IAD

$29 Find Cheap Flights from Florida Keys 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 to Dulles Intl departing on 5/24. 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.
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Cheap Flight Deals 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.

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

Recommended round-trip deals departing in the coming months from the most popular airlines that fly from Florida Keys to Dulles Intl.
Discover the best prices and deals for you by selecting your travel dates.
Choose your dates
12:25 pm - 3:05 pmMIA-IAD
2h 40mnonstop
3:55 pm - 6:35 pmIAD-MIA
2h 40mnonstop
$58Frontier
Find Deal
Thu, Jun 5 - Mon, Jun 9
12:25 pm - 3:05 pmMIA-IAD
2h 40mnonstop
3:55 pm - 6:35 pmIAD-MIA
2h 40mnonstop
$63Frontier
Find Deal
Sat, May 31 - Mon, Jun 2
12:25 pm - 3:05 pmMIA-IAD
2h 40mnonstop
3:55 pm - 6:35 pmIAD-MIA
2h 40mnonstop
$68Frontier
Find Deal
Fri, May 30 - Mon, Jun 2
8:40 am - 11:23 amMIA-IAD
2h 43mnonstop
7:30 pm - 10:22 pmIAD-MIA
2h 52mnonstop
$127United Airlines
Find Deal
Thu, Mar 20 - Mon, Mar 24
8:40 am - 11:23 amMIA-IAD
2h 43mnonstop
8:35 am - 4:45 pmIAD-MIA
8h 10m1 stop
$162United Airlines
Find Deal
Thu, Mar 20 - Mon, Mar 24
7:34 am - 7:19 pmMIA-IAD
11h 45m1 stop
12:11 pm - 11:23 pmIAD-MIA
11h 12m1 stop
$207Delta
Find Deal
Sat, Mar 29 - Tue, Apr 29
7:59 pm - 1:10 pmMIA-IAD
17h 11m1 stop
7:59 pm - 4:39 pmIAD-MIA
20h 40m1 stop
$216Delta
Find Deal
Wed, Mar 19 - Sat, Mar 22
6:01 am - 1:22 pmMIA-IAD
7h 21m1 stop
9:20 am - 5:00 pmIAD-MIA
7h 40m1 stop
$253American Airlines
Find Deal
Fri, Mar 21 - Wed, Mar 26
11:03 am - 4:57 pmMIA-IAD
5h 54m1 stop
5:28 pm - 10:50 pmIAD-MIA
5h 22m1 stop
$283American Airlines
Find Deal
Tue, Mar 18 - Fri, Mar 21
5:39 pm - 12:50 pmEYW-IAD
19h 11m2 stops
5:40 pm - 4:16 pmIAD-EYW
22h 36m2 stops
Thu, Apr 17 - Thu, Apr 24

Good to know

Low season

January

High season

May

Cheapest flight

$29
Best time to beat the crowds with an average 4% drop in price.
Most popular time to fly and prices are also 1% lower on average.
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.

See more FAQs

Top 5 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.
8.0
DeltaOverall score based on 8203 reviews
7.3Food
8.0Comfort
7.9Entertainment
8.2Boarding
8.5Crew
Airline reviews

The young man who was our flight attendant in first class was lazy and did not do his job well at all. Never offered drinks upon boarding - actually I take that back... said "are you okay with water" as if I do not want to get you anything else, only passed the snacks around once, got my drink order wrong and then never offered a second round of drinks. He was the worst I have ever seen on Delta and we fly a lot.

8.0 ExcellentAnonymous, Feb 2025EYW - ATL
Read more Delta reviews

The young man who was our flight attendant in first class was lazy and did not do his job well at all. Never offered drinks upon boarding - actually I take that back... said "are you okay with water" as if I do not want to get you anything else, only passed the snacks around once, got my drink order wrong and then never offered a second round of drinks. He was the worst I have ever seen on Delta and we fly a lot.

Flight left early and arrived early. the whole trip was excellent.

Newer plane, relatively easy boarding, not a full flight and was told that we could not be moved up because of weight and balance issues. Otherwise, a very good experience.

Everything was great. Great service, excellent communication, and early arrival

I sat in comfort plus. It was fine. Seats were comfortable. I got drinks and snacks.

Good and consistent Printer in lounge did not work for me :(

Great - This was the last flight before hurricane closures and did a quick turnaround to get the plane heading north. Much appreciated.

I liked the screens in the seat headrest with movies to watch. I didn’t like being forced to check my carryon bag and being told there wasn’t room for my bag - when there were 5 bins sitting empty on takeoff. I didn’t like the “I don’t give a fig” attitude of the flight attendants and the delta gate attendants when I asked why they decided to put me out. They gave me a 1800 number to call but I can’t get a live person on the phone. Customer service is non existent. My business must not be that important to them.

