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Cheap flights from Key West to District of Columbia from $110

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Key West to District of Columbia departing on 8/30. 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 Key West to District of Columbia

Cheap round-trip flights

Delta Logo
6:00 pm - 10:46 pmEYW-DCA
4h 46m1 stop
Delta Logo
6:00 am - 10:56 amDCA-EYW
4h 56m1 stop
$248Delta
Find Deal
Thu, Aug 21 - Sun, Aug 24
Delta Logo
6:10 pm - 10:42 pmEYW-DCA
4h 32m1 stop
Delta Logo
6:00 am - 10:55 amDCA-EYW
4h 55m1 stop
$249Delta
Find Deal
Thu, Sep 18 - Mon, Sep 22
Delta Logo
2:00 pm - 9:39 pmEYW-IAD
7h 39m1 stop
Delta Logo
6:00 am - 10:55 amIAD-EYW
4h 55m1 stop
$249Delta
Find Deal
Thu, Sep 18 - Mon, Sep 22
American Airlines Logo
12:10 pm - 2:59 pmEYW-DCA
2h 49mnonstop
American Airlines Logo
8:20 am - 11:40 amDCA-EYW
3h 20mnonstop
$258American Airlines
Find Deal
Thu, Aug 21 - Sun, Aug 24
American Airlines Logo
12:24 pm - 3:16 pmEYW-DCA
2h 52mnonstop
American Airlines Logo
8:29 am - 11:49 amDCA-EYW
3h 20mnonstop
$259American Airlines
Find Deal
Thu, Sep 18 - Mon, Sep 22
American Airlines Logo
12:10 pm - 2:59 pmEYW-DCA
2h 49mnonstop
American Airlines Logo
8:20 am - 11:40 amDCA-EYW
3h 20mnonstop
$274American Airlines
Find Deal
Thu, Aug 14 - Thu, Aug 21
American Airlines Logo
12:10 pm - 2:59 pmEYW-DCA
2h 49mnonstop
American Airlines Logo
8:20 am - 11:40 amDCA-EYW
3h 20mnonstop
$289American Airlines
Find Deal
Thu, Aug 14 - Mon, Aug 18
United Airlines Logo
3:50 pm - 9:36 pmEYW-DCA
5h 46m1 stop
United Airlines Logo
1:00 pm - 2:01 pmDCA-EYW
25h 01m3 stops
$432United Airlines
Find Deal
Thu, Sep 4 - Mon, Sep 8
United Airlines Logo
3:50 pm - 9:36 pmEYW-DCA
5h 46m1 stop
United Airlines Logo
6:25 am - 2:01 pmDCA-EYW
31h 36m2 stops
$478United Airlines
Find Deal
Thu, Sep 4 - Mon, Sep 8
United Airlines Logo
3:50 pm - 7:10 amEYW-IAD
15h 20m2 stops
United Airlines Logo
8:40 am - 2:55 pmIAD-EYW
6h 15m1 stop
$481United Airlines
Find Deal
Thu, Sep 18 - Mon, Sep 22

United Airlines flights from Key West to District of Columbia

Our best United Airlines deals on Key West to District of Columbia flight tickets
United Airlines
Aug 1
EYW2:12 pmKey West
6h 50m
1 stop
IAD9:02 pmWashington, D.C. Dulles Intl
Aug 6
IAD6:15 amWashington, D.C. Dulles Intl
6h 57m
1 stop
EYW1:12 pmKey West
$424
Find similar
United Airlines
Sep 4
EYW3:50 pmKey West
5h 46m
1 stop
DCA9:36 pmWashington, D.C. Reagan-National
Sep 8
DCA1:00 pmWashington, D.C. Reagan-National
25h 01m
3 stops
EYW2:01 pmKey West
$432
Find similar
United Airlines
Sep 4
EYW3:50 pmKey West
5h 46m
1 stop
DCA9:36 pmWashington, D.C. Reagan-National
Sep 8
DCA6:25 amWashington, D.C. Reagan-National
31h 36m
2 stops
EYW2:01 pmKey West
$478
Find similar

