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$53+ Cheap flights from Dulles Intl (IAD) to Miami (MIA)

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 2/27. Fares are subject to change and may not be available on all flights or dates of travel.
IAD — MIA
Jan 22 — Jan 291
Thu 1/22
Thu 1/29
1 adult, Economy
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Cheapflights Tip: The best prices from Washington, D.C. Dulles Intl to Miami are usually found in September or June, booked 34 days in advance, depart on a Sunday or Monday and return on a Friday

Cheap flight deals from Dulles Intl to Miami

Cheapest flights from Dulles Intl to Miami
Explore the most affordable flight options available from Dulles Intl to Miami. Find the lowest fares from popular airlines and budget airlines, with prices last updated on December 23, 2025.

This Frontier deal was found by Cheapflights users on 12/22. 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.
Wed 12/317:01 pmIAD - MIA
1 stop5h 46mFrontier
Fri 1/1610:19 amMIA - IAD
Nonstop2h 44mFrontier
Deal found 12/22$110
This Frontier deal was found by Cheapflights users on 12/20. 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.
Mon 12/292:09 pmIAD - MIA
Nonstop2h 45mFrontier
Thu 1/810:22 amMIA - IAD
Nonstop2h 39mFrontier
Deal found 12/20$118
This Frontier deal was found by Cheapflights users on 12/22. 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.
Wed 12/317:01 pmIAD - MIA
1 stop5h 46mFrontier
Thu 1/810:22 amMIA - IAD
Nonstop2h 39mFrontier
Deal found 12/22$121
This Kiwi.com deal was found by Cheapflights users on 12/20. 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 12/317:01 pmIAD - MIA
1 stop5h 46mMultiple Airlines
Thu 1/157:00 amMIA - IAD
1 stop9h 52mMultiple Airlines
Deal found 12/20$153
This Kiwi.com deal was found by Cheapflights users on 12/22. 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 12/317:01 pmIAD - MIA
1 stop5h 46mFrontier
Sat 1/175:15 amMIA - IAD
1 stop5h 52mFrontier
Deal found 12/22$156
This Kiwi.com deal was found by Cheapflights users on 12/20. 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 12/317:01 pmIAD - MIA
1 stop5h 46mFrontier
Thu 1/155:15 amMIA - IAD
1 stop6h 28mFrontier
Deal found 12/20$157
This Super.com deal was found by Cheapflights users on 12/22. 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 Super.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 12/292:09 pmIAD - MIA
Nonstop2h 45mFrontier
Mon 1/2612:19 pmMIA - IAD
Nonstop2h 44mFrontier
Deal found 12/22$161
This United Airlines deal was found by Cheapflights users on 12/20. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/315:10 pmIAD - MIA
Nonstop3h 01mUnited Airlines
Thu 1/156:25 pmMIA - IAD
Nonstop2h 46mUnited Airlines
Deal found 12/20$167
This Kiwi.com deal was found by Cheapflights users on 12/21. 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.
Sun 12/288:26 pmIAD - MIA
1 stop9h 34mFrontier
Thu 1/810:22 amMIA - IAD
Nonstop2h 39mFrontier
Deal found 12/21$169
This Frontier deal was found by Cheapflights users on 12/22. 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.
Tue 12/305:37 pmIAD - MIA
1 stop7h 10mFrontier
Sat 1/1711:19 amMIA - IAD
Nonstop2h 44mFrontier
Deal found 12/22$180

Find flight deals from Dulles Intl to Miami

Discover tips and strategies to find the most affordable flight options for your journey from Dulles Intl (IAD) to Miami (MIA). 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 December 23, 2025.

Most accurate provider

CheapOair
3 stars

Most trusted provider

CheapOair
3 stars

Round-trip from

$79
(Frontier)

One-way from

$53
(Super.com)

Popular in

April

Cheapest in

September

Average price

$243

Good round-trip deal

$99 or less

Good one-way deal

$72 or less
Provider with most accurate pricing for Washington, D.C. Dulles Intl-Miami flight deals.
Search Deals
Provider most trusted by Cheapflights users for Washington, D.C. Dulles Intl-Miami flights.
Search Deals
From Washington, D.C. Dulles Intl to Miami
Search Deals
One-way flight from Washington, D.C. Dulles Intl to Miami
Search Deals
Highest demand for flights based on searches. 25% potential increase in price ($79 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 6% potential price decrease ($15 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in December 2025
Search Deals
Price to beat on a round-trip flight from Washington, D.C. Dulles Intl to Miami.
Search Deals
Price to beat on a one-way flight from Washington, D.C. Dulles Intl to Miami.
Search Deals

Cheapflights Fare Finder

 
Customize your flight search to find flights from Dulles Intl to Miami 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 December 23, 2025.
Use the filters below to find and compare flights from Washington, D.C. Dulles Intl Airport to Miami that are best for you.

