What is the cheapest airline that flies from Key West to Washington, D.C.?

Spirit Airlines, United Airlines, and Delta are the most popular carriers operating from Key West to Washington, D.C.

How many flights depart from Key West to Washington, D.C. on average per day?

2 flights are operational daily from Key West to Washington, D.C. as of March 2026. The most popular departure time for this route is 5:00PM, with 56% of flights per day taking off in the afternoon.

How many flights depart from Key West to Washington, D.C. on average per week?

18 flights are operational weekly from Key West to Washington, D.C. as of March 2026. The most popular departure day for this route is Fri, with 22% of flights per week taking off on this day.

When did momondo last update prices for flights from Key West Airport to Washington, D.C.?

Prices for flights from Key West Airport to Washington, D.C. were last updated today.

How many operators does momondo search for flights from Key West Airport to Washington, D.C.?

There are 2 operators available for flights from Key West Airport to Washington, D.C. as of March 2026.

How old do you have to be to fly from Key West Airport to Washington, D.C.?

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 Key West Airport to Washington, D.C..

What documentation or ID do you need to fly to Washington, D.C.?

The travel and health documents you'll need for your trip to Washington, D.C. may differ based on your itinerary and personal situation. Typically, you should have several documents on hand, such as a national ID card or driver's license and a passport that is valid for six months after your intended arrival at Washington, D.C.. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.

$121 Cheap Flights from Key West to Washington, D.C. in 2026

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One-way

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9:58 am - 8:59 am

EYW

IAD

23h 01m

1 stop

2:01 pm - 10:11 am

IAD

EYW

20h 10m

1 stop

$183Allegiant Air

Thu, Apr 16 - Sun, Apr 19

9:49 am - 7:00 pm

EYW

BWI

9h 11m

1 stop

9:59 pm - 12:21 pm

BWI

EYW

14h 22m

1 stop

$193Multiple Airlines

Fri, Apr 17 - Mon, Apr 20

9:49 am - 7:00 pm

EYW

BWI

9h 11m

1 stop

9:59 pm - 12:21 pm

BWI

EYW

14h 22m

1 stop

$200Multiple Airlines

Fri, Apr 17 - Mon, Apr 20

2:04 pm - 8:59 am

EYW

IAD

18h 55m

2 stops

2:01 pm - 10:11 am

IAD

EYW

20h 10m

1 stop

$213Allegiant Air

Thu, Apr 16 - Sun, Apr 19

9:49 am - 7:00 pm

EYW

BWI

9h 11m

1 stop

12:43 pm - 12:21 pm

BWI

EYW

23h 38m

1 stop

$215Multiple Airlines

Fri, Apr 17 - Mon, Apr 20

12:04 pm - 2:52 pm

EYW

DCA

2h 48mnonstop

12:14 pm - 3:24 pm

DCA

EYW

3h 10mnonstop

$289American Airlines

Fri, May 1 - Sun, May 3

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

2:12 pm - 10:00 pm

EYW

DCA

7h 48m

1 stop

12:14 pm - 3:24 pm

DCA

EYW

3h 10mnonstop

$299American Airlines

Fri, May 1 - Sun, May 3

6:22 pm - 9:25 pm

EYW

IAD

3h 03mnonstop

6:00 am - 1:31 pm

IAD

EYW

7h 31m

1 stop

$299United Airlines

Thu, Apr 16 - Sun, Apr 19

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

United Airlines flights from Key West to Washington, D.C.

Our best United Airlines deals on Key West to Washington, D.C. flight tickets

United Airlines

Apr 17

EYW6:22 pmKey West

3h 03m

IAD9:25 pmWashington, D.C. Dulles Intl

Apr 20

IAD1:15 pmWashington, D.C. Dulles Intl

3h 27m

EYW4:42 pmKey West

$289

United Airlines

Apr 17

EYW5:23 pmKey West

6h 02m

1 stop

IAD11:25 pmWashington, D.C. Dulles Intl

Apr 20

IAD1:15 pmWashington, D.C. Dulles Intl

3h 27m

EYW4:42 pmKey West

$323

United Airlines

Apr 23

EYW6:22 pmKey West

3h 03m

IAD9:25 pmWashington, D.C. Dulles Intl

Apr 26

IAD1:15 pmWashington, D.C. Dulles Intl

3h 27m

EYW4:42 pmKey West

$379

American Airlines flights from Key West to Washington, D.C.

Our best American Airlines deals on Key West to Washington, D.C. flight tickets

American Airlines

May 1

EYW12:04 pmKey West

2h 48m

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

May 3

DCA12:14 pmWashington, D.C. Reagan-National

3h 10m

EYW3:24 pmKey West

$289

American Airlines

May 1

EYW2:12 pmKey West

7h 48m

1 stop

DCA10:00 pmWashington, D.C. Reagan-National

May 3

DCA12:14 pmWashington, D.C. Reagan-National

3h 10m

EYW3:24 pmKey West

$299

American Airlines

May 1

EYW4:20 pmKey West

7h 39m

1 stop

IAD11:59 pmWashington, D.C. Dulles Intl

May 3

IAD6:25 amWashington, D.C. Dulles Intl

4h 51m

1 stop

EYW11:16 amKey West

$309

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

Key WestWashington, D.C.

