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

As of August 2025, 7 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 14% of weekly flights taking off on this day.

What airlines fly to Key West?

American Airlines, Delta and United Airlines 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 70% 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.

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

The number of flights available between District of Columbia and Key West is 1 per day as of August 2025. The most frequent departure time is 8:00AM, with 100% of daily flights leaving at noon.

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

Allegiant Air, Delta, and United Airlines are the most popular carriers operating 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 August 2025, 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.

$138 Cheap Flights from District of Columbia to Key West in 2025

1 adult

0 bags

Discover deals from 900+ travel sites with momondo.

Save money when you book flights with momondo

Big names and deals

Search 100s of travel sites to compare prices.

Filter for what you want

Free Wi-Fi? Stopover? Instantly customize your results.

Trusted and free

We’re completely free to use - no hidden charges or fees.

Price Alerts

Not ready to book? to track prices.

Search flight deals

Find the cheapest flights from District of Columbia to Key West

Round-trip

One-way

Last minute

Direct

Cheap round-trip flights

1:34 pm - 8:21 pmIAD-EYW

6h 47m1 stop

9:01 am - 7:56 pmEYW-IAD

10h 55m1 stop

$210Allegiant Air

Find Deal

Mon, Nov 3 - Fri, Nov 7

4:13 pm - 1:56 pmIAD-EYW

21h 43m1 stop

8:55 am - 6:24 pmEYW-IAD

9h 29m1 stop

$228

Find Deal

Mon, Sep 1 - Thu, Sep 4

1:40 pm - 8:12 pmDCA-EYW

6h 32m1 stop

2:00 pm - 9:48 pmEYW-DCA

7h 48m1 stop

$234Delta

Find Deal

Sat, Aug 30 - Wed, Sep 3

3:26 pm - 8:12 pmIAD-EYW

4h 46m1 stop

7:00 am - 2:31 pmEYW-IAD

7h 31m1 stop

$234Delta

Find Deal

Sat, Aug 30 - Sat, Sep 6

1:40 pm - 8:07 pmDCA-EYW

6h 27m1 stop

2:00 pm - 7:30 pmEYW-DCA

5h 30m1 stop

$249Delta

Find Deal

Sat, Sep 20 - Wed, Sep 24

12:35 pm - 8:07 pmIAD-EYW

7h 32m1 stop

7:00 am - 2:33 pmEYW-IAD

7h 33m1 stop

$249Delta

Find Deal

Sat, Sep 20 - Thu, Sep 25

1:44 pm - 4:38 pmDCA-EYW

2h 54mnonstop

5:08 pm - 8:00 pmEYW-DCA

2h 52mnonstop

$259American Airlines

Find Deal

Sat, Sep 6 - Sat, Sep 13

1:44 pm - 4:38 pmDCA-EYW

2h 54mnonstop

7:31 pm - 11:59 pmEYW-DCA

4h 28m1 stop

$309American Airlines

Find Deal

Sat, Sep 27 - Mon, Sep 29

8:25 am - 11:39 amIAD-EYW

3h 14mnonstop

1:30 pm - 8:33 pmEYW-IAD

7h 03m1 stop

$319United Airlines

Find Deal

Tue, Jan 27 - Tue, Feb 3

6:20 am - 2:55 pmIAD-EYW

8h 35m1 stop

3:50 pm - 10:39 pmEYW-IAD

6h 49m1 stop

$329United Airlines

Find Deal

Wed, Sep 10 - Sun, Sep 14

Delta flights from District of Columbia to Key West

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

Delta

Aug 30

IAD3:26 pmWashington, D.C. Dulles Intl

4h 46m

1 stop

EYW8:12 pmKey West

Sep 6

EYW7:00 amKey West

7h 31m

1 stop

IAD2:31 pmWashington, D.C. Dulles Intl

$234

Find similar

Delta

