MIA - IAD

$71 Find Cheap Flights from Miami 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 Miami to Dulles Intl departing on 4/8. 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 Miami 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 Miami to Washington, D.C., as well as popular online travel agencies
Travelers love KAYAK
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Everything you should know

Cheapest round-trip
$108
Overall average: $217
Frontier
Wed 4/8Sun 4/12
MIA - IAD • 1 stop
Cheapest non-stop
$117
Typical prices: $137-$261
Frontier
Thu 4/2Sun 4/5
MIA - IAD • Non-stop
Advice from real travelers
AI-powered summary based on content written by travel experts. AI can make mistakes.
United's Economy Plus offers extra legroom for comfort.
The Silver Line Metro connects IAD to downtown D.C.
Expert advice
Expert advice
Expert advice
Expert advice
Top airlines
Frontier
Cheapest • from $108 (round-trip)
United Airlines
Best reviews • 7.4 score
Airline reviews
Airline reviews
+1
+1
Airline reviews
Airline reviews
+1
Nonstop flights
Every day
You can fly direct with United Airlines and Frontier. Average duration is 2h 45m
Direct flights
Direct flights
+1
+1
Direct flights
Direct flights
+1
Avoid delays
United Airlines
Most punctual • 89% on-time
Morning flights
Best time • Fewest delays
Insights
Insights
Insights
Insights
When to book
2 weeks
in advance
Our data shows that travelers who book at least 2 weeks in advance save around 16% compared to booking last minute.
Insights
Insights
Insights
Insights
When to travel
November
Cheapest • 27% price drop
June
Most popular
Good to know
Good to know
+1
+1
Good to know
Good to know
+1
Start a new search
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 Miami to Dulles Intl (MIA-IAD)

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

Wed, Apr 8 - Sun, Apr 12
Frontier Logo
7:12 pm - 12:36 am
MIA
-
IAD
5h 24m
1 stop
Frontier Logo
10:13 pm - 1:14 am
IAD
-
MIA
3h 01mnonstop
$108Frontier
Sat, Mar 28 - Sun, Apr 5
Frontier Logo
5:05 am - 12:31 am
MIA
-
IAD
19h 26m
1 stop
Frontier Logo
10:13 pm - 1:14 am
IAD
-
MIA
3h 01mnonstop
$111Frontier
Thu, Apr 2 - Sun, Apr 5
Frontier Logo
6:33 pm - 9:18 pm
MIA
-
IAD
2h 45mnonstop
Frontier Logo
10:13 pm - 1:14 am
IAD
-
MIA
3h 01mnonstop
$117Frontier
Thu, Apr 9 - Mon, Apr 13
Frontier Logo
6:33 pm - 9:18 pm
MIA
-
IAD
2h 45mnonstop
Frontier Logo
10:25 pm - 12:49 am
IAD
-
MIA
26h 24m
1 stop
$119Frontier
Wed, Apr 8 - Fri, Apr 10
Frontier Logo
7:12 pm - 12:36 am
MIA
-
IAD
5h 24m
1 stop
Frontier Logo
2:47 pm - 5:39 pm
IAD
-
MIA
2h 52mnonstop
$121Frontier
Wed, May 6 - Sat, May 9
Frontier Logo
12:26 pm - 12:36 am
MIA
-
IAD
12h 10m
1 stop
Frontier Logo
7:05 am - 5:57 pm
IAD
-
MIA
10h 52m
1 stop
$124Frontier
Thu, Apr 2 - Sun, Apr 5
Frontier Logo
9:10 am - 4:39 pm
MIA
-
IAD
7h 29m
1 stop
Frontier Logo
10:13 pm - 1:14 am
IAD
-
MIA
3h 01mnonstop
$128Frontier
Fri, Apr 10 - Tue, Apr 14
Frontier Logo
11:17 am - 2:02 pm
MIA
-
IAD
2h 45mnonstop
Frontier Logo
6:05 am - 11:41 am
IAD
-
MIA
5h 36m
1 stop
$129Frontier
Tue, Mar 31 - Sun, Apr 5
Frontier Logo
12:26 pm - 12:31 am
MIA
-
IAD
12h 05m
1 stop
Frontier Logo
10:13 pm - 1:14 am
IAD
-
MIA
3h 01mnonstop
$130Frontier
Wed, May 6 - Sat, May 9
Frontier Logo
7:04 pm - 8:56 am
MIA
-
IAD
13h 52m
1 stop
Frontier Logo
7:05 am - 5:57 pm
IAD
-
MIA
10h 52m
1 stop
$131Frontier
Booking Insights

KAYAK's insights & trends for Miami to Dulles Intl flights

Get data-powered insights and trends into flights from Miami 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 Miami to Washington Dulles Airport?

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

For Miami to Washington Dulles Airport, Friday is the cheapest day to fly on average and Tuesday is the most expensive. Flying from Washington Dulles Airport back to Miami, the best deals are generally found on Monday, with Wednesday being the most expensive.

