EYW - IAD

$88 Find Cheap Flights from Key West to Washington Dulles Airport

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from Key West to Dulles Intl departing on 4/29. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.
1 adult
1 adult, Economy, 0 bags

KAYAK searches hundreds of travel sites at once for deals on flights to Washington, D.C. Dulles Intl Airport

 
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Key West to Washington, D.C., as well as popular online travel agencies
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Key West to Washington, D.C., as well as popular online travel agencies
Travelers love KAYAK
41.299.237 searches in the past 7 days on KAYAK

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Bundle and saveSave money when you bundle your flight + hotel.

Filter your dealsChoose cabin class, free Wi-Fi and more.

Everything you should know

Cheapest round-trip
$229
United Airlines
Thu 2/26Sun 3/1
EYW - IAD • Non-stop
Cheapest one-way
$88
Typical prices: $346-$400
Multiple Airlines
Wed 4/29
EYW - IAD • 1 stop
Our travelers' advice
AI-powered summary based on content written by travel experts. AI can make mistakes.
Arrive two hours early at Key West for security.
Use the Silver Line Metro from Dulles to downtown D.C.
Expert advice
Expert advice
Expert advice
Expert advice
Top airlines
United Airlines
Cheapest • from $229 (round-trip)
Delta
Best reviews • 7.9 score
Airline reviews
Airline reviews
+1
+1
Airline reviews
Airline reviews
+1
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KAYAK searches 100s of sites at once to find you the best travel deals.
We hope you love your trip to Dulles Intl!
Flight Deals
Booking Insights
Expert advice
Flight Deals

Cheap Flights from Key West to Dulles Intl (EYW-IAD)

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from Key West to Dulles Intl that are departing in the next months. While these flights were available on KAYAK in the last 72 hours, prices and availability are subject to change and deals may expire.
Discover the best prices for you by selecting your travel dates on KAYAK.

Recent round-trip flight deals from Key West to Dulles Intl

Thu, Feb 26 - Sun, Mar 1
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
United Airlines Logo
4:52 pm - 11:21 pm
EYW
-
IAD
6h 29m
1 stop
United Airlines Logo
12:50 pm - 4:07 pm
IAD
-
EYW
3h 17mnonstop
$239United Airlines
Thu, Apr 9 - 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, Feb 19 - Mon, Feb 23
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
$279United Airlines
Thu, Apr 9 - 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, Feb 19 - Mon, Feb 23
United Airlines Logo
6:35 pm - 9:25 pm
EYW
-
IAD
2h 50mnonstop
United Airlines Logo
6:00 am - 1:15 pm
IAD
-
EYW
7h 15m
1 stop
$289United Airlines
Fri, May 1 - Sun, May 3
Delta Logo
6:19 pm - 12:42 am
EYW
-
IAD
6h 23m
1 stop
Delta Logo
6:00 am - 11:25 am
IAD
-
EYW
5h 25m
1 stop
$299Delta
Mon, Mar 2 - Mon, Mar 9
United Airlines Logo
6:40 pm - 9:20 pm
EYW
-
IAD
2h 40mnonstop
United Airlines Logo
1:15 pm - 4:36 pm
IAD
-
EYW
3h 21mnonstop
$304United Airlines
Thu, Feb 26 - Sun, Mar 1
United Airlines Logo
2:15 pm - 9:03 pm
EYW
-
IAD
6h 48m
1 stop
United Airlines Logo
12:50 pm - 4:07 pm
IAD
-
EYW
3h 17mnonstop
$314United Airlines
Thu, Feb 26 - Sun, Mar 1
United Airlines Logo
4:52 pm - 11:21 pm
EYW
-
IAD
6h 29m
1 stop
United Airlines Logo
6:00 am - 1:18 pm
IAD
-
EYW
7h 18m
1 stop
$324United Airlines
Booking Insights

KAYAK's insights & trends for Key West to Dulles Intl flights

Get data-powered insights and trends into flights from Key West to Dulles Intl to help you find the cheapest flights, the best time to fly and much more.

What’s the cheapest day of the week to fly from Key West to Washington Dulles Airport?

The average price of all round-trip flights from Key West to Washington, D.C. Dulles Intl Airport clicked on KAYAK for each day over the last 12 months.