Sep 20

DCA1:40 pmWashington, D.C. Reagan-National

6h 27m

1 stop

EYW8:07 pmKey West

Sep 24

EYW2:00 pmKey West

5h 30m

1 stop

DCA7:30 pmWashington, D.C. Reagan-National

$249

Find similar

Delta

Sep 5

DCA1:40 pmWashington, D.C. Reagan-National

6h 32m

1 stop

EYW8:12 pmKey West

Sep 8

EYW6:20 pmKey West

5h 26m

1 stop

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

$274

Find similar

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

Sep 6

DCA1:44 pmWashington, D.C. Reagan-National

2h 54m

EYW4:38 pmKey West

Sep 13

EYW5:08 pmKey West

2h 52m

DCA8:00 pmWashington, D.C. Reagan-National

$259

Find similar

American Airlines

Sep 27

DCA1:44 pmWashington, D.C. Reagan-National

2h 54m

EYW4:38 pmKey West

Sep 29

EYW7:31 pmKey West

4h 28m

1 stop

DCA11:59 pmWashington, D.C. Reagan-National

$309

Find similar

American Airlines

Sep 4

DCA8:29 amWashington, D.C. Reagan-National

3h 20m

EYW11:49 amKey West

Sep 8

EYW7:31 pmKey West

4h 28m

1 stop

DCA11:59 pmWashington, D.C. Reagan-National

$310

Find similar

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

Washington, D.C.Key West

IAD - EYW

IADEYW

Washington, D.C. Dulles Intl

Mon 11/3

1:34 pm-8:21 pm

1 stop6h 47m

Key West

Fri 11/7

9:01 am-7:56 pm

1 stop10h 55m

$210

Washington, D.C.Key West

IAD - EYW

IADEYW

Washington, D.C. Dulles Intl

Mon 9/1

4:13 pm-1:56 pm

1 stop21h 43m

Key West

Thu 9/4

8:55 am-6:24 pm

1 stop9h 29m

$228

Washington, D.C.Key West

DCA - EYW

DCAEYW

Washington, D.C. Reagan-National

Sat 8/30

1:40 pm-8:12 pm

1 stop6h 32m

Key West

Wed 9/3

2:00 pm-9:48 pm

1 stop7h 48m

$234

Washington, D.C.Key West

IAD - EYW

IADEYW

Washington, D.C. Dulles Intl

Sat 8/30

3:26 pm-8:12 pm

1 stop4h 46m

Key West

Sat 9/6

7:00 am-2:31 pm

1 stop7h 31m

$234

Washington, D.C.Key West

DCA - EYW

DCAEYW

Washington, D.C. Reagan-National

Sat 9/20

1:40 pm-8:07 pm

1 stop6h 27m

Key West

Wed 9/24

2:00 pm-7:30 pm

1 stop5h 30m

$249

Washington, D.C.Key West

IAD - EYW

IADEYW

Washington, D.C. Dulles Intl

Sat 9/20

12:35 pm-8:07 pm

1 stop7h 32m

Key West

Thu 9/25

7:00 am-2:33 pm

1 stop7h 33m

$249

Washington, D.C.Key West

DCA - EYW

DCAEYW

Washington, D.C. Reagan-National

Sat 9/6

1:44 pm-4:38 pm

Nonstop2h 54m

Key West

Sat 9/13

5:08 pm-8:00 pm

Nonstop2h 52m

$259

Washington, D.C.Key West

DCA - EYW

DCAEYW

Washington, D.C. Reagan-National

Sat 9/27

1:44 pm-4:38 pm

Nonstop2h 54m

Key West

Mon 9/29

7:31 pm-11:59 pm

1 stop4h 28m

$309

Washington, D.C.Key West

IAD - EYW

IADEYW

Washington, D.C. Dulles Intl

Tue 1/27

8:25 am-11:39 am

Nonstop3h 14m

Key West

Tue 2/3

1:30 pm-8:33 pm

1 stop7h 03m

$319

Washington, D.C.Key West

IAD - EYW

IADEYW

Washington, D.C. Dulles Intl

Wed 9/10

6:20 am-2:55 pm

1 stop8h 35m

Key West

Sun 9/14

3:50 pm-10:39 pm

1 stop6h 49m

$329

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 $369. If you are unable to visit Key West during the month of January, then departing from District of Columbia during the month September is also very affordable. Most momondo users find prices during this month for around $374.

