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Cheap flights from Washington, D.C. to Key West from $100

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 11/24. 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

Logo
10:21 am - 8:46 pmBWI-EYW
10h 25m1 stop
Logo
9:36 pm - 8:34 amEYW-BWI
10h 58m1 stop
$228
Find Deal
Sun, Nov 9 - Thu, Nov 13
Logo
6:38 am - 4:00 pmBWI-EYW
9h 22m1 stop
Logo
9:52 am - 12:22 pmEYW-BWI
26h 30m1 stop
$237
Find Deal
Thu, Sep 11 - Sat, Sep 13
Spirit Airlines Logo
5:10 am - 1:30 pmBWI-EYW
8h 20m1 stop
Spirit Airlines Logo
2:25 pm - 7:17 pmEYW-BWI
4h 52m1 stop
$243Spirit Airlines
Find Deal
Thu, Dec 4 - Mon, Dec 8
Spirit Airlines Logo
5:10 am - 1:30 pmBWI-EYW
8h 20m1 stop
Spirit Airlines Logo
2:25 pm - 7:17 pmEYW-BWI
4h 52m1 stop
$245Spirit Airlines
Find Deal
Fri, Dec 12 - Mon, Dec 15
Delta Logo
1:50 pm - 8:07 pmBWI-EYW
6h 17m1 stop
Delta Logo
7:40 am - 12:45 pmEYW-BWI
5h 05m1 stop
$259Delta
Find Deal
Wed, Oct 1 - Tue, Oct 7
American Airlines Logo
11:04 am - 6:59 pmBWI-EYW
7h 55m2 stops
American Airlines Logo
7:31 pm - 11:59 pmEYW-BWI
4h 28m1 stop
$264American Airlines
Find Deal
Sat, Sep 27 - Sat, Oct 4
Delta Logo
1:40 pm - 8:12 pmDCA-EYW
6h 32m1 stop
Delta Logo
11:50 am - 7:30 pmEYW-DCA
7h 40m1 stop
$264Delta
Find Deal
Wed, Sep 10 - Tue, Sep 16
American Airlines Logo
8:00 am - 7:23 pmBWI-EYW
11h 23m2 stops
American Airlines Logo
4:18 pm - 11:35 pmEYW-BWI
7h 17m2 stops
$269American Airlines
Find Deal
Wed, Nov 5 - Wed, Nov 12
United Airlines Logo
6:00 am - 2:06 pmIAD-EYW
8h 06m1 stop
United Airlines Logo
3:02 pm - 9:21 pmEYW-IAD
6h 19m1 stop
$297United Airlines
Find Deal
Tue, Dec 2 - Thu, Dec 4
United Airlines Logo
6:20 am - 2:11 pmIAD-EYW
7h 51m1 stop
United Airlines Logo
3:50 pm - 10:39 pmEYW-IAD
6h 49m1 stop
$311United Airlines
Find Deal
Sat, Sep 6 - Thu, Sep 11

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

Our best American Airlines deals on Washington, D.C. to Key West flight tickets
American Airlines
Sep 27
BWI11:04 amBaltimore/Washington
7h 55m
2 stops
EYW6:59 pmKey West
Oct 4
EYW7:31 pmKey West
4h 28m
1 stop
BWI11:59 pmBaltimore/Washington
$264
Find similar
American Airlines
Nov 5
BWI8:00 amBaltimore/Washington
11h 23m
2 stops
EYW7:23 pmKey West
Nov 12
EYW4:18 pmKey West
7h 17m
2 stops
BWI11:35 pmBaltimore/Washington
$269
Find similar
American Airlines
Sep 28
BWI5:00 amBaltimore/Washington
7h 05m
1 stop
EYW12:05 pmKey West
Oct 4
EYW7:31 pmKey West
4h 28m
1 stop
BWI11:59 pmBaltimore/Washington
$271
Find similar

Delta flights from Washington, D.C. to Key West

Our best Delta deals on Washington, D.C. to Key West flight tickets
Delta
Oct 1
BWI1:50 pmBaltimore/Washington
6h 17m
1 stop
EYW8:07 pmKey West
Oct 7
EYW7:40 amKey West
5h 05m
1 stop
BWI12:45 pmBaltimore/Washington
$259
Find similar
Delta
Sep 10
DCA1:40 pmWashington, D.C. Reagan-National
6h 32m
1 stop
EYW8:12 pmKey West
Sep 16
EYW11:50 amKey West
7h 40m
1 stop
DCA7:30 pmWashington, D.C. Reagan-National
$264
Find similar
Delta
Sep 6
IAD12:39 pmWashington, D.C. Dulles Intl
7h 33m
1 stop
EYW8:12 pmKey West
Sep 13
EYW6:10 pmKey West
5h 07m
1 stop
IAD11:17 pmWashington, D.C. Dulles Intl
$273
Find similar

