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Cheap flights from Washington, D.C. to Key West from $90

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 1/7. 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 Washington, D.C. to Key West

Cheap round-trip flights

Enter your travel dates to find the best prices.
Multiple Airlines Logo
9:09 pm - 2:56 pm
BWI
-
EYW
17h 47m1 stop
Multiple Airlines Logo
4:06 pm - 7:23 am
EYW
-
BWI
15h 17m1 stop
$173Multiple Airlines
mié., ene. 7 - mié., ene. 14
Multiple Airlines Logo
1:02 pm - 12:26 pm
BWI
-
EYW
23h 24m1 stop
Multiple Airlines Logo
10:06 am - 3:52 pm
EYW
-
BWI
5h 46m1 stop
$174Multiple Airlines
dom., ene. 11 - jue., ene. 15
Multiple Airlines Logo
1:02 pm - 12:26 pm
BWI
-
EYW
23h 24m1 stop
Multiple Airlines Logo
1:06 pm - 12:06 am
EYW
-
BWI
11h 00m1 stop
$175Multiple Airlines
dom., ene. 11 - vie., ene. 16
United Airlines Logo
8:15 am - 11:41 am
IAD
-
EYW
3h 26mnonstop
United Airlines Logo
1:25 pm - 4:14 pm
EYW
-
IAD
2h 49mnonstop
$279United Airlines
jue., dic. 25 - mié., dic. 31
Allegiant Air Logo
2:35 pm - 7:55 pm
IAD
-
EYW
5h 20m1 stop
Allegiant Air Logo
3:15 pm - 1:45 pm
EYW
-
IAD
22h 30m2 stops
$281Allegiant Air
mié., dic. 24 - mar., dic. 30
United Airlines Logo
1:00 pm - 4:22 pm
IAD
-
EYW
3h 22mnonstop
United Airlines Logo
6:05 pm - 8:53 pm
EYW
-
IAD
2h 48mnonstop
$288United Airlines
mar., ene. 20 - sáb., ene. 24
Delta Logo
1:40 pm - 7:40 pm
DCA
-
EYW
6h 00m1 stop
Delta Logo
2:45 pm - 7:32 pm
EYW
-
DCA
4h 47m1 stop
$288Delta
jue., ene. 8 - jue., ene. 15
Delta Logo
12:20 pm - 7:40 pm
DCA
-
EYW
7h 20m1 stop
Delta Logo
6:06 pm - 11:32 pm
EYW
-
DCA
5h 26m1 stop
$294Delta
sáb., ene. 17 - sáb., ene. 24
American Airlines Logo
7:30 am - 10:38 am
DCA
-
EYW
3h 08mnonstop
American Airlines Logo
5:21 pm - 8:04 pm
EYW
-
DCA
2h 43mnonstop
$295American Airlines
jue., ene. 8 - jue., ene. 15
American Airlines Logo
7:45 am - 10:53 am
DCA
-
EYW
3h 08mnonstop
American Airlines Logo
7:45 pm - 12:34 am
EYW
-
DCA
4h 49m1 stop
$299American Airlines
sáb., ene. 17 - mar., ene. 20

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
Dec 25
IAD8:15 amWashington, D.C. Dulles Intl
3h 26m
EYW11:41 amKey West
Dec 31
EYW1:25 pmKey West
2h 49m
IAD4:14 pmWashington, D.C. Dulles Intl
$279
Find similar
United Airlines
Dec 25
IAD8:15 amWashington, D.C. Dulles Intl
3h 26m
EYW11:41 amKey West
Dec 29
EYW5:10 pmKey West
2h 49m
IAD7:59 pmWashington, D.C. Dulles Intl
$286
Find similar
United Airlines
Jan 20
IAD1:00 pmWashington, D.C. Dulles Intl
3h 22m
EYW4:22 pmKey West
Jan 24
EYW6:05 pmKey West
2h 48m
IAD8:53 pmWashington, D.C. Dulles Intl
$288
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 8
DCA1:40 pmWashington, D.C. Reagan-National
6h 00m
1 stop
EYW7:40 pmKey West
Jan 15
EYW2:45 pmKey West
4h 47m
1 stop
DCA7:32 pmWashington, D.C. Reagan-National
$288
Find similar
Delta
Jan 17
DCA12:20 pmWashington, D.C. Reagan-National
7h 20m
1 stop
EYW7:40 pmKey West
Jan 24
EYW6:06 pmKey West
5h 26m
1 stop
DCA11:32 pmWashington, D.C. Reagan-National
$289
Find similar
Delta
Jan 17
DCA12:20 pmWashington, D.C. Reagan-National
7h 20m
1 stop
EYW7:40 pmKey West
Jan 24
EYW6:06 pmKey West
5h 26m
1 stop
DCA11:32 pmWashington, D.C. Reagan-National
$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 diciembre 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