Fly from

Dulles Intl

Fly to

Miami

Route

Depart

Return

Price

Washington, D.C.Miami

IAD - MIA

IADMIA

Washington, D.C. Dulles Intl

Wed 1/21

1:20 pm-4:22 pm

Nonstop3h 02m

Miami

Wed 1/28

5:40 pm-11:18 pm

1 stop5h 38m

$159

Washington, D.C.Miami

IAD - MIA

IADMIA

Washington, D.C. Dulles Intl

Wed 1/14

1:20 pm-4:22 pm

Nonstop3h 02m

Miami

Wed 1/21

5:40 pm-11:18 pm

1 stop5h 38m

$179

Washington, D.C.Miami

IAD - MIA

IADMIA

Washington, D.C. Dulles Intl

Mon 1/26

1:20 pm-4:22 pm

Nonstop3h 02m

Miami

Tue 1/27

1:45 pm-4:25 pm

Nonstop2h 40m

$181

Washington, D.C.Miami

IAD - MIA

IADMIA

Washington, D.C. Dulles Intl

Sat 1/24

1:20 pm-4:22 pm

Nonstop3h 02m

Miami

Wed 1/28

6:25 pm-9:11 pm

Nonstop2h 46m

$188

Washington, D.C.Miami

IAD - MIA

IADMIA

Washington, D.C. Dulles Intl

Sat 1/24

8:29 am-4:34 pm

1 stop8h 05m

Miami

Tue 1/27

4:54 pm-11:18 pm

1 stop6h 24m

$191

Washington, D.C.Miami

IAD - MIA

IADMIA

Washington, D.C. Dulles Intl

Thu 1/22

1:20 pm-4:22 pm

Nonstop3h 02m

Miami

Wed 1/28

6:25 pm-9:11 pm

Nonstop2h 46m

$197

Washington, D.C.Miami

IAD - MIA

IADMIA

Washington, D.C. Dulles Intl

Wed 1/21

8:29 am-4:34 pm

1 stop8h 05m

Miami

Fri 1/23

5:40 pm-11:18 pm

1 stop5h 38m

$201

Washington, D.C.Miami

IAD - MIA

IADMIA

Washington, D.C. Dulles Intl

Wed 1/21

6:00 am-12:38 pm

1 stop6h 38m

Miami

Mon 1/26

6:25 pm-9:11 pm

Nonstop2h 46m

$210

Washington, D.C.Miami

IAD - MIA

IADMIA

Washington, D.C. Dulles Intl

Tue 1/20

1:20 pm-4:22 pm

Nonstop3h 02m

Miami

Sat 1/24

6:25 pm-9:11 pm

Nonstop2h 46m

$219

Washington, D.C.Miami

IAD - MIA

IADMIA

Washington, D.C. Dulles Intl

Mon 1/5

8:45 am-11:47 am

Nonstop3h 02m

Miami

Tue 1/13

6:25 pm-9:11 pm

Nonstop2h 46m

$222

Flights are sorted by cheapest round-trip flights first.

Deals found on 12/22

Showing 1-10 of 22 results
1
2
3

Compare providers for flights from Dulles Intl to Miami

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 Dulles Intl to Miami in December.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy2 starsTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*1 star
eDreamsPrice Accuracy3 starsTrust Score*3 stars
JustAirTicketPrice Accuracy-Trust Score*1 star
CheapOairPrice Accuracy3 starsTrust Score*3 stars
Kiwi.comPrice Accuracy3 starsTrust Score*3 stars
PricelinePrice Accuracy1 starTrust Score*3 stars
OvagoPrice Accuracy2 starsTrust Score*2 stars
GotogatePrice Accuracy3 starsTrust Score*3 stars
Trip.comPrice Accuracy2 starsTrust Score*3 stars

*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 Washington, D.C. Dulles Intl Airport-Miami flights, users find the pricing of CheapOair to be most consistent on Cheapflights vs. CheapOair Users can find the same prices on Washington, D.C. Dulles Intl Airport-Miami flight deals on Cheapflights vs. CheapOair >95% of the time. Price accuracy is based on data collected from Washington, D.C. Dulles Intl Airport-Miami flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on Washington, D.C. Dulles Intl Airport-Miami flights, Cheapflights users trust CheapOair the most. CheapOair 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 Washington, D.C. Dulles Intl Airport-Miami 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 Dulles Intl to Miami

Have a flexible travel schedule? Discover the best time to fly to Miami from Dulles Intl 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 Washington, D.C. Dulles Intl Airport to Miami

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

Use this chart to determine the optimal time to book a round-trip flight from Dulles Intl to Miami. Price data was last updated on December 19, 2025.