What is the cheapest month to fly from Miami to Washington, D.C. Dulles Intl Airport?

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for round-trip flights from Miami to Washington, D.C. Dulles Intl Airport, removes the top 0.1% to account for outliers, and then takes the median of all values for each month.

The cheapest month for flights from Miami to Washington, D.C. Dulles Intl Airport is November, where tickets cost $126 (return) on average. On the other hand, the most expensive months are March and April, where the average cost of round-trip tickets is $232 and $217 respectively.

How far in advance should I book a flight from Miami to Washington, D.C. Dulles Intl Airport?

To calculate weekly average prices, KAYAK takes all prices for each week before departure over the last year for round-trip flights from Miami to Washington, D.C. Dulles Intl Airport, removes the top 0.1% to account for outliers, and then takes the average of all the values for each week.

To get a below average price on the flight from Miami to Washington, D.C. Dulles Intl Airport, you should book around 2 weeks before departure, which saves you about 16% compared to booking last minute. For the absolute cheapest price, our data suggests you should book 11 weeks before departure.

Expert advice

Expert advice for your flight from Miami 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
Stefanie Waldek

Stefanie Waldek

Expert on Frontier, United Airlines, MIA and 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.

Good to know

Low seasonFebruary
Cheapest flight$71
Best time to beat the crowds but there is an average 14% increase in price.
Most popular time to fly and prices are also 6% lower on average.
Flight from Miami to Washington Dulles Airport

When to book flights from Miami to Dulles Intl

Are your dates flexible? Find out the best times to travel from Miami 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 Miami to Washington Dulles Airport flights

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

    In the last 3 days, the lowest price for a flight from Miami to Washington, D.C. Dulles Intl Airport was $71 for a one-way ticket and $108 for a round-trip.

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

    No

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

    When flying out of Miami you will be using Miami. You will be landing at Washington Dulles Airport, also known as Washington, D.C. Dulles Intl.

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

    American Airlines, Delta, JetBlue, and British Airways offer inflight Wi-Fi service on the Miami to Washington Dulles Airport flight route.

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

    The Boeing 737-800 is the aircraft model that flies most regularly on the Miami to Washington Dulles Airport flight route.

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

    oneworld, and Star Alliance are the airline alliances operating flights between Miami and Washington Dulles Airport, with oneworld being the most commonly used for this route.

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

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

  • Which is the best airline for flights from Miami to Washington, D.C., United Airlines or American Airlines?

    The two airlines most popular with KAYAK users for flights from Miami to Washington, D.C. are United Airlines and American Airlines. With an average price for the route of $241 and an overall rating of 7.4, United Airlines is the most popular choice. American Airlines is also a great choice for the route, with an average price of $286 and an overall rating of 7.1.

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

  • How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from Miami 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 Miami 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 Miami 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 Miami with another airline. Booking your flights between Miami 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 Miami 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 Miami 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 Miami to Washington, D.C. Dulles Intl Airport

  • Looking for a cheap flight? 25% of our users found flights on this route for $180 or less one-way and $200 or less round-trip.

Prefer to fly direct from Miami 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 Miami to Washington, D.C. Dulles Intl.
Find which airlines fly direct from Miami Airport to Washington, D.C. Dulles Intl Airport, which days they fly and book direct flights.

Direct departures

Miami to Washington, D.C. Dulles Intl

Monday

Frontier, United Airlines

Frontier, United Airlines

Tuesday

United Airlines

United Airlines

Wednesday

United Airlines

United Airlines

Thursday

Frontier, United Airlines

Frontier, United Airlines

Friday

Frontier, United Airlines

Frontier, United Airlines

Saturday

Frontier, United Airlines

Frontier, United Airlines

Sunday

Frontier, United Airlines

Frontier, United Airlines

See more direct flights

Direct returns

Washington, D.C. Dulles Intl to Miami

Monday

Frontier, United Airlines

Frontier, United Airlines

Tuesday

United Airlines

United Airlines

Wednesday

United Airlines

United Airlines

Thursday

Frontier, United Airlines

Frontier, United Airlines

Friday

Frontier, United Airlines

Frontier, United Airlines

Saturday

Frontier, United Airlines

Frontier, United Airlines

Sunday

Frontier, United Airlines

Frontier, United Airlines

See more direct flights

Reviews of the top 3 airlines serving from Miami to Dulles Intl

 
See real verified KAYAK customer reviews for airlines flying from Miami 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 Miami 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 9403 reviews
7.3Comfort
8.1Crew
6.6Food
7.7Boarding
7.1Entertainment
Airline reviews

It was okay, the food was good, but after the landing there was not enough time for luggage and security to catch a connection. It was crowded on board.

6.0 GoodOlga, Mar 2026
FRA - IAD
Read more United Airlines reviews

It was okay, the food was good, but after the landing there was not enough time for luggage and security to catch a connection. It was crowded on board.

