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Cheap flights from Washington, D.C. 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 Washington, D.C. to Key West departing on 10/3. 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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Find the cheapest flights from Washington, D.C. to Key West

Cheap round-trip flights

Logo
4:24 pm - 2:40 pmBWI-EYW
22h 16m1 stop
Logo
8:55 am - 8:34 amEYW-BWI
23h 39m1 stop
$195
Find Deal
Sat, Oct 4 - Thu, Oct 9
Logo
9:52 pm - 8:15 amBWI-EYW
10h 23m1 stop
Logo
8:55 am - 9:21 amEYW-BWI
24h 26m1 stop
$207
Find Deal
Sun, Oct 5 - Fri, Oct 10
Logo
6:26 pm - 8:15 amBWI-EYW
13h 49m1 stop
Logo
8:55 am - 8:50 amEYW-BWI
23h 55m1 stop
$217
Find Deal
Thu, Dec 4 - Mon, Dec 8
American Airlines Logo
12:03 pm - 5:16 pmBWI-EYW
5h 13m1 stop
American Airlines Logo
1:23 pm - 6:28 pmEYW-BWI
5h 05m1 stop
$259American Airlines
Find Deal
Fri, Oct 31 - Wed, Nov 5
Spirit Airlines Logo
5:10 am - 1:30 pmBWI-EYW
8h 20m1 stop
Spirit Airlines Logo
2:25 pm - 11:54 pmEYW-BWI
9h 29m1 stop
$261Spirit Airlines
Find Deal
Thu, Nov 13 - Sun, Nov 16
American Airlines Logo
11:11 am - 4:07 pmBWI-EYW
4h 56m1 stop
American Airlines Logo
4:18 pm - 11:35 pmEYW-BWI
7h 17m2 stops
$264American Airlines
Find Deal
Wed, Oct 29 - Tue, Nov 4
United Airlines Logo
6:15 am - 2:29 pmIAD-EYW
8h 14m1 stop
United Airlines Logo
3:11 pm - 11:07 pmEYW-IAD
7h 56m1 stop
$270United Airlines
Find Deal
Tue, Sep 30 - Sat, Oct 4
United Airlines Logo
6:00 am - 1:02 pmDCA-EYW
7h 02m1 stop
United Airlines Logo
1:30 pm - 7:33 pmEYW-DCA
6h 03m1 stop
$271United Airlines
Find Deal
Tue, Jan 27 - Tue, Feb 3
Delta Logo
2:10 pm - 7:44 pmBWI-EYW
5h 34m1 stop
Delta Logo
2:35 pm - 7:45 pmEYW-BWI
5h 10m1 stop
$283Delta
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Wed, Jan 28 - Tue, Feb 3
Delta Logo
6:00 am - 12:48 pmDCA-EYW
6h 48m1 stop
Delta Logo
2:35 pm - 9:13 pmEYW-DCA
6h 38m1 stop
$289Delta
Find Deal
Sat, Feb 7 - Thu, Feb 12

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
Oct 31
BWI12:03 pmBaltimore/Washington
5h 13m
1 stop
EYW5:16 pmKey West
Nov 5
EYW1:23 pmKey West
5h 05m
1 stop
BWI6:28 pmBaltimore/Washington
$259
Find similar
American Airlines
Oct 29
BWI11:11 amBaltimore/Washington
4h 56m
1 stop
EYW4:07 pmKey West
Nov 4
EYW4:18 pmKey West
7h 17m
2 stops
BWI11:35 pmBaltimore/Washington
$264
Find similar
American Airlines
Nov 5
BWI8:00 amBaltimore/Washington
9h 01m
2 stops
EYW5:01 pmKey West
Nov 12
EYW4:18 pmKey West
7h 17m
2 stops
BWI11:35 pmBaltimore/Washington
$269
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
Jan 28
BWI2:10 pmBaltimore/Washington
5h 34m
1 stop
EYW7:44 pmKey West
Feb 3
EYW2:35 pmKey West
5h 10m
1 stop
BWI7:45 pmBaltimore/Washington
$283
Find similar
Delta
Nov 5
IAD12:27 pmWashington, D.C. Dulles Intl
7h 39m
1 stop
EYW8:06 pmKey West
Nov 12
EYW6:18 pmKey West
5h 01m
1 stop
IAD11:19 pmWashington, D.C. Dulles Intl
$289
Find similar
Delta
Oct 1
IAD12:35 pmWashington, D.C. Dulles Intl
7h 32m
1 stop
EYW8:07 pmKey West
Oct 8
EYW6:17 pmKey West
5h 01m
1 stop
IAD11:18 pmWashington, D.C. Dulles Intl
$294
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 September 11, 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

