IAD

$100 Find Cheap Flights from Florida Keys to Washington Dulles Airport - Compare and Save

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight to Dulles Intl departing on 7/15. 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

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Flight Deals

Cheap Flights from Florida Keys to Dulles Intl

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from Florida Keys 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 Florida Keys to Dulles Intl

Wed, Aug 5 - Tue, Aug 11
United Airlines Logo
1:10 pm - 3:53 pm
MIA
-
IAD
2h 43mnonstop
United Airlines Logo
8:16 am - 11:11 am
IAD
-
MIA
2h 55mnonstop
$157United Airlines
Tue, Sep 22 - Tue, Sep 29
Delta Logo
7:10 am - 2:18 pm
MIA
-
IAD
7h 08m
1 stop
Delta Logo
12:31 pm - 7:05 pm
IAD
-
MIA
6h 34m
1 stop
$177Delta
Wed, Aug 5 - Tue, Aug 11
United Airlines Logo
5:22 pm - 11:19 pm
MIA
-
IAD
5h 57m
1 stop
United Airlines Logo
8:16 am - 11:11 am
IAD
-
MIA
2h 55mnonstop
$181United Airlines
Wed, Sep 30 - Sat, Oct 3
United Airlines Logo
1:26 pm - 3:59 pm
MIA
-
IAD
2h 33mnonstop
United Airlines Logo
6:45 am - 2:51 pm
IAD
-
MIA
8h 06m
1 stop
$183United Airlines
Tue, Sep 22 - Mon, Sep 28
Delta Logo
8:25 am - 2:18 pm
MIA
-
IAD
5h 53m
1 stop
Delta Logo
7:16 pm - 12:55 am
IAD
-
MIA
5h 39m
1 stop
$193Delta
Thu, Sep 10 - Sat, Sep 12
United Airlines Logo
1:44 pm - 4:17 pm
MIA
-
IAD
2h 33mnonstop
United Airlines Logo
8:16 am - 11:11 am
IAD
-
MIA
2h 55mnonstop
$197United Airlines
Thu, Jul 9 - Sun, Jul 12
Multiple Airlines Logo
7:53 pm - 11:43 am
EYW
-
IAD
15h 50m
1 stop
Multiple Airlines Logo
5:25 pm - 6:28 pm
IAD
-
EYW
25h 03m
2 stops
$346Multiple Airlines
Mon, Jun 29 - Mon, Jul 6
Multiple Airlines Logo
3:25 pm - 12:53 pm
EYW
-
IAD
21h 28m
1 stop
Multiple Airlines Logo
8:25 am - 6:28 pm
IAD
-
EYW
10h 03m
2 stops
$382Multiple Airlines
Fri, Jul 3 - Sat, Jul 11
American Airlines Logo
7:33 pm - 12:10 am
EYW
-
IAD
4h 37m
1 stop
American Airlines Logo
1:16 pm - 6:48 pm
IAD
-
EYW
5h 32m
1 stop
$409American Airlines
Fri, Jul 3 - Sat, Jul 11
American Airlines Logo
7:33 pm - 12:10 am
EYW
-
IAD
4h 37m
1 stop
American Airlines Logo
1:16 pm - 6:48 pm
IAD
-
EYW
5h 32m
1 stop
$410American Airlines
Useful Info

Good to know

Low seasonJanuary
Cheapest flight$100
Best time to beat the crowds but there is an average 4% increase in price.
Most popular time to fly with an average 11% increase in price.
Flight from Miami to Washington Dulles Airport

FAQs for booking Florida Keys to Washington Dulles Airport flights

  • How does KAYAK find such low prices on flights from Florida Keys 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 Florida Keys to Washington Dulles Airport.

  • How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from Florida Keys 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 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 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 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 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 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 airlines flying 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.
7.4
United AirlinesOverall score based on 9831 reviews
8.1Crew
7.7Boarding
7.3Comfort
6.6Food
7.1Entertainment
Airline reviews

Our flight was delayed 2.5 hours from Lisbon to DC so we missed our connection to Seattle that would have arrived at about 9 PM. The agent initially said we had to stay overnight in DC and there were no other options to put us on to get us to Seattle. While on board I discovered a flight via American he could have put us in but by the time we arrived in DC that was sold out. We were then put on a flight to San Francisco that was also delayed then arrived in San Francisco and our flight to Seattle was also delayed so we ended up not arriving until 2:15 am. Our son could not pick us up so we ended up having to pay over $100 to Uber home. This is the second trip with United that the flight has been delayed causing us to miss an evening in Las Vegas and we were given nothing.

