What is the most punctual flight time for Miami to Washington, D.C. flights?

Historically, flights departing at night are less likely to be delayed, whereas flights leaving in the evening tend to experience delays more often.

Which airline has the best punctuality record on Miami to Washington, D.C. flights?

Over the last year, United Airlines have had the lowest number of delays on this route, with just 12% of flights being delayed.

What day of the week experiences the fewest flight delays on this route?

Tuesday tends to have the lowest number of delays on this route, whereas Sunday has historically faced a higher average of delays compared to other days of the week.

How often are flights from Miami to Washington, D.C. delayed?

About 15% of weekly flights between Miami and Washington, D.C. have experienced delays in the past year, with the average delay time being 150 minutes.

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 45m. 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 $54. Additional round-trip tickets that might be worth considering are offered by United Airlines and Delta, with the lowest prices starting at $121 and $217, respectively. These flights start at 75% 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.

Weekly flight availability from Miami to Washington, D.C. Dulles Intl Airport

The most flights from MIA to IAD are scheduled on a Monday (2 on average). You will have fewer flight options on Monday, which is when the least amount of flights are scheduled (2 on average).

In terms of precipitation, rainfall in Washington, D.C. Dulles Intl Airport ranges from 2.6 - 4.0 inches per month. May is typically the wettest month, when rainfall can reach 4.0 in. February is typically the driest time to visit Washington, D.C. Dulles Intl Airport when rainfall is around 2.6 in.

If weather is an important factor for your trip to Washington, D.C. Dulles Intl Airport, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 80.6 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 35.6 F).

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

On average you can expect to pay $683 for a flight from Miami to Washington, D.C. Dulles Intl Airport. The cheapest flight overall is $144 while the most popular route, (Miami - Washington, D.C. Dulles Intl) is currently priced at $198.

What are the most popular airlines that fly from Miami to Washington, D.C. Dulles Intl Airport?

When booking a flight from Miami to Washington, D.C. Dulles Intl Airport, you may want to consider flying on United Airlines, Frontier or Delta as they are the most popular for this route.

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.

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. 3 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.

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.

$84+ Cheap Flights from Miami to Washington, D.C. Dulles Intl Airport

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1. Tell us where you want to go

Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”

2. Select your favorite providers

We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.

3. Compare prices and book

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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

Best

Last-minute

One-way

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 10, 2026.

Thu 12/37:30 am -

Nonstop2h 42m

Sun 12/611:14 am -

Nonstop2h 55m

Deal found 9/5

$153

Thu 10/225:15 am -

1 stop11h 58m

Mon 10/267:50 am -

1 stop7h 35m

Deal found 9/4

$155

Sat 10/175:05 am -

1 stop12h 08m

Thu 10/297:40 am -

1 stop7h 45m

Deal found 9/9

$158

Thu 10/225:15 am -

1 stop11h 58m

Sun 10/257:50 am -

1 stop7h 35m

Deal found 9/9

$159

Thu 10/14:30 pm -

1 stop7h 40m

Sat 10/177:50 am -

1 stop9h 01m

Deal found 9/9

$160

Wed 10/143:23 pm -

1 stop8h 58m

Sat 10/177:50 am -

1 stop9h 01m

Deal found 9/9

$161

Thu 10/14:30 pm -

1 stop7h 40m

Mon 10/199:06 pm -

1 stop13h 09m

Deal found 9/9

$162

Wed 9/305:32 am -

1 stop11h 46m

Sat 10/177:50 am -

1 stop9h 01m

Deal found 9/9

$163

Thu 10/15:32 am -

1 stop11h 46m

Sat 10/312:30 pm -

1 stop9h 30m

Deal found 9/9

$164

Thu 10/14:30 pm -

1 stop7h 40m

Tue 10/69:04 pm -

1 stop13h 26m

Deal found 9/9

$165

Thu 10/14:30 pm -

1 stop7h 40m

Sat 10/109:06 pm -

1 stop13h 09m

Deal found 9/9

$167

Best flights from Miami to Dulles Intl
Discover carefully curated flight deals from Miami to Dulles Intl that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated September 10, 2026.

