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Cheap flights from Key West to District of Columbia from $127

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 8/6. 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
1 adult, Economy, 0 bags

Discover deals from 900+ travel sites with momondo.

Find the cheapest flights from Key West to District of Columbia

Cheap round-trip flights

Enter your travel dates to find the best prices.
Delta Logo
1:57 pm - 8:35 pm
EYW
-
DCA
6h 38m
1 stop
Delta Logo
12:05 pm - 5:11 pm
DCA
-
EYW
5h 06m
1 stop
$323Delta
Fri, Oct 2 - Tue, Oct 6
Delta Logo
11:45 am - 6:26 pm
EYW
-
IAD
6h 41m
1 stop
Delta Logo
6:00 am - 10:58 am
IAD
-
EYW
4h 58m
1 stop
$323Delta
Thu, Oct 8 - Sun, Oct 11
Multiple Airlines Logo
1:11 pm - 10:55 pm
EYW
-
IAD
9h 44m
2 stops
Multiple Airlines Logo
1:21 pm - 1:22 pm
IAD
-
EYW
24h 01m
1 stop
$342Multiple Airlines
Mon, Jul 27 - Sat, Aug 1
Delta Logo
6:18 pm - 11:52 pm
EYW
-
DCA
5h 34m
1 stop
Delta Logo
6:00 am - 11:00 am
DCA
-
EYW
5h 00m
1 stop
$349Delta
Thu, Jul 9 - Sun, Jul 12
Delta Logo
6:18 pm - 12:41 am
EYW
-
IAD
6h 23m
1 stop
Delta Logo
6:00 am - 11:00 am
IAD
-
EYW
5h 00m
1 stop
$349Delta
Thu, Jul 9 - Sun, Jul 12
Multiple Airlines Logo
12:05 pm - 12:53 pm
EYW
-
IAD
24h 48m
1 stop
Multiple Airlines Logo
8:25 am - 6:28 pm
IAD
-
EYW
10h 03m
2 stops
$371Multiple Airlines
Thu, Jul 2 - Mon, Jul 6
United Airlines Logo
2:26 pm - 9:09 pm
EYW
-
IAD
6h 43m
1 stop
United Airlines Logo
6:33 am - 1:30 pm
IAD
-
EYW
6h 57m
1 stop
$378United Airlines
Sat, Jul 4 - Sun, Jul 5
Multiple Airlines Logo
12:07 pm - 6:33 pm
EYW
-
IAD
6h 26m
1 stop
Multiple Airlines Logo
1:21 pm - 11:25 am
IAD
-
EYW
22h 04m
1 stop
$379Multiple Airlines
Mon, Jul 27 - Sat, Aug 1
American Airlines Logo
11:28 am - 4:26 pm
EYW
-
DCA
4h 58m
1 stop
American Airlines Logo
5:58 am - 1:08 pm
DCA
-
EYW
7h 10m
1 stop
$403American Airlines
Fri, Jul 3 - Sat, Jul 4
American Airlines Logo
5:19 pm - 8:15 pm
EYW
-
DCA
2h 56mnonstop
American Airlines Logo
1:00 pm - 4:15 pm
DCA
-
EYW
3h 15mnonstop
$428American Airlines
Sat, Jul 18 - Sun, Jul 19

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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
Jul 4
EYW2:26 pmKey West
6h 43m
1 stop
IAD9:09 pmWashington, D.C. Dulles Intl
Jul 5
IAD6:33 amWashington, D.C. Dulles Intl
6h 57m
1 stop
EYW1:30 pmKey West
$378
United Airlines
Jul 9
EYW2:26 pmKey West
6h 34m
1 stop
IAD9:00 pmWashington, D.C. Dulles Intl
Jul 12
IAD6:33 amWashington, D.C. Dulles Intl
6h 57m
1 stop
EYW1:30 pmKey West
$468
United Airlines
Jul 9
EYW4:00 pmKey West
8h 45m
1 stop
IAD12:45 amWashington, D.C. Dulles Intl
Jul 12
IAD6:33 amWashington, D.C. Dulles Intl
6h 57m
1 stop
EYW1:30 pmKey West
$496

Delta flights from Key West to District of Columbia

Our best Delta deals on Key West to District of Columbia flight tickets
Delta
Oct 8
EYW11:45 amKey West
6h 41m
1 stop
IAD6:26 pmWashington, D.C. Dulles Intl
Oct 11
IAD6:00 amWashington, D.C. Dulles Intl
4h 58m
1 stop
EYW10:58 amKey West
$323
Delta
Jul 9
EYW6:18 pmKey West
6h 23m
1 stop
IAD12:41 amWashington, D.C. Dulles Intl
Jul 12
IAD6:00 amWashington, D.C. Dulles Intl
5h 00m
1 stop
EYW11:00 amKey West
$349
Delta
Oct 8
EYW11:45 amKey West
6h 29m
1 stop
DCA6:14 pmWashington, D.C. Reagan-National
Oct 11
DCA6:00 amWashington, D.C. Reagan-National
4h 58m
1 stop
EYW10:58 amKey West
$381

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 June 19, 2026.
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

Cheapest round-trip

Key WestWashington, D.C.

