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Dulles Intl

$74+ Cheap flights from Miami (MIA) to Dulles Intl (IAD)

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 8/18. Fares are subject to change and may not be available on all flights or dates of travel.
MIA — IAD
Aug 29 — Sep 51
Sat 8/29
Sat 9/5
1 adult, Economy
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1. Tell us where you want to go

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Cheapflights Tip: The best prices from Miami to Washington, D.C. Dulles Intl are usually found in November or January, booked 81 days in advance, depart on a Friday or Thursday and return on a Monday

Cheap flight deals from Miami to Dulles Intl

Cheapest flights from Miami to Dulles Intl
Explore the most affordable flight options available from Miami to Dulles Intl. Find the lowest fares from popular airlines and budget airlines, with prices last updated on July 30, 2026.

This Frontier deal was found by Cheapflights users on 7/30. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 8/276:50 am
MIA
-
IAD
1 stop11h 39m
Frontier
Thu 9/36:20 am
IAD
-
MIA
1 stop7h 12m
Frontier
Deal found 7/30$158
This Kiwi.com deal was found by Cheapflights users on 7/29. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/18:10 am
MIA
-
IAD
1 stop9h 04m
Frontier
Sat 9/57:00 am
IAD
-
MIA
1 stop13h 29m
Frontier
Deal found 7/29$162
This eDestinos deal was found by Cheapflights users on 7/29. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure eDestinos is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 8/1911:10 am
MIA
-
IAD
1 stop11h 42m
Frontier
Sat 8/228:39 pm
IAD
-
MIA
1 stop26h 26m
Frontier
Deal found 7/29$163
This Kiwi.com deal was found by Cheapflights users on 7/27. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 8/223:07 pm
MIA
-
IAD
1 stop7h 45m
Frontier
Sat 8/297:00 am
IAD
-
MIA
1 stop6h 32m
Frontier
Deal found 7/27$164
This Frontier deal was found by Cheapflights users on 7/30. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 12/67:30 am
MIA
-
IAD
Nonstop2h 42m
Frontier
Tue 12/811:14 am
IAD
-
MIA
Nonstop2h 55m
Frontier
Deal found 7/30$165
This Kiwi.com deal was found by Cheapflights users on 7/29. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 8/2611:10 am
MIA
-
IAD
1 stop6h 04m
Frontier
Wed 9/26:20 am
IAD
-
MIA
1 stop10h 01m
Frontier
Deal found 7/29$167
This Kiwi.com deal was found by Cheapflights users on 7/27. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 8/293:07 pm
MIA
-
IAD
1 stop7h 45m
Frontier
Mon 8/316:20 am
IAD
-
MIA
1 stop7h 12m
Frontier
Deal found 7/27$168
This Kiwi.com deal was found by Cheapflights users on 7/27. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/104:30 pm
MIA
-
IAD
1 stop7h 40m
Frontier
Mon 9/147:50 am
IAD
-
MIA
1 stop8h 39m
Frontier
Deal found 7/27$170
This Kiwi.com deal was found by Cheapflights users on 7/25. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 8/188:10 am
MIA
-
IAD
1 stop9h 04m
Frontier
Thu 8/206:20 am
IAD
-
MIA
1 stop16h 45m
Frontier
Deal found 7/25$172

Find flight deals from Miami to Dulles Intl

Discover tips and strategies to find the most affordable flight options for your journey from Miami (MIA) to Dulles Intl (IAD). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated July 30, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$158
(Frontier)

One-way from

$74
(Kiwi.com)

Popular in

June

Cheapest in

November

Average price

$263

Good round-trip deal

$785 or less

Good one-way deal

$293 or less
Provider with most accurate pricing for Miami-Washington, D.C. Dulles Intl flight deals.
Search Deals
Provider most trusted by Cheapflights users for Miami-Washington, D.C. Dulles Intl flights.
Search Deals
From Miami to Washington, D.C. Dulles Intl
Search Deals
One-way flight from Miami to Washington, D.C. Dulles Intl
Search Deals
Highest demand for flights based on searches. 31% potential increase in price ($94 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 6% potential price decrease ($12 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in July 2026
Search Deals
Price to beat on a round-trip flight from Miami to Washington, D.C. Dulles Intl.
Search Deals
Price to beat on a one-way flight from Miami to Washington, D.C. Dulles Intl.
Search Deals

Cheapflights Fare Finder

 
Customize your flight search to find flights from Miami to Dulles Intl that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated July 30, 2026.
Use the filters below to find and compare flights from Miami to Washington, D.C. Dulles Intl Airport that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip
Quickest round-trip

MiamiWashington, D.C.

