Dulles Intl

$87+ Cheap flights from Dallas 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 5/19. Fares are subject to change and may not be available on all flights or dates of travel.
DFW — IAD
Mar 12 — Mar 191
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Find cheap flights from Dallas to Dulles Intl with Cheapflights

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

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

Cheap flight deals from Dallas to Dulles Intl

Cheapest flights from Dallas to Dulles Intl
Explore the most affordable flight options available from Dallas to Dulles Intl. Find the lowest fares from popular airlines and budget airlines, with prices last updated on February 10, 2026.

This Kiwi.com deal was found by Cheapflights users on 2/8. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 4/232:16 pm
DFW
-
IAD
Nonstop3h 03m
Frontier
Tue 4/286:20 am
IAD
-
DFW
1 stop14h 06m
Frontier
Deal found 2/8$115
This Frontier deal was found by Cheapflights users on 2/7. 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 2/275:30 am
DFW
-
IAD
Nonstop2h 55m
Frontier
Mon 3/210:20 am
IAD
-
DFW
Nonstop3h 43m
Frontier
Deal found 2/7$118
This Kiwi.com deal was found by Cheapflights users on 2/7. 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.
Fri 2/276:10 am
DFW
-
IAD
1 stop26h 24m
Frontier
Sun 3/86:30 pm
IAD
-
DFW
Nonstop3h 43m
Frontier
Deal found 2/7$121
This Kiwi.com deal was found by Cheapflights users on 2/9. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 5/136:51 pm
DFW
-
IAD
1 stop11h 36m
Frontier
Mon 5/187:04 pm
IAD
-
DFW
Nonstop3h 38m
Frontier
Deal found 2/9$122
This Kiwi.com deal was found by Cheapflights users on 2/8. 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.
Fri 4/248:40 pm
DFW
-
IAD
1 stop12h 14m
Multiple Airlines
Mon 4/277:04 pm
IAD
-
DFW
Nonstop3h 38m
Multiple Airlines
Deal found 2/8$123
This eDestinos deal was found by Cheapflights users on 2/9. 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 eDestinos is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 3/188:46 am
DFW
-
IAD
1 stop14h 35m
Frontier
Tue 3/247:00 am
IAD
-
DFW
1 stop16h 53m
Frontier
Deal found 2/9$125
This Kiwi.com deal was found by Cheapflights users on 2/8. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 3/108:46 am
DFW
-
IAD
1 stop14h 45m
Frontier
Tue 3/177:00 am
IAD
-
DFW
1 stop11h 08m
Frontier
Deal found 2/8$131
This Kiwi.com deal was found by Cheapflights users on 2/8. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 3/52:02 pm
DFW
-
IAD
Nonstop2h 55m
Frontier
Tue 3/177:00 am
IAD
-
DFW
1 stop11h 08m
Frontier
Deal found 2/8$133
This Expedia deal was found by Cheapflights users on 2/9. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 4/237:01 pm
DFW
-
IAD
1 stop11h 26m
Frontier
Sun 4/267:04 pm
IAD
-
DFW
Nonstop3h 38m
Frontier
Deal found 2/9$134
This Kiwi.com deal was found by Cheapflights users on 2/7. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 3/52:02 pm
DFW
-
IAD
Nonstop2h 55m
Multiple Airlines
Mon 3/96:20 am
IAD
-
DFW
1 stop25h 42m
Multiple Airlines
Deal found 2/7$135
This Delta deal was found by Cheapflights users on 2/6. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 3/106:40 pm
DAL
-
IAD
1 stop4h 47m
Delta
Wed 3/116:01 am
IAD
-
DAL
1 stop6h 26m
Delta
Deal found 2/6$217
This Delta deal was found by Cheapflights users on 2/6. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 3/66:38 pm
DAL
-
IAD
1 stop4h 43m
Delta
Wed 3/1110:06 am
IAD
-
DAL
1 stop6h 07m
Delta
Deal found 2/6$237

Find flight deals from Dallas to Dulles Intl

Discover tips and strategies to find the most affordable flight options for your journey from Dallas (A78) 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 February 10, 2026.

