What is the cheapest airline to fly 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 $110. This flight start at 53% lower than the current average price 3 months from now.

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

Travelers seeking maximum savings on their Miami to Washington, D.C. Dulles Intl Airport flight should consider departing on Wednesday afternoons when fares are most often at their lowest. Monday at noon flights should be avoided if possible as fares are typically the most expensive at this time.

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 $2,598 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 $79.

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

Consider United Airlines (89%), Copa Airlines (77%) or Frontier (54%) when booking your flight. These represent the most reliable airlines when flying from Miami to Washington, D.C. Dulles Intl Airport.

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 American Airlines, Delta or Frontier as they are the most popular for this route.

What is the cheapest day to fly round-trip from Miami to Washington, D.C. Dulles Intl Airport?

Flying to your destination on a Sunday can be more expensive, but this shouldn’t discourage you from finding affordable options to get to Washington, D.C. Dulles Intl Airport. Check prices with Cheapflights to find a great deal for your trip.

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

Due to multiple factors, expect to potentially pay more when booking in December. For low rates, February can be a great choice for travel to Washington, D.C. Dulles Intl Airport. Flights to Washington, D.C. Dulles Intl Airport from Miami in February are about $178 on average during February, but can be found for as low as $49.

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.

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.

$61+ Flights from Miami to Washington, D.C. Dulles Intl Airport

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Cheapflights Tip: The best prices from Miami to Washington, D.C. Dulles Intl are usually found in June or July, booked 65 days in advance, depart on a Friday or Thursday and return on a Monday

Cheap flight deals from Miami to Dulles Intl

Round-trip from	$110 (FlightHub)
One-way from	$61 (Booking.com)
Popular in	December
Cheapest in	June
Average price	$173
Good round-trip deal	$116 or less
Good one-way deal	$64 or less

From Miami to Washington, D.C. Dulles Intl

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One-way flight from Miami to Washington, D.C. Dulles Intl

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Highest demand for flights based on searches. 16% potential increase in price ($46 potential increase over avg. RT price).

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Cheapest flight prices on average. 3% potential price decrease ($9 potential savings vs. average RT price).

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Average for round-trip flights in July 2025

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Price to beat on a one-way flight from Miami to Washington, D.C. Dulles Intl.

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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 28, 2025.

Fri 8/294:34 pmMIA - IAD

Nonstop2h 50mFrontier

Mon 9/18:19 pmIAD - MIA

Nonstop2h 47mFrontier

Deal found 7/26

$110

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 July 28, 2025.

Fri 8/294:34 pmMIA - IAD

Nonstop2h 50mFrontier

Mon 9/18:19 pmIAD - MIA

Nonstop2h 47mFrontier

Deal found 7/26

$110

Last-minute flights from Miami to Dulles Intl
Discover last-minute flight deals from Miami to Dulles Intl. Data last updated July 28, 2025 and is based on user searches.

Sat 8/25:30 amMIA - IAD

1 stop4h 26mDelta

Mon 8/46:00 amIAD - MIA

1 stop5h 40mDelta

Deal found 7/27

$387

Wed 8/61:35 pmMIA - IAD

Nonstop2h 40mUnited Airlines

Wed 8/139:00 amIAD - MIA

Nonstop2h 49mUnited Airlines

Deal found 7/26

$281

Thu 8/73:50 pmMIA - IAD

Nonstop2h 50mFrontier

Sun 8/109:58 pmIAD - MIA

Nonstop2h 47mFrontier

Deal found 7/25

$125

Wed 8/2712:50 pmMIA - IAD

Nonstop2h 35mUnited Airlines

Tue 9/28:30 amIAD - MIA

Nonstop2h 50mUnited Airlines

Deal found 7/27

$163

Fri 8/294:34 pmMIA - IAD

Nonstop2h 50mFrontier

Mon 9/18:19 pmIAD - MIA

Nonstop2h 47mFrontier

Deal found 7/26

$110

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 July 28, 2025.

Mon 8/254:34 pmMIA - IAD

Nonstop2h 50mFrontier

Deal found 7/27

$61

Thu 8/711:11 amMIA - IAD

1 stop13h 08mMultiple Airlines

Deal found 7/26

$69

Tue 9/301:15 pmMIA - IAD

Nonstop2h 35mUnited Airlines

Deal found 7/28

$74

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

MiamiWashington, D.C.

