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

Delta is the most popular carrier operating from District of Columbia to Key West

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

As of September 2026, 6 flights take off from District of Columbia and land in Key West each week. The most common flight departure day for this route is Mon, with 17% of weekly flights taking off on this day.

What airlines fly to Key West?

American Airlines, United Airlines and Delta are the top three most popular airlines that fly to Key West from District of Columbia according to our data. American Airlines is the first choice among our users, with 72% of people opting to fly with this airline when traveling to Key West. Keep in mind that there are 3 different airlines that fly to Key West on a routine basis, so you have a few additional options to choose from.

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

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

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

As of September 2026, there are 3 operators available to choose from for flights from District of Columbia to Key West Airport.

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

What documentation or ID do you need to fly to Key West Airport?

The necessary travel and health documents for your Key West Airport 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.

$91 Cheap Flights from District of Columbia to Key West in 2026/27

Discover deals from 900+ travel sites with momondo.

Find the cheapest flights from District of Columbia to Key West

Round-trip

One-way

Last minute

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Cheap round-trip flights

Enter your travel dates to find the best prices.

11:16 am - 10:19 amIAD Washington, D.C. Dulles Intl-EYW Key West

23h 03m1 stop Orlando

1:16 pm - 11:43 pmEYW Key West-IAD Washington, D.C. Dulles Intl

10h 27m2 stops Tampa Atlanta Hartsfield-Jackson

$183Multiple Airlines

Sat, Nov 14 - Tue, Nov 17

11:16 am - 10:19 amIAD Washington, D.C. Dulles Intl-EYW Key West

23h 03m1 stop Orlando

1:16 pm - 11:43 pmEYW Key West-IAD Washington, D.C. Dulles Intl

10h 27m2 stops Tampa Atlanta Hartsfield-Jackson

$188Multiple Airlines

Sat, Nov 14 - Tue, Nov 17

8:16 am - 10:19 amIAD Washington, D.C. Dulles Intl-EYW Key West

26h 03m1 stop Knoxville McGhee Tyson

1:16 pm - 11:43 pmEYW Key West-IAD Washington, D.C. Dulles Intl

10h 27m2 stops Tampa Atlanta Hartsfield-Jackson

$189Multiple Airlines

Sun, Oct 25 - Tue, Oct 27

9:06 am - 12:26 pmDCA Washington, D.C. Reagan-National-EYW Key West

3h 20mnonstop

1:04 pm - 3:59 pmEYW Key West-DCA Washington, D.C. Reagan-National

2h 55mnonstop

$339American Airlines

Sun, Nov 22 - Wed, Nov 25

8:20 am - 11:39 amDCA Washington, D.C. Reagan-National-EYW Key West

3h 19mnonstop

2:00 pm - 4:57 pmEYW Key West-DCA Washington, D.C. Reagan-National

2h 57mnonstop

$339American Airlines

Sat, Oct 10 - Fri, Oct 16

2:53 pm - 6:08 pmDCA Washington, D.C. Reagan-National-EYW Key West

3h 15mnonstop

4:49 pm - 7:32 pmEYW Key West-DCA Washington, D.C. Reagan-National

2h 43mnonstop

$339American Airlines

Thu, Jan 21 - Sat, Jan 23

6:00 am - 10:48 amDCA Washington, D.C. Reagan-National-EYW Key West

4h 48m1 stop Atlanta Hartsfield-Jackson

7:25 am - 2:59 pmEYW Key West-DCA Washington, D.C. Reagan-National

7h 34m1 stop Atlanta Hartsfield-Jackson

$359Delta

Mon, Dec 7 - Sat, Dec 12

1:45 pm - 7:43 pmDCA Washington, D.C. Reagan-National-EYW Key West

5h 58m1 stop Atlanta Hartsfield-Jackson

2:35 pm - 9:15 pmEYW Key West-DCA Washington, D.C. Reagan-National

6h 40m1 stop Atlanta Hartsfield-Jackson

$359Delta

Thu, Jan 21 - Sat, Jan 23

6:10 am - 1:54 pmIAD Washington, D.C. Dulles Intl-EYW Key West

7h 44m1 stop Newark

2:50 pm - 10:25 pmEYW Key West-IAD Washington, D.C. Dulles Intl

7h 35m1 stop Newark

$376United Airlines

Wed, Oct 28 - Sat, Oct 31

6:10 am - 1:54 pmIAD Washington, D.C. Dulles Intl-EYW Key West

7h 44m1 stop Newark

2:50 pm - 10:25 pmEYW Key West-IAD Washington, D.C. Dulles Intl

7h 35m1 stop Newark

$384United Airlines

Mon, Oct 26 - Sat, Oct 31

Cheap last minute flights

Enter your travel dates to find the best prices.