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 $366. 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 $548.

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 in the afternoon. momondo users have found flights departing from District of Columbia to Key West in the afternoon for as low as $340. 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 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 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 $491 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 $362 on momondo.

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

There are 3 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 59% 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	$138
Fastest flight time	2h 54m
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 $138. The best round-trip flight deal from District of Columbia to Key West found on momondo in the last 72 hours is $210.

The fastest flight from District of Columbia to Key West takes 2h 54m

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

There is 1 airport near Key West: Key West (EYW)

Search flight deals

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 August 2025, 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 (72.36% of total bookings). The next most popular plane models are Embraer 175 (Enhanced Winglets) (8.39%), Airbus A319 (4.35%), and Airbus A320neo (3.42%).

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 $117	Free Cancellation	Rating 8.0 7,980 reviews	Search Delta flights
United Airlines	PriceFrom $186	Free Cancellation	Rating 7.4 8,916 reviews	Search United Airlines flights
American Airlines	PriceFrom $246	Free Cancellation	Rating 7.2 10,000 reviews	Search American Airlines flights

Big Pine Key

Little Torch Key

Why use momondo?

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.

An easier way to manage your Key West trip

We make it super easy to schedule, organize and travel with friends or family. Trips is free — and available to use no matter where you book.

Start using Trips

Find my bookings

Get notified when prices go down

Daily price changes in your inbox - only with Price Alerts.

1 adult

Tue 8/19

Tue 8/26

Email me momondo's favorite deals

By creating a price alert you accept our terms of use and privacy policy.

Find better results for your trip to the United States

Airports servicing Florida

Popular cities in the United States

Flights to New Yorkfrom $58

Flights to Los Angelesfrom $46

Flights to Miamifrom $61

Flights to Chicagofrom $45

Flights to Orlandofrom $45

Flights to Las Vegasfrom $17

Flights to San Franciscofrom $59

Flights to Washington, D.C.from $58

Flights to Bostonfrom $76

Flights to Atlantafrom $48

Flights to Dallasfrom $57

Flights to Seattlefrom $71

Fly to other destinations from District of Columbia

Flights from Washington, D.C. Dulles Intl to Valparaiso Destin-Ft Walton Beach

Flights from Washington, D.C. Dulles Intl to Savannah/Hilton Head

Flights from Washington, D.C. Dulles Intl to South Bend/Michiana

Flights from Washington, D.C. Reagan-National to New York John F Kennedy Intl

Flights from Washington, D.C. Dulles Intl to Tweed-New Haven

Flights from Washington, D.C. Dulles Intl to Wilmington New Hanover County

Cheap flights from District of Columbia to Key West from $138

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 10/24. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.

Big names and deals

Big names and deals

Filter for what you want

Filter for what you want

Trusted and free

Trusted and free

Price Alerts

Price Alerts

Find the cheapest flights from District of Columbia to Key West

Cheap round-trip flights

Cheap one-way flights

Cheap last minute flights

Cheap direct flights

Delta flights from District of Columbia to Key West

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

American Airlines flights from District of Columbia to Key West

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

momondo Fare Finder

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

See travel insights to Key West from

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

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?

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 to Key West?

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

There are 3 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 59% on your flight if you consider stops on a District of Columbia to Key West flight.

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

Allegiant Air, Delta, and United Airlines are the most popular carriers operating 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 day?

The number of flights available between District of Columbia and Key West is 1 per day as of August 2025. The most frequent departure time is 8:00AM, with 100% of daily flights leaving at noon.

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

As of August 2025, 7 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 14% of weekly flights taking off on this day.

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

Fastest flight time

Direct flights

Airports in Key West

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

How many operators does momondo search 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?

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

What is the most popular plane model 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?

Why use momondo?

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

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

How can momondo help me find flights 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?

An easier way to manage your Key West trip

We make it super easy to schedule, organize and travel with friends or family. Trips is free — and available to use no matter where you book.

Get notified when prices go down

Daily price changes in your inbox - only with Price Alerts.

Find better results for your trip to the United States

Airports servicing Florida