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Cheap flights from Washington, D.C. Reagan-National Airport to Key West from $191

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Washington, D.C. Reagan-National Airport to Key West departing on 8/29. 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
1 adult, Economy, 0 bags

Discover deals from 900+ travel sites with momondo.

Find the cheapest flights from Washington, D.C. Reagan-National Airport to Key West

Cheap round-trip flights

Enter your travel dates to find the best prices.
Delta Logo
2:00 pm - 8:01 pm
DCA
-
EYW
6h 01m
1 stop
Delta Logo
2:00 pm - 9:46 pm
EYW
-
DCA
7h 46m
1 stop
$309Delta
Sat, Oct 3 - Wed, Oct 7
Delta Logo
6:00 am - 10:58 am
DCA
-
EYW
4h 58m
1 stop
Delta Logo
7:00 am - 2:38 pm
EYW
-
DCA
7h 38m
1 stop
$334Delta
Tue, Nov 10 - Tue, Nov 17
Delta Logo
12:27 pm - 7:51 pm
DCA
-
EYW
7h 24m
1 stop
Delta Logo
1:59 pm - 8:31 am
EYW
-
DCA
18h 32m
2 stops
$353Delta
Wed, Jul 29 - Tue, Aug 4
Delta Logo
7:58 am - 7:57 pm
DCA
-
EYW
11h 59m
2 stops
Delta Logo
1:59 pm - 7:34 pm
EYW
-
DCA
5h 35m
1 stop
$355Delta
Wed, Aug 26 - Thu, Sep 3
Delta Logo
6:00 am - 10:50 am
DCA
-
EYW
4h 50m
1 stop
Delta Logo
1:31 pm - 7:34 pm
EYW
-
DCA
6h 03m
1 stop
$356Delta
Wed, Aug 12 - Sat, Aug 15
Delta Logo
1:42 pm - 7:51 pm
DCA
-
EYW
6h 09m
1 stop
Delta Logo
4:00 pm - 8:47 pm
EYW
-
DCA
4h 47m
1 stop
$359Delta
Thu, Jul 16 - Sat, Jul 18
Delta Logo
12:27 pm - 7:57 pm
DCA
-
EYW
7h 30m
1 stop
Delta Logo
6:15 pm - 11:48 pm
EYW
-
DCA
5h 33m
1 stop
$364Delta
Fri, Aug 7 - Tue, Aug 11
American Airlines Logo
10:30 am - 1:51 pm
DCA
-
EYW
3h 21mnonstop
American Airlines Logo
12:54 pm - 3:51 pm
EYW
-
DCA
2h 57mnonstop
$383American Airlines
Sat, Oct 3 - Wed, Oct 7
American Airlines Logo
8:20 am - 11:36 am
DCA
-
EYW
3h 16mnonstop
American Airlines Logo
12:06 pm - 3:08 pm
EYW
-
DCA
3h 02mnonstop
$384American Airlines
Tue, Aug 18 - Tue, Aug 25
American Airlines Logo
11:47 am - 7:17 pm
DCA
-
EYW
7h 30m
1 stop
American Airlines Logo
12:54 pm - 3:51 pm
EYW
-
DCA
2h 57mnonstop
$393American Airlines
Sat, Oct 3 - Wed, Oct 7

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Delta flights from Washington, D.C. Reagan-National Airport to Key West

Our best Delta deals on Washington, D.C. Reagan-National Airport to Key West flight tickets
Delta
Oct 3
DCA2:00 pmWashington, D.C. Reagan-National
6h 01m
1 stop
EYW8:01 pmKey West
Oct 7
EYW2:00 pmKey West
7h 46m
1 stop
DCA9:46 pmWashington, D.C. Reagan-National
$309
Delta
Nov 10
DCA6:00 amWashington, D.C. Reagan-National
4h 58m
1 stop
EYW10:58 amKey West
Nov 17
EYW7:00 amKey West
7h 38m
1 stop
DCA2:38 pmWashington, D.C. Reagan-National
$334
Delta
Jul 29
DCA12:27 pmWashington, D.C. Reagan-National
7h 24m
1 stop
EYW7:51 pmKey West
Aug 4
EYW1:59 pmKey West
18h 32m
2 stops
DCA8:31 amWashington, D.C. Reagan-National
$353

United Airlines flights from Washington, D.C. Reagan-National Airport to Key West