When I went to check in at the United counter in Barcelona, Spain I had 2 different menat 2 different times in United uniforms (standing around with a couple other employees) ask me if I was traveling alone. The one man asked me 3 different ways if I was traveling alone. I am, 68 yeaers old and have all my faculties. I thought it was weird and it made me feel very uncomfortable. What difference does it make if I was traveling alone or with someone? What if I was a recent widow? That would have been horrible. They never gave me a reason why they needed to know who I was traveling with. I was hesitant to question them because I needed to be on that flight.

Crew was great. 2 1/2 hour delay was due to staff needing "rest" was avoidable and self inflicted as United not willing to hire enough crew to keep flight on time.. Ridiculous. The crew and the passengers both suffered due to this.

Fine not above and beyond as I had a connection that was delayed due to maintenance

Bad food, bad service, cold cabin with no additional blankets when asked for (they told me they don’t provide additional blankets). I’m a frequent traveler and this is one of the worst companies I traveled with (by the way I thought that I booked my ticket with Lufthansa but I didn’t see that the flights were handled by United).

Great other than a couple very drunk guys that for a while kept bumping my seat from behind. The staff did their best to control them. Even refused serving them alcohol and allowed the gal sitting next to them to move.

Good crew. Boarding delays. Almost two hours wait for the bags in DC.

Unfortunately weather delayed our flight waiting for our plane to arrive and due to a little snow time was needed to deice the plane so departure was very delayed and I missed the connecting flight

It was great. There were some issues prior to takeoff. The weather was poor so we had to go through deicing, and we were delayed a bit by the pilots' concern about one of the engines, but that's aviation. The pilots handled everything with aplomb, and kept us apprised

The seats were comfortable and we had leg room. Great entertainment.

Everything was good. Flight was very full so crew was busy. After we boarded and plane pulled away from the gate, we were delayed about 40 minutes- sitting on the runway - due to weather en route or at the destination. While weather is not the fault of the airline- it’s terrible to sit on a plane and not moving.

The smell from the bathroom kept wafting through the cabin. It made people sick.

Waited for oxygen tanks for 30 minutes after boarding was complete.

On time on a day with lots of weather cancellations on other flights. Thank you for getting me home during a winter storm!

Don't change gate multiple times make people run across the airport. Announce delays in a timely manner. Have maintenance crew ready. Don't delay and keep passengers on the plane for 3 hrs. on tarmac.

Concern Regarding Significant Gate Delay and Jet Bridge Issue Dear Customer Relations Team, I am writing to express my disappointment with the experience I had on my recent flight AA 2414 on Sunday January 18, 2026. What should have been a routine departure turned into a frustrating and avoidable delay due to an issue with the jet bridge at the gate. As a result, the flight was delayed by approximately 90 minutes while multiple gate changes were attempted. The lack of clear communication during this period made the situation even more challenging. Passengers were left uncertain about the cause of the delay, the expected timeline, and the next steps. This not only disrupted travel plans but also created unnecessary stress for everyone on board. I understand that operational issues can arise, but a malfunctioning jet bridge and the resulting extended delay suggest an area where procedures or equipment maintenance may need attention. I hope you will review this incident to prevent similar disruptions in the future. I would appreciate acknowledgment of this concern and consideration of appropriate compensation for the inconvenience and lost time caused by this delay. Thank you for taking the time to review my experience. I look forward to hearing from you. Sincerely, Dion Dillard

UGH I HAD TO MISS MY FIRST FLIGHT TO TAMPA CAUSE OF THE 10 MINUTE DELAY OF THE ORLANDO TO MIAMI ONE SO THEY HAD ME GET ANOTHER TICKET. I AM NOT HAPPY AT ALL BECAUSE IT MADE ME MISS MY CONNECTING FLIGHT FROM TAMPA TO LONDON AND FORCED ME TO MISS A DAY AT MY ROOM IN THE UK.

We were 4+ hours delayed. AA is absolutely obnoxious. They just kept pushing back the time to the point where we did not get into Vegas until after midnight when we were supposed to arrive like 845pm.

My last flight on 25 Dec, it’s Christmas Day, everyone happy and very good mood. I really enjoy traveling with Americans Airlines from Miami to Minneapolis my home town after long flight from lhe to Doha then Miami. Thank you again to make my travels comfortable and relaxed. Best regards

I like that the crew kept us informed but we moved back and forth from gate to gate before the aircraft arrived.

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.

The experience was good. No frills but I got there safe and sound and on time.

After boarding and un-boarding twice over 6+hours, the flight was canceled.

Severe turbulence. Captain never came on to reassure passengers after things settled down.

Boarding in Orlando was not good. Giant mob at the gate, should have been lines.

Everything you need to know for your flight from Miami to Dulles Intl

Information on your arrival and departure airports