It was not in Delta's control, but when we landed, we ended up parking at the wrong gate, and so everyone was already ready to deplane and had their carryon bags, ready to leave. But we had to sit down and move to the proper gate. This process took over 30 minutes. Again, not Delta's fault - more so on the staff at JFK

It’s was good. There’s so much room for improvement though. Since the plane was small, there was no entertainment but for years now, the most jarring aspect of travel is the lack of tasty snacks.

Terrible. First of all we were delayed 4 3/4 hours departing Honolulu. As we had to leave our condo and the rental car had to be returned we had to go to the airport. Even though we had a business class boarding pass to Washington, since we did not have business class to Montreal we could not access the lounge without paying a $59 fee each. This does not make sense to us. Since we could not meet our original connection United booked us to Montreal via New York LaGuardia on Air Canada. In Washington a further delay got us into LaGuardia too late to make our connection to Montreal so we were booked on another Air Canada flight 3 hours later. We were originally scheduled to arrive in Montreal at 10:40 and arrived at 19:55. A totally exhausting day, United did not offer a meal voucher or any type of compensation. Air Canada did give us a digital meal voucher. The food in United business class is poor among all meals offered. The pods look nice but are not that confortable. Overall would not fly on United again.

Change cabin crew assisting business class. Not taking care, ignoring requests and calls. Never had such an experience in business class.

United left one of our bags back in SFO but that’s not my real complaint. The complaint is how it all went down. So we checked in the day before online and were told we could use the quick drop for luggage. So the next day I used baggage quick drop curbside at SFO. The agent mistakenly didn't tag my bag as he put my bag on the conveyor belt untagged. We immediately alerted him he had not tagged the bag. I walked with him to the baggage service office to find my bag and tag it. We waited outside the office for 10 mins. He came out and said everything was ok and the bag was going to be tagged and on my flight. We received a text that one of our bags was on the flight but the other was not. I alerted my first class flight attendant immediately upon boarding the flight. She was helpful and said she’d get it sorted out right away. She called over the gate agent. The gate agent used my bag number and looked over information on her device. She said my bag was on the flight. The flight attendant was standing with her, looking at the device, and also said “yep it’s on the flight”. During the flight the flight attendant made reference to how reassuring it must feel knowing the bag was on the flight. Upon arriving to IAD we received a text that my bag was not on my flight. The text said my bag would arrive to my final destination LIS 24 hrs late. I understand that mistakes happen. I was totally ok with my bag mistakenly not getting tagged at the quick drop. I was fine with walking down to baggage services to tag my bag. But, what I am not ok with is that the United staff said they fixed the mistake two different times, assuring me twice that my bag would be/was on the plane…and it wasn’t. I expected better attention by the employees, for them to do what they said they were going to do. We also spent extra money to upgrade our seats to first class, including the entire return leg from Lisbon to San Francisco because we wanted a smoother and more relaxing travel experience. Our money was not well spent. We will not be using United for travel going forward.

The flight was delayed, it took longer than anticipated because of weather, and they broke my luggage.

Horrifying! And I am almost 2 million miles with United. Late by 3 1/2 hours. Worst: after two hours on the plane waiting, they decided that one of the tires had been damaged and then decided to change it. Another hour and a half to change the tire!!!!! NO EXCUSE FOR THIS. The crew didn't even offer a glass of water until we had been on the plane for FIVE hours. This is the worst airline in the world. I'm simply stuck because they fly on the only routes I need.

Gate got changed about 4 times. Very confusing and very crowded. If you don’t have wifi to help get updates, you can be in deep trouble.

Attendants zipped through cabin so fast hardly anyone got the water they told us we could have in the short flight. Nothing else was offered.

Sucks ! All three flights I was on this trip were delayed.

The flight attendants were unhelpful. It was a packed flight, and usually a flight attendant would help find a spot in the bin for your carry on or shift things around. Neither made any effort to do so. Also, I had to then check my bag. I was told it would be on the carousel in YYZ, but it came up on the jetway. So lucky I saw others standing around for their bags. I would have walked straight past this and on to the carousel. They could have at least told me that they had given me wrong information. Very unsatisfactory.

The crew was outstanding. And the food was surprisingly good. The chicken and the pasta dish were both delicious and I was supposed with a pizza twist near Landing. We hit a lot of turbulence and the crew was calm and kind. Loved the TV in screen. Tons of new releases.

the pilot that landed this flight in Philadelphia did an amazing job, the weather was absolutely terrible and we landed safely.

Per usual, flight status, staff courtesy and professionalism were excellent

Great experience. Flight boarded easily. Departed early. Smooth flight. Great arrival in DC--almost no taxing! Almost direct to gate from runway. Crew was terrific. Same cookies and beverages in main cabin. I did not use the entertainment system on this flight.

Flight delayed on both ends - have a gate ready at DCA, don't make us sit for 30min after being late to take off as well.