MIA - IAD

MIAIAD

Miami

Fri 8/29

4:34 pm-7:24 pm

Nonstop2h 50m

Washington, D.C. Dulles Intl

Mon 9/1

8:19 pm-11:06 pm

Nonstop2h 47m

$110

MiamiWashington, D.C.

MIA - IAD

MIAIAD

Miami

Mon 8/25

4:34 pm-7:24 pm

Nonstop2h 50m

$61

MiamiWashington, D.C.

MIA - IAD

MIAIAD

Miami

Thu 8/7

11:11 am-12:19 am

1 stop13h 08m

$69

MiamiWashington, D.C.

MIA - IAD

MIAIAD

Miami

Tue 9/30

1:15 pm-3:50 pm

Nonstop2h 35m

$74

Flights are sorted by cheapest round-trip flights first.

Deals found on 7/27

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

Airports

MIA

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

IAD

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

Our travel experts

Ramsey Qubein

Expert on MIA and IAD

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 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 $309). 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?

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

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

8,892 reviews

Reviews

1 / 20

2.0

Mediocre

Deb,Jan 2025

MKE - ORD

It was terrible! So much to say, but in a nutshell we used vouchers from United because our last trip with them was awful with many mishaps and errors made. Unfortunately, this trip was even worse!

United Airlines

7.4

Good

8,892 reviews

United Airlines

7.4

Good

8,892 reviews

Reviews

1 / 20

2.0

Mediocre

Deb,Jan 2025

MKE - ORD

It was terrible! So much to say, but in a nutshell we used vouchers from United because our last trip with them was awful with many mishaps and errors made. Unfortunately, this trip was even worse!

Frontier

5.9

Fair

3,238 reviews

United Airlines

7.4

Good

8,892 reviews

Reviews

1 / 20

2.0

Mediocre

Deb,Jan 2025

MKE - ORD

It was terrible! So much to say, but in a nutshell we used vouchers from United because our last trip with them was awful with many mishaps and errors made. Unfortunately, this trip was even worse!

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. 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.
What is the cheapest airline to fly 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 $110. This flight start at 53% 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 (89%), Copa Airlines (77%) or Frontier (54%) 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 $2,598 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 $79.
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 $309). 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

Woodbridge

Arlington

Alexandria

Tysons

Silver Spring

Fredericksburg

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Easton

Towson

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Fairfax

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Oxon Hill

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National Harbor

Dundalk

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Top 5 airlines flying from Miami to Dulles Intl

Airline	Cheapest	Average	Flexibility	On-time
Frontier	Cheapest$78	Average$152	FlexibilityNo cancel fee	On-time62%
Spirit Airlines	Cheapest$96	Average$144	FlexibilityNo cancel fee	On-time65%
Delta	Cheapest$127	Average$167	FlexibilityNo cancel fee	On-timeN/A
United Airlines	Cheapest$137	Average$275	FlexibilityNo cancel fee	On-time69%
American Airlines	Cheapest$250	Average$328	FlexibilityNo cancel fee	On-time71%

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$61+ 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 8/25. Fares are subject to change and may not be available on all flights or dates of travel.

Find cheap flights from Miami to Dulles Intl with Cheapflights

1. Tell us where you want to go

2. Select your favorite providers

3. Compare prices and book

Cheapflights Tip: The best prices from Miami to Washington, D.C. Dulles Intl are usually found in June or July, booked 65 days in advance, depart on a Friday or Thursday and return on a Monday

Cheap flight deals from Miami to Dulles Intl

Round-trip from

One-way from

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Cheapest in

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Good round-trip deal

Good one-way deal

Find 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 July 28, 2025.

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 28, 2025.

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.

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

Airports

MIA

IAD

Our travel experts

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

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 July 25, 2025.

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?

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 28, 2025.

Reviews of airlines servicing Dulles Intl

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.

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?

What is the cheapest airline to fly from Miami to Washington, D.C. Dulles Intl Airport round-trip?

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

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

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

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

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

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

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

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Alternative routes for Miami to Dulles Intl

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Top 5 airlines flying from Miami to Dulles Intl

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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 28, 2025.