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Cheap flights from Washington, D.C. to Key West from $91

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. to Key West departing on 2/19. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
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0 bags

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Find the cheapest flights from Washington, D.C. to Key West

Cheap round-trip flights

Enter your travel dates to find the best prices.
Multiple Airlines Logo
8:25 pm - 3:23 pm
BWI
-
EYW
18h 58m
1 stop
Multiple Airlines Logo
12:40 pm - 10:35 pm
EYW
-
BWI
9h 55m
1 stop
$191Multiple Airlines
Wed, Feb 25 - Wed, Mar 4
Multiple Airlines Logo
7:07 pm - 9:06 am
BWI
-
EYW
13h 59m
1 stop
Multiple Airlines Logo
1:06 pm - 8:19 pm
EYW
-
BWI
7h 13m
1 stop
$193Multiple Airlines
Sat, Feb 21 - Fri, Feb 27
Multiple Airlines Logo
6:15 am - 2:56 pm
BWI
-
EYW
8h 41m
1 stop
Multiple Airlines Logo
9:46 am - 4:41 pm
EYW
-
BWI
6h 55m
1 stop
$195Multiple Airlines
Sun, Feb 8 - Thu, Feb 19
Multiple Airlines Logo
8:25 pm - 9:06 am
BWI
-
EYW
12h 41m
1 stop
Multiple Airlines Logo
2:25 pm - 8:26 am
EYW
-
BWI
18h 01m
1 stop
$198Multiple Airlines
Wed, Feb 25 - Thu, Mar 5
American Airlines Logo
11:56 am - 6:52 pm
DCA
-
EYW
6h 56m
1 stop
American Airlines Logo
12:09 pm - 3:08 pm
EYW
-
DCA
2h 59mnonstop
$296American Airlines
Wed, Jul 22 - Tue, Jul 28
American Airlines Logo
12:19 pm - 3:26 pm
DCA
-
EYW
3h 07mnonstop
American Airlines Logo
11:57 am - 2:45 pm
EYW
-
DCA
2h 48mnonstop
$297American Airlines
Mon, Mar 23 - Fri, Mar 27
United Airlines Logo
12:50 pm - 4:07 pm
IAD
-
EYW
3h 17mnonstop
United Airlines Logo
6:35 pm - 9:25 pm
EYW
-
IAD
2h 50mnonstop
$297United Airlines
Mon, Feb 23 - Thu, Feb 26
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
$299United Airlines
Tue, Jun 16 - Thu, Jul 2
Delta Logo
6:00 am - 12:42 pm
DCA
-
EYW
6h 42m
1 stop
Delta Logo
6:25 pm - 11:39 pm
EYW
-
DCA
5h 14m
1 stop
$299Delta
Wed, Mar 18 - Tue, Mar 24
Delta Logo
12:05 pm - 7:44 pm
DCA
-
EYW
7h 39m
1 stop
Delta Logo
6:00 pm - 11:23 pm
EYW
-
DCA
5h 23m
1 stop
$304Delta
Mon, Jun 22 - Fri, Jul 3

Spirit Airlines flights from Washington, D.C. to Key West

Our best Spirit Airlines deals on Washington, D.C. to Key West flight tickets
Spirit Airlines
Feb 18
BWI12:30 pmBaltimore/Washington
25h 00m
1 stop
EYW1:30 pmKey West
Feb 23
EYW2:25 pmKey West
18h 41m
1 stop
BWI9:06 amBaltimore/Washington
$209
Spirit Airlines
Feb 26
BWI6:20 amBaltimore/Washington
7h 10m
1 stop
EYW1:30 pmKey West
Mar 5
EYW2:25 pmKey West
4h 36m
1 stop
BWI7:01 pmBaltimore/Washington
$219
Spirit Airlines
Feb 16
BWI6:20 amBaltimore/Washington
7h 10m
1 stop
EYW1:30 pmKey West
Feb 23
EYW2:25 pmKey West
18h 41m
1 stop
BWI9:06 amBaltimore/Washington
$232