EYW - IAD

EYWIAD

Key West

Thu 4/16

9:58 am-8:59 am

1 stop23h 01m

Washington, D.C. Dulles Intl

Sun 4/19

2:01 pm-10:11 am

1 stop20h 10m

$183

Key WestBaltimore

EYW - BWI

EYWBWI

Key West

Fri 4/17

9:49 am-7:00 pm

1 stop9h 11m

Baltimore/Washington

Mon 4/20

9:59 pm-12:21 pm

1 stop14h 22m

$193

Key WestBaltimore

EYW - BWI

EYWBWI

Key West

Fri 4/17

9:49 am-7:00 pm

1 stop9h 11m

Baltimore/Washington

Mon 4/20

9:59 pm-12:21 pm

1 stop14h 22m

$200

Key WestWashington, D.C.

EYW - IAD

EYWIAD

Key West

Thu 4/16

2:04 pm-8:59 am

2 stops18h 55m

Washington, D.C. Dulles Intl

Sun 4/19

2:01 pm-10:11 am

1 stop20h 10m

$213

Key WestBaltimore

EYW - BWI

EYWBWI

Key West

Fri 4/17

9:49 am-7:00 pm

1 stop9h 11m

Baltimore/Washington

Mon 4/20

12:43 pm-12:21 pm

1 stop23h 38m

$215

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

12:14 pm-3:24 pm

Nonstop3h 10m

$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 5/1

2:12 pm-10:00 pm

1 stop7h 48m

Washington, D.C. Reagan-National

Sun 5/3

12:14 pm-3:24 pm

Nonstop3h 10m

$299

Key WestWashington, D.C.

EYW - IAD

EYWIAD

Key West

Thu 4/16

6:22 pm-9:25 pm

Nonstop3h 03m

Washington, D.C. Dulles Intl

Sun 4/19

6:00 am-1:31 pm

1 stop7h 31m

$299

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 Washington, D.C.

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 Washington, D.C.?

The month of September is, on average, the cheapest month to fly to Washington, D.C. from Key West, with most prices found around $254. If you’re not able to fly to Washington, D.C. in September, then February is your next best option. Flight prices from Key West to Washington, D.C. during February average around $279.

What is the cheapest day to depart on your flight to Washington, D.C.?

On average, the least expensive day to fly to Washington, D.C. from Key West is on a Thursday. momondo users have found tickets for Thursday departures for as low as $313. However, this price may fluctuate depending on the airline, the season, and holidays. When flying out on a Sunday, the most expensive travel day of the week, you can expect to see flight prices from Key West to Washington, D.C. for around $748.

What is the cheapest time of day to depart on your flight to Washington, D.C.?

In the afternoon is the cheapest time of day to fly from Key West to Washington, D.C. when you can find flight prices for as low as $392. Flying to Washington, D.C. in the afternoon is an ideal time because this is during off-peak travel hours. Try not to purchase tickets in the morning because they tend to be around $418. Of course, these prices can vary depending on the time of year and what airport you fly to.

What is the cheapest Key West to Washington, D.C. flight route?

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

What cabin class options are available on Key West to Washington, D.C. flights?

There are 4 cabin classes available to choose from on Key West to Washington, D.C. flights. Cabin price and availability will vary by airline so perform a search above to find the right deals for you.

How have Key West to Washington, D.C. flight prices changed over time?

When to book flights from Key West to Washington, D.C.

Are you open to changing your travel dates? Check out the ideal times to fly from Key West to Washington, D.C. according to our flight data. Find out which month and days have the cheapest flights.

Estimated round-trip price

Cheap Key West to Washington, D.C. (EYW to WAS) flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Key West to Washington, D.C.

Best Price Found	$248
Fastest flight time	2h 56m
Direct flights	Every day
Airports in Washington, D.C.	2 airports

The best one-way flight to Washington, D.C. from Key West in the past 72 hours is $248. The best round-trip flight deal from Key West to Washington, D.C. found on momondo in the last 72 hours is $346.

The fastest flight from Key West to Washington, D.C. takes 2h 56m

Direct flights go from Key West to Washington, D.C. every day.

There are 2 airports in Washington, D.C.. From Key West there are direct flights to Washington, D.C. Reagan-National (DCA), Washington, D.C. Dulles Intl (IAD).