Wed 1/208:05 am -

1 stop6h 36m

Wed 1/271:00 pm -

1 stop5h 49m

Deal found 9/9

$237

Wed 1/201:25 pm -

Nonstop2h 45m

Sat 1/236:45 pm -

Nonstop3h 02m

Deal found 9/9

$297

Sat 11/79:00 am -

Nonstop2h 38m

Tue 11/108:40 am -

Nonstop2h 53m

Deal found 9/8

$297

Fri 11/69:00 am -

Nonstop2h 38m

Mon 11/98:37 am -

1 stop5h 59m

Deal found 9/9

$315

Thu 11/121:25 pm -

Nonstop2h 36m

Sat 11/148:40 am -

Nonstop2h 53m

Deal found 9/7

$339

Fri 10/21:26 pm -

Nonstop2h 33m

Sun 10/48:25 am -

Nonstop2h 55m

Deal found 9/6

$339

Wed 10/71:26 pm -

Nonstop2h 33m

Wed 10/1412:38 pm -

1 stop6h 14m

Deal found 9/7

$370

Sat 10/31:26 pm -

Nonstop2h 33m

Mon 10/58:25 am -

Nonstop2h 55m

Deal found 9/6

$388

Fri 10/96:00 am -

1 stop5h 25m

Fri 10/168:25 am -

Nonstop2h 55m

Deal found 9/6

$415

Mon 10/269:00 am -

Nonstop2h 38m

Thu 10/298:37 am -

1 stop7h 49m

Deal found 9/8

$417

Wed 9/235:37 pm -

1 stop5h 22m

Sun 9/278:25 am -

Nonstop2h 55m

Deal found 9/8

$427

Sat 9/268:54 am -

1 stop7h 39m

Fri 10/212:38 pm -

1 stop6h 14m

Deal found 9/9

$429

Last-minute flights from Miami to Dulles Intl
Discover last-minute flight deals from Miami to Dulles Intl. Data last updated September 10, 2026 and is based on user searches.

Wed 9/305:32 am -

1 stop11h 46m

Sat 10/177:50 am -

1 stop9h 01m

Deal found 9/9

$163

Wed 9/305:32 am -

1 stop11h 46m

Tue 10/67:50 am -

1 stop12h 48m

Deal found 9/9

$169

Thu 10/14:30 pm -

1 stop7h 40m

Sat 10/177:50 am -

1 stop9h 01m

Deal found 9/9

$160

Thu 10/14:30 pm -

1 stop7h 40m

Tue 10/139:06 pm -

1 stop13h 09m

Deal found 9/9

$162

Thu 10/15:32 am -

1 stop11h 46m

Sat 10/312:30 pm -

1 stop9h 30m

Deal found 9/9

$164

Thu 10/14:30 pm -

1 stop7h 40m

Tue 10/69:04 pm -

1 stop13h 26m

Deal found 9/9

$165

Thu 10/14:30 pm -

1 stop7h 40m

Sat 10/109:06 pm -

1 stop13h 09m

Deal found 9/9

$167

Wed 10/145:05 am -

1 stop12h 08m

Wed 10/217:50 am -

1 stop6h 28m

Deal found 9/9

$161

Wed 10/143:23 pm -

1 stop8h 58m

Mon 10/197:50 am -

1 stop7h 35m

Deal found 9/9

$168

Sat 10/175:05 am -

1 stop12h 08m

Thu 10/297:40 am -

1 stop7h 45m

Deal found 9/9

$158

Thu 10/225:15 am -

1 stop11h 58m

Mon 10/267:50 am -

1 stop7h 35m

Deal found 9/9

$157

Thu 10/225:15 am -

1 stop11h 58m

Sun 10/257:50 am -

1 stop7h 35m

Deal found 9/9

$159

One-way flights from Miami to Dulles Intl
Search for one-way flight options from Miami to Dulles Intl. Find affordable one-way fares based on user searches. Data last updated September 10, 2026.