The seats were crammed and the guy in front of me wouldn't stop reclining. If AA is cramming extra rows in, they need to take away the reclining in coach. My knees were smashed for 4 1/2 hours and I was very close to confronting the passenger in front of me.

AA can't control the weather. But the airplane was hot and stuffy while stuck on the runway with a broken entertainment system.

The flight was just perfect! We left a few minutes early, had a smooth flight and fortunately had landed before the terrible accident that took off from North Philadelphia airport shortly thereafter.

very bare bones flight no entertainment screen, download shows prior to boarding to watch on phone or tablet.

It was good. It’s been a long time since my wife and I fly any where and things have changed. Our trip was to see our new grandson. We fly economy and that was not good for my bad back. It was a quick flight but uncomfortable.

Service in first class no longer exists on American Airlines .

The flight took an extra 30 min to take off because we were waiting for crew to board then it took another 30 min to get off the plane because there was no parking. Just overall ridiculous also please add a head rest my neck was gonna snap off thanks.

Overall experience felt smooth and well-run. Inexpensive direct flight was great. Extreme "a-la-carte" business model got tiresome after a while. The $8 soft drink in-flight just felt excessive. Thin, hard, tightly-spaced seats were uncomfortable.

Not bad but I was told that I got a 1 carry. When I got to the gate I was told my purse was considered my carry on. I had never been told that before.

Lower cost is the reason to fly Spirit. Should give free baggage with credit card.

From gate to flight crew... All Spirit employees were great! Everyone was kind and helpful. Ride was almost smooth... A few bumps... But no problems. Seats were tight and uncomfortable. Our biggest issue was no free drinks. I can understand paying for adult beverages and can understand no snacks on a 3 hour flight... But no drinks???? I had to pay $4 for an apple juice for my son. That's not right. You should probably reconsider that.

Great! First time flying with Spirit and I definitely loved it!

Better service, stop treating people like cattle, have REAL FOOD for the price of the ticket. YOU ARE IN BANKRUPTCY, WAKE UP!!! ... DO BETTER, PLAN BETTER, GIVE COMFORT AND CARE TO PASSENGERS ... EARN RESPECT AND ADMIRATION, YOU'LL BE REWARDED BY THE PUBLIC.

The check-in process at Spirit was horrible. There was no one directing the hundreds of people trying to check-in and drop bags at Spirit. We got in multiple lines and were later told it wasn’t a line. The check-in process needs to be improved. The flight and crew were great.

Absolutely Terrible. It was delay after delay after delay. I should have been arriving in Philadelphia at 12:05am from Fort Lauderdale instead I didn’t depart from Fort Lauderdale until 12:33am with no rhyme or reason as to why the flight was delayed. The only compensation we received were 12 dollar meal vouchers which by that time we were already boarding the plane and most of the place in the airport were closed so none of the vouchers got used because we were told that we could not use them on the plane .

It wasn't crowded, leg room was better for me (6'2"), less coughing on board, steady flight. Return flight is already delayed by 1.5hrs and that's not good.

The worst service , the agents from the counter are really bad . Poor customer service . They didnt help me to get in the flight . I was on line when they close the flight without telling and I couldn’t board the plane . I will like to get my money back ey back because it was their fault. Really bad management , bad manners, bad additud

The check in process was a mess for no reason. I spent an hour waiting in line trying to get them to print my boarding pass and as a result I missed my flight.

After waiting several minutes to be acknowledged by 3 employees on their phones, was told we had missed our flight because the doors were closed at that literal moment. Had they given any actual service or help while we were standing there we would have been on with time to spare. More than 10 people were turned away in this fashion claiming there was no way they could let us on the plane, even though it was still sitting connected to the terminal. After the desk agents let us know they didn't care about the situation we were forced to pay more than twice the price of our original tickets as no credits were given for the price of the "missed" flight. And the icing on the cake was after being treated poorly, fleeced for another few hundred dollars for new tickets? We waited on the next plane for 25 minutes passed the "doors closed" time, letting almost an extra dozen passengers on board. You're company has lazy, disinterested employees and your lack of any real help will ensure this was the first and last time we fly Frontier. Awful.

The seats were extremely hard and uncomfortable. It was disappointing even for a budget airline.

Charging $74 for one checked bag is outrageous. I will never fly Frontier again.

One crew member was rude about our bags. Be nice about it. We don’t fly a lot. And the fact that you have to pay for a carry on is ridiculous

At check in they don’t let you be with the person you are traveling with unless you pay $40 per seat . Really bad policy they have

The trip was unremarkable which is good. Crew was very professional and courteous.

Online check-in was not user-friendly. Too many fees, not cost effective.

FRONTIER SUCKS! The agent downstairs tricked me into booking, just to get to the gate. At the gate, they told me they couldn't help. I then called Customer Service. They and the gate attendants kept blaming each other. Neither side was willing to help the customer.

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