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Cheap flights from District of Columbia to Florida Keys from $48

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from District of Columbia 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.
1 adult
0 bags

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Find the cheapest flights from District of Columbia to Florida Keys

Cheap round-trip flights

Enter your travel dates to find the best prices.
Frontier Logo
3:58 pm - 6:50 pm
IAD
-
MIA
2h 52mnonstop
Frontier Logo
5:30 am - 10:44 am
MIA
-
IAD
5h 14m
1 stop
$93Frontier
Mon, Feb 2 - Sat, Feb 7
Frontier Logo
3:58 pm - 6:50 pm
IAD
-
MIA
2h 52mnonstop
Frontier Logo
5:30 am - 10:44 am
MIA
-
IAD
5h 14m
1 stop
$94Frontier
Mon, Jan 26 - Sat, Jan 31
American Airlines Logo
7:59 pm - 10:52 pm
DCA
-
MIA
2h 53mnonstop
American Airlines Logo
9:50 pm - 12:36 am
MIA
-
DCA
2h 46mnonstop
$127American Airlines
Sat, Feb 28 - Wed, Mar 4
American Airlines Logo
5:59 am - 8:56 am
DCA
-
MIA
2h 57mnonstop
American Airlines Logo
9:52 pm - 12:38 am
MIA
-
DCA
2h 46mnonstop
$128American Airlines
Wed, Mar 11 - Wed, Mar 18
Delta Logo
2:30 pm - 5:28 pm
DCA
-
MIA
2h 58mnonstop
Delta Logo
11:21 am - 2:00 pm
MIA
-
DCA
2h 39mnonstop
$147Delta
Mon, Jan 26 - Wed, Feb 11
Delta Logo
1:55 pm - 4:49 pm
DCA
-
MIA
2h 54mnonstop
Delta Logo
11:21 am - 2:00 pm
MIA
-
DCA
2h 39mnonstop
$149Delta
Sat, Feb 21 - Tue, Feb 24
Multiple Airlines Logo
4:13 pm - 4:51 pm
IAD
-
EYW
24h 38m
1 stop
Multiple Airlines Logo
10:49 am - 4:33 pm
EYW
-
IAD
29h 44m
2 stops
$296Multiple Airlines
Sun, Feb 1 - Sat, Feb 7
Multiple Airlines Logo
9:21 am - 12:21 pm
IAD
-
EYW
27h 00m
1 stop
Multiple Airlines Logo
1:06 pm - 9:13 pm
EYW
-
IAD
8h 07m
1 stop
$297Multiple Airlines
Mon, Apr 6 - Mon, Apr 13
United Airlines Logo
1:00 pm - 4:22 pm
IAD
-
EYW
3h 22mnonstop
United Airlines Logo
6:05 pm - 8:53 pm
EYW
-
IAD
2h 48mnonstop
$301United Airlines
Sat, Jan 31 - Wed, Feb 4
United Airlines Logo
6:00 am - 1:02 pm
IAD
-
EYW
7h 02m
1 stop
United Airlines Logo
2:30 pm - 8:33 pm
EYW
-
IAD
6h 03m
1 stop
$303United Airlines
Wed, Jun 10 - Wed, Jun 17

Frontier flights from District of Columbia to Florida Keys

Our best Frontier deals on District of Columbia to Florida Keys flight tickets
Frontier
Jan 19
IAD1:48 pmWashington, D.C. Dulles Intl
2h 52m
MIA4:40 pmMiami
Jan 23
MIA5:14 pmMiami
2h 44m
IAD7:58 pmWashington, D.C. Dulles Intl
$87
Frontier
Jan 19
IAD1:48 pmWashington, D.C. Dulles Intl
2h 52m
MIA4:40 pmMiami
Jan 23
MIA5:14 pmMiami
2h 44m
IAD7:58 pmWashington, D.C. Dulles Intl
$88
Frontier
Jan 18
IAD1:48 pmWashington, D.C. Dulles Intl
2h 52m
MIA4:40 pmMiami
Jan 23
MIA5:14 pmMiami
2h 44m
IAD7:58 pmWashington, D.C. Dulles Intl
$90