8:21 am - 11:44 amDCA Washington, D.C. Reagan-National-EYW Key West

3h 23mnonstop

12:14 pm - 3:13 pmEYW Key West-DCA Washington, D.C. Reagan-National

2h 59mnonstop

$439American Airlines

Sat, Sep 26 - Sat, Oct 3

10:30 am - 1:51 pmDCA Washington, D.C. Reagan-National-EYW Key West

3h 21mnonstop

1:47 pm - 6:09 pmEYW Key West-DCA Washington, D.C. Reagan-National

4h 22m1 stop Miami

$449American Airlines

Sat, Sep 26 - Sat, Oct 3

6:00 am - 10:46 amIAD Washington, D.C. Dulles Intl-EYW Key West

4h 46m1 stop Atlanta Hartsfield-Jackson

6:19 pm - 12:41 amEYW Key West-IAD Washington, D.C. Dulles Intl

6h 22m1 stop Atlanta Hartsfield-Jackson

$459Delta

Wed, Sep 30 - Sun, Oct 4

1:44 pm - 7:17 pmDCA Washington, D.C. Reagan-National-EYW Key West

5h 33m1 stop Miami

7:47 pm - 12:31 amEYW Key West-DCA Washington, D.C. Reagan-National

4h 44m1 stop Miami

$459American Airlines

Sat, Sep 26 - Sat, Oct 3

11:12 am - 10:19 amIAD Washington, D.C. Dulles Intl-EYW Key West

23h 07m1 stop Orlando

12:01 pm - 12:10 amEYW Key West-IAD Washington, D.C. Dulles Intl

12h 09m2 stops Tampa Atlanta Hartsfield-Jackson

$468Multiple Airlines

Sun, Sep 27 - Thu, Oct 1

11:12 am - 10:19 amIAD Washington, D.C. Dulles Intl-EYW Key West

23h 07m1 stop Orlando

12:01 pm - 12:53 pmEYW Key West-IAD Washington, D.C. Dulles Intl

24h 52m1 stop Tampa

$471Multiple Airlines

Sun, Sep 27 - Thu, Oct 1

12:26 pm - 8:00 pmDCA Washington, D.C. Reagan-National-EYW Key West

7h 34m1 stop Atlanta Hartsfield-Jackson

6:19 pm - 11:44 pmEYW Key West-DCA Washington, D.C. Reagan-National

5h 25m1 stop Atlanta Hartsfield-Jackson

$494Delta

Wed, Sep 30 - Sun, Oct 4

6:00 am - 10:46 amIAD Washington, D.C. Dulles Intl-EYW Key West

4h 46m1 stop Atlanta Hartsfield-Jackson

6:19 pm - 12:41 amEYW Key West-IAD Washington, D.C. Dulles Intl

6h 22m1 stop Atlanta Hartsfield-Jackson

$509Delta

Wed, Sep 30 - Sun, Oct 4

6:45 am - 1:29 pmIAD Washington, D.C. Dulles Intl-EYW Key West

6h 44m1 stop Newark

4:20 pm - 11:55 amEYW Key West-IAD Washington, D.C. Dulles Intl

19h 35m2 stops Chicago O'Hare Intl New York LaGuardia

$820United Airlines

Sat, Sep 26 - Sat, Oct 3

8:20 am - 3:24 pmIAD Washington, D.C. Dulles Intl-EYW Key West

7h 04m1 stop Chicago O'Hare Intl

4:20 pm - 7:26 amEYW Key West-IAD Washington, D.C. Dulles Intl

15h 06m2 stops Chicago O'Hare Intl Detroit Metropolitan Wayne County

$833United Airlines

Sat, Sep 26 - Sat, Oct 3

Cheap direct flights

Enter your travel dates to find the best prices.