Tue 10/1310:36 pm -

1 stop18h 37m

Wed 12/3112:00 am -

Nonstop0h 00m

Deal found 9/5

$84

Thu 11/54:30 pm -

1 stop7h 13m

Wed 12/3112:00 am -

Nonstop0h 00m

Deal found 9/5

$85

Tue 12/86:15 am -

1 stop8h 25m

Wed 12/3112:00 am -

Nonstop0h 00m

Deal found 9/5

$87

Sat 12/56:15 am -

1 stop8h 25m

Wed 12/3112:00 am -

Nonstop0h 00m

Deal found 9/5

$88

Fri 10/29:30 pm -

1 stop19h 48m

Wed 12/3112:00 am -

Nonstop0h 00m

Deal found 9/5

$89

Tue 9/295:32 am -

1 stop11h 46m

Wed 12/3112:00 am -

Nonstop0h 00m

Deal found 9/7

$90

Sat 11/75:05 am -

1 stop12h 07m

Wed 12/3112:00 am -

Nonstop0h 00m

Deal found 9/8

$91

Tue 11/35:05 am -

1 stop12h 07m

Wed 12/3112:00 am -

Nonstop0h 00m

Deal found 9/7

$93

Thu 10/85:15 am -

1 stop11h 58m

Wed 12/3112:00 am -

Nonstop0h 00m

Deal found 9/7

$94

Wed 10/143:23 pm -

1 stop8h 58m

Wed 12/3112:00 am -

Nonstop0h 00m

Deal found 9/8

$95

Mon 10/2610:55 pm -

1 stop18h 17m

Wed 12/3112:00 am -

Nonstop0h 00m

Deal found 9/8

$100

Find flight deals from Miami to Dulles Intl

Most accurate provider	FlightHub 3 stars
Most trusted provider	FlightHub 3 stars
Round-trip from	$153 (Priceline)
One-way from	$84 (Kiwi.com)
Popular in	July
Cheapest in	November
Average price	$187
Good round-trip deal	$323 or less
Good one-way deal	$338 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. 28% potential increase in price ($88 potential increase over avg. RT price).

Search Deals

Cheapest flight prices on average. 7% potential price decrease ($17 potential savings vs. average RT price).

Search Deals

Average for round-trip flights in September 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

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

MiamiWashington, D.C.

MIA Miami - IAD Washington, D.C. Dulles Intl

MIAIAD

Miami

Mon 11/23

9:00 am-11:38 am

Nonstop2h 38m

Washington, D.C. Dulles Intl

Wed 12/31

12:00 am-12:00 am

Nonstop0h 00m

$170

Quickest round-trip

MiamiWashington, D.C.

MIA Miami - IAD Washington, D.C. Dulles Intl

MIAIAD

Miami

Sat 10/10

1:26 pm-3:59 pm

Nonstop2h 33m

Washington, D.C. Dulles Intl

Wed 12/31

12:00 am-12:00 am

Nonstop0h 00m

$186

MiamiWashington, D.C.

MIA Miami - IAD Washington, D.C. Dulles Intl

MIAIAD

Miami

Mon 10/26

9:00 am-11:38 am

Nonstop2h 38m

Washington, D.C. Dulles Intl

Wed 12/31

12:00 am-12:00 am

Nonstop0h 00m

$194

MiamiWashington, D.C.

MIA Miami - IAD Washington, D.C. Dulles Intl

MIAIAD

Miami

Tue 10/13

7:36 pm-12:42 am

1 stop5h 06m

Washington, D.C. Dulles Intl

Wed 12/31

12:00 am-12:00 am

Nonstop0h 00m

$204

MiamiWashington, D.C.

MIA Miami - IAD Washington, D.C. Dulles Intl

MIAIAD

Miami

Wed 11/4

1:25 pm-4:01 pm

Nonstop2h 36m

Washington, D.C. Dulles Intl

Wed 12/31

12:00 am-12:00 am

Nonstop0h 00m

$204

MiamiWashington, D.C.

