Dulles Intl

$63+ 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 9/18. Fares are subject to change and may not be available on all flights or dates of travel.
MIA — IAD
Oct 11 — Oct 181
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Cheapflights Tip: The best prices from Miami to Washington, D.C. Dulles Intl are usually found in June or August, booked 65 days in advance, depart on a Friday or Thursday and return on a Saturday

Cheap 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 September 11, 2025.

Round-trip from

$95
(Cheapflightsfares)

One-way from

$63
(Cheapflightsfares)

Popular in

December

Cheapest in

June

Average price

$181

Good round-trip deal

$115 or less

Good one-way deal

$81 or less
From Miami to Washington, D.C. Dulles Intl
One-way flight from Miami to Washington, D.C. Dulles Intl
Highest demand for flights based on searches. 18% potential increase in price ($52 potential increase over avg. RT price).
Cheapest flight prices on average. 4% potential price decrease ($9 potential savings vs. average RT price).
Average for round-trip flights in September 2025
Price to beat on a round-trip flight from Miami to Washington, D.C. Dulles Intl.
Price to beat on a one-way flight from Miami to Washington, D.C. Dulles Intl.

Find 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 September 11, 2025.

This Cheapflightsfares deal was found by Cheapflights users on 9/10. 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/2411:34 amMIA - IAD
Nonstop2h 51mFrontier
Sun 10/263:10 pmIAD - MIA
Nonstop2h 47mFrontier
Deal found 9/10$95
This Cheapflightsfares deal was found by Cheapflights users on 9/11. 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/2411:34 amMIA - IAD
Nonstop2h 51mFrontier
Mon 10/273:10 pmIAD - MIA
Nonstop2h 47mFrontier
Deal found 9/11$98
This Priceline deal was found by Cheapflights users on 9/11. 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 Priceline is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/211:35 amMIA - IAD
Nonstop2h 50mFrontier
Sun 10/53:15 pmIAD - MIA
Nonstop2h 49mFrontier
Deal found 9/11$100
This Cheapflightsfares deal was found by Cheapflights users on 9/10. 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/1911:35 amMIA - IAD
Nonstop2h 50mFrontier
Mon 9/223:15 pmIAD - MIA
Nonstop2h 49mFrontier
Deal found 9/10$101
This CheapOair deal was found by Cheapflights users on 9/10. 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/2611:35 amMIA - IAD
Nonstop2h 50mFrontier
Sun 9/283:15 pmIAD - MIA
Nonstop2h 49mFrontier
Deal found 9/10$102
This Cheapflightsfares deal was found by Cheapflights users on 9/9. 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/1312:32 pmMIA - IAD
Nonstop2h 34mFrontier
Mon 11/173:51 pmIAD - MIA
Nonstop2h 47mFrontier
Deal found 9/9$103
This Frontier deal was found by Cheapflights users on 9/10. 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 10/1211:34 amMIA - IAD
Nonstop2h 51mFrontier
Sun 10/193:10 pmIAD - MIA
Nonstop2h 47mFrontier
Deal found 9/10$104
This Cheapflightsfares deal was found by Cheapflights users on 9/9. 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/311:35 amMIA - IAD
Nonstop2h 50mFrontier
Mon 10/63:15 pmIAD - MIA
Nonstop2h 49mFrontier
Deal found 9/9$105
This Frontier deal was found by Cheapflights users on 9/9. 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 10/911:34 amMIA - IAD
Nonstop2h 51mFrontier
Sun 10/193:10 pmIAD - MIA
Nonstop2h 47mFrontier
Deal found 9/9$106
This Priceline deal was found by Cheapflights users on 9/10. 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 Priceline is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/2211:35 amMIA - IAD
Nonstop2h 50mFrontier
Fri 9/263:15 pmIAD - MIA
Nonstop2h 49mFrontier
Deal found 9/10$107
This Frontier deal was found by Cheapflights users on 9/10. 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.
Fri 9/2611:35 amMIA - IAD
Nonstop2h 50mFrontier
Mon 9/293:15 pmIAD - MIA
Nonstop2h 49mFrontier
Deal found 9/10$112

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 September 11, 2025.
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

Miami

Fly to

Dulles Intl

Route

Depart

Return

Price

MiamiWashington, D.C.

MIA - IAD

MIAIAD

Miami

Thu 10/9

1:15 pm-3:50 pm

Nonstop2h 35m

Washington, D.C. Dulles Intl

Sat 10/11

8:25 am-11:16 am

Nonstop2h 51m

$135

MiamiWashington, D.C.