Search flight deals

How far is Key West to Washington, D.C. by plane?
There are 1029.2 mi between Key West and Washington, D.C.. Typically, this will take 2h 56m by plane in normal conditions.
When did momondo last update prices for flights from Key West Airport to Washington, D.C.?
Prices for flights from Key West Airport to Washington, D.C. were last updated today.
How many operators does momondo search for flights from Key West Airport to Washington, D.C.?
There are 2 operators available for flights from Key West Airport to Washington, D.C. as of March 2026.
How old do you have to be to fly from Key West Airport to Washington, D.C.?
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 Key West Airport to Washington, D.C..
What documentation or ID do you need to fly to Washington, D.C.?
The travel and health documents you'll need for your trip to Washington, D.C. may differ based on your itinerary and personal situation. Typically, you should have several documents on hand, such as a national ID card or driver's license and a passport that is valid for six months after your intended arrival at Washington, D.C.. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.
What is the most popular plane model from Key West to Washington, D.C.?
Based on momondo bookings for flights between Key West and Washington, D.C., the leading plane model is Embraer 175, making up 37.50% of the total bookings. Other popular models include Embraer 175 (Enhanced Winglets) with 23.21%, Airbus A319 with 21.43%, and Boeing 737-700 with 10.71%.
What is the most popular airline from Key West to Washington, D.C.?
Based on momondo bookings for this flight route, the most popular airline on flight routes from Key West to Washington, D.C. is American Airlines (100% of total bookings).

Best airlines flying from Key West to Washington, D.C.

Compare and see reviews for airlines that fly from Key West to Washington, D.C. with momondo

Airline	Rating	Free Cancellation	Price
Delta	PriceFrom $223	Free Cancellation	Rating 7.9 8,314 reviews		Search Delta flights
American Airlines	PriceFrom $224	Free Cancellation	Rating 7.1 11,489 reviews		Search American Airlines flights

American Airlines Flights From Key West to Washington, D.C.
American Airlines is one of the most popular airlines flying from Key West to Washington, D.C., operating 10 flights/week on average for this route. A good American Airlines flight deal for Key West to Washington, D.C. starts from $224 round-trip, up to an average price of $361. Our users have rated American Airlines at 7.1/10.

Alexandria

National Harbor

Gettysburg

Arlington

Waldorf

Woodbridge

Colonial Beach

Laurel

Towson

Gaithersburg

Silver Spring

Fredericksburg

Rockville

Tysons

Manassas

Springfield

Linthicum Heights

Bethesda

Fairfax

Reston

Why use momondo?

Why should I use momondo to find a flight deal from Key West to Washington, D.C.?

It is quick and easy to find Key West to Washington, D.C. flights on momondo. We search and return numerous flight options from various airlines and agents. You can then use our filters to narrow your search until you have found the most convenient flight to Washington, D.C. that suits you.

Can I find flights from Key West to Washington, D.C. with flexible booking policies on momondo?

Yes. momondo allows you to filter the results for Key West to Washington, D.C. flights to just show those with flexible booking policies.

How can momondo help me find flights from Key West to Washington, D.C.?

momondo provides multiple filters to help you find the best flight to Washington, D.C. from Key West. Filter by price, airline, airports, cabin, aircraft, payment method, number of stops and more.

I’m not ready to book a flight from Key West to Washington, D.C. right now. Can momondo alert me if prices change?

If you are simply researching potential flights to Washington, D.C., momondo offers a useful price alert feature which will track prices for flights to Washington, D.C. from Key West and alert you when they change.

An easier way to manage your Washington, D.C. trip

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Fly into one of these airports located in Washington, D.C.

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Washington, D.C. Dulles Intl Airport

Cheap flights from Key West to Washington, D.C. from $121

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 Washington, D.C. departing on 4/29. 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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United Airlines flights from Key West to Washington, D.C.

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How to get the cheapest flight ticket from Key West to Washington, D.C.

What is the cheapest month to fly to Washington, D.C.?

What is the cheapest day to depart on your flight to Washington, D.C.?

What is the cheapest time of day to depart on your flight to Washington, D.C.?

What is the cheapest Key West to Washington, D.C. flight route?

What cabin class options are available on Key West to Washington, D.C. flights?

How have Key West to Washington, D.C. flight prices changed over time?

What is the cheapest airline that flies from Key West to Washington, D.C.?

How many flights depart from Key West to Washington, D.C. on average per day?

How many flights depart from Key West to Washington, D.C. on average per week?

When to book flights from Key West to Washington, D.C.

Cheap Key West to Washington, D.C. (EYW to WAS) flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Key West to Washington, D.C.

Best Price Found

Fastest flight time

Direct flights

Airports in Washington, D.C.

Best airlines flying from Key West to Washington, D.C.

Compare and see reviews for airlines that fly from Key West to Washington, D.C. with momondo

American Airlines Flights From Key West to Washington, D.C.

Traveling to a place near Washington, D.C.?

Why use momondo?

An easier way to manage your Washington, D.C. 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.

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Find better results for your trip to the United States

Fly into one of these airports located in Washington, D.C.

Airports listed have a maximum distance of 22.4 mi from Washington, D.C.

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Cabin classes currently available on flights to Washington, D.C.

List of cabin classes available on flights landing in Washington, D.C.. Availability may vary depending on flight origin and airline.

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