Our best United Airlines deals on Washington, D.C. Reagan-National Airport to Key West flight tickets
United Airlines
Nov 8
DCA6:00 amWashington, D.C. Reagan-National
7h 59m
1 stop
EYW1:59 pmKey West
Nov 12
EYW2:55 pmKey West
7h 36m
1 stop
DCA10:31 pmWashington, D.C. Reagan-National
$397
United Airlines
Nov 15
DCA6:00 amWashington, D.C. Reagan-National
7h 59m
1 stop
EYW1:59 pmKey West
Nov 19
EYW2:55 pmKey West
7h 36m
1 stop
DCA10:31 pmWashington, D.C. Reagan-National
$417
United Airlines
Jul 30
DCA6:00 amWashington, D.C. Reagan-National
7h 30m
1 stop
EYW1:30 pmKey West
Aug 3
EYW2:26 pmKey West
7h 27m
1 stop
DCA9:53 pmWashington, D.C. Reagan-National
$431

momondo Fare Finder

 
Customize your flight search to find flights from Washington, D.C. Reagan-National Airport 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 July 4, 2026.
Use the filters below to find and compare flights from Washington, D.C. Reagan-National Airport to Key West that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

Washington, D.C.Key West

DCA - EYW

DCAEYW

Washington, D.C. Reagan-National

Sat 10/3

2:00 pm-8:01 pm

1 stop6h 01m

Key West

Wed 10/7

2:00 pm-9:46 pm

1 stop7h 46m

$309

Washington, D.C.Key West

DCA - EYW

DCAEYW

Washington, D.C. Reagan-National

Tue 11/10

6:00 am-10:58 am

1 stop4h 58m

Key West

Tue 11/17

7:00 am-2:38 pm

1 stop7h 38m

$334

Washington, D.C.Key West

DCA - EYW

DCAEYW

Washington, D.C. Reagan-National

Wed 7/29

12:27 pm-7:51 pm

1 stop7h 24m

Key West

Tue 8/4

1:59 pm-8:31 am

2 stops18h 32m

$353

Washington, D.C.Key West

DCA - EYW

DCAEYW

Washington, D.C. Reagan-National

Wed 8/26

7:58 am-7:57 pm

2 stops11h 59m

Key West

Thu 9/3

1:59 pm-7:34 pm

1 stop5h 35m

$355

Washington, D.C.Key West

DCA - EYW

DCAEYW

Washington, D.C. Reagan-National

Wed 8/12

6:00 am-10:50 am

1 stop4h 50m

Key West

Sat 8/15

1:31 pm-7:34 pm

1 stop6h 03m

$356

Washington, D.C.Key West

DCA - EYW

DCAEYW

Washington, D.C. Reagan-National

Thu 7/16

1:42 pm-7:51 pm

1 stop6h 09m

Key West

Sat 7/18

4:00 pm-8:47 pm

1 stop4h 47m

$359

Washington, D.C.Key West

DCA - EYW

DCAEYW

Washington, D.C. Reagan-National

Fri 8/7

12:27 pm-7:57 pm

1 stop7h 30m

Key West

Tue 8/11

6:15 pm-11:48 pm

1 stop5h 33m

$364
Quickest round-trip

Washington, D.C.Key West

DCA - EYW

DCAEYW

Washington, D.C. Reagan-National

Sat 10/3

10:30 am-1:51 pm

Nonstop3h 21m

Key West

Wed 10/7

12:54 pm-3:51 pm

Nonstop2h 57m

$383

Washington, D.C.Key West

DCA - EYW

DCAEYW

Washington, D.C. Reagan-National

Tue 8/18

8:20 am-11:36 am

Nonstop3h 16m

Key West

Tue 8/25

12:06 pm-3:08 pm

Nonstop3h 02m

$384

Washington, D.C.Key West

DCA - EYW

DCAEYW

Washington, D.C. Reagan-National

Sat 10/3

11:47 am-7:17 pm

1 stop7h 30m

Key West

Wed 10/7

12:54 pm-3:51 pm

Nonstop2h 57m

$393

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 Washington, D.C. Reagan-National Airport 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 typical price of a round-trip flight between Washington, D.C. Reagan-National Airport and Key West?

What is the cheapest month to fly to Key West?

In general, January is the cheapest month to fly from Washington, D.C. Reagan-National Airport to Key West. Due to it being the ‘off-season’ during this time, you can expect flight prices to be around $374. If you are unable to visit Key West during the month of January, then departing from Washington, D.C. Reagan-National Airport during the month September is also very affordable. Most momondo users find prices during this month for around $399.