The price you pay for your flight from Washington, D.C. Dulles Intl Airport to Miami may vary depending on when you book. For the best chance of a lower fare, look to book 34 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 Washington, D.C. Dulles Intl Airport to Miami?

Currently, December is the cheapest month in which you can book a flight from Washington, D.C. Dulles Intl Airport to Miami (average of $47). Flying from Washington, D.C. Dulles Intl Airport to Miami in April is currently the most expensive (average of $147). 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 IAD to MIA?

Find hourly flight availability from Dulles Intl to Miami. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated December 23, 2025.

It’s optimal to fly from Washington, D.C. Dulles Intl Airport to Miami in the afternoon. By choosing this option you can save up to 47% on the cost of your flight, compared to a flight in the morning.

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

Use this chart to determine the cheapest time to fly round-trip from Dulles Intl to Miami. Price data was last updated on December 20, 2025.

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

The best insider tips for Washington, D.C. Dulles Intl Airport to Miami 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 Washington, D.C. Dulles Intl Airport to Miami trip
Airports
IAD

For a quick check-in, locate your airline counter on either side of the main terminal's first row.

Read more about IADBy Ramsey Qubein
MIA

Use the MIA Mover train to reach the Miami Intermodal Center for rental cars and public transport options.

Read more about MIABy 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

Reviews of airlines servicing Miami

Get insights into the airlines that provide service to Miami. 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 Miami. Reviews last updated December 23, 2025.
Read through reviews of airlines operating flights from Washington, D.C. Dulles Intl Airport to Miami, such as Delta, United Airlines, and American Airlines. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
Delta
7.9
Good
8,013 reviews

Entertainment

7.9

Crew

8.5

Overall

7.9

Food

7.3

Boarding

8.1

Comfort

7.9

Reviews

1 / 20
2.0
Mediocre

Joseph,Aug 2023

MSP - MCO

Even if you have delta comfort plus, they will move your overhead bag. One of the perks for upgrading is that you have dedicated space for your carry on with comfort plus with delta. They moved my carry on luggage (3) compartments back and put in bags for other passengers that should have gone under their respective seats. When deboarding the plane, there was no help from anyone to retrieve my luggage back several rows. Delta is turning into pure garbage.
Delta
7.9
Good
8,013 reviews
Delta
7.9
Good
8,013 reviews

Entertainment

7.9

Crew

8.5

Overall

7.9

Food

7.3

Boarding

8.1

Comfort

7.9

Reviews

1 / 20
2.0
Mediocre

Joseph,Aug 2023

MSP - MCO

Even if you have delta comfort plus, they will move your overhead bag. One of the perks for upgrading is that you have dedicated space for your carry on with comfort plus with delta. They moved my carry on luggage (3) compartments back and put in bags for other passengers that should have gone under their respective seats. When deboarding the plane, there was no help from anyone to retrieve my luggage back several rows. Delta is turning into pure garbage.
United Airlines
7.4
Good
9,106 reviews
Delta
7.9
Good
8,013 reviews

Entertainment

7.9

Crew

8.5

Overall

7.9

Food

7.3

Boarding

8.1

Comfort

7.9

Reviews

1 / 20
2.0
Mediocre

Joseph,Aug 2023

MSP - MCO

Even if you have delta comfort plus, they will move your overhead bag. One of the perks for upgrading is that you have dedicated space for your carry on with comfort plus with delta. They moved my carry on luggage (3) compartments back and put in bags for other passengers that should have gone under their respective seats. When deboarding the plane, there was no help from anyone to retrieve my luggage back several rows. Delta is turning into pure garbage.
American Airlines
7.2
Good
11,054 reviews
Delta
7.9
Good
8,013 reviews

Entertainment

7.9

Crew

8.5

Overall

7.9

Food

7.3

Boarding

8.1

Comfort

7.9

Reviews

1 / 20
2.0
Mediocre

Joseph,Aug 2023

MSP - MCO

Even if you have delta comfort plus, they will move your overhead bag. One of the perks for upgrading is that you have dedicated space for your carry on with comfort plus with delta. They moved my carry on luggage (3) compartments back and put in bags for other passengers that should have gone under their respective seats. When deboarding the plane, there was no help from anyone to retrieve my luggage back several rows. Delta is turning into pure garbage.
Spirit Airlines
6.3
Okay
8,195 reviews
Delta
7.9
Good
8,013 reviews