MIA - IAD

MIAIAD

Miami

Wed 10/7

1:26 pm-3:59 pm

Nonstop2h 33m

Washington, D.C. Dulles Intl

Wed 10/14

8:25 am-11:20 am

Nonstop2h 55m

$208

MiamiWashington, D.C.

MIA - IAD

MIAIAD

Miami

Thu 9/3

1:44 pm-4:17 pm

Nonstop2h 33m

Washington, D.C. Dulles Intl

Tue 9/8

8:35 am-2:46 pm

1 stop6h 11m

$218

MiamiWashington, D.C.

MIA - IAD

MIAIAD

Miami

Sat 8/29

8:25 am-1:43 pm

1 stop5h 18m

Washington, D.C. Dulles Intl

Mon 8/31

11:10 am-5:37 pm

1 stop6h 27m

$228

MiamiWashington, D.C.

MIA - IAD

MIAIAD

Miami

Thu 9/10

6:00 am-11:30 am

1 stop5h 30m

Washington, D.C. Dulles Intl

Tue 9/15

8:08 am-3:30 pm

1 stop7h 22m

$228

MiamiWashington, D.C.

MIA - IAD

MIAIAD

Miami

Sat 9/19

7:21 am-2:11 pm

1 stop6h 50m

Washington, D.C. Dulles Intl

Mon 9/21

6:00 am-10:58 am

1 stop4h 58m

$229

MiamiWashington, D.C.

MIA - IAD

MIAIAD

Miami

Tue 10/20

10:31 am-5:10 pm

1 stop6h 39m

Washington, D.C. Dulles Intl

Thu 10/29

12:29 pm-7:43 pm

1 stop7h 14m

$237

MiamiWashington, D.C.

MIA - IAD

MIAIAD

Miami

Sat 12/5

7:00 am-2:05 pm

1 stop7h 05m

Washington, D.C. Dulles Intl

Mon 12/7

11:15 am-5:59 pm

1 stop6h 44m

$237

MiamiWashington, D.C.

MIA - IAD

MIAIAD

Miami

Fri 10/9

5:50 pm-12:42 am

1 stop6h 52m

Washington, D.C. Dulles Intl

Mon 10/12

7:45 pm-12:53 am

1 stop5h 08m

$278

MiamiWashington, D.C.

MIA - IAD

MIAIAD

Miami

Fri 8/28

1:44 pm-4:17 pm

Nonstop2h 33m

Washington, D.C. Dulles Intl

Mon 8/31

6:16 am-2:46 pm

1 stop8h 30m

$379

MiamiWashington, D.C.

MIA - IAD

MIAIAD

Miami

Fri 10/9

1:26 pm-3:59 pm

Nonstop2h 33m

Washington, D.C. Dulles Intl

Sun 10/11

8:25 am-11:20 am

Nonstop2h 55m

$379

Flights are sorted by cheapest round-trip flights first.

Deals found on 7/29

Showing 1-10 of 24 resultsSorted by cheapest first
1
2
3

Compare providers for flights from Miami to Dulles Intl

Provider information is updated monthly. Please note that these providers often have deals for this flight, but the availability may vary on a day-by-day basis on Cheapflights.
Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from Miami to Dulles Intl in July.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy1 starTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*3 stars
eDreamsPrice Accuracy2 starsTrust Score*3 stars
MytripPrice Accuracy2 starsTrust Score*3 stars
Super.comPrice Accuracy-Trust Score*3 stars
JustAirTicketPrice Accuracy-Trust Score*1 star

*The Trust Score is based on feedback from users after their booking experience. It measures overall satisfaction, helping us identify issues like hidden fees, problems during the ticketing process, and the quality of customer service. This score is our best indicator of the provider's quality and reliability.

