What is the cheapest airline that flies from Key West to District of Columbia?

United Airlines and Delta are the most popular carriers operating from Key West to District of Columbia

How many flights depart from Key West to District of Columbia on average per week?

As of March 2026, there are 16 flights per week flying from Key West to District of Columbia. The most common day of the week flights depart is Fri, with 25% of flights taking off on this day.

How many flights depart from Key West to District of Columbia on average per day?

The number of flights available between Key West and District of Columbia is 2 per day as of March 2026. The most frequent departure time is 5:00PM, with 56% of daily flights leaving in the afternoon.

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?

There are 2 operators available for flights from Key West Airport to District of Columbia as of March 2026.

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.

$123 Cheap Flights from Key West to District of Columbia in 2026

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Find the cheapest flights from Key West to District of Columbia

Round-trip

One-way

Last minute

Direct

Cheap round-trip flights

Enter your travel dates to find the best prices.

11:51 am - 7:47 am

EYW

IAD

19h 56m

1 stop

12:56 pm - 10:11 am

IAD

EYW

21h 15m

1 stop

$251Multiple Airlines

Wed, Apr 1 - Sun, Apr 5

2:42 pm - 2:13 pm

EYW

IAD

23h 31m

1 stop

8:30 pm - 11:30 am

IAD

EYW

39h 00m

2 stops

$268Multiple Airlines

Thu, Apr 2 - Mon, Apr 6

12:04 pm - 2:52 pm

EYW

DCA

2h 48mnonstop

8:20 am - 11:24 am

DCA

EYW

3h 04mnonstop

$269American Airlines

Fri, May 1 - Sun, May 3

12:04 pm - 2:52 pm

EYW

DCA

2h 48mnonstop

8:20 am - 11:24 am

DCA

EYW

3h 04mnonstop

$289American Airlines

Fri, Apr 17 - Mon, Apr 20

6:22 pm - 9:25 pm

EYW

IAD

3h 03mnonstop

1:15 pm - 4:42 pm

IAD

EYW

3h 27mnonstop

$289United Airlines

Fri, Apr 17 - Mon, Apr 20

12:04 pm - 2:52 pm

EYW

DCA

2h 48mnonstop

5:00 am - 10:54 am

DCA

EYW

5h 54m

1 stop

$299American Airlines

Fri, Apr 17 - Mon, Apr 20

2:42 pm - 2:13 pm

EYW

IAD

23h 31m

1 stop

8:34 am - 12:21 pm

IAD

EYW

27h 47m

1 stop

$300Multiple Airlines

Thu, Apr 2 - Mon, Apr 6

6:23 pm - 12:42 am

EYW

IAD

6h 19m

1 stop

6:00 am - 11:25 am

IAD

EYW

5h 25m

1 stop

$309Delta

Fri, May 1 - Sun, May 3

5:23 pm - 11:25 pm

EYW

IAD

6h 02m

1 stop

1:15 pm - 4:42 pm

IAD

EYW

3h 27mnonstop

$323United Airlines

Fri, Apr 17 - Mon, Apr 20

2:40 pm - 9:41 pm

EYW

DCA

7h 01m

1 stop

6:05 am - 12:40 pm

DCA

EYW

6h 35m

1 stop

$334Delta

Wed, Apr 8 - Tue, Apr 14

Delta flights from Key West to District of Columbia

Our best Delta deals on Key West to District of Columbia flight tickets

Delta

May 1

EYW6:23 pmKey West

6h 19m

1 stop

IAD12:42 amWashington, D.C. Dulles Intl

May 3

IAD6:00 amWashington, D.C. Dulles Intl

5h 25m

1 stop

EYW11:25 amKey West

$309

Delta

Apr 17

EYW11:45 amKey West

4h 46m

1 stop

IAD4:31 pmWashington, D.C. Dulles Intl

Apr 20

IAD12:37 pmWashington, D.C. Dulles Intl

7h 03m

1 stop

EYW7:40 pmKey West

$334

Delta

May 29

EYW6:19 pmKey West

5h 25m

1 stop

DCA11:44 pmWashington, D.C. Reagan-National

May 31

DCA6:00 amWashington, D.C. Reagan-National

4h 53m

1 stop

EYW10:53 amKey West

$394

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

May 1

EYW12:04 pmKey West

2h 48m

DCA2:52 pmWashington, D.C. Reagan-National

May 3

DCA8:20 amWashington, D.C. Reagan-National

3h 04m

EYW11:24 amKey West

$269

American Airlines

Apr 17

EYW12:04 pmKey West

2h 48m

DCA2:52 pmWashington, D.C. Reagan-National

Apr 20

DCA8:20 amWashington, D.C. Reagan-National

3h 04m

EYW11:24 amKey West

$289

American Airlines

Apr 17

EYW12:04 pmKey West

2h 48m

DCA2:52 pmWashington, D.C. Reagan-National

Apr 20

DCA5:00 amWashington, D.C. Reagan-National

5h 54m

1 stop