American Airlines flights from Key West to District of Columbia

Our best American Airlines deals on Key West to District of Columbia flight tickets
American Airlines
Aug 21
EYW12:10 pmKey West
2h 49m
DCA2:59 pmWashington, D.C. Reagan-National
Aug 24
DCA8:20 amWashington, D.C. Reagan-National
3h 20m
EYW11:40 amKey West
$258
Find similar
American Airlines
Sep 18
EYW12:24 pmKey West
2h 52m
DCA3:16 pmWashington, D.C. Reagan-National
Sep 22
DCA8:29 amWashington, D.C. Reagan-National
3h 20m
EYW11:49 amKey West
$259
Find similar
American Airlines
Aug 14
EYW12:10 pmKey West
2h 49m
DCA2:59 pmWashington, D.C. Reagan-National
Aug 21
DCA8:20 amWashington, D.C. Reagan-National
3h 20m
EYW11:40 amKey West
$274
Find similar

momondo Fare Finder

 
Customize your flight search to find flights from Key West to District of Columbia 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 31, 2025.
Use the filters below to find and compare flights from Key West to District of Columbia that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Key WestWashington, D.C.

EYW - DCA

EYWDCA

Key West

Thu 8/21

6:00 pm-10:46 pm

1 stop4h 46m

Washington, D.C. Reagan-National

Sun 8/24

6:00 am-10:56 am

1 stop4h 56m

$248

Key WestWashington, D.C.

EYW - DCA

EYWDCA

Key West

Thu 9/18

6:10 pm-10:42 pm

1 stop4h 32m

Washington, D.C. Reagan-National

Mon 9/22

6:00 am-10:55 am

1 stop4h 55m

$249

Key WestWashington, D.C.

EYW - IAD

EYWIAD

Key West

Thu 9/18

2:00 pm-9:39 pm

1 stop7h 39m

Washington, D.C. Dulles Intl

Mon 9/22

6:00 am-10:55 am

1 stop4h 55m

$249

Key WestWashington, D.C.

EYW - DCA

EYWDCA

Key West

Thu 8/21

12:10 pm-2:59 pm

Nonstop2h 49m

Washington, D.C. Reagan-National

Sun 8/24

8:20 am-11:40 am

Nonstop3h 20m

$258

Key WestWashington, D.C.

EYW - DCA

EYWDCA

Key West

Thu 9/18

12:24 pm-3:16 pm

Nonstop2h 52m

Washington, D.C. Reagan-National

Mon 9/22

8:29 am-11:49 am

Nonstop3h 20m

$259

Key WestWashington, D.C.

EYW - DCA

EYWDCA

Key West

Thu 8/14

12:10 pm-2:59 pm

Nonstop2h 49m

Washington, D.C. Reagan-National

Thu 8/21

8:20 am-11:40 am

Nonstop3h 20m

$274

Key WestWashington, D.C.

EYW - DCA

EYWDCA

Key West

Thu 8/14

12:10 pm-2:59 pm

Nonstop2h 49m

Washington, D.C. Reagan-National

Mon 8/18

8:20 am-11:40 am

Nonstop3h 20m

$289

Key WestWashington, D.C.

EYW - DCA

EYWDCA

Key West

Thu 9/4

3:50 pm-9:36 pm

1 stop5h 46m

Washington, D.C. Reagan-National

Mon 9/8

1:00 pm-2:01 pm

3 stops25h 01m

$432

Key WestWashington, D.C.

EYW - DCA

EYWDCA

Key West

Thu 9/4

3:50 pm-9:36 pm

1 stop5h 46m

Washington, D.C. Reagan-National

Mon 9/8

6:25 am-2:01 pm

2 stops31h 36m

$478

Key WestWashington, D.C.

EYW - IAD

EYWIAD

Key West

Thu 9/18

3:50 pm-7:10 am

2 stops15h 20m

Washington, D.C. Dulles Intl

Mon 9/22

8:40 am-2:55 pm

1 stop6h 15m

$481

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 District of Columbia from

How to get the cheapest flight ticket from Key West to District of Columbia

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 District of Columbia?