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 Washington, D.C. Reagan-National Airport is on a Tuesday. momondo users have found tickets for Tuesday departures for as low as $380. However, this price may fluctuate depending on the airline, the season, and holidays. When flying out on a Sunday, the most expensive travel day of the week, you can expect to see flight prices from Washington, D.C. Reagan-National Airport to Key West for around $489.

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 at noon. momondo users have found flights departing from Washington, D.C. Reagan-National Airport to Key West at noon for as low as $400. 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 morning, with an average ticket price of $465. Departure times in the morning fall within the peak daily travel times, which is why tickets can be more expensive.

What is the cheapest Washington, D.C. Reagan-National to Key West flight route?

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

How far in advance should I book a flight from Washington, D.C. Reagan-National Airport to Key West?

You are more likely to see cheaper flights to Key West from Washington, D.C. Reagan-National Airport when booking weeks ahead of your departure date. In general, you can expect to find flights to Key West for around $458 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Key West from Washington, D.C. Reagan-National Airport for as low as $368 on momondo.

What cabin class options are available on Washington, D.C. Reagan-National Airport to Key West flights?

There are 3 cabin classes available to choose from on Washington, D.C. Reagan-National Airport 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 Washington, D.C. Reagan-National Airport to Key West flights?

You could potentially save up to 22% on your flight if you consider stops on a Washington, D.C. Reagan-National Airport to Key West flight.

How have Washington, D.C. Reagan-National Airport to Key West flight prices changed over time?

When to book flights from Washington, D.C. Reagan-National Airport to Key West

Are you open to changing your travel dates? Check out the ideal times to fly from Washington, D.C. Reagan-National Airport to Key West according to our flight data. Find out which month and days have the cheapest flights.
Estimated round-trip price

Cheap Washington, D.C. Reagan-National Airport to Key West (DCA to EYW) flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Washington, D.C. Reagan-National Airport to Key West

Best Price Found

$397

Fastest flight time

3h 00m

Direct flights

Every day

Airports in Key West

1 airport
The best one-way flight to Key West from Washington, D.C. Reagan-National Airport in the past 72 hours is $397. The best round-trip flight deal from Washington, D.C. Reagan-National Airport to Key West found on momondo in the last 72 hours is $483.
The fastest flight from Washington, D.C. Reagan-National Airport to Key West takes 3h 00m
Direct flights go from Washington, D.C. Reagan-National Airport to Key West every day.
There is 1 airport in Key West. From Washington, D.C. Reagan-National Airport there are direct flights to Key West (EYW).
Search flight deals

Frequently asked questions about flying from Washington, D.C. Reagan-National Airport to Key West

  • How far is Washington, D.C. Reagan-National to Key West by plane?

    The straight-line distance from Washington, D.C. Reagan-National to Key West is 1025.6 mi. In terms of flight time, this usually takes a little over 3h 00m.

  • When did momondo last update prices for flights from Washington, D.C. Reagan-National Airport to Key West Airport?

    Prices for flights from Washington, D.C. Reagan-National Airport to Key West Airport refresh daily.

  • How many operators does momondo search for flights from Washington, D.C. Reagan-National Airport to Key West Airport?

  • How old do you have to be to fly from Washington, D.C. Reagan-National Airport 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 Washington, D.C. Reagan-National Airport to Key West Airport.

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

    The required travel and health documents for your Key West Airport 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 Key West Airport. 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 Washington, D.C. Reagan-National Airport to Key West?

  • What is the most popular airline from Washington, D.C. Reagan-National Airport to Key West?

Best airlines flying from Washington, D.C. Reagan-National Airport to Key West

Compare and see reviews for airlines that fly from Washington, D.C. Reagan-National Airport to Key West with momondo
Airline
Rating
Free Cancellation
Price
DeltaPriceFrom $248Free CancellationRating
7.8
8,454 reviews
Search Delta flights
American AirlinesPriceFrom $258Free CancellationRating
7.1
11,765 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 Washington, D.C. to Key West?

To find the flight that best suits your needs, momondo gathers a range of flights from a large pool of different airlines and agents; you can then use our insights and filters to find and book the right flight to Key West from Washington, D.C..

Can I find flights from Washington, D.C. to Key West with flexible booking policies on momondo?

Yes. momondo enables you to select and highlight flights to Key West from Washington, D.C. with this policy.

How can momondo help me find flights from Washington, D.C. to Key West?

Once all potential Washington, D.C. to Key West 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 Washington, D.C. to Key West right now. Can momondo alert me if prices change?

Of course. momondo tracks the price of Washington, D.C. to Key West flights. All you need is a valid email address and we will do the rest; it is that quick and easy.

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