8:20 am - 11:39 amDCA Washington, D.C. Reagan-National-EYW Key West

3h 19mnonstop

2:00 pm - 4:57 pmEYW Key West-DCA Washington, D.C. Reagan-National

2h 57mnonstop

$339American Airlines

Sat, Oct 10 - Fri, Oct 16

9:06 am - 12:26 pmDCA Washington, D.C. Reagan-National-EYW Key West

3h 20mnonstop

1:04 pm - 3:59 pmEYW Key West-DCA Washington, D.C. Reagan-National

2h 55mnonstop

$339American Airlines

Sun, Nov 22 - Wed, Nov 25

2:53 pm - 6:08 pmDCA Washington, D.C. Reagan-National-EYW Key West

3h 15mnonstop

4:49 pm - 7:32 pmEYW Key West-DCA Washington, D.C. Reagan-National

2h 43mnonstop

$339American Airlines

Thu, Jan 21 - Sat, Jan 23

2:53 pm - 6:08 pmDCA Washington, D.C. Reagan-National-EYW Key West

3h 15mnonstop

6:48 pm - 9:31 pmEYW Key West-DCA Washington, D.C. Reagan-National

2h 43mnonstop

$339American Airlines

Thu, Feb 4 - Mon, Feb 8

3:15 pm - 6:25 pmDCA Washington, D.C. Reagan-National-EYW Key West

3h 10mnonstop

7:00 pm - 9:48 pmEYW Key West-DCA Washington, D.C. Reagan-National

2h 48mnonstop

$339American Airlines

Tue, Nov 10 - Tue, Nov 17

3:15 pm - 6:25 pmDCA Washington, D.C. Reagan-National-EYW Key West

3h 10mnonstop

1:04 pm - 3:59 pmEYW Key West-DCA Washington, D.C. Reagan-National

2h 55mnonstop

$339American Airlines

Tue, Nov 17 - Sat, Nov 21

2:14 pm - 5:30 pmDCA Washington, D.C. Reagan-National-EYW Key West

3h 16mnonstop

6:10 pm - 8:59 pmEYW Key West-DCA Washington, D.C. Reagan-National

2h 49mnonstop

$339American Airlines

Mon, Dec 21 - Thu, Dec 24

9:00 am - 12:25 pmDCA Washington, D.C. Reagan-National-EYW Key West

3h 25mnonstop

4:49 pm - 7:32 pmEYW Key West-DCA Washington, D.C. Reagan-National

2h 43mnonstop

$339American Airlines

Tue, Feb 2 - Sat, Feb 6

1:00 pm - 4:22 pmIAD Washington, D.C. Dulles Intl-EYW Key West

3h 22mnonstop

6:20 pm - 9:09 pmEYW Key West-IAD Washington, D.C. Dulles Intl

2h 49mnonstop

$392United Airlines

Tue, Feb 23 - Tue, Mar 2

9:00 am - 12:07 pmIAD Washington, D.C. Dulles Intl-EYW Key West

3h 07mnonstop

1:35 pm - 4:15 pmEYW Key West-IAD Washington, D.C. Dulles Intl

2h 40mnonstop

$445United Airlines

Thu, Dec 17 - Wed, Dec 23

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American Airlines flights from District of Columbia to Key West

