IAD

$88 Find Cheap Flights from Florida Keys to Washington, D.C. - Compare and Save

1 adult
1 adult, Economy, 0 bags

Save 21% or more on flights. Compare deals from all over the web.

Never overpay with our price tracking tools.

Filter searches by price, airline and more to find your best flights.

Flight Deals
Useful Info
Flight Deals

Cheap Flights from Florida Keys to Dulles Intl

 
Discover the best prices for you by selecting your travel dates on KAYAK.

Recent round-trip flight deals from Florida Keys to Dulles Intl

Wed, Oct 7 - Wed, Oct 14
Frontier Logo
5:32 am - 5:18 pmMIA  Miami-IAD Washington, D.C. Dulles Intl
11h 46m1 stop Atlanta Hartsfield-Jackson
Frontier Logo
7:50 am - 2:18 pmIAD  Washington, D.C. Dulles Intl-MIA Miami
6h 28m1 stop Atlanta Hartsfield-Jackson
$159Frontier
Tue, Oct 6 - Wed, Oct 14
Frontier Logo
5:32 am - 5:18 pmMIA  Miami-IAD Washington, D.C. Dulles Intl
11h 46m1 stop Atlanta Hartsfield-Jackson
Frontier Logo
7:50 am - 2:18 pmIAD  Washington, D.C. Dulles Intl-MIA Miami
6h 28m1 stop Atlanta Hartsfield-Jackson
$159Frontier
Wed, Oct 14 - Wed, Oct 21
Frontier Logo
3:23 pm - 12:21 amMIA  Miami-IAD Washington, D.C. Dulles Intl
8h 58m1 stop Atlanta Hartsfield-Jackson
Frontier Logo
12:30 pm - 9:59 pmIAD  Washington, D.C. Dulles Intl-MIA Miami
9h 29m1 stop Dallas/Fort Worth
$159Frontier
Wed, Oct 14 - Wed, Oct 21
United Airlines Logo
1:26 pm - 3:59 pmMIA  Miami-IAD Washington, D.C. Dulles Intl
2h 33mnonstop
United Airlines Logo
8:25 am - 11:20 amIAD  Washington, D.C. Dulles Intl-MIA Miami
2h 55mnonstop
$177United Airlines
Tue, Oct 13 - Tue, Oct 20
United Airlines Logo
1:26 pm - 3:59 pmMIA  Miami-IAD Washington, D.C. Dulles Intl
2h 33mnonstop
United Airlines Logo
8:25 am - 11:20 amIAD  Washington, D.C. Dulles Intl-MIA Miami
2h 55mnonstop
$177United Airlines
Sat, Oct 10 - Tue, Oct 20
United Airlines Logo
1:26 pm - 3:59 pmMIA  Miami-IAD Washington, D.C. Dulles Intl
2h 33mnonstop
United Airlines Logo
8:25 am - 11:20 amIAD  Washington, D.C. Dulles Intl-MIA Miami
2h 55mnonstop
$177United Airlines
Sat, Oct 24 - Wed, Oct 28
Delta Logo
8:00 am - 4:16 pmMIA  Miami-IAD Washington, D.C. Dulles Intl
8h 16m1 stop Detroit Metropolitan Wayne County
Delta Logo
6:12 pm - 12:53 amIAD  Washington, D.C. Dulles Intl-MIA Miami
6h 41m1 stop Atlanta Hartsfield-Jackson
$197Delta
Tue, Oct 6 - Tue, Oct 13
Delta Logo
11:47 am - 5:33 pmMIA  Miami-IAD Washington, D.C. Dulles Intl
5h 46m1 stop New York John F Kennedy Intl
Delta Logo
10:14 am - 3:19 pmIAD  Washington, D.C. Dulles Intl-MIA Miami
5h 05m1 stop Atlanta Hartsfield-Jackson
$197Delta
Sat, Oct 24 - Tue, Oct 27
American Airlines Logo
5:32 pm - 11:58 pmMIA  Miami-IAD Washington, D.C. Dulles Intl
6h 26m1 stop Charlotte Douglas
American Airlines Logo
6:25 pm - 11:50 pmIAD  Washington, D.C. Dulles Intl-MIA Miami
5h 25m1 stop Charlotte Douglas
$279American Airlines
Thu, Oct 22 - Tue, Oct 27
American Airlines Logo
7:02 pm - 11:58 pmMIA  Miami-IAD Washington, D.C. Dulles Intl
4h 56m1 stop Charlotte Douglas
American Airlines Logo
6:15 am - 11:15 amIAD  Washington, D.C. Dulles Intl-MIA Miami
5h 00m1 stop Charlotte Douglas
$279American Airlines
Useful Info