MIA - IAD

MIAIAD

Miami

Wed 11/5

2:21 pm-8:20 pm

1 stop5h 59m

Washington, D.C. Dulles Intl

Thu 11/6

3:51 pm-6:38 pm

Nonstop2h 47m

$140

MiamiWashington, D.C.

MIA - IAD

MIAIAD

Miami

Tue 10/7

1:15 pm-3:50 pm

Nonstop2h 35m

Washington, D.C. Dulles Intl

Tue 10/14

8:25 am-11:16 am

Nonstop2h 51m

$146

MiamiWashington, D.C.

MIA - IAD

MIAIAD

Miami

Wed 10/1

1:15 pm-3:50 pm

Nonstop2h 35m

Washington, D.C. Dulles Intl

Mon 10/6

6:15 am-12:18 pm

1 stop6h 03m

$151

MiamiWashington, D.C.

MIA - IAD

MIAIAD

Miami

Fri 11/14

11:09 am-4:25 pm

1 stop5h 16m

Washington, D.C. Dulles Intl

Tue 11/18

8:45 am-2:37 pm

1 stop5h 52m

$156

MiamiWashington, D.C.

MIA - IAD

MIAIAD

Miami

Fri 10/3

1:28 pm-9:11 pm

1 stop7h 43m

Washington, D.C. Dulles Intl

Sun 10/5

8:25 am-11:16 am

Nonstop2h 51m

$162

MiamiWashington, D.C.

MIA - IAD

MIAIAD

Miami

Wed 10/8

1:28 pm-9:11 pm

1 stop7h 43m

Washington, D.C. Dulles Intl

Wed 10/15

8:25 am-11:16 am

Nonstop2h 51m

$162

MiamiWashington, D.C.

MIA - IAD

MIAIAD

Miami

Wed 10/15

1:15 pm-3:50 pm

Nonstop2h 35m

Washington, D.C. Dulles Intl

Sat 10/18

6:15 am-12:33 pm

1 stop6h 18m

$162

MiamiWashington, D.C.

MIA - IAD

MIAIAD

Miami

Fri 10/10

11:34 am-2:25 pm

Nonstop2h 51m

Washington, D.C. Dulles Intl

Sun 10/19

4:40 pm-12:34 am

1 stop7h 54m

$168

MiamiWashington, D.C.

MIA - IAD

MIAIAD

Miami

Thu 10/9

1:15 pm-3:50 pm

Nonstop2h 35m

Washington, D.C. Dulles Intl

Tue 10/14

8:25 am-11:16 am

Nonstop2h 51m

$187

Flights are sorted by cheapest round-trip flights first.

Deals found on 9/10

Showing 1-10 of 23 results
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The best insider tips for Miami to Washington, D.C. Dulles Intl Airport flights

Snippets provided in this section are AI-generated based on a summarization of Cheapflights-commissioned articles. The articles are presented as-is, for general informational purposes only, and may not be up-to-date. The opinions contained in the articles are original to the author and reflect their authentic experience, which may vary significantly from the experience of others.
Cheapflights partnered with top experts to bring you the best recommendations for your Miami to Washington, D.C. Dulles Intl Airport trip
Airports
MIA

For a quick departure, use the MIA Mover train to reach the Miami Intermodal Center for public transport options to downtown.

Read more about MIAby Ramsey Qubein
IAD

Take the Silver Line Metro from IAD to downtown D.C. in under 40 minutes, a cost-effective travel option.

Read more about IADby Ramsey Qubein
Our travel experts
Ramsey Qubein

Ramsey Qubein

Expert on MIA and IAD

Ramsey Qubein

Ramsey Qubein

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

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?

Use this chart to determine the optimal time to book a round-trip flight from Miami to Dulles Intl. Price data was last updated on August 29, 2025.

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 65 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, August is the cheapest month in which you can book a flight from Miami to Washington, D.C. Dulles Intl Airport (average of $292). Flying from Miami to Washington, D.C. Dulles Intl Airport in April is currently the most expensive (average of $337). 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 September 11, 2025.

Unlike at noon, when flights are generally more expensive, you can save up to 82% on flights from Miami to Washington, D.C. Dulles Intl Airport by exploring options for tickets in the afternoon.