Delta flights from District of Columbia to Florida Keys

Our best Delta deals on District of Columbia to Florida Keys flight tickets
Delta
Feb 24
DCA2:00 pmWashington, D.C. Reagan-National
2h 49m
MIA4:49 pmMiami
Mar 3
MIA11:21 amMiami
2h 39m
DCA2:00 pmWashington, D.C. Reagan-National
$127
Delta
Feb 11
DCA2:30 pmWashington, D.C. Reagan-National
2h 58m
MIA5:28 pmMiami
Feb 24
MIA11:21 amMiami
2h 39m
DCA2:00 pmWashington, D.C. Reagan-National
$137
Delta
Jan 28
DCA2:30 pmWashington, D.C. Reagan-National
2h 58m
MIA5:28 pmMiami
Feb 5
MIA11:21 amMiami
2h 39m
DCA2:00 pmWashington, D.C. Reagan-National
$147

momondo Fare Finder

 
Customize your flight search to find flights from District of Columbia 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 January 12, 2026.
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

Mon 2/2

3:58 pm-6:50 pm

Nonstop2h 52m

Miami

Sat 2/7

5:30 am-10:44 am

1 stop5h 14m

$93

Washington, D.C.Miami

IAD - MIA

IADMIA

Washington, D.C. Dulles Intl

Mon 1/26

3:58 pm-6:50 pm

Nonstop2h 52m

Miami

Sat 1/31

5:30 am-10:44 am

1 stop5h 14m

$94

Washington, D.C.Miami

DCA - MIA

DCAMIA

Washington, D.C. Reagan-National

Sat 2/28

7:59 pm-10:52 pm

Nonstop2h 53m

Miami

Wed 3/4

9:50 pm-12:36 am

Nonstop2h 46m

$127

Washington, D.C.Miami

DCA - MIA

DCAMIA

Washington, D.C. Reagan-National

Wed 3/11

5:59 am-8:56 am

Nonstop2h 57m

Miami

Wed 3/18

9:52 pm-12:38 am

Nonstop2h 46m

$128

Washington, D.C.Miami

DCA - MIA

DCAMIA

Washington, D.C. Reagan-National

Mon 1/26

2:30 pm-5:28 pm

Nonstop2h 58m

Miami

Wed 2/11

11:21 am-2:00 pm

Nonstop2h 39m

$147

Washington, D.C.Miami

DCA - MIA

DCAMIA

Washington, D.C. Reagan-National

Sat 2/21

1:55 pm-4:49 pm

Nonstop2h 54m

Miami

Tue 2/24

11:21 am-2:00 pm

Nonstop2h 39m

$149

Washington, D.C.Key West

IAD - EYW

IADEYW

Washington, D.C. Dulles Intl

Sun 2/1

4:13 pm-4:51 pm

1 stop24h 38m

Key West

Sat 2/7

10:49 am-4:33 pm

2 stops29h 44m

$296

Washington, D.C.Key West

IAD - EYW

IADEYW

Washington, D.C. Dulles Intl

Mon 4/6

9:21 am-12:21 pm

1 stop27h 00m

Key West

Mon 4/13

1:06 pm-9:13 pm

1 stop8h 07m

$297

Washington, D.C.Key West

IAD - EYW

IADEYW

Washington, D.C. Dulles Intl

Sat 1/31

1:00 pm-4:22 pm

Nonstop3h 22m

Key West

Wed 2/4

6:05 pm-8:53 pm

Nonstop2h 48m

$301

Washington, D.C.Key West

IAD - EYW

IADEYW

Washington, D.C. Dulles Intl

Wed 6/10

6:00 am-1:02 pm

1 stop7h 02m

Key West

Wed 6/17

2:30 pm-8:33 pm

1 stop6h 03m

$303

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 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 September is another great option to travel to Florida Keys, with average flight prices from District of Columbia averaging around $167.

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 Sunday when prices can be found for as low as $172. The most expensive day to fly to Florida Keys is Wednesday, with ticket prices averaging around $244.

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 District of Columbia to Florida Keys in the afternoon for as low as $147. 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 $291.

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 $234 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 $173 on momondo.

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

There are 3 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 40m

Direct flights

Every day

Airports in Florida Keys

3 airports
The fastest flight from District of Columbia to Florida Keys takes 2h 40m
Direct flights go from District of Columbia to Florida Keys every day.
There are 3 airports in Florida Keys. From District of Columbia there are direct flights to 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?

  • 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?

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 AirlinesPriceFrom $105Free CancellationRating
6.3
8,296 reviews
Search Spirit Airlines flights
DeltaPriceFrom $179Free CancellationRating
7.9
8,033 reviews
Search Delta flights
United AirlinesPriceFrom $186Free CancellationRating
7.4
9,143 reviews
Search United Airlines flights
American AirlinesPriceFrom $258Free CancellationRating
7.2
11,111 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.
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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
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