EYW10:54 amKey West

$299

momondo Fare Finder

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 - IAD

EYWIAD

Key West

Wed 4/1

11:51 am-7:47 am

1 stop19h 56m

Washington, D.C. Dulles Intl

Sun 4/5

12:56 pm-10:11 am

1 stop21h 15m

$251

Key WestWashington, D.C.

EYW - IAD

EYWIAD

Key West

Thu 4/2

2:42 pm-2:13 pm

1 stop23h 31m

Washington, D.C. Dulles Intl

Mon 4/6

8:30 pm-11:30 am

2 stops39h 00m

$268

Quickest round-trip

Key WestWashington, D.C.

EYW - DCA

EYWDCA

Key West

Fri 5/1

12:04 pm-2:52 pm

Nonstop2h 48m

Washington, D.C. Reagan-National

Sun 5/3

8:20 am-11:24 am

Nonstop3h 04m

$269

Key WestWashington, D.C.

EYW - DCA

EYWDCA

Key West

Fri 4/17

12:04 pm-2:52 pm

Nonstop2h 48m

Washington, D.C. Reagan-National

Mon 4/20

8:20 am-11:24 am

Nonstop3h 04m

$289

Key WestWashington, D.C.

EYW - IAD

EYWIAD

Key West

Fri 4/17

6:22 pm-9:25 pm

Nonstop3h 03m

Washington, D.C. Dulles Intl

Mon 4/20

1:15 pm-4:42 pm

Nonstop3h 27m

$289

Key WestWashington, D.C.

EYW - DCA

EYWDCA

Key West

Fri 4/17

12:04 pm-2:52 pm

Nonstop2h 48m

Washington, D.C. Reagan-National

Mon 4/20

5:00 am-10:54 am

1 stop5h 54m

$299

Key WestWashington, D.C.

EYW - IAD

EYWIAD

Key West

Thu 4/2

2:42 pm-2:13 pm

1 stop23h 31m

Washington, D.C. Dulles Intl

Mon 4/6

8:34 am-12:21 pm

1 stop27h 47m

$300

Key WestWashington, D.C.

EYW - IAD

EYWIAD

Key West

Fri 5/1

6:23 pm-12:42 am

1 stop6h 19m

Washington, D.C. Dulles Intl

Sun 5/3

6:00 am-11:25 am

1 stop5h 25m

$309

Key WestWashington, D.C.

EYW - IAD

EYWIAD

Key West

Fri 4/17

5:23 pm-11:25 pm

1 stop6h 02m

Washington, D.C. Dulles Intl

Mon 4/20

1:15 pm-4:42 pm

Nonstop3h 27m

$323

Key WestWashington, D.C.

EYW - DCA

EYWDCA

Key West

Wed 4/8

2:40 pm-9:41 pm

1 stop7h 01m

Washington, D.C. Reagan-National

Tue 4/14

6:05 am-12:40 pm

1 stop6h 35m

$334

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first

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

Prices

Airlines

Other information

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 $254. If you don’t want to visit District of Columbia in September, then you should wait until February to fly from Key West, when ticket prices are also cheap, with an average price of $279.

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 $313. 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 $748.

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 $392 when looking at flights departing in the afternoon. Flights to District of Columbia are more costly in the morning, with an average ticket price of $418. 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 22% 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	$323
Fastest flight time	2h 56m
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 $323. The best round-trip flight deal from Key West to District of Columbia found on momondo in the last 72 hours is $294.

The fastest flight from Key West to District of Columbia takes 2h 56m

Direct flights go from Key West to District of Columbia every day.

There are 2 airports in District of Columbia. From Key West there are direct flights to 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?
There are 2 operators available for flights from Key West Airport to District of Columbia as of March 2026.
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?
Based on momondo bookings for flights between Key West and District of Columbia, the leading plane model is Embraer 175, making up 38.00% of the total bookings. Other popular models include Airbus A319 with 24.00%, Embraer 175 (Enhanced Winglets) with 18.00%, and Boeing 737-700 with 12.00%.

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
Delta	PriceFrom $223	Free Cancellation	Rating 7.9 8,313 reviews		Search Delta flights
American Airlines	PriceFrom $224	Free Cancellation	Rating 7.1 11,488 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.