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Cheap flights from District of Columbia to Key West from $105

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 Key West departing on 2/1. 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 Key West

Cheap round-trip flights

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American Airlines Logo
9:59 am - 12:58 pmDCA-EYW
2h 59mnonstop
American Airlines Logo
5:31 pm - 8:26 pmEYW-DCA
2h 55mnonstop
$279American Airlines
Find Deal
Fri, Oct 31 - Mon, Nov 3
Multiple Airlines Logo
9:52 pm - 8:11 amIAD-EYW
10h 19m1 stop
Multiple Airlines Logo
8:36 pm - 4:34 pmEYW-IAD
19h 58m2 stops
$281Multiple Airlines
Find Deal
Thu, Nov 6 - Sun, Nov 9
Multiple Airlines Logo
8:53 pm - 10:07 amIAD-EYW
13h 14m1 stop
Multiple Airlines Logo
11:45 am - 8:20 pmEYW-IAD
32h 35m2 stops
$283Multiple Airlines
Find Deal
Fri, Oct 24 - Tue, Oct 28
Delta Logo
12:31 pm - 8:06 pmDCA-EYW
7h 35m1 stop
Delta Logo
1:57 pm - 6:33 pmEYW-DCA
4h 36m1 stop
$284Delta
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Wed, Oct 22 - Thu, Oct 30
Delta Logo
12:27 pm - 8:06 pmIAD-EYW
7h 39m1 stop
Delta Logo
6:17 pm - 11:20 pmEYW-IAD
5h 03m1 stop
$284Delta
Find Deal
Wed, Oct 22 - Thu, Oct 30
Allegiant Air Logo
8:16 pm - 1:43 pmIAD-EYW
17h 27m1 stop
Allegiant Air Logo
3:15 pm - 1:45 pmEYW-IAD
22h 30m2 stops
$287Allegiant Air
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Sun, Dec 21 - Tue, Dec 30
Delta Logo
1:52 pm - 8:06 pmDCA-EYW
6h 14m1 stop
Delta Logo
6:10 pm - 11:40 pmEYW-DCA
5h 30m1 stop
$289Delta
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Sat, Dec 13 - Tue, Dec 16
Allegiant Air Logo
4:39 pm - 9:02 amIAD-EYW
16h 23m2 stops
Allegiant Air Logo
9:50 am - 8:46 pmEYW-IAD
10h 56m1 stop
$296Allegiant Air
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Fri, Oct 17 - Mon, Oct 20
United Airlines Logo
7:00 am - 2:13 pmDCA-EYW
7h 13m1 stop
United Airlines Logo
2:05 pm - 9:52 pmEYW-DCA
7h 47m1 stop
$297United Airlines
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Sun, Jan 4 - Fri, Jan 9
United Airlines Logo
6:00 am - 2:13 pmIAD-EYW
8h 13m1 stop
United Airlines Logo
2:05 pm - 9:13 pmEYW-IAD
7h 08m1 stop
$297United Airlines
Find Deal
Sun, Jan 4 - Fri, Jan 9

American Airlines flights from District of Columbia to Key West

Our best American Airlines deals on District of Columbia to Key West flight tickets
American Airlines
Oct 31
DCA9:59 amWashington, D.C. Reagan-National
2h 59m
EYW12:58 pmKey West
Nov 3
EYW5:31 pmKey West
2h 55m
DCA8:26 pmWashington, D.C. Reagan-National
$279
Find similar
American Airlines
Oct 24
DCA9:59 amWashington, D.C. Reagan-National
2h 59m
EYW12:58 pmKey West
Oct 31
EYW1:38 pmKey West
2h 42m
DCA4:20 pmWashington, D.C. Reagan-National
$294
Find similar
American Airlines
Jan 17
DCA5:58 pmWashington, D.C. Reagan-National
5h 58m
1 stop
EYW11:56 pmKey West
Jan 24
EYW5:35 pmKey West
2h 48m
DCA8:23 pmWashington, D.C. Reagan-National
$295
Find similar