If your flying dates are flexible, you should consider flying to Washington Dulles Airport on a Wednesday, as we generally find the cheapest rates on that day for this route. On the other hand, Friday is the most expensive day to fly from Key West to Washington Dulles Airport. For your return ticket, we recommend flying on a Tuesday and avoiding Mondays for the best deals.

Can I save money by flying with a layover from Key West to Washington, D.C. Dulles Intl Airport?

The average round-trip price for all non-stop flights, flights with one layover, and flights with two layovers for the route found by users searching on KAYAK in the last 2 weeks.

No, with an average price for the route of $254, prices are generally cheapest when you fly direct.

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Expert advice

Expert advice for your flight from Key West to Dulles Intl

 
AI-powered summary based on content written by travel experts. AI can make mistakes.
KAYAK teamed up with top travel experts to share the best tips for your journey.
Our travel experts
Paul Rubio

Paul Rubio

Expert on EYW

Travel journalist and photographer Paul Rubio is a Miami native (and current resident), who has lived in nine countries and traveled to 137. He is an expert in luxury travel, eco-travel, loyalty programs, hotels, airports and airlines. He is a contributing editor at AFAR, Condé Nast Traveler, LUXURY Magazine, and Palm Beach Illustrated.

Read more
Stefanie Waldek

Stefanie Waldek

Expert on IAD

Stefanie Waldek is a freelance space, travel, and design writer based in Saratoga Springs, NY. Her words have appeared in Space.com, Travel + Leisure, Condé Nast Traveler, Architectural Digest, and House Beautiful, among other publications. An expert in aviation and expedition cruising, Stefanie is frequently up in the air or on the sea, likely en route to Antarctica or the Arctic.

Read more

Good to know

Low seasonSeptember
Cheapest flight$88
Best time to beat the crowds with an average 46% drop in price.
Most popular time to fly and prices are also 21% lower on average.
Flight from Key West to Washington Dulles Airport

When to book flights from Key West to Dulles Intl

Are your dates flexible? Find out the best times to travel from Key West to Dulles Intl based on our flight data from the last year. Discover the cheapest month and even day to fly.
Estimated round-trip price
KAYAK looks at all historical flight data for each date to provide a predicted price for one-way trips or round-trips with a duration up to 40 days. While we try to provide actual minimum prices for each date, some prices are predictions and actual prices may differ.

FAQs for booking Key West to Washington Dulles Airport flights

  • What is the cheapest flight from Key West to Washington, D.C. Dulles Intl Airport?

    In the last 3 days, the lowest price for a flight from Key West to Washington, D.C. Dulles Intl Airport was $88 for a one-way ticket and $229 for a round-trip.

  • Do I need a passport to fly between Key West and Washington Dulles Airport?

    Even though you are not required to have a passport, keep in mind that an official ID is needed to board the airplane.

  • Which airports will I be using when flying from Key West to Washington Dulles Airport?

    On your way to Washington Dulles Airport, you’ll fly out from Key West. You’ll be landing at Washington, D.C. Dulles Intl.

  • Which airlines offer Wi-Fi service onboard planes from Key West to Washington Dulles Airport?

    Only American Airlines offers inflight Wi-Fi service on the Key West to Washington Dulles Airport flight route.

  • Which aircraft models fly most regularly from Key West to Washington Dulles Airport?

    The Embraer 175 (Enhanced Winglets) is the aircraft model that flies most regularly on the Key West to Washington Dulles Airport flight route.

  • Which airline alliances offer flights from Key West to Washington Dulles Airport?

    SkyTeam is the only airline alliance operating flights between Key West and Washington Dulles Airport.

  • On which days can I fly direct from Key West to Washington Dulles Airport?

    There are nonstop flights from Key West to Washington Dulles Airport on a daily basis.

  • How does KAYAK find such low prices on flights from Key West to Washington Dulles Airport?

    KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from Key West to Washington Dulles Airport.

  • How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from Key West to Washington Dulles Airport?

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Washington Dulles Airport from Key West is likely to change within 7 days, so travelers know whether to wait or book now.

  • What is the Hacker Fare option on flights from Key West to Washington Dulles Airport?

    Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional round-trip ticket. You could then fly to Washington Dulles Airport with an airline and back to Key West with another airline. Booking your flights between Key West and IAD can sometimes prove cheaper using this method.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from Key West to Washington Dulles Airport?

    Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying to Washington Dulles Airport from Key West up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

KAYAK’s top tips for finding a cheap flight from Key West to Washington, D.C. Dulles Intl Airport

  • Looking for a cheap flight? 25% of our users found flights on this route for $176 or less one-way.

Prefer to fly direct from Key West to Washington Dulles Airport?

 
Direct data is based off flight results for the next 60 days. Find direct flights from all airlines flying direct from Key West to Washington, D.C. Dulles Intl.
Find which airlines fly direct from Key West Airport to Washington, D.C. Dulles Intl Airport, which days they fly and book direct flights.

Direct departures

Key West to Washington, D.C. Dulles Intl

Monday

United Airlines

United Airlines

Tuesday

United Airlines

United Airlines

Wednesday

United Airlines

United Airlines

Thursday

United Airlines

United Airlines

Friday

United Airlines

United Airlines

Saturday

United Airlines

United Airlines

Sunday

United Airlines

United Airlines

See more direct flights

Direct returns

Washington, D.C. Dulles Intl to Key West

Monday

United Airlines

United Airlines

Tuesday

United Airlines

United Airlines

Wednesday

United Airlines

United Airlines

Thursday

United Airlines

United Airlines

Friday

United Airlines

United Airlines

Saturday

United Airlines

United Airlines

Sunday

United Airlines

United Airlines

See more direct flights

Reviews of the top airline flying from Key West to Dulles Intl

 
See real verified KAYAK customer reviews for airlines flying from Key West to Washington, D.C.. Airline scores are aggregated from all reviews left by passengers on KAYAK after flying with an airline. KAYAK doesn’t show reviews that are older than 5 years. Learn how KAYAK collects reviews.
Need help choosing which airline to fly with from Key West to Dulles Intl? KAYAK airline reviews give an overall score for each airline based on loads of factors, including comfort, boarding, in-flight entertainment and more, to make your decision easier. See airline scores according to verified KAYAK customer reviews.
7.9
DeltaOverall score based on 8151 reviews
8.5Crew
8.1Boarding
7.9Comfort
7.8Entertainment
7.2Food
Airline reviews

Comfort seating was on the tight side. Maybe it was a smaller plane(?)

10.0 ExcellentG, Feb 2026
FLL - ATL
Read more Delta reviews

Comfort seating was on the tight side. Maybe it was a smaller plane(?)

Excellent flight and got us around tough weather. Only issue was seat TV did not work and crew tried to reboot.

Connection through Atlanta was difficult. Mechanical issue on plane caused a two hour delay. New gate was a mile away.

No WiFi. Comfort plus should have alcohol provided, crew only offered water or tea. Who the heck wants tea?

I have diamond medallion status and usually we are in comfort plus . We were in main this time ( which was fine ) and my husband wanted wine . I have at least 10 vouchers for drinks that are good for this year and next! The attendant would not take the picture of the voucher as proof and never came back to check as She asked me to pull it up on delta Wi-Fi. Instead my husband just used his Amex to buy the wine . Disappointing!!!

Food is basically Sun Chips, cookies or Cheezits. I had an exit row seat so I had plenty of room. The crew was very nice and efficient. Pilot kept us informed. Pretty good flight.

Flight was delayed several times. At one point, they "pulled back" 15 minutes from the delayed boarding and sent a text saying we would board sooner than previously advised. The flight then was delayed again. And when we boarded, there was an unspecified technical issue which had us waiting in the plane for about an hour.

The only thing nice I can say is the flight crew was really nice and apologetic about the situation. They shared as much information as they had and advised us on what we could do about missing connecting flights. The boarding process was so slow. The gate agent was working by herself and should have had someone working with her. It took almost an hour to board because she was trying to board a full flight of people and provide customer service to everyone who was flying standby and/or had questions. It was really chaotic. This didn't help the fact that we were delayed and folks were missing connections the longer it took.

The food is terrible. The staff is wonderful. Comfort is good.

I fly Delta all the time, have Platinum Medallion status. But this route seems to have major problems with delays and seems to never leave on time! Have only taken it twice in the last two weeks, and each time it had delays of more than 1 hour... very disappointed!!!!

Everything you need to know for your flight from Key West to Dulles Intl

Information on your arrival and departure airports

Key West (EYW)
Dulles Intl (IAD)