MIA Miami - IAD Washington, D.C. Dulles Intl

MIAIAD

Miami

Thu 10/15

1:26 pm-3:59 pm

Nonstop2h 33m

Washington, D.C. Dulles Intl

Wed 12/31

12:00 am-12:00 am

Nonstop0h 00m

$204

MiamiWashington, D.C.

MIA Miami - IAD Washington, D.C. Dulles Intl

MIAIAD

Miami

Thu 11/12

1:25 pm-4:01 pm

Nonstop2h 36m

Washington, D.C. Dulles Intl

Wed 12/31

12:00 am-12:00 am

Nonstop0h 00m

$210

MiamiWashington, D.C.

MIA Miami - IAD Washington, D.C. Dulles Intl

MIAIAD

Miami

Sun 12/13

6:00 am-11:39 am

1 stop5h 39m

Washington, D.C. Dulles Intl

Wed 12/31

12:00 am-12:00 am

Nonstop0h 00m

$214

MiamiWashington, D.C.

MIA Miami - IAD Washington, D.C. Dulles Intl

MIAIAD

Miami

Wed 3/3

7:00 am-11:59 am

1 stop4h 59m

Washington, D.C. Dulles Intl

Wed 12/31

12:00 am-12:00 am

Nonstop0h 00m

$214

MiamiWashington, D.C.

MIA Miami - IAD Washington, D.C. Dulles Intl

MIAIAD

Miami

Sun 1/10

6:00 am-11:02 am

1 stop5h 02m

Washington, D.C. Dulles Intl

Wed 12/31

12:00 am-12:00 am

Nonstop0h 00m

$214

Flights are sorted by cheapest round-trip flights first.

Deals found on 9/5

Showing 1-10 of 23 resultsSorted by cheapest first

Compare providers for flights from Miami to Dulles Intl

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 September.

Provider	Price Accuracy	Trust Score*
Expedia	Price Accuracy1 star	Trust Score*3 stars
FlightHub	Price Accuracy3 stars	Trust Score*3 stars
eDreams	Price Accuracy2 stars	Trust Score*3 stars
Super.com	Price Accuracy-	Trust Score*3 stars
JustAirTicket	Price 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.

MIA-IAD

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

Prices

Airlines

Delays

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 July is currently the most expensive (average of $404). 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?

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 $116 and $276 in December.
The cheapest round-trip price found within the last 5 days was $153 on Frontier (Dec 3-Dec 6).

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

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

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.

See what other customers who have flown with Delta,United Airlines, andFrontier 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.

Delta

7.8

Good

8,553 reviews

Reviews

1 / 20

8.0

Excellent

Jorge,Aug 2026

TPA - ATL

Although I still enjoy flying Delta, the overall flying experience feels cheapened. But I guess that is true of most, if not all american carriers.

Delta

7.8

Good

8,553 reviews

Delta

7.8

Good

8,553 reviews

Reviews

1 / 20

8.0

Excellent

Jorge,Aug 2026

TPA - ATL

Although I still enjoy flying Delta, the overall flying experience feels cheapened. But I guess that is true of most, if not all american carriers.

United Airlines

7.4

Good

10,194 reviews

Delta

7.8

Good

8,553 reviews

Reviews

1 / 20

8.0

Excellent

Jorge,Aug 2026

TPA - ATL

Although I still enjoy flying Delta, the overall flying experience feels cheapened. But I guess that is true of most, if not all american carriers.

Frontier

5.6

Fair

2,611 reviews

Delta

7.8

Good

8,553 reviews

Reviews

1 / 20

8.0

Excellent

Jorge,Aug 2026

TPA - ATL

Although I still enjoy flying Delta, the overall flying experience feels cheapened. But I guess that is true of most, if not all american carriers.

Related info for your journey

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. 3 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 45m. 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 $54. Additional round-trip tickets that might be worth considering are offered by United Airlines and Delta, with the lowest prices starting at $121 and $217, respectively. These flights start at 75% 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 $683 for a flight from Miami to Washington, D.C. Dulles Intl Airport. The cheapest flight overall is $144 while the most popular route, (Miami - Washington, D.C. Dulles Intl) is currently priced at $198.
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 July is currently the most expensive (average of $404). 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.