Entertainment

7.9

Crew

8.5

Overall

7.9

Food

7.3

Boarding

8.1

Comfort

7.9

Reviews

1 / 20
2.0
Mediocre

Joseph,Aug 2023

MSP - MCO

Even if you have delta comfort plus, they will move your overhead bag. One of the perks for upgrading is that you have dedicated space for your carry on with comfort plus with delta. They moved my carry on luggage (3) compartments back and put in bags for other passengers that should have gone under their respective seats. When deboarding the plane, there was no help from anyone to retrieve my luggage back several rows. Delta is turning into pure garbage.
Frontier
5.8
Fair
3,074 reviews
Delta
7.9
Good
8,013 reviews

Entertainment

7.9

Crew

8.5

Overall

7.9

Food

7.3

Boarding

8.1

Comfort

7.9

Reviews

1 / 20
2.0
Mediocre

Joseph,Aug 2023

MSP - MCO

Even if you have delta comfort plus, they will move your overhead bag. One of the perks for upgrading is that you have dedicated space for your carry on with comfort plus with delta. They moved my carry on luggage (3) compartments back and put in bags for other passengers that should have gone under their respective seats. When deboarding the plane, there was no help from anyone to retrieve my luggage back several rows. Delta is turning into pure garbage.

Related info for your journey

Find useful and relevant information for your journey from Dulles Intl to Miami. 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 into for flights to Miami from Washington, D.C. Dulles Intl?

    Most people fly into Miami (MIA) if they book a flight to Miami from Washington, D.C. Dulles Intl. On average, Miami has 4 inbound flights from Washington, D.C. Dulles Intl per day from 6 airlines. Miami is conveniently located just 6.1 mi from Miami’s city center.

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

    Airlines like United Airlines fly from Washington, D.C. Dulles Intl Airport to Miami in about 3h 02m. The time it takes to get you to your destination is usually consistent. Washington, D.C. Dulles Intl Airport and Miami are separated by a distance of 923 mi. Generally, flights for this route are nonstop.

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

    Currently priced at $45, Spirit Airlines will fly you from Washington, D.C. Dulles Intl Airport to Miami and back. In addition to Spirit Airlines, many other airlines offer competitively priced options for your trip. Search Cheapflights for deals from Frontier and Delta - these airlines can fly you to your destination from $49 and $89, respectively. These flights start at 81% lower than the current average price 3 months from now.

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

    To fly one-way, consider booking your trip with Frontier, which is currently one of the cheapest options available, starting at $31. Spirit Airlines flights start at $37 while deals on United Airlines start at $83 one-way.

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

    Looking for the most reliable airlines to get you to your destination on time? Our data shows these are most likely to get you from Washington, D.C. Dulles Intl Airport to Miami on time: Volaris (100%), United Airlines (88%), Copa Airlines (80%).

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

    While on average a flight from Washington, D.C. Dulles Intl Airport to Miami is generally $162, our data shows the cheapest flight currently is $29. When looking at the most popular route, (Washington, D.C. Dulles Intl - Miami), you can expect to pay $59 for that flight.

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

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

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

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

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

    Yes. Cheapflights offers flight deals from Dulles Intl to Miami 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 Washington, D.C. Dulles Intl Airport to Miami?

    Currently, December is the cheapest month in which you can book a flight from Washington, D.C. Dulles Intl Airport to Miami (average of $47). Flying from Washington, D.C. Dulles Intl Airport to Miami in April is currently the most expensive (average of $147). 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 Miami?

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Alternative routes for Dulles Intl to Miami

See prices for flight routes from nearby airports that may be better suited for you.
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Top 6 airlines flying from Dulles Intl to Miami

Discover the top 6 airlines that operate flights from Dulles Intl to Miami. 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 December 23, 2025.
AirlineCheapestAverageFlexibilityOn-time
Spirit AirlinesCheapest$51Average$158FlexibilityNo cancel feeOn-time65%
FrontierCheapest$54Average$158FlexibilityNo cancel feeOn-time62%
JetBlueCheapest$97Average$304FlexibilityNo cancel feeOn-time62%
United AirlinesCheapest$127Average$322FlexibilityNo cancel feeOn-time69%
DeltaCheapest$137Average$393FlexibilityNo cancel feeOn-timeN/A
American AirlinesCheapest$252Average$374FlexibilityNo cancel feeOn-time71%

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