Latest deals
Insights
When to book
FAQs
Reviews
Price Alerts

Cheap flights from Key West to Washington, D.C. from $88

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.
1 adult
0 bags

Discover deals from 900+ travel sites with momondo.

Save money when you book flights with momondo

Big names and deals

Big names and deals

Search 100s of travel sites to compare prices.

Filter for what you want

Filter for what you want

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

Trusted and free

Trusted and free

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

Price Alerts

Price Alerts

Not ready to book? to track prices.
Search flight deals

Find the cheapest flights from Key West to Washington, D.C.

Cheap round-trip flights

Enter your travel dates to find the best prices.
United Airlines Logo
6:35 pm - 9:25 pm
EYW
-
IAD
2h 50mnonstop
United Airlines Logo
12:50 pm - 4:07 pm
IAD
-
EYW
3h 17mnonstop
$229United Airlines
Thu, Feb 26 - Sun, Mar 1
Multiple Airlines Logo
12:25 pm - 10:13 am
EYW
-
BWI
21h 48m
1 stop
Multiple Airlines Logo
9:48 pm - 1:37 pm
BWI
-
EYW
15h 49m
1 stop
$239Multiple Airlines
Tue, Apr 7 - Sun, Apr 12
Multiple Airlines Logo
12:25 pm - 12:36 am
EYW
-
IAD
12h 11m
2 stops
Multiple Airlines Logo
2:01 pm - 10:11 am
IAD
-
EYW
20h 10m
1 stop
$248Multiple Airlines
Tue, Apr 7 - Sun, Apr 12
Multiple Airlines Logo
12:25 pm - 12:36 am
EYW
-
IAD
12h 11m
2 stops
Multiple Airlines Logo
2:01 pm - 10:11 am
IAD
-
EYW
20h 10m
1 stop
$258Multiple Airlines
Thu, Apr 9 - Sun, Apr 12
Multiple Airlines Logo
12:25 pm - 10:13 am
EYW
-
BWI
21h 48m
1 stop
Multiple Airlines Logo
9:48 pm - 12:26 pm
BWI
-
EYW
14h 38m
2 stops
$274Multiple Airlines
Tue, Apr 7 - Sun, Apr 12
Multiple Airlines Logo
9:46 am - 10:11 am
EYW
-
IAD
24h 25m
1 stop
Multiple Airlines Logo
2:01 pm - 10:11 am
IAD
-
EYW
20h 10m
1 stop
$283Multiple Airlines
Thu, Apr 9 - Sun, Apr 12
American Airlines Logo
12:04 pm - 2:52 pm
EYW
-
DCA
2h 48mnonstop
American Airlines Logo
4:59 pm - 10:58 pm
DCA
-
EYW
5h 59m
1 stop
$296American Airlines
Wed, Apr 8 - Sat, Apr 11
Delta Logo
6:19 pm - 12:42 am
EYW
-
IAD
6h 23m
1 stop
Delta Logo
3:00 pm - 7:40 pm
IAD
-
EYW
4h 40m
1 stop
$299Delta
Fri, May 1 - Sun, May 3
American Airlines Logo
7:45 pm - 12:36 am
EYW
-
DCA
4h 51m
1 stop
American Airlines Logo
8:20 am - 11:26 am
DCA
-
EYW
3h 06mnonstop
$314American Airlines
Tue, Feb 24 - Tue, Mar 3
Delta Logo
7:00 am - 1:06 pm
EYW
-
BWI
6h 06m
1 stop
Delta Logo
6:00 am - 10:58 am
BWI
-
EYW
4h 58m
1 stop
$319Delta
Thu, Jul 9 - Sun, Jul 12

Delta flights from Key West to Washington, D.C.

Our best Delta deals on Key West to Washington, D.C. flight tickets
Delta
May 1
EYW6:19 pmKey West
6h 23m
1 stop
IAD12:42 amWashington, D.C. Dulles Intl
May 3
IAD3:00 pmWashington, D.C. Dulles Intl
4h 40m
1 stop
EYW7:40 pmKey West
$299
Delta
Jul 9
EYW7:00 amKey West
6h 06m
1 stop
BWI1:06 pmBaltimore/Washington
Jul 12
BWI6:00 amBaltimore/Washington
4h 58m
1 stop
EYW10:58 amKey West
$319
Delta
Mar 4
EYW7:10 amKey West
7h 35m
1 stop
IAD2:45 pmWashington, D.C. Dulles Intl
Mar 8
IAD12:47 pmWashington, D.C. Dulles Intl
6h 54m
1 stop
EYW7:41 pmKey West
$341

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
Feb 26
EYW6:35 pmKey West
2h 50m
IAD9:25 pmWashington, D.C. Dulles Intl
Mar 1
IAD12:50 pmWashington, D.C. Dulles Intl
3h 17m
EYW4:07 pmKey West
$229
United Airlines
Mar 2
EYW6:40 pmKey West
2h 40m
IAD9:20 pmWashington, D.C. Dulles Intl
Mar 9
IAD1:15 pmWashington, D.C. Dulles Intl
3h 21m
EYW4:36 pmKey West
$304
United Airlines
Feb 26
EYW2:15 pmKey West
6h 48m
1 stop
IAD9:03 pmWashington, D.C. Dulles Intl
Mar 1
IAD12:50 pmWashington, D.C. Dulles Intl
3h 17m
EYW4:07 pmKey West
$314

momondo Fare Finder

 
Customize your flight search to find flights from Key West to Washington, D.C. 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 February 3, 2026.
Use the filters below to find and compare flights from Key West to Washington, D.C. that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Key WestWashington, D.C.