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Top 3 airlines flying from Miami to Dulles Intl

Airline	Cheapest	Average	Flexibility	On-time
Frontier	Cheapest$54	Average$132	FlexibilityNo cancel fee	On-time62%
United Airlines	Cheapest$121	Average$242	FlexibilityNo cancel fee	On-time69%
Delta	Cheapest$217	Average$393	FlexibilityNo cancel fee	On-timeN/A

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$84+ Cheap flights from Miami (MIA) to Dulles Intl (IAD)

This is the cheapest round-trip flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 10/13. Fares are subject to change and may not be available on all flights or dates of travel.

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Cheap flight deals from Miami to Dulles Intl

Cheapest flights from Miami to Dulles IntlExplore 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 10, 2026.

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 10, 2026.

Best flights from Miami to Dulles IntlDiscover carefully curated flight deals from Miami to Dulles Intl that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated September 10, 2026.

Discover carefully curated flight deals from Miami to Dulles Intl that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated September 10, 2026.

Last-minute flights from Miami to Dulles IntlDiscover last-minute flight deals from Miami to Dulles Intl. Data last updated September 10, 2026 and is based on user searches.

Discover last-minute flight deals from Miami to Dulles Intl. Data last updated September 10, 2026 and is based on user searches.

One-way flights from Miami to Dulles IntlSearch for one-way flight options from Miami to Dulles Intl. Find affordable one-way fares based on user searches. Data last updated September 10, 2026.

Search for one-way flight options from Miami to Dulles Intl. Find affordable one-way fares based on user searches. Data last updated September 10, 2026.

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Use the filters below to find and compare flights from Miami to Washington, D.C. Dulles Intl Airport that are best for you.

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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.

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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.

Cheapflights Insights

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?

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

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 $116 and $276 in December.The cheapest round-trip price found within the last 5 days was $153 on Frontier (Dec 3-Dec 6).

Weekly flight availability from Miami to Washington, D.C. Dulles Intl Airport

The most flights from MIA to IAD are scheduled on a Monday (2 on average). You will have fewer flight options on Monday, which is when the least amount of flights are scheduled (2 on average).

How often are flights from Miami to Washington, D.C. delayed?

About 15% of weekly flights between Miami and Washington, D.C. have experienced delays in the past year, with the average delay time being 150 minutes.

What is the most punctual flight time for Miami to Washington, D.C. flights?

Historically, flights departing at night are less likely to be delayed, whereas flights leaving in the evening tend to experience delays more often.

What day of the week experiences the fewest flight delays on this route?

Tuesday tends to have the lowest number of delays on this route, whereas Sunday has historically faced a higher average of delays compared to other days of the week.

Which airline has the best punctuality record on Miami to Washington, D.C. flights?

Over the last year, United Airlines have had the lowest number of delays on this route, with just 12% of flights being delayed.

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

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Reviews of airlines servicing Dulles Intl

See what other customers who have flown with Delta,United Airlines, andFrontier 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.

Related info for your journey

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Other flights to Dulles Intl

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Miami and Dulles Intl flights

Browse other Miami and Dulles Intl flight options. Last updated on September 10, 2026.

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 10, 2026.

Best flights from Miami to Dulles Intl
Discover carefully curated flight deals from Miami to Dulles Intl that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated September 10, 2026.

Last-minute flights from Miami to Dulles Intl
Discover last-minute flight deals from Miami to Dulles Intl. Data last updated September 10, 2026 and is based on user searches.

One-way flights from Miami to Dulles Intl
Search for one-way flight options from Miami to Dulles Intl. Find affordable one-way fares based on user searches. Data last updated September 10, 2026.

Miami to Washington, D.C. Dulles Intl Airport flights typically cost between $116 and $276 in December.
The cheapest round-trip price found within the last 5 days was $153 on Frontier (Dec 3-Dec 6).