Good to know

Low season

January

Cheapest flight

$88
Best time to beat the crowds with an average 4% drop in price.
Most popular time to fly and prices are also 12% lower on average.
Flight from Key West to Washington Dulles Airport

FAQs for booking Florida Keys to Washington, D.C. flights

  • How does KAYAK find such low prices on flights from Florida Keys to Washington, D.C.?

    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 Florida Keys to Washington, D.C..

  • How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from Florida Keys to Washington, D.C.?

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Washington, D.C. from Florida Keys 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 Florida Keys to Washington, D.C.?

    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, D.C. with an airline and back to Florida Keys with another airline.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from Florida Keys to Washington, D.C.?

    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, D.C. from Florida Keys up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

Reviews of the top 3 airlines serving from Florida Keys to Dulles Intl

 
Need help choosing which airline to fly with from Florida Keys 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.
7.8
DeltaOverall score based on 8581 reviews
8.1Boarding
7.2Food
7.8Comfort
7.8Entertainment
8.5Crew
Airline reviews

Sat in the plane at the gate in SLC for 2+ hours before take off, getting me home nearly 3 hours later than planned.

2.0 MediocreAndrew, Sep 2026
Read more Delta reviews

Sat in the plane at the gate in SLC for 2+ hours before take off, getting me home nearly 3 hours later than planned.

Really hard to tell what was happening after my flight got delayed five times

I’m on this flight every other week. Same flight, same day of the week, same time of day… Multiple times there are issues getting flight plan registered and FAA approved r to take off. PAPERWORK This is exhausting and it sucks.

Chaotic boarding at these gates, multiple gates squeezed in at the very end of a concourse, behind a restaurant. Agents gave up on boarding by individual zones. Flight itself was uneventful, which is all we hope for any more.

Flight delayed due to ground hold. Republic airways did a great job.

The flight was smooth, the crew was great but the plane was quite old

Flight was warm for first few hours and quite rough

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 Dekta Rep that checked us in was great. She's very personable, pleasant, and can tell she enjoys her job.

1st flight had mechanical issues after we boarded and almost took off. They tried to fix on runway but couldn’t do we went back to the gate. They couldn’t fix it there either. So we had to deplane and board another plane 2 hrs later. All in all our flight was delayed 4 hrs so we had to cancel some business meeting we had in London for the morning since we were supposed to arrive at 7am and did not arrive until 11:45am. Also, the 2nd plane had mechanical issues as well but fortunately they were able to fix on runway.

Awful!!!. I do not recommend United. The flight staff are unhappy and don't attempt to make the passengers feel comfortable or welcome. The food is not edible, and the seats are miserable. My expensive luggage was destroyed, and the ticket prices are too much for the experience.

Did not like the check in guy quibbling over a couple pounds at the luggage weigh in

This is related to my second leg of the flight, from Washington DC to SFO. I understand things happen, but I got home at 3 am for a 12:59 am landing. I live 10 min from the airport. Bridge breaks when a few rows of the plane are off? Maintenance didn’t catch that?

Horrible I am at almost 2,000,000 miles on United. This was probably the worst flight ever. An hour and a half before takeoff I get a message that they’re changing the plane and I no longer have a seat in Polaris business Supposedly, there was a problem with the plane, but then there was no other plane Finally, they decided to bring a plane from Newark to Washington Dulles Of course the original flight was at 10:45 PM so by the time the plane got there it was 12:30 AM. It had not been cleaned. It had not been catered. They don’t really have people available to do those things when it’s not pre-programmed at 1 o’clock in the morning. The crew had to be changed And the new plane held 28 fewer people than the scheduled plane There is no way you can hate United Airlines enough The people at the gate were actually just fine, but it was management who was completely useless And did they send extra help to the people at the gate? Did they send supervisors? Of course not. Just don’t take United find somebody else or buy a boat

It's a short hop. My carryon was checked at the gate, I didn't have to drag it all over the airport. Excellent wheelchair assist.

