Latest deals
Insights
FAQs
Reviews
Price Alerts

Cheap flights from Key West to District of Columbia from $110

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 District of Columbia departing on 10/31. 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 District of Columbia

Cheap round-trip flights

Multiple Airlines Logo
8:55 am - 7:51 pmEYW-IAD
10h 56m1 stop
Multiple Airlines Logo
8:36 pm - 8:15 amIAD-EYW
11h 39m1 stop
$217Multiple Airlines
Find Deal
Fri, Oct 31 - Sun, Nov 2
Multiple Airlines Logo
8:55 am - 6:24 pmEYW-IAD
9h 29m1 stop
Multiple Airlines Logo
7:14 pm - 8:15 amIAD-EYW
13h 01m1 stop
$219Multiple Airlines
Find Deal
Thu, Oct 2 - Sun, Oct 5
Multiple Airlines Logo
8:55 am - 6:19 pmEYW-IAD
9h 24m1 stop
Multiple Airlines Logo
7:14 pm - 8:15 amIAD-EYW
13h 01m1 stop
$223Multiple Airlines
Find Deal
Fri, Oct 3 - Sun, Oct 5
Multiple Airlines Logo
8:55 am - 6:24 pmEYW-IAD
9h 29m1 stop
Multiple Airlines Logo
4:29 pm - 11:05 amIAD-EYW
18h 36m1 stop
$246Multiple Airlines
Find Deal
Thu, Oct 2 - Mon, Oct 6
American Airlines Logo
1:38 pm - 4:20 pmEYW-DCA
2h 42mnonstop
American Airlines Logo
12:40 pm - 3:47 pmDCA-EYW
3h 07mnonstop
$250American Airlines
Find Deal
Fri, Oct 31 - Sun, Nov 2
Delta Logo
4:00 pm - 11:41 pmEYW-DCA
7h 41m1 stop
Delta Logo
1:45 pm - 8:06 pmDCA-EYW
6h 21m1 stop
$259Delta
Find Deal
Fri, Oct 31 - Sun, Nov 2
United Airlines Logo
3:12 pm - 9:37 pmEYW-DCA
6h 25m1 stop
United Airlines Logo
6:00 am - 2:29 pmDCA-EYW
8h 29m1 stop
$279United Airlines
Find Deal
Thu, Oct 2 - Mon, Oct 6
American Airlines Logo
1:38 pm - 4:20 pmEYW-DCA
2h 42mnonstop
American Airlines Logo
11:45 am - 5:01 pmDCA-EYW
5h 16m1 stop
$300American Airlines
Find Deal
Fri, Oct 31 - Sun, Nov 2
Delta Logo
1:30 pm - 10:54 pmEYW-DCA
9h 24m1 stop
Delta Logo
6:00 am - 1:12 pmDCA-EYW
7h 12m1 stop
$317Delta
Find Deal
Fri, Mar 6 - Tue, Mar 10
United Airlines Logo
12:30 pm - 3:13 pmEYW-IAD
2h 43mnonstop
United Airlines Logo
8:45 am - 12:05 pmIAD-EYW
3h 20mnonstop
$369United Airlines
Find Deal
Fri, Mar 6 - Tue, Mar 10

United Airlines flights from Key West to District of Columbia

Our best United Airlines deals on Key West to District of Columbia flight tickets
United Airlines
Oct 2
EYW3:12 pmKey West
6h 25m
1 stop
DCA9:37 pmWashington, D.C. Reagan-National
Oct 6
DCA6:00 amWashington, D.C. Reagan-National
8h 29m
1 stop
EYW2:29 pmKey West
$279
Find similar
United Airlines
Mar 6
EYW12:30 pmKey West
2h 43m
IAD3:13 pmWashington, D.C. Dulles Intl
Mar 10
IAD8:45 amWashington, D.C. Dulles Intl
3h 20m
EYW12:05 pmKey West
$369
Find similar
United Airlines
Mar 6
EYW12:30 pmKey West
2h 43m
IAD3:13 pmWashington, D.C. Dulles Intl
Mar 10
IAD6:00 amWashington, D.C. Dulles Intl
6h 46m
1 stop
EYW12:46 pmKey West
$379
Find similar

Delta flights from Key West to District of Columbia

Our best Delta deals on Key West to District of Columbia flight tickets
Delta
Oct 31
EYW4:00 pmKey West
7h 41m
1 stop
DCA11:41 pmWashington, D.C. Reagan-National
Nov 2
DCA1:45 pmWashington, D.C. Reagan-National
6h 21m
1 stop
EYW8:06 pmKey West
$259
Find similar
Delta
Mar 6
EYW1:30 pmKey West
9h 24m
1 stop
DCA10:54 pmWashington, D.C. Reagan-National
Mar 10
DCA6:00 amWashington, D.C. Reagan-National
7h 12m
1 stop
EYW1:12 pmKey West
$317
Find similar
Delta
Mar 6
EYW6:00 pmKey West
6h 07m
1 stop
IAD12:07 amWashington, D.C. Dulles Intl
Mar 10
IAD6:00 amWashington, D.C. Dulles Intl
7h 12m
1 stop
EYW1:12 pmKey West
$324
Find similar

momondo Fare Finder

 
Customize your flight search to find flights from Key West to District of Columbia 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 September 19, 2025.
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

Key WestWashington, D.C.