Delta flights from District of Columbia to Key West

Our best Delta deals on District of Columbia to Key West flight tickets
Delta
Oct 22
DCA12:31 pmWashington, D.C. Reagan-National
7h 35m
1 stop
EYW8:06 pmKey West
Oct 30
EYW1:57 pmKey West
4h 36m
1 stop
DCA6:33 pmWashington, D.C. Reagan-National
$284
Find similar
Delta
Dec 13
DCA1:52 pmWashington, D.C. Reagan-National
6h 14m
1 stop
EYW8:06 pmKey West
Dec 16
EYW6:10 pmKey West
5h 30m
1 stop
DCA11:40 pmWashington, D.C. Reagan-National
$289
Find similar
Delta
Feb 11
IAD1:00 pmWashington, D.C. Dulles Intl
6h 44m
1 stop
EYW7:44 pmKey West
Feb 18
EYW2:35 pmKey West
6h 38m
1 stop
IAD9:13 pmWashington, D.C. Dulles Intl
$295
Find similar

momondo Fare Finder

 
Customize your flight search to find flights from District of Columbia to Key West 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 October 7, 2025.
Use the filters below to find and compare flights from District of Columbia to Key West that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Washington, D.C.Key West

DCA - EYW

DCAEYW

Washington, D.C. Reagan-National

Fri 10/31

9:59 am-12:58 pm

Nonstop2h 59m

Key West

Mon 11/3

5:31 pm-8:26 pm

Nonstop2h 55m

$279

Washington, D.C.Key West

IAD - EYW

IADEYW

Washington, D.C. Dulles Intl

Thu 11/6

9:52 pm-8:11 am

1 stop10h 19m

Key West

Sun 11/9

8:36 pm-4:34 pm

2 stops19h 58m

$281

Washington, D.C.Key West

IAD - EYW

IADEYW

Washington, D.C. Dulles Intl

Fri 10/24

8:53 pm-10:07 am

1 stop13h 14m

Key West

Tue 10/28

11:45 am-8:20 pm

2 stops32h 35m

$283

Washington, D.C.Key West

DCA - EYW

DCAEYW

Washington, D.C. Reagan-National

Wed 10/22

12:31 pm-8:06 pm

1 stop7h 35m

Key West

Thu 10/30

1:57 pm-6:33 pm

1 stop4h 36m

$284

Washington, D.C.Key West

IAD - EYW

IADEYW

Washington, D.C. Dulles Intl

Wed 10/22

12:27 pm-8:06 pm

1 stop7h 39m

Key West

Thu 10/30

6:17 pm-11:20 pm

1 stop5h 03m

$284

Washington, D.C.Key West

IAD - EYW

IADEYW

Washington, D.C. Dulles Intl

Sun 12/21

8:16 pm-1:43 pm

1 stop17h 27m

Key West

Tue 12/30

3:15 pm-1:45 pm

2 stops22h 30m

$287

Washington, D.C.Key West

DCA - EYW

DCAEYW

Washington, D.C. Reagan-National

Sat 12/13

1:52 pm-8:06 pm

1 stop6h 14m

Key West

Tue 12/16

6:10 pm-11:40 pm

1 stop5h 30m

$289

Washington, D.C.Key West

IAD - EYW

IADEYW

Washington, D.C. Dulles Intl

Fri 10/17

4:39 pm-9:02 am

2 stops16h 23m

Key West

Mon 10/20

9:50 am-8:46 pm

1 stop10h 56m

$296

Washington, D.C.Key West

DCA - EYW

DCAEYW

Washington, D.C. Reagan-National

Sun 1/4

7:00 am-2:13 pm

1 stop7h 13m

Key West

Fri 1/9

2:05 pm-9:52 pm

1 stop7h 47m

$297

Washington, D.C.Key West

IAD - EYW

IADEYW

Washington, D.C. Dulles Intl

Sun 1/4

6:00 am-2:13 pm

1 stop8h 13m

Key West

Fri 1/9

2:05 pm-9:13 pm

1 stop7h 08m

$297

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 Key West from

How to get the cheapest flight ticket from District of Columbia to Key West

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 Key West?