  • Most accurate provider: When it comes to deals on Miami-Washington, D.C. Dulles Intl Airport flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Miami-Washington, D.C. Dulles Intl Airport flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Miami-Washington, D.C. Dulles Intl Airport flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on Miami-Washington, D.C. Dulles Intl Airport flights, Cheapflights users trust FlightHub the most. FlightHub has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for Miami-Washington, D.C. Dulles Intl Airport flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.

Best time to book a flight from Miami to Dulles Intl

Have a flexible travel schedule? Discover the best time to fly to Dulles Intl from Miami with our price prediction graph.
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Cheapflights Insights

Everything you need to know about your flight from Miami to Washington, D.C. Dulles Intl Airport

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

The price you pay for your flight from Miami to Washington, D.C. Dulles Intl Airport may vary depending on when you book. For the best chance of a lower fare, look to book 78 days in advance of your trip. Fares are likely to increase a fortnight or so before your departure date.

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

Currently, November is the cheapest month in which you can book a flight from Miami to Washington, D.C. Dulles Intl Airport (average of $126). Flying from Miami to Washington, D.C. Dulles Intl Airport in June is currently the most expensive (average of $340). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

What is the cheapest time of day to fly from MIA to IAD?

Find hourly flight availability from Miami to Dulles Intl. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated July 30, 2026.

Unlike in the evening, when flights are generally more expensive, you can save up to 90% on flights from Miami to Washington, D.C. Dulles Intl Airport by exploring options for tickets in the morning.

How much does it cost to fly round-trip from Miami to Washington, D.C. Dulles Intl Airport?

Airfare is typical for this route at the moment.

Miami to Washington, D.C. Dulles Intl Airport flights typically cost between $124 and $222 in August.
The cheapest round-trip price found within the last 5 days was $158 on Frontier (Aug 27-Aug 29).

The best insider tips for Miami to Washington, D.C. Dulles Intl Airport flights

AI-powered summary based on content written by travel experts. AI can make mistakes.
Cheapflights partnered with top experts to bring you the best recommendations for your Miami to Washington, D.C. Dulles Intl Airport trip
Our travel experts
Ramsey Qubein

Ramsey Qubein

Expert on MIA and IAD

An avid traveler and aviation expert who has visited 173 countries, all 50 states and seven continents, Ramsey Qubein flies nearly 400,000 miles a year. As a North Carolina-based freelance journalist for publications including Conde Nast Traveler, Forbes, USA Today and Bloomberg among others, he explores the latest trends in aviation, hospitality, cruises and business.

Read more

Reviews of airlines servicing Dulles Intl

Get insights into the airlines that provide service to Dulles Intl. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Dulles Intl. Reviews last updated July 30, 2026.
See what other customers who have flown with United Airlines and Frontier from Miami to Washington, D.C. Dulles Intl Airport have to say. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.
United Airlines
7.4
Good
10,052 reviews

Boarding

7.7

Entertainment

7.1

Food

6.6

Crew

8.1

Overall

7.4

Comfort

7.3

Reviews

1 / 20
10.0
Excellent

Dane,Jan 2026

TYS - IAD

It was a short flight, so no time for amenities. Just glad everything was quick and easy from boarding to arriving at my destination with my family
United Airlines
7.4
Good
10,052 reviews
United Airlines
7.4
Good
10,052 reviews

Boarding

7.7

Entertainment

7.1

Food

6.6

Crew

8.1

Overall

7.4

Comfort

7.3

Reviews

1 / 20
10.0
Excellent

Dane,Jan 2026

TYS - IAD

It was a short flight, so no time for amenities. Just glad everything was quick and easy from boarding to arriving at my destination with my family
Frontier
5.6
Fair
2,747 reviews
United Airlines
7.4
Good
10,052 reviews

Boarding

7.7

Entertainment

7.1

Food

6.6

Crew

8.1

Overall

7.4

Comfort

7.3

Reviews

1 / 20
10.0
Excellent

Dane,Jan 2026

TYS - IAD

It was a short flight, so no time for amenities. Just glad everything was quick and easy from boarding to arriving at my destination with my family

Related info for your journey

Find useful and relevant information for your journey from Miami to Dulles Intl. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • What airport do you fly from for flights from Miami to Washington, D.C. Dulles Intl?