United Airlines flights from Washington, D.C. to Key West

Our best United Airlines deals on Washington, D.C. to Key West flight tickets
United Airlines
Feb 23
IAD12:50 pmWashington, D.C. Dulles Intl
3h 17m
EYW4:07 pmKey West
Feb 26
EYW6:35 pmKey West
2h 50m
IAD9:25 pmWashington, D.C. Dulles Intl
$297
United Airlines
Jun 16
IAD6:00 amWashington, D.C. Dulles Intl
7h 02m
1 stop
EYW1:02 pmKey West
Jul 2
EYW2:30 pmKey West
6h 03m
1 stop
IAD8:33 pmWashington, D.C. Dulles Intl
$299
United Airlines
Feb 17
IAD12:50 pmWashington, D.C. Dulles Intl
3h 17m
EYW4:07 pmKey West
Feb 23
EYW6:40 pmKey West
2h 40m
IAD9:20 pmWashington, D.C. Dulles Intl
$304

momondo Fare Finder

 
Customize your flight search to find flights from Washington, D.C. 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 January 29, 2026.
Use the filters below to find and compare flights from Washington, D.C. to Key West that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

BaltimoreKey West

BWI - EYW

BWIEYW

Baltimore/Washington

Wed 2/25

8:25 pm-3:23 pm

1 stop18h 58m

Key West

Wed 3/4

12:40 pm-10:35 pm

1 stop9h 55m

$191

BaltimoreKey West

BWI - EYW

BWIEYW

Baltimore/Washington

Sat 2/21

7:07 pm-9:06 am

1 stop13h 59m

Key West

Fri 2/27

1:06 pm-8:19 pm

1 stop7h 13m

$193

BaltimoreKey West

BWI - EYW

BWIEYW

Baltimore/Washington

Sun 2/8

6:15 am-2:56 pm

1 stop8h 41m

Key West

Thu 2/19

9:46 am-4:41 pm

1 stop6h 55m

$195

BaltimoreKey West

BWI - EYW

BWIEYW

Baltimore/Washington

Wed 2/25

8:25 pm-9:06 am

1 stop12h 41m

Key West

Thu 3/5

2:25 pm-8:26 am

1 stop18h 01m

$198

Washington, D.C.Key West

DCA - EYW

DCAEYW

Washington, D.C. Reagan-National

Wed 7/22

11:56 am-6:52 pm

1 stop6h 56m

Key West

Tue 7/28

12:09 pm-3:08 pm

Nonstop2h 59m

$296

Washington, D.C.Key West

DCA - EYW

DCAEYW

Washington, D.C. Reagan-National

Mon 3/23

12:19 pm-3:26 pm

Nonstop3h 07m

Key West

Fri 3/27

11:57 am-2:45 pm

Nonstop2h 48m

$297

Washington, D.C.Key West

IAD - EYW

IADEYW

Washington, D.C. Dulles Intl

Mon 2/23

12:50 pm-4:07 pm

Nonstop3h 17m

Key West

Thu 2/26

6:35 pm-9:25 pm

Nonstop2h 50m

$297

Washington, D.C.Key West

IAD - EYW

IADEYW

Washington, D.C. Dulles Intl

Tue 6/16

6:00 am-1:02 pm

1 stop7h 02m

Key West

Thu 7/2

2:30 pm-8:33 pm

1 stop6h 03m

$299

Washington, D.C.Key West

DCA - EYW

DCAEYW

Washington, D.C. Reagan-National

Wed 3/18

6:00 am-12:42 pm

1 stop6h 42m

Key West

Tue 3/24

6:25 pm-11:39 pm

1 stop5h 14m

$299

Washington, D.C.Key West

DCA - EYW

DCAEYW

Washington, D.C. Reagan-National

Mon 6/22

12:05 pm-7:44 pm

1 stop7h 39m

Key West

Fri 7/3

6:00 pm-11:23 pm

1 stop5h 23m

$304

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. 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. and Key West?