In general, January is the cheapest month to fly from District of Columbia to Key West. Due to it being the ‘off-season’ during this time, you can expect flight prices to be around $369. If you are unable to visit Key West during the month of January, then departing from District of Columbia during the month September is also very affordable. Most momondo users find prices during this month for around $374.

What is the cheapest day to depart on your flight to Key West?

On average, the least expensive day to fly to Key West from District of Columbia is on a Tuesday. momondo users have found tickets for Tuesday departures for as low as $365. However, this price may fluctuate depending on the airline, the season, and holidays. When flying out on a Thursday, the most expensive travel day of the week, you can expect to see flight prices from District of Columbia to Key West for around $527.

What is the cheapest time of day to depart on your flight to Key West?

According to our data, the cheapest time of day to fly to Key West is in the afternoon. momondo users have found flights departing from District of Columbia to Key West in the afternoon for as low as $340. Keep in mind that these prices may fluctuate based on what airline you choose and the time of year you plan to travel. Flights to Key West are more costly in the evening, with an average ticket price of $559. Departure times in the evening fall within the peak daily travel times, which is why tickets can be more expensive.

What is the cheapest District of Columbia to Key West flight route?

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

How far in advance should I book a flight to Key West?

You are more likely to see cheaper flights to Key West from District of Columbia when booking weeks ahead of your departure date. In general, you can expect to find flights to Key West for around $484 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Key West from District of Columbia for as low as $364 on momondo.

What cabin class options are available on District of Columbia to Key West flights?

There are 3 cabin classes available to choose from on District of Columbia to Key West 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 Key West flights?

You could potentially save up to 33% on your flight if you consider stops on a District of Columbia to Key West flight.

Cheap District of Columbia to Key West flight deals and tips

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

Best Price Found

$258

Fastest flight time

2h 56m

Direct flights

Every day

Airports in Key West

1 airport
The best one-way flight to Key West from District of Columbia in the past 72 hours is $258. The best round-trip flight deal from District of Columbia to Key West found on momondo in the last 72 hours is $333.
The fastest flight from District of Columbia to Key West takes 2h 56m
Direct flights go from District of Columbia to Key West every day.
There is 1 airport near Key West: Key West (EYW)
Search flight deals

  • When did momondo last update prices for flights from District of Columbia to Key West Airport?

    Prices for flights from District of Columbia to Key West Airport are refreshed on a daily basis.

  • How many operators does momondo search for flights from District of Columbia to Key West Airport?

  • How old do you have to be to fly from District of Columbia to Key West Airport?

    The minimum age for a child to fly alone is five, but airlines offering an unaccompanied minor (UNMR) service may have their age restrictions, such as regulations concerning flight duration, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from District of Columbia to Key West Airport.

  • What documentation or ID do you need to fly to Key West Airport?

    The necessary travel and health documents for your Key West Airport 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 District of Columbia to Key West?

Best airlines flying from District of Columbia to Key West

Compare and see reviews for airlines that fly from District of Columbia to Key West with momondo
Airline
Rating
Free Cancellation
Price
Spirit AirlinesPriceFrom $105Free CancellationRating
6.3
8,080 reviews
Search Spirit Airlines flights
DeltaPriceFrom $117Free CancellationRating
7.9
7,969 reviews
Search Delta flights
United AirlinesPriceFrom $186Free CancellationRating
7.4
8,957 reviews
Search United Airlines flights
American AirlinesPriceFrom $258Free CancellationRating
7.2
11,041 reviews
Search American Airlines flights

Traveling to a place near Key West?

Book flights to Key West if you plan to visit one of these locations
Big Pine Key
Little Torch Key

Why use momondo?

Why should I use momondo to find a flight deal from District of Columbia to Key West?

momondo collates all your flight options in one place and lets you filter them to find the perfect flight from District of Columbia to Key West. momondo saves you time and could save you money on your trip.

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

Yes. All flights to Key West from District of Columbia on momondo can be compared and filtered by various policies on offer, including flexible booking.

How can momondo help me find flights from District of Columbia to Key West?

momondo offers useful filters to help you find the right flight. Choose specific flight times, airports or even what payment method you prefer. We have numerous options to help you book your ideal flight from District of Columbia to Key West.

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

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

An easier way to manage your Key West trip

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