EYW - DCA

EYWDCA

Key West

Fri 10/2

1:57 pm-8:35 pm

1 stop6h 38m

Washington, D.C. Reagan-National

Tue 10/6

12:05 pm-5:11 pm

1 stop5h 06m

$323

Key WestWashington, D.C.

EYW - IAD

EYWIAD

Key West

Thu 10/8

11:45 am-6:26 pm

1 stop6h 41m

Washington, D.C. Dulles Intl

Sun 10/11

6:00 am-10:58 am

1 stop4h 58m

$323

Key WestWashington, D.C.

EYW - IAD

EYWIAD

Key West

Mon 7/27

1:11 pm-10:55 pm

2 stops9h 44m

Washington, D.C. Dulles Intl

Sat 8/1

1:21 pm-1:22 pm

1 stop24h 01m

$342

Key WestWashington, D.C.

EYW - DCA

EYWDCA

Key West

Thu 7/9

6:18 pm-11:52 pm

1 stop5h 34m

Washington, D.C. Reagan-National

Sun 7/12

6:00 am-11:00 am

1 stop5h 00m

$349

Key WestWashington, D.C.

EYW - IAD

EYWIAD

Key West

Thu 7/9

6:18 pm-12:41 am

1 stop6h 23m

Washington, D.C. Dulles Intl

Sun 7/12

6:00 am-11:00 am

1 stop5h 00m

$349

Key WestWashington, D.C.

EYW - IAD

EYWIAD

Key West

Thu 7/2

12:05 pm-12:53 pm

1 stop24h 48m

Washington, D.C. Dulles Intl

Mon 7/6

8:25 am-6:28 pm

2 stops10h 03m

$371

Key WestWashington, D.C.

EYW - IAD

EYWIAD

Key West

Sat 7/4

2:26 pm-9:09 pm

1 stop6h 43m

Washington, D.C. Dulles Intl

Sun 7/5

6:33 am-1:30 pm

1 stop6h 57m

$378

Key WestWashington, D.C.

EYW - IAD

EYWIAD

Key West

Mon 7/27

12:07 pm-6:33 pm

1 stop6h 26m

Washington, D.C. Dulles Intl

Sat 8/1

1:21 pm-11:25 am

1 stop22h 04m

$379

Key WestWashington, D.C.

EYW - DCA

EYWDCA

Key West

Fri 7/3

11:28 am-4:26 pm

1 stop4h 58m

Washington, D.C. Reagan-National

Sat 7/4

5:58 am-1:08 pm

1 stop7h 10m

$403
Quickest round-trip

Key WestWashington, D.C.

EYW - DCA

EYWDCA

Key West

Sat 7/18

5:19 pm-8:15 pm

Nonstop2h 56m

Washington, D.C. Reagan-National

Sun 7/19

1:00 pm-4:15 pm

Nonstop3h 15m

$428

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, August 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 $229. If you don’t want to visit District of Columbia in August, then you should wait until January to fly from Key West, when ticket prices are also cheap, with an average price of $229.

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 $308. 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 $733.

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

Flying to District of Columbia from Key West at noon is the least expensive time of day to depart. momondo users have found prices as low as $364 when looking at flights departing at noon. Flights to District of Columbia are more costly in the morning, with an average ticket price of $390. Departure times in the morning 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?

You could potentially save up to 15% on your flight if you consider stops on a Key West to District of Columbia flight.

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

$233

Fastest flight time

2h 56m

Direct flights

Mon, Tue, Wed, Thu, Fri and Sun

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 $233. The best round-trip flight deal from Key West to District of Columbia found on momondo in the last 72 hours is $447.
The fastest flight from Key West to District of Columbia takes 2h 56m
Direct flights go from Key West to District of Columbia on Monday, Tuesday, Wednesday, Thursday, Friday and Sunday. There are no airlines offering direct flights.
There are 2 airports in District of Columbia. From Key West there are direct flights to Washington, D.C. Reagan-National (DCA).
Search flight deals

Frequently asked questions about flying from Key West to District of Columbia

  • 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 $229Free CancellationRating
7.1
11,705 reviews
Search American Airlines 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.

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