What is the cheapest month to fly to Key West?

In general, September is the cheapest month to fly from Washington, D.C. 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 September, then departing from Washington, D.C. during the month January is also very affordable. Most momondo users find prices during this month for around $376.

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. is on a Tuesday. momondo users have found tickets for Tuesday departures for as low as $367. 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 Washington, D.C. to Key West for around $524.

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. to Key West at noon for as low as $379. 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 $468. 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. to Key West flight route?

Fly from Washington, D.C. Reagan-National to Key West for the best Washington, D.C. - 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 Washington, D.C. 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. for as low as $342 on momondo.

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

There are 4 cabin classes available to choose from on Washington, D.C. 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. to Key West flights?

You could potentially save up to 48% on your flight if you consider stops on a Washington, D.C. to Key West flight.

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

As of January 2026, prices for Washington, D.C. to Key West flights are approximately 40% cheaper when compared to flights at the same time last year.

When to book flights from Washington, D.C. to Key West

Are you open to changing your travel dates? Check out the ideal times to fly from Washington, D.C. 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. to Key West (WAS to EYW) flight deals and tips

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

Best Price Found

$270

Fastest flight time

3h 02m

Direct flights

Every day

Airports in Key West

1 airport
The best one-way flight to Key West from Washington, D.C. in the past 72 hours is $270. The best round-trip flight deal from Washington, D.C. to Key West found on momondo in the last 72 hours is $323.
The fastest flight from Washington, D.C. to Key West takes 3h 02m
Direct flights go from Washington, D.C. to Key West every day.
There is 1 airport in Key West. From Washington, D.C. there are direct flights to Key West (EYW).
Search flight deals

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

    The straight-line distance from Washington, D.C. to Key West is 1029.2 mi. In terms of flight time, this usually takes a little over 3h 02m.

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

    Prices for flights from Washington, D.C. to Key West Airport are refreshed on a daily basis.

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

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

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

    The travel and health documents you'll need for your trip to Key West Airport may differ based on your itinerary and personal situation. Typically, you should have several documents on hand, such as a national ID card or driver's license and a passport that is valid for six months after your intended arrival at Key West Airport. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.

  • What is the most popular plane model from Washington, D.C. to Key West?

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

Best airlines flying from Washington, D.C. to Key West

Compare and see reviews for airlines that fly from Washington, D.C. to Key West with momondo
Airline
Rating
Free Cancellation
Price
Spirit AirlinesPriceFrom $105Free CancellationRating
6.3
8,394 reviews
Search Spirit Airlines flights
DeltaPriceFrom $175Free CancellationRating
7.9
8,127 reviews
Search Delta flights
United AirlinesPriceFrom $186Free CancellationRating
7.4
9,215 reviews
Search United Airlines flights
American AirlinesPriceFrom $258Free CancellationRating
7.2
11,206 reviews
Search American Airlines flights

  • United Airlines Flights From Washington, D.C. to Key West

    United Airlines flight deals from Washington, D.C. to Key West start from $186 round-trip. Over the 7 United Airlines flights for this route in a normal week, average airfare is usually $389 round-trip - but some users have found much cheaper deals with momondo.

  • American Airlines Flights From Washington, D.C. to Key West

    Another popular option for Washington, D.C. to Key West flights is American Airlines (7.2/10, 11,206 ratings). American Airlines flies from Washington, D.C. to Key West around 13 times per week, with deals starting from $258 round-trip and rising to an average price of around $479.

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?

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

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

Yes. momondo allows you to filter the results for Washington, D.C. to Key West flights to just show those with flexible booking policies.

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

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 Key West from Washington, D.C..

I’m not ready to book a flight from Washington, D.C. to Key West right now. Can momondo alert me if prices change?

Price alerts on flights to Key West from Washington, D.C. 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 Key West trip

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