Round-trip from

$115
(Kiwi.com)

One-way from

$87
(Kiwi.com)

Popular in

December

Cheapest in

August

Average price

$198
From Dallas to Washington, D.C. Dulles Intl
One-way flight from Dallas to Washington, D.C. Dulles Intl
Highest demand for flights based on searches. 14% potential increase in price ($41 potential increase over avg. RT price).
Cheapest flight prices on average. 4% potential price decrease ($11 potential savings vs. average RT price).
Average for round-trip flights in February 2026

Cheapflights Fare Finder

 
Customize your flight search to find flights from Dallas 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 February 10, 2026.
Use the filters below to find and compare flights from Dallas to Washington, D.C. Dulles Intl Airport that are best for you.

Fly from

Dallas

Fly to

Dulles Intl

Route

Depart

Return

Price

DallasWashington, D.C.

DFW - IAD

DFWIAD

Dallas/Fort Worth

Sat 5/9

5:25 pm-9:25 pm

Nonstop3h 00m

Washington, D.C. Dulles Intl

Sun 5/10

5:55 pm-8:33 pm

Nonstop3h 38m

$175

DallasWashington, D.C.

DFW - IAD

DFWIAD

Dallas/Fort Worth

Thu 4/30

7:01 pm-7:27 am

1 stop11h 26m

Washington, D.C. Dulles Intl

Sat 5/2

10:51 am-7:26 pm

1 stop9h 35m

$180

DallasWashington, D.C.

DFW - IAD

DFWIAD

Dallas/Fort Worth

Sun 5/3

7:20 am-11:23 am

Nonstop3h 03m

Washington, D.C. Dulles Intl

Sun 5/10

8:35 am-11:11 am

Nonstop3h 36m

$197

DallasWashington, D.C.

DFW - IAD

DFWIAD

Dallas/Fort Worth

Sat 5/16

2:20 pm-10:49 pm

1 stop7h 29m

Washington, D.C. Dulles Intl

Sun 5/17

8:35 am-11:11 am

Nonstop3h 36m

$214

DallasWashington, D.C.

DFW - IAD

DFWIAD

Dallas/Fort Worth

Sat 3/7

4:14 pm-11:59 pm

1 stop6h 45m

Washington, D.C. Dulles Intl

Tue 3/10

5:50 pm-8:34 pm

Nonstop3h 44m

$214

DallasWashington, D.C.

DFW - IAD

DFWIAD

Dallas/Fort Worth

Fri 4/24

9:56 am-4:31 pm

1 stop5h 35m

Washington, D.C. Dulles Intl

Sun 4/26

7:14 pm-12:32 am

1 stop6h 18m

$217

DallasWashington, D.C.

DFW - IAD

DFWIAD

Dallas/Fort Worth

Wed 3/25

5:55 am-11:32 am

1 stop4h 37m

Washington, D.C. Dulles Intl

Wed 4/15

6:00 am-10:21 am

1 stop5h 21m

$217

DallasWashington, D.C.

DFW - IAD

DFWIAD

Dallas/Fort Worth

Fri 5/1

5:49 am-2:04 pm

1 stop7h 15m

Washington, D.C. Dulles Intl

Tue 5/5

5:27 pm-10:07 pm

1 stop5h 40m

$217

DallasWashington, D.C.

DFW - IAD

DFWIAD

Dallas/Fort Worth

Sat 3/28

11:31 am-6:39 pm

1 stop6h 08m

Washington, D.C. Dulles Intl

Tue 4/14

3:00 pm-10:07 pm

1 stop8h 07m

$217

DallasWashington, D.C.

DFW - IAD

DFWIAD

Dallas/Fort Worth

Sat 5/16

9:55 am-4:32 pm

1 stop5h 37m

Washington, D.C. Dulles Intl

Tue 5/19

3:08 pm-8:02 pm

1 stop5h 54m

$217

Flights are sorted by cheapest round-trip flights first.