    Miami (MIA), located 6.1 mi from the city center, is the airport you fly out of when you book flights from Miami to Washington, D.C. Dulles Intl. 2 airlines have flights from Miami to Washington, D.C. Dulles Intl on a regular basis. Booking flights from Miami to Washington, D.C. Dulles Intl should not be difficult; the airport handles an average of 1 outbound flight to Washington, D.C. Dulles Intl per day.

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

    Departing from Miami to Washington, D.C. Dulles Intl Airport will take you 2h 33m. Airlines will cover a distance of 923 mi. When browsing for deals, the options you’ll see will be for both nonstop flights and flights with stops.

  • What are the cheapest airlines flying from Miami to Washington, D.C. Dulles Intl Airport round-trip?

    Flying on Frontier is currently your cheapest option to Washington, D.C. Dulles Intl Airport, with prices starting at $55. Another option worth looking into is United Airlines, starting at $121 round trip. These flights start at 73% lower than the current average price 3 months from now.

  • What are the cheapest airlines to fly from Miami to Washington, D.C. Dulles Intl Airport one-way?

    To fly one-way, consider booking your trip with Frontier, which is currently one of the cheapest options available, starting at $34. United Airlines flights start at $78 while deals on JetBlue start at $88 one-way.

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

    On average you can expect to pay $3,051 for a flight from Miami to Washington, D.C. Dulles Intl Airport. The cheapest flight overall is $148 while the most popular route, (Miami - Washington, D.C. Dulles Intl) is currently priced at $217.

  • Can I find deals for flights from Miami to Dulles Intl that include hotel bookings?

    Yes. In addition to deals on Miami to Dulles Intl flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Miami to Dulles Intl?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Miami to Dulles Intl.

  • Can I find deals for business class flights from Miami to Dulles Intl?

    Yes. Cheapflights offers flight deals from Miami to Dulles Intl by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

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

    Currently, November is the cheapest month in which you can book a flight from Miami to Washington, D.C. Dulles Intl Airport (average of $126). Flying from Miami to Washington, D.C. Dulles Intl Airport in June is currently the most expensive (average of $340). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

Traveling to a place near Washington, D.C. Dulles Intl Airport?

Book flights to Washington, D.C. Dulles Intl Airport if you plan to visit one of these locations
Alexandria
Owings Mills
Arlington
Tysons
Springfield
Lanham
Reston
Herndon
Rockville
Chantilly
Hyattsville
Fredericksburg
Falls Church
Hanover
Laurel
Sterling
Clinton
Hunt Valley
Cordova
Woodbridge

Browse thousands of different options on Cheapflights for your next trip

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Alternative routes for Miami to Dulles Intl

See prices for flight routes from nearby airports that may be better suited for you.
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Sarasota to Reagan-National flights
Tallahassee to Dulles Intl flights
Pensacola to Baltimore flights
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Tallahassee to Baltimore flights
Tallahassee to Reagan-National flights
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Daytona Beach to Baltimore flights
Gainesville to Baltimore flights
Key West to Reagan-National flights
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Gainesville to Reagan-National flights
Valdosta to Baltimore flights
Valdosta to Reagan-National flights
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Key West to Baltimore flights

Top 2 airlines flying from Miami to Dulles Intl

Discover the top 2 airlines that operate flights from Miami to Dulles Intl. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated July 30, 2026.
AirlineCheapestAverageFlexibilityOn-time
FrontierCheapest$55Average$140FlexibilityNo cancel feeOn-time62%
United AirlinesCheapest$121Average$235FlexibilityNo cancel feeOn-time69%

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