In general, September is the cheapest month to fly from Key West to District of Columbia. Due to it being the ‘off-season’ during this time, you can expect flight prices to be around $251. If you don’t want to visit District of Columbia in September, then you should wait until December to fly from Key West, when ticket prices are also cheap, with an average price of $289.

What is the cheapest day to depart on your flight to District of Columbia?

The cheapest day to depart on your flight to District of Columbia is on a Thursday when prices can be found for as low as $364. This is often the case because there is less demand to fly during this day of the week. On the other hand, Sunday is the most expensive day to depart from Key West because it is more convenient for both business and leisure travelers. As a result, prices tend to be around $659.

What is the cheapest time of day to depart on your flight to District of Columbia?

Flying to District of Columbia from Key West in the afternoon is the least expensive time of day to depart. momondo users have found prices as low as $424 when looking at flights departing in the afternoon. Flights to District of Columbia are more costly at noon, with an average ticket price of $1,068. Departure times at noon fall within the peak daily travel times, which is why tickets can be more expensive.

What is the cheapest Key West to District of Columbia flight route?

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

What cabin class options are available on Key West to District of Columbia flights?

There are 4 cabin classes available to choose from on Key West to District of Columbia 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 Key West to District of Columbia flights?

No. A direct flight is the cheapest option for a flight between Key West to District of Columbia.

Cheap Key West to District of Columbia flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Key West to District of Columbia

Best Price Found

$110

Fastest flight time

2h 41m

Direct flights

Every day

Airports in District of Columbia

2 airports
The best one-way flight to District of Columbia from Key West in the past 72 hours is $110. The best round-trip flight deal from Key West to District of Columbia found on momondo in the last 72 hours is $248.
The fastest flight from Key West to District of Columbia takes 2h 41m
Direct flights go from Key West to District of Columbia every day.
There are 2 airports near District of Columbia: Washington, D.C. Reagan-National (DCA), Washington, D.C. Dulles Intl (IAD)
Search flight deals

  • When did momondo last update prices for flights from Key West Airport to District of Columbia?

    Prices for flights from Key West Airport to District of Columbia are refreshed on a daily basis.

  • How many operators does momondo search for flights from Key West Airport to District of Columbia?

  • How old do you have to be to fly from Key West Airport to District of Columbia?

    The minimum age a child must be to fly alone is five but airlines that offer an unaccompanied minor (UNMR) service will have their own age restrictions, including rules around flight length, timings, and stopovers. We always recommend checking with the individual airline you are booking with to travel from Key West Airport to District of Columbia.

  • What documentation or ID do you need to fly to District of Columbia?

    The necessary travel and health documents for your District of Columbia trip may vary depending on your travel plans and individual circumstances. Generally, you should have various documents, such as a national ID card or driver's license and a passport that is valid for six months beyond your scheduled arrival date. We recommend seeking advice from your airline or a trusted third party, such as IATA.

  • What is the most popular plane model from Key West to District of Columbia?

Best airlines flying from Key West to District of Columbia

Compare and see reviews for airlines that fly from Key West to District of Columbia with momondo
Airline
Rating
Free Cancellation
Price
American AirlinesPriceFrom $223Free CancellationRating
7.2
10,000 reviews
Search American Airlines flights
DeltaPriceFrom $223Free CancellationRating
8.0
7,981 reviews
Search Delta flights

Why use momondo?

Why should I use momondo to find a flight deal from Key West to District of Columbia?

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

Can I find flights from Key West to District of Columbia with flexible booking policies on momondo?

Yes. momondo enables you to select and highlight flights to District of Columbia from Key West with this policy.

How can momondo help me find flights from Key West to District of Columbia?

Once you have performed a search for Key West to District of Columbia flights, momondo helps you find the right one by offering useful filters to narrow down your flight selection. Flights can be filtered by multiple factors such as airline, airport and price; but also by other criteria like aircraft type and payment method.

I’m not ready to book a flight from Key West to District of Columbia right now. Can momondo alert me if prices change?

If you are not ready to book a flight from Key West to District of Columbia now, use our insights above to find helpful tips or alternatively set up a price alert, where momondo will track prices on flights to District of Columbia and let you know when they change.

An easier way to manage your District of Columbia trip

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