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

American Airlines

Dec 21

DCA2:14 pmWashington, D.C. Reagan-National

3h 16m

EYW5:30 pmKey West

Dec 24

EYW6:10 pmKey West

2h 49m

DCA8:59 pmWashington, D.C. Reagan-National

$339

American Airlines

Oct 12

DCA10:16 amWashington, D.C. Reagan-National

3h 14m

EYW1:30 pmKey West

Oct 21

EYW2:00 pmKey West

2h 57m

DCA4:57 pmWashington, D.C. Reagan-National

$340

American Airlines

Dec 21

DCA2:14 pmWashington, D.C. Reagan-National

3h 16m

EYW5:30 pmKey West

Dec 24

EYW5:54 pmKey West

5h 28m

1 stop

DCA11:22 pmWashington, D.C. Reagan-National

$349

Delta flights from District of Columbia to Key West

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

Delta

Oct 13

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

4h 47m

1 stop

EYW10:47 amKey West

Oct 19

EYW6:10 pmKey West

4h 37m

1 stop

DCA10:47 pmWashington, D.C. Reagan-National

$384

Delta

Nov 7

DCA8:03 amWashington, D.C. Reagan-National

11h 58m

2 stops

EYW8:01 pmKey West

Nov 11

EYW6:08 pmKey West

5h 38m

1 stop

DCA11:46 pmWashington, D.C. Reagan-National

$407

Delta

Oct 17

DCA8:03 amWashington, D.C. Reagan-National

11h 58m

2 stops

EYW8:01 pmKey West

Oct 21

EYW6:10 pmKey West

4h 39m

1 stop

DCA10:49 pmWashington, D.C. Reagan-National

$417

momondo Fare Finder

Use the filters below to find and compare flights from District of Columbia to Key West that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

Washington, D.C.Key West

IAD Washington, D.C. Dulles Intl - EYW Key West

IADEYW

Washington, D.C. Dulles Intl

Sat 11/14

11:16 am-10:19 am

1 stop23h 03m

Key West

Tue 11/17

1:16 pm-11:43 pm

2 stops10h 27m

$183

Washington, D.C.Key West

IAD Washington, D.C. Dulles Intl - EYW Key West

IADEYW

Washington, D.C. Dulles Intl

Sat 11/14

11:16 am-10:19 am

1 stop23h 03m

Key West

Tue 11/17

1:16 pm-11:43 pm

2 stops10h 27m

$188

Washington, D.C.Key West

IAD Washington, D.C. Dulles Intl - EYW Key West

IADEYW

Washington, D.C. Dulles Intl

Sun 10/25

8:16 am-10:19 am

1 stop26h 03m

Key West

Tue 10/27

1:16 pm-11:43 pm

2 stops10h 27m

$189

Washington, D.C.Key West

DCA Washington, D.C. Reagan-National - EYW Key West

DCAEYW

Washington, D.C. Reagan-National

Sun 11/22

9:06 am-12:26 pm

Nonstop3h 20m

Key West

Wed 11/25

1:04 pm-3:59 pm

Nonstop2h 55m

$339

Washington, D.C.Key West

DCA Washington, D.C. Reagan-National - EYW Key West

DCAEYW

Washington, D.C. Reagan-National

Sat 10/10

8:20 am-11:39 am

Nonstop3h 19m

Key West

Fri 10/16

2:00 pm-4:57 pm

Nonstop2h 57m

$339

Quickest round-trip

Washington, D.C.Key West

DCA Washington, D.C. Reagan-National - EYW Key West

DCAEYW

Washington, D.C. Reagan-National

Thu 1/21

2:53 pm-6:08 pm

Nonstop3h 15m

Key West

Sat 1/23

4:49 pm-7:32 pm

Nonstop2h 43m

$339

Washington, D.C.Key West

DCA Washington, D.C. Reagan-National - EYW Key West

DCAEYW

Washington, D.C. Reagan-National

Mon 12/7

6:00 am-10:48 am

1 stop4h 48m

Key West

Sat 12/12

7:25 am-2:59 pm

1 stop7h 34m

$359

Washington, D.C.Key West

DCA Washington, D.C. Reagan-National - EYW Key West

DCAEYW

Washington, D.C. Reagan-National

Thu 1/21

1:45 pm-7:43 pm

1 stop5h 58m

Key West

Sat 1/23

2:35 pm-9:15 pm

1 stop6h 40m

$359

Washington, D.C.Key West

IAD Washington, D.C. Dulles Intl - EYW Key West

IADEYW

Washington, D.C. Dulles Intl

Wed 10/28

6:10 am-1:54 pm

1 stop7h 44m

Key West

Sat 10/31

2:50 pm-10:25 pm

1 stop7h 35m

$376

Washington, D.C.Key West

IAD Washington, D.C. Dulles Intl - EYW Key West

IADEYW

Washington, D.C. Dulles Intl

Mon 10/26

6:10 am-1:54 pm

1 stop7h 44m

Key West

Sat 10/31

2:50 pm-10:25 pm

1 stop7h 35m

$384

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 District of Columbia 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

Prices

Airlines

Other information

What is the cheapest month to fly to Key West?