mié. 1/7

9:09 pm-2:56 pm

1 stop17h 47m

Key West

mié. 1/14

4:06 pm-7:23 am

1 stop15h 17m

$173

BaltimoreKey West

BWI - EYW

BWIEYW

Baltimore/Washington

dom. 1/11

1:02 pm-12:26 pm

1 stop23h 24m

Key West

jue. 1/15

10:06 am-3:52 pm

1 stop5h 46m

$174

BaltimoreKey West

BWI - EYW

BWIEYW

Baltimore/Washington

dom. 1/11

1:02 pm-12:26 pm

1 stop23h 24m

Key West

vie. 1/16

1:06 pm-12:06 am

1 stop11h 00m

$175

Washington, D.C.Key West

IAD - EYW

IADEYW

Washington, D.C. Dulles Intl

jue. 12/25

8:15 am-11:41 am

Nonstop3h 26m

Key West

mié. 12/31

1:25 pm-4:14 pm

Nonstop2h 49m

$279

Washington, D.C.Key West

IAD - EYW

IADEYW

Washington, D.C. Dulles Intl

mié. 12/24

2:35 pm-7:55 pm

1 stop5h 20m

Key West

mar. 12/30

3:15 pm-1:45 pm

2 stops22h 30m

$281

Washington, D.C.Key West

IAD - EYW

IADEYW

Washington, D.C. Dulles Intl

mar. 1/20

1:00 pm-4:22 pm

Nonstop3h 22m

Key West

sáb. 1/24

6:05 pm-8:53 pm

Nonstop2h 48m

$288

Washington, D.C.Key West

DCA - EYW

DCAEYW

Washington, D.C. Reagan-National

jue. 1/8

1:40 pm-7:40 pm

1 stop6h 00m

Key West

jue. 1/15

2:45 pm-7:32 pm

1 stop4h 47m

$288

Washington, D.C.Key West

DCA - EYW

DCAEYW

Washington, D.C. Reagan-National

sáb. 1/17

12:20 pm-7:40 pm

1 stop7h 20m

Key West

sáb. 1/24

6:06 pm-11:32 pm

1 stop5h 26m

$294

Washington, D.C.Key West

DCA - EYW

DCAEYW

Washington, D.C. Reagan-National

jue. 1/8

7:30 am-10:38 am

Nonstop3h 08m

Key West

jue. 1/15

5:21 pm-8:04 pm

Nonstop2h 43m

$295

Washington, D.C.Key West

DCA - EYW

DCAEYW

Washington, D.C. Reagan-National

sáb. 1/17

7:45 am-10:53 am

Nonstop3h 08m

Key West

mar. 1/20

7:45 pm-12:34 am

1 stop4h 49m

$299

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 $375.

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 $362. 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. 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 $333. 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 $477 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 $381 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 44% 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 December 2025, prices for Washington, D.C. to Key West flights are approximately 158% more expensive 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

$254

Fastest flight time

2h 57m

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 $254. The best round-trip flight deal from Washington, D.C. to Key West found on momondo in the last 72 hours is $309.
The fastest flight from Washington, D.C. to Key West takes 2h 57m
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 2h 57m.

  • 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
8,180 reviews
Search Spirit Airlines flights
DeltaPriceFrom $175Free CancellationRating
7.9
8,007 reviews
Search Delta flights
United AirlinesPriceFrom $186Free CancellationRating
7.4
9,095 reviews
Search United Airlines flights
American AirlinesPriceFrom $258Free CancellationRating
7.2
11,050 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 $258 round-trip. Over the 12 American Airlines flights for this route in a normal week, average airfare is usually $462 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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