EYW - IAD

EYWIAD

Key West

Fri 10/31

8:55 am-7:51 pm

1 stop10h 56m

Washington, D.C. Dulles Intl

Sun 11/2

8:36 pm-8:15 am

1 stop11h 39m

$217

Key WestWashington, D.C.

EYW - IAD

EYWIAD

Key West

Thu 10/2

8:55 am-6:24 pm

1 stop9h 29m

Washington, D.C. Dulles Intl

Sun 10/5

7:14 pm-8:15 am

1 stop13h 01m

$219

Key WestWashington, D.C.

EYW - IAD

EYWIAD

Key West

Fri 10/3

8:55 am-6:19 pm

1 stop9h 24m

Washington, D.C. Dulles Intl

Sun 10/5

7:14 pm-8:15 am

1 stop13h 01m

$223

Key WestWashington, D.C.

EYW - IAD

EYWIAD

Key West

Thu 10/2

8:55 am-6:24 pm

1 stop9h 29m

Washington, D.C. Dulles Intl

Mon 10/6

4:29 pm-11:05 am

1 stop18h 36m

$246

Key WestWashington, D.C.

EYW - DCA

EYWDCA

Key West

Fri 10/31

1:38 pm-4:20 pm

Nonstop2h 42m

Washington, D.C. Reagan-National

Sun 11/2

12:40 pm-3:47 pm

Nonstop3h 07m

$250

Key WestWashington, D.C.

EYW - DCA

EYWDCA

Key West

Fri 10/31

4:00 pm-11:41 pm

1 stop7h 41m

Washington, D.C. Reagan-National

Sun 11/2

1:45 pm-8:06 pm

1 stop6h 21m

$259

Key WestWashington, D.C.

EYW - DCA

EYWDCA

Key West

Thu 10/2

3:12 pm-9:37 pm

1 stop6h 25m

Washington, D.C. Reagan-National

Mon 10/6

6:00 am-2:29 pm

1 stop8h 29m

$279

Key WestWashington, D.C.

EYW - DCA

EYWDCA

Key West

Fri 10/31

1:38 pm-4:20 pm

Nonstop2h 42m

Washington, D.C. Reagan-National

Sun 11/2

11:45 am-5:01 pm

1 stop5h 16m

$300

Key WestWashington, D.C.

EYW - DCA

EYWDCA

Key West

Fri 3/6

1:30 pm-10:54 pm

1 stop9h 24m

Washington, D.C. Reagan-National

Tue 3/10

6:00 am-1:12 pm

1 stop7h 12m

$317

Key WestWashington, D.C.

EYW - IAD

EYWIAD

Key West

Fri 3/6

12:30 pm-3:13 pm

Nonstop2h 43m

Washington, D.C. Dulles Intl

Tue 3/10

8:45 am-12:05 pm

Nonstop3h 20m

$369

Flights are sorted by cheapest round-trip flights first.

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

See travel insights to District of Columbia from

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

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 $249. If you don’t want to visit District of Columbia in September, then you should wait until December to fly from Key West, when ticket prices are also cheap, with an average price of $289.

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 $364. 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 $659.

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 $419 when looking at flights departing in the afternoon. Flights to District of Columbia are more costly at noon, with an average ticket price of $838. Departure times at noon 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?

No. A direct flight is the cheapest option for a flight between Key West to District of Columbia.

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

$198

Fastest flight time

2h 42m

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 $198. The best round-trip flight deal from Key West to District of Columbia found on momondo in the last 72 hours is $359.
The fastest flight from Key West to District of Columbia takes 2h 42m
Direct flights go from Key West to District of Columbia every day.
There are 2 airports near District of Columbia: 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?

  • 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?

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
DeltaPriceFrom $223Free CancellationRating
7.9
7,964 reviews
Search Delta flights
American AirlinesPriceFrom $224Free CancellationRating
7.2
10,000 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.

An easier way to manage your District of Columbia 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
Sun 10/19
Sun 10/26
By creating a price alert you accept our terms of use and privacy policy.

Find better results for your trip to District of Columbia

Popular cities in District of Columbia

Popular flights according to clicks in the last 7 days on momondo
Flights to New Yorkfrom $49
Flights to Los Angelesfrom $49
Flights to Miamifrom $49
Flights to Chicagofrom $47
Flights to Orlandofrom $60
Flights to Las Vegasfrom $48
Flights to San Franciscofrom $53
Flights to Washington, D.C.from $49
Flights to Bostonfrom $73
Flights to Atlantafrom $51
Flights to Dallasfrom $56
Flights to Seattlefrom $86