In general, January is the cheapest month to fly from District of Columbia to Key West. Due to it being the ‘off-season’ during this time, you can expect flight prices to be around $384. If you are unable to visit Key West during the month of January, then departing from District of Columbia during the month April is also very affordable. Most momondo users find prices during this month for around $441.

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 District of Columbia is on a Tuesday. momondo users have found tickets for Tuesday departures for as low as $399. 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 District of Columbia to Key West for around $497.

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 District of Columbia to Key West at noon for as low as $410. 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 morning, with an average ticket price of $473. Departure times in the morning fall within the peak daily travel times, which is why tickets can be more expensive.

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

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

How far in advance should I book a flight from District of Columbia to Key West?

You are more likely to see cheaper flights to Key West from District of Columbia when booking weeks ahead of your departure date. In general, you can expect to find flights to Key West for around $514 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Key West from District of Columbia for as low as $376 on momondo.

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

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

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

Cheap District of Columbia to Key West flight deals and tips

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

Best Price Found	$91
Fastest flight time	3h 07m
Direct flights	Every day
Airports in Key West	1 airport

The best one-way flight to Key West from District of Columbia in the past 72 hours is $91. The best round-trip flight deal from District of Columbia to Key West found on momondo in the last 72 hours is $183.

The fastest flight from District of Columbia to Key West takes 3h 07m

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

There is 1 airport in Key West. From District of Columbia there are direct flights to Key West (EYW).

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

When did momondo last update prices for flights from District of Columbia to Key West Airport?
Prices for flights from District of Columbia to Key West Airport are refreshed on a daily basis.
How many operators does momondo search for flights from District of Columbia to Key West Airport?
As of September 2026, there are 3 operators available to choose from for flights from District of Columbia to Key West Airport.
How old do you have to be to fly from District of Columbia 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 District of Columbia to Key West Airport.
What documentation or ID do you need to fly to Key West Airport?
The necessary travel and health documents for your Key West Airport 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 District of Columbia to Key West?
Based on momondo bookings for this flight route, the most popular plane model on flight routes from District of Columbia to Key West is Embraer 175 (63.76% of total bookings). The next most popular plane models are Airbus A319 (12.75%), Embraer 175 (Enhanced Winglets) (11.74%), and Boeing 737-700 (4.36%).

Best airlines flying from District of Columbia to Key West

Compare and see reviews for airlines that fly from District of Columbia to Key West with momondo

Airline	Rating	Free Cancellation	Price
Delta	PriceFrom $248	Free Cancellation	Rating 7.8 8,595 reviews	Search Delta flights
American Airlines	PriceFrom $278	Free Cancellation	Rating 7.0 12,075 reviews	Search American Airlines flights
United Airlines	PriceFrom $295	Free Cancellation	Rating 7.4 10,233 reviews	Search United Airlines flights

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

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

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

Yes. All flights to Key West from District of Columbia on momondo can be compared and filtered by various policies on offer, including flexible booking.

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

momondo offers useful filters to help you find the right flight. Choose specific flight times, airports or even what payment method you prefer. We have numerous options to help you book your ideal flight from District of Columbia to Key West.

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

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

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Cheap flights from District of Columbia to Key West from $91

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from District of Columbia to Key West departing on 10/27. 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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American Airlines flights from District of Columbia to Key West

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

Delta flights from District of Columbia to Key West

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

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

What is the cheapest month to fly to Key West?

What is the cheapest day to depart on your flight to Key West?

What is the cheapest time of day to depart on your flight to Key West?

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

How far in advance should I book a flight from District of Columbia to Key West?

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

Can stopping save me money on District of Columbia to Key West flights?

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

What airlines fly to Key West?

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

Cheap District of Columbia to Key West flight deals and tips

Best Price Found

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Direct flights

Airports in Key West

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

Best airlines flying from District of Columbia to Key West

Compare and see reviews for airlines that fly from District of Columbia to Key West with momondo

Traveling to a place near Key West?

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Airlines are sorted and displayed according to clicks in the past 7 days on momondo

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List of cabin classes available on flights landing in Key West. Availability may vary depending on flight origin and airline.

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