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 September 11, 2025.
See what other customers who have flown with Delta, United Airlines, and American Airlines 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.
8.0
Very good

Crew

8.5

Boarding

8.2

Entertainment

7.9

Overall

8.0

Food

7.3

Comfort

7.9

Reviews

1 / 20
6.0
Good

pilar,May 2025

RSW - ATL

The stewardess was not very nice because I requested two glasses of water. She didn’t even offer the snacks to me. She seemed angry and I felt very bad about her reaction. Also, the flight was full and you could not move. The airline should provide seats for obese people in consideration to the rest pf the passengers.
8.0
Very good
8.0
Very good

Crew

8.5

Boarding

8.2

Entertainment

7.9

Overall

8.0

Food

7.3

Comfort

7.9

Reviews

1 / 20
6.0
Good

pilar,May 2025

RSW - ATL

The stewardess was not very nice because I requested two glasses of water. She didn’t even offer the snacks to me. She seemed angry and I felt very bad about her reaction. Also, the flight was full and you could not move. The airline should provide seats for obese people in consideration to the rest pf the passengers.
8.0
Very good

Crew

8.5

Boarding

8.2

Entertainment

7.9

Overall

8.0

Food

7.3

Comfort

7.9

Reviews

1 / 20
6.0
Good

pilar,May 2025

RSW - ATL

The stewardess was not very nice because I requested two glasses of water. She didn’t even offer the snacks to me. She seemed angry and I felt very bad about her reaction. Also, the flight was full and you could not move. The airline should provide seats for obese people in consideration to the rest pf the passengers.
8.0
Very good

Crew

8.5

Boarding

8.2

Entertainment

7.9

Overall

8.0

Food

7.3

Comfort

7.9

Reviews

1 / 20
6.0
Good

pilar,May 2025

RSW - ATL

The stewardess was not very nice because I requested two glasses of water. She didn’t even offer the snacks to me. She seemed angry and I felt very bad about her reaction. Also, the flight was full and you could not move. The airline should provide seats for obese people in consideration to the rest pf the passengers.
8.0
Very good

Crew

8.5

Boarding

8.2

Entertainment

7.9

Overall

8.0

Food

7.3

Comfort

7.9

Reviews

1 / 20
6.0
Good

pilar,May 2025

RSW - ATL

The stewardess was not very nice because I requested two glasses of water. She didn’t even offer the snacks to me. She seemed angry and I felt very bad about her reaction. Also, the flight was full and you could not move. The airline should provide seats for obese people in consideration to the rest pf the passengers.
8.0
Very good

Crew

8.5

Boarding

8.2

Entertainment

7.9

Overall

8.0

Food

7.3

Comfort

7.9

Reviews

1 / 20
6.0
Good

pilar,May 2025

RSW - ATL

The stewardess was not very nice because I requested two glasses of water. She didn’t even offer the snacks to me. She seemed angry and I felt very bad about her reaction. Also, the flight was full and you could not move. The airline should provide seats for obese people in consideration to the rest pf the passengers.

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. 5 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 2 outbound flights 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 35m. 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 $67. Additional round-trip tickets that might be worth considering are offered by Spirit Airlines and Delta, with the lowest prices starting at $96 and $127, respectively. These flights start at 70% lower than the current average price 3 months from now.

  • What are the most reliable airlines from Miami to Washington, D.C. Dulles Intl Airport?

    Consider United Airlines (87%), Copa Airlines (74%) or Frontier (57%) when booking your flight. These represent the most reliable airlines when flying from Miami to Washington, D.C. Dulles Intl Airport.

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

    On average you can expect to pay $163 for a flight from Miami to Washington, D.C. Dulles Intl Airport. The cheapest flight overall is $39 while the most popular route, (Miami - Washington, D.C. Dulles Intl) is currently priced at $95.

  • 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, August is the cheapest month in which you can book a flight from Miami to Washington, D.C. Dulles Intl Airport (average of $292). Flying from Miami to Washington, D.C. Dulles Intl Airport in April is currently the most expensive (average of $337). 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
Woodbridge
Alexandria
Arlington
Tysons
Silver Spring
Springfield
Gaithersburg
Fredericksburg
Linthicum Heights
Fairfax
Falls Church
Owings Mills
Manassas
Rockville
Hanover
Oxon Hill
Laurel
Towson
Dundalk
National Harbor

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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.

Top 5 airlines flying from Miami to Dulles Intl

Discover the top 5 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 September 11, 2025.
AirlineCheapestAverageFlexibilityOn-time
FrontierCheapest$67Average$149FlexibilityNo cancel feeOn-time62%
Spirit AirlinesCheapest$96Average$178FlexibilityNo cancel feeOn-time65%
DeltaCheapest$127Average$167FlexibilityNo cancel feeOn-timeN/A
United AirlinesCheapest$137Average$269FlexibilityNo cancel feeOn-time69%
American AirlinesCheapest$250Average$365FlexibilityNo cancel feeOn-time71%

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