2.0 MediocreLinda, Jun 2026
LIS - IAD
Read more United Airlines reviews

Our flight was delayed 2.5 hours from Lisbon to DC so we missed our connection to Seattle that would have arrived at about 9 PM. The agent initially said we had to stay overnight in DC and there were no other options to put us on to get us to Seattle. While on board I discovered a flight via American he could have put us in but by the time we arrived in DC that was sold out. We were then put on a flight to San Francisco that was also delayed then arrived in San Francisco and our flight to Seattle was also delayed so we ended up not arriving until 2:15 am. Our son could not pick us up so we ended up having to pay over $100 to Uber home. This is the second trip with United that the flight has been delayed causing us to miss an evening in Las Vegas and we were given nothing.

MY FAMILY'S LUGGAGE WAS LOST FROM ROME TO BARI. I WAS THE ONLY ONE THAT RECEIVED MY LUGGAGE FROM ROME TO BARI. AFTER DEPLANING IN BARI, WE WASTED A LOT OF TIME AT BAG CLAIMS LOST AND FOUND REPORTING THE CLAIM AND PLEADING FOR THE BAGS TO BE DELIVERED THE NEXT DAY. WE WERE TOLD THAT IT TAKES 3 DAYS MINIMUM TO DELIVER. MY DAUGHTER AND MY GIRLFRIEND NEEDED THEIR PERSONAL THINGS AND WE WERE STAYING 3 HOURS AWAY FROM THE BARI AIRPORT. WE HAD TO DRIVE 3 HOURS TO THE AIRPORT TO COLLECT OUR LOST LUGGAGE THE NEXT DAY. WE ARE NOT HAPPY WITH THE EXPERIENCE

There were no facilities in the middle of the aircraft and premium economy was not allowed to use the business class facilities, and had to share the only two toilets at the back with economy. The upgrade to Premium was definitely not worth it

Our flight to Rome, Italy was cancelled the day of and we were never informed. We only found out because I was trying to get into my husbands account and called to get his account number. Had to pay more for worse seating on another airline.

The economy seat was much less comfortable for an international flight in terms of recline and moving space when food tray is expanded. Per entertainment, it would be amazing if I could connect my Bluetooth headset or ear phones to the entertainment screen. Or provide in-flight wifi to connect directly from my own device.

We were a little disappointed to not be able to complete check in online without uploading pics of passports. Also we have KTN's and they weren't on our boarding passes when we got to security. Had to trek back to counter to have them fix.

Excellent service in Polaris class IAD to ZRH. Arrived rested and well fed after the overnight flight.

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.

Was great in general, try to respect time and excuses when slight changes have been made, appreciated!

Terrific in every way. On time, professional staff, multiple movie options to select, great food and drink.

There weren't enough employees at check in took awhile to get bags checked. There wasn't a wheel chair for me, I was sent to someone who turns out to work for a different airline, if My flight hadn't been delayed I probably would have missed my flight as it was, by the time I arrived at my gate, they started boarding in about 15 minutes. I don't know who took me to my gate, definitely was not the normal people who take passengers to the gate. I'm guessing she may have been in a management position. I wish I knew her name, she went beyond to help me. With that said everyone was kind, and were doing the best they could. So, I choose to say it was an Adventure, stressful start, but good. In the end went well. The situation was not only difficult for passengers but the employee's.

The staff at the check in counter was so rude. Made you feel Incompetent

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.

Flight got delayed for 5 hours no good explanation was offered ;(

There was no one at the counter to assist with our check in. The app didn’t work, so I arrived at the airport with time to check in and I couldn’t because no employees were there. When I finally got someone on the phone, it was inside the 60min rule and they said I could no longer check in and they could sell me another ticket. We had to scramble and pay an additional $800 for tickets and THEN AFTER (about 60 min from my original convo with customer service and 10min after original departure time) I had boarded my new flight, there was email saying my original flight from Frontier was delayed and leaving 2hr 50min later, but I STILL wouldn’t have been able to check in. Which means customer service should have been able to see it and let me check in because I was well within my check in time. When I call Frontier, they hang up on me. So their app didn’t work and they employees left and they take zero responsibility or assistance with their “customer service”

Everyone seemed to be in zone 1 for boarding. Maybe break it up a little. Otherwise, smooth flight.

Traveling to a place near Dulles Intl?

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

Everything you need to know for your flight to Dulles Intl

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