United is one airline which regardless of how many separate United tickets in existence, if one flight breaks down, the airline will take care of all the flights.

It is clear that someone knew, and competent, is in charge of food at United Airlines at least for the international flights. I was flying in coach, but the choices of the dinner were excellent. Tasty, and appropriate size. I had the beef, which was a little bit like a shepherds pie, and it was good. Nothing comparable has been served on a United flight in years. It will not be confused with three star food, but it is very good for airline food. Even better was the breakfast choice between a cinnamon roll and a breakfast sandwich. I chose the breakfast sandwich which was absolutely delicious and which I would happily order again at my local Starbucks or Panera. It is clear that someone knew indifferent is in charge of the food and it’s about time.

Flight was delayed in the gate by 5 hours and ultimately cancelled- rebooking service by United agents was terrible

Crowded flight, but upbeat and kind crew. Pilot greeted us at door, flight attendant thanked a number of “special” passengers for their business, another addressed an eight-year old boy as “young man.” United obviously trying to up their game, but though all of that is nice and notable, flying still feels like moving along a human assembly line, being herded into one small space after another (boarding areas with too few seats, planes with limited personal space, shuttles (IAD) packed too full.

Good flight, comfortable seats and very quick passage through Heathrow. Boarding in Washington was cramped and not well organized, but the rest was perfect.

Flight delayed 9 hours. On tarmac for over an hour after arrival. Will never book with Frontier under any circumstances ever again.

When I was boarding my departure from Raleigh to Orlando I was inappropriately scolded by a female dog named Mia because I didn’t pay in advance for my carry on bag ($75). Frontiers website is confusing regarding pre-paying for carryons so it was a simple mistake. I also had paid for “upfront plus” meaning me and my son were seated in the front row with no one in the middle seat ($450 upgrade). When we were boarding Mia said “sir, you didn’t pay for your carryon” in a not so polite tone and told me to get out of line and come back to the counter to pay for my carryon. The way they had the retractable rope left me no room to circle back without making the people behind me move so I just stood there and then she said a second time “sir!! Go pay for your carryon” in an embarrassing tone. I then moved their rope so I could get back to the counter when a second female dog then asked “are you done!?!?” because I had said “do you want me to bulldoze the people behind me?” I then said you do realize I paid over $400 for upfront plus so I was certainly not trying to sneak a carryon bag without paying. Long story short, I am soooo done with discount airlines!!! By the time you pay for all the “extras” you might as well have paid for Delta Southwest or American! Frontier airlines sucks and I was embarrassed by a female dog named Mia!!!

Frontier feels like a family I Worked for Eastern Airlines back in the day and I felt the family vibe that I had then. Thank you

Crew was kind of grumpy and there was no beverage service at all. Sodas were $4. Disappointing.

It was an early flight and most people napped/slept and the crew let us which was nice.

There's no seats that lean back with little leg space i wad uncomfortable the entire flight. Your charges for extra baggage is despicable and costly!!

There was no food and no entertainment, so I'm not sure why these are even in the survey, as my understanding is frontier does not ever offer food without a few, not even a snack, and there are no screens so unless the flight safety talk is our entertainment why ask how we liked it?. One of the flight attendants say in the back of the plane as people filed in to their seats, yelling orders about where to put baggage and telling people to hurry up. It was the least professional experience I've ever had on a flight.

It didn’t happen. I booked it and then was told it wasn’t available and then forced to pay far higher prices for a worse option

This company socks. It's fraud. They canceled our flight yesterday, and today we were late because of a really long line at the check in bag. At the rebook station, there was ton of people. The workers were all rude. I am gonna make a report to FTC.

The worst. We never made our connection and they did absolutely nothing to help us at the airport.

Traveling to a place near Dulles Intl?

Book flights to Dulles Intl if you plan to visit one of these locations
Winchester
Linthicum Heights
Hanover
Springfield
Gaithersburg
Towson
Martinsburg
Oxon Hill
Owings Mills
Charles Town
Greenbelt
Glen Burnie
Edgewood
Chesapeake Beach
Camp Springs
Ellicott City
Pikesville
Hunt Valley
Colonial Beach
Capitol Heights

More options for your flight to Dulles Intl