for your Florida Keys trip may vary depending on your itinerary and personal circumstances. As a general rule, you should carry multiple documents, including a national ID card or driver's license and a passport valid for six months after your intended arrival at Florida Keys. We recommend that you seek guidance from your airline or a reliable third party such as IATA.
What is the most popular plane model from District of Columbia to Florida Keys?
Based on momondo bookings for this flight route, the most popular plane model on flight routes from District of Columbia to Florida Keys is Airbus A320neo (11.74% of total bookings). The next most popular plane models are Boeing 777 (9.83%), Airbus A320-100/200 (9.05%), and Airbus A319 (7.06%).

Best airlines flying from District of Columbia to Florida Keys

Compare and see reviews for airlines that fly from District of Columbia to Florida Keys with momondo

Airline	Rating	Free Cancellation	Price
Spirit Airlines	PriceFrom $105	Free Cancellation	Rating 6.3 8,159 reviews	Search Spirit Airlines flights
Delta	PriceFrom $117	Free Cancellation	Rating 7.9 8,002 reviews	Search Delta flights
United Airlines	PriceFrom $173	Free Cancellation	Rating 7.4 9,029 reviews	Search United Airlines flights
American Airlines	PriceFrom $258	Free Cancellation	Rating 7.2 11,047 reviews	Search American Airlines flights

Why use momondo?

Why should I use momondo to find a flight deal from District of Columbia to Florida Keys?

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

Can I find flights from District of Columbia to Florida Keys with flexible booking policies on momondo?

All flight searches from District of Columbia to Florida Keys on momondo can be filtered to show those which offer flexible booking policies.

How can momondo help me find flights from District of Columbia to Florida Keys?

Once all potential District of Columbia to Florida Keys flight options are in front of you, momondo lets you sort and filter flights based on preferences such as airline, price and flight times amongst many other options.

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

Price alerts on flights to Florida Keys from District of Columbia are quick and easy to set up on momondo. Simply perform a search and select the price alert feature. It is as simple as that.

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.

Start using Trips

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Find better results for your trip to Florida Keys

Popular cities in Florida Keys

Flights to New Yorkfrom $44

Flights to Los Angelesfrom $48

Flights to Miamifrom $48

Flights to Chicagofrom $48

Flights to Orlandofrom $39

Flights to Las Vegasfrom $49

Flights to San Franciscofrom $55

Flights to Washington, D.C.from $36

Flights to Bostonfrom $58

Flights to Atlantafrom $38

Flights to Dallasfrom $45

Flights to Seattlefrom $57

District of Columbia flight routes

Flights from Washington, D.C. Dulles Intl to Miami

Flights from Washington, D.C. Dulles Intl to Atlanta Hartsfield-Jackson

Flights from Washington, D.C. Dulles Intl to Orlando

Flights from Washington, D.C. Dulles Intl to Knoxville McGhee Tyson

Flights from Washington, D.C. Dulles Intl to South Bend/Michiana

Flights from Washington, D.C. Dulles Intl to Tweed-New Haven

Cheap flights from District of Columbia to Florida Keys from $51

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 District of Columbia to Florida Keys

Cheap round-trip flights

Cheap one-way flights

Cheap last minute flights

Cheap direct flights

American Airlines flights from District of Columbia to Florida Keys

Our best American Airlines deals on District of Columbia to Florida Keys flight tickets

Delta flights from District of Columbia to Florida Keys

Our best Delta deals on District of Columbia to Florida Keys flight tickets

momondo Fare Finder

Use the filters below to find and compare flights from District of Columbia to Florida Keys that are best for you.

See travel insights to Florida Keys from

How to get the cheapest flight ticket from District of Columbia 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 District of Columbia averaging around $146.

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

The cheapest day to depart from District of Columbia to Florida Keys is on a Monday when prices can be found for as low as $201. The most expensive day to fly to Florida Keys is Wednesday, with ticket prices averaging around $261.

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

What is the cheapest District of Columbia to Florida Keys flight route?

Fly from Washington, D.C. Reagan-National to Key West for the best District of Columbia - Florida Keys flight prices

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

What cabin class options are available on District of Columbia to Florida Keys flights?

There are 2 cabin classes available to choose from on District of Columbia 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 District of Columbia to Florida Keys flights?

No. A direct flight is the cheapest option for a flight between District of Columbia to Florida Keys.

What is the cheapest airline that flies from District of Columbia to Florida Keys?

Delta, United Airlines, and Allegiant Air are the most popular carriers operating from District of Columbia to Florida Keys

What airlines fly to Florida Keys?

How many flights depart from District of Columbia to Florida Keys on average per day?

The number of flights available between District of Columbia and Florida Keys is 16 per day as of November 2025. The most frequent departure time is 7:00AM, with 81% of daily flights leaving at noon.

How many flights depart from District of Columbia to Florida Keys on average per week?

As of November 2025, 113 flights take off from District of Columbia and land in Florida Keys each week. The most common flight departure day for this route is Thu, with 21% of weekly flights taking off on this day.

Cheap District of Columbia to Florida Keys flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from District of Columbia to Florida Keys

Fastest flight time

Direct flights

Airports in Florida Keys

When did momondo last update prices for flights from District of Columbia to Florida Keys?

How many operators does momondo search for flights from District of Columbia to Florida Keys?

How old do you have to be to fly from District of Columbia to Florida Keys?

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

What is the most popular plane model from District of Columbia to Florida Keys?

Best airlines flying from District of Columbia to Florida Keys

Compare and see reviews for airlines that fly from District of Columbia to Florida Keys with momondo

Why use momondo?

Why should I use momondo to find a flight deal from District of Columbia to Florida Keys?

Can I find flights from District of Columbia to Florida Keys with flexible booking policies on momondo?

How can momondo help me find flights from District of Columbia to Florida Keys?

I’m not ready to book a flight from District of Columbia 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