EYW - IAD

EYWIAD

Key West

Thu 2/26

6:35 pm-9:25 pm

Nonstop2h 50m

Washington, D.C. Dulles Intl

Sun 3/1

12:50 pm-4:07 pm

Nonstop3h 17m

$229

Key WestBaltimore

EYW - BWI

EYWBWI

Key West

Tue 4/7

12:25 pm-10:13 am

1 stop21h 48m

Baltimore/Washington

Sun 4/12

9:48 pm-1:37 pm

1 stop15h 49m

$239

Key WestWashington, D.C.

EYW - IAD

EYWIAD

Key West

Tue 4/7

12:25 pm-12:36 am

2 stops12h 11m

Washington, D.C. Dulles Intl

Sun 4/12

2:01 pm-10:11 am

1 stop20h 10m

$248

Key WestWashington, D.C.

EYW - IAD

EYWIAD

Key West

Thu 4/9

12:25 pm-12:36 am

2 stops12h 11m

Washington, D.C. Dulles Intl

Sun 4/12

2:01 pm-10:11 am

1 stop20h 10m

$258

Key WestBaltimore

EYW - BWI

EYWBWI

Key West

Tue 4/7

12:25 pm-10:13 am

1 stop21h 48m

Baltimore/Washington

Sun 4/12

9:48 pm-12:26 pm

2 stops14h 38m

$274

Key WestWashington, D.C.

EYW - IAD

EYWIAD

Key West

Thu 4/9

9:46 am-10:11 am

1 stop24h 25m

Washington, D.C. Dulles Intl

Sun 4/12

2:01 pm-10:11 am

1 stop20h 10m

$283

Key WestWashington, D.C.

EYW - DCA

EYWDCA

Key West

Wed 4/8

12:04 pm-2:52 pm

Nonstop2h 48m

Washington, D.C. Reagan-National

Sat 4/11

4:59 pm-10:58 pm

1 stop5h 59m

$296

Key WestWashington, D.C.

EYW - IAD

EYWIAD

Key West

Fri 5/1

6:19 pm-12:42 am

1 stop6h 23m

Washington, D.C. Dulles Intl

Sun 5/3

3:00 pm-7:40 pm

1 stop4h 40m

$299

Key WestWashington, D.C.

EYW - DCA

EYWDCA

Key West

Tue 2/24

7:45 pm-12:36 am

1 stop4h 51m

Washington, D.C. Reagan-National

Tue 3/3

8:20 am-11:26 am

Nonstop3h 06m

$314

Key WestBaltimore

EYW - BWI

EYWBWI

Key West

Thu 7/9

7:00 am-1:06 pm

1 stop6h 06m

Baltimore/Washington

Sun 7/12

6:00 am-10:58 am

1 stop4h 58m

$319

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
1
2

See travel insights to Washington, D.C. from

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

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 $329.

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 Wednesday. momondo users have found tickets for Wednesday departures for as low as $357. 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 $927.

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 $398. 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 $440. 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. Dulles Intl 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.

Can stopping save me money on Key West to Washington, D.C. flights?

No. A direct flight is the cheapest option for a flight between Key West to Washington, D.C..

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

$176

Fastest flight time

2h 40m

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 $176. The best round-trip flight deal from Key West to Washington, D.C. found on momondo in the last 72 hours is $296.
The fastest flight from Key West to Washington, D.C. takes 2h 40m
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 40m 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.?

  • 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.?

  • What is the most popular airline from Key West to 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
Airline
Rating
Free Cancellation
Price
DeltaPriceFrom $223Free CancellationRating
7.9
8,138 reviews
Search Delta flights
American AirlinesPriceFrom $224Free CancellationRating
7.2
11,216 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 12 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 7.2/10.

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

Book flights to Washington, D.C. if you plan to visit one of these locations
Alexandria
National Harbor
Gettysburg
Arlington
Waldorf
Woodbridge
Tysons
Laurel
Colonial Beach
Silver Spring
Towson
Fredericksburg
Gaithersburg
Rockville
Manassas
Springfield
Fairfax
Linthicum Heights
Bethesda
Glen Burnie

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

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
Thu 3/5
Thu 3/12
By creating a price alert you accept our terms of use and privacy policy.

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.
Washington, D.C. Reagan-National Airport
Washington, D.C. Dulles Intl Airport