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 August 26, 2025.
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

Sun 11/9

10:21 am-8:46 pm

1 stop10h 25m

Key West

Thu 11/13

9:36 pm-8:34 am

1 stop10h 58m

$228

BaltimoreKey West

BWI - EYW

BWIEYW

Baltimore/Washington

Thu 9/11

6:38 am-4:00 pm

1 stop9h 22m

Key West

Sat 9/13

9:52 am-12:22 pm

1 stop26h 30m

$237

BaltimoreKey West

BWI - EYW

BWIEYW

Baltimore/Washington

Thu 12/4

5:10 am-1:30 pm

1 stop8h 20m

Key West

Mon 12/8

2:25 pm-7:17 pm

1 stop4h 52m

$243

BaltimoreKey West

BWI - EYW

BWIEYW

Baltimore/Washington

Fri 12/12

5:10 am-1:30 pm

1 stop8h 20m

Key West

Mon 12/15

2:25 pm-7:17 pm

1 stop4h 52m

$245

BaltimoreKey West

BWI - EYW

BWIEYW

Baltimore/Washington

Wed 10/1

1:50 pm-8:07 pm

1 stop6h 17m

Key West

Tue 10/7

7:40 am-12:45 pm

1 stop5h 05m

$259

BaltimoreKey West

BWI - EYW

BWIEYW

Baltimore/Washington

Sat 9/27

11:04 am-6:59 pm

2 stops7h 55m

Key West

Sat 10/4

7:31 pm-11:59 pm

1 stop4h 28m

$264

Washington, D.C.Key West

DCA - EYW

DCAEYW

Washington, D.C. Reagan-National

Wed 9/10

1:40 pm-8:12 pm

1 stop6h 32m

Key West

Tue 9/16

11:50 am-7:30 pm

1 stop7h 40m

$264

BaltimoreKey West

BWI - EYW

BWIEYW

Baltimore/Washington

Wed 11/5

8:00 am-7:23 pm

2 stops11h 23m

Key West

Wed 11/12

4:18 pm-11:35 pm

2 stops7h 17m

$269

Washington, D.C.Key West

IAD - EYW

IADEYW

Washington, D.C. Dulles Intl

Tue 12/2

6:00 am-2:06 pm

1 stop8h 06m

Key West

Thu 12/4

3:02 pm-9:21 pm

1 stop6h 19m

$297

Washington, D.C.Key West

IAD - EYW

IADEYW

Washington, D.C. Dulles Intl

Sat 9/6

6:20 am-2:11 pm

1 stop7h 51m

Key West

Thu 9/11

3:50 pm-10:39 pm

1 stop6h 49m

$311

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, January 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 $369. If you are unable to visit Key West during the month of January, then departing from Washington, D.C. during the month November is also very affordable. Most momondo users find prices during this month for around $413.

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 $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 Washington, D.C. to Key West for around $542.

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 Washington, D.C. 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 Washington, D.C. to Key West flight route?

Fly from Washington, D.C. Dulles Intl 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 $491 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 $374 on momondo.

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

There are 3 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 65% 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 August 2025, prices for Washington, D.C. to Key West flights are approximately 24% 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

$374

Fastest flight time

2h 54m

Direct flights

Every day

Airports in Key West

1 airport
The best flight deal from Washington, D.C. to Key West found on momondo in the last 72 hours is $374
The fastest flight from Washington, D.C. to Key West takes 2h 54m
Direct flights go from Washington, D.C. to Key West every day.
There is 1 airport near Key West: 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 2h 54m.

  • 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
DeltaPriceFrom $175Free CancellationRating
7.9
7,979 reviews
Search Delta flights
United AirlinesPriceFrom $186Free CancellationRating
7.4
8,943 reviews
Search United Airlines flights
American AirlinesPriceFrom $255Free CancellationRating
7.2
10,000 reviews
Search American Airlines flights

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

    American Airlines flight deals from Washington, D.C. to Key West start from $255 round-trip. Over the 3 American Airlines flights for this route in a normal week, average airfare is usually $469 round-trip - but some users have found much cheaper deals with momondo.

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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