Sat 10/4

4:24 pm-2:40 pm

1 stop22h 16m

Key West

Thu 10/9

8:55 am-8:34 am

1 stop23h 39m

$195

BaltimoreKey West

BWI - EYW

BWIEYW

Baltimore/Washington

Sun 10/5

9:52 pm-8:15 am

1 stop10h 23m

Key West

Fri 10/10

8:55 am-9:21 am

1 stop24h 26m

$207

BaltimoreKey West

BWI - EYW

BWIEYW

Baltimore/Washington

Thu 12/4

6:26 pm-8:15 am

1 stop13h 49m

Key West

Mon 12/8

8:55 am-8:50 am

1 stop23h 55m

$217

BaltimoreKey West

BWI - EYW

BWIEYW

Baltimore/Washington

Fri 10/31

12:03 pm-5:16 pm

1 stop5h 13m

Key West

Wed 11/5

1:23 pm-6:28 pm

1 stop5h 05m

$259

BaltimoreKey West

BWI - EYW

BWIEYW

Baltimore/Washington

Thu 11/13

5:10 am-1:30 pm

1 stop8h 20m

Key West

Sun 11/16

2:25 pm-11:54 pm

1 stop9h 29m

$261

BaltimoreKey West

BWI - EYW

BWIEYW

Baltimore/Washington

Wed 10/29

11:11 am-4:07 pm

1 stop4h 56m

Key West

Tue 11/4

4:18 pm-11:35 pm

2 stops7h 17m

$264

Washington, D.C.Key West

IAD - EYW

IADEYW

Washington, D.C. Dulles Intl

Tue 9/30

6:15 am-2:29 pm

1 stop8h 14m

Key West

Sat 10/4

3:11 pm-11:07 pm

1 stop7h 56m

$270

Washington, D.C.Key West

DCA - EYW

DCAEYW

Washington, D.C. Reagan-National

Tue 1/27

6:00 am-1:02 pm

1 stop7h 02m

Key West

Tue 2/3

1:30 pm-7:33 pm

1 stop6h 03m

$271

BaltimoreKey West

BWI - EYW

BWIEYW

Baltimore/Washington

Wed 1/28

2:10 pm-7:44 pm

1 stop5h 34m

Key West

Tue 2/3

2:35 pm-7:45 pm

1 stop5h 10m

$283

Washington, D.C.Key West

DCA - EYW

DCAEYW

Washington, D.C. Reagan-National

Sat 2/7

6:00 am-12:48 pm

1 stop6h 48m

Key West

Thu 2/12

2:35 pm-9:13 pm

1 stop6h 38m

$289

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
1
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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 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 September is also very affordable. Most momondo users find prices during this month for around $378.

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 $539.

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 $488 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 September 2025, prices for Washington, D.C. to Key West flights are approximately 74% 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

$288

Fastest flight time

2h 56m

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 $288. The best round-trip flight deal from Washington, D.C. to Key West found on momondo in the last 72 hours is $333.
The fastest flight from Washington, D.C. to Key West takes 2h 56m
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 56m.

  • 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 $117Free CancellationRating
7.9
7,960 reviews
Search Delta flights
United AirlinesPriceFrom $186Free CancellationRating
7.4
8,937 reviews
Search United Airlines flights
American AirlinesPriceFrom $257Free 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 $257 round-trip. Over the 6 American Airlines flights for this route in a normal week, average airfare is usually $465 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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