Deals found on 2/8

Showing 1-10 of 41 results
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Best time to book a flight from Dallas to Dulles Intl

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

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

Use this chart to determine the optimal time to book a round-trip flight from Dallas to Dulles Intl. Price data was last updated on February 6, 2026.

The price you pay for your flight from Dallas 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 81 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 Dallas to Washington, D.C. Dulles Intl Airport?

Currently, May is the cheapest month in which you can book a flight from Dallas to Washington, D.C. Dulles Intl Airport (average of $60). Flying from Dallas to Washington, D.C. Dulles Intl Airport in April is currently the most expensive (average of $237). 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 DFW to IAD?

Find hourly flight availability from Dallas 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 February 10, 2026.

When flying from Dallas to Washington, D.C. Dulles Intl Airport, the time of day you fly usually plays a role in the price. Save by searching for a flight in the evening, which can drop the price by up to 45% versus a flight in the afternoon.

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

Use this chart to determine the cheapest time to fly round-trip from Dallas to Dulles Intl. Price data was last updated on February 7, 2026.

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

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

About 19% of weekly flights between Dallas and Washington, D.C. have experienced delays in the past year, with the average delay time being 144 minutes.

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

Historically, flights departing in the morning 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 Saturday has historically faced a higher average of delays compared to other days of the week.

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

Over the last year, Frontier have had the lowest number of delays on this route, with just 9% of flights being delayed.

The best insider tips for Dallas 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 Dallas to Washington, D.C. Dulles Intl Airport trip
Our travel experts
Chris Dong

Chris Dong

Expert on DFW

Chris is a consumer travel reporter covering aviation, trending travel news, hotels, and loyalty programs—all for leading global publications like Travel + Leisure, The Washington Post, AFAR, and more. In addition to writing, Chris is a video host for Travel + Leisure, giving consumers an inside look at the latest in air travel.

Ramsey Qubein

Ramsey Qubein

Expert on 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.

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 February 10, 2026.
Read reviews from past customers who have flown Delta, United Airlines, and American Airlines from Dallas to Washington, D.C. Dulles Intl Airport. Users can see the overall rating for each airline as well as how each is rated in terms of entertainment options, comfort, food, crew/service, and boarding process.

Overall

7.9

Comfort

7.9

Crew

8.5

Food

7.2

Entertainment

7.8

Boarding

8.1

Reviews

1 / 20
6.0
Good

Jim,Nov 2025

AVL - ATL

The exit row seats without a seat in front are great for leg room but don’t have a fold out entertainment console so you’re forced to use the screen several feet in front of you (there is, at least, a remote). Best to bring a tablet loaded with entertainment or a book.

Overall

7.9

Comfort

7.9

Crew

8.5

Food

7.2

Entertainment

7.8

Boarding

8.1

Reviews

1 / 20
6.0
Good

Jim,Nov 2025

AVL - ATL

The exit row seats without a seat in front are great for leg room but don’t have a fold out entertainment console so you’re forced to use the screen several feet in front of you (there is, at least, a remote). Best to bring a tablet loaded with entertainment or a book.

Overall

7.9

Comfort

7.9

Crew

8.5

Food

7.2

Entertainment

7.8

Boarding

8.1

Reviews

1 / 20
6.0
Good

Jim,Nov 2025

AVL - ATL

The exit row seats without a seat in front are great for leg room but don’t have a fold out entertainment console so you’re forced to use the screen several feet in front of you (there is, at least, a remote). Best to bring a tablet loaded with entertainment or a book.

Overall

7.9

Comfort

7.9

Crew

8.5

Food

7.2

Entertainment

7.8

Boarding

8.1

Reviews

1 / 20
6.0
Good

Jim,Nov 2025

AVL - ATL

The exit row seats without a seat in front are great for leg room but don’t have a fold out entertainment console so you’re forced to use the screen several feet in front of you (there is, at least, a remote). Best to bring a tablet loaded with entertainment or a book.

Overall

7.9

Comfort

7.9

Crew

8.5

Food

7.2

Entertainment

7.8

Boarding

8.1

Reviews

1 / 20
6.0
Good

Jim,Nov 2025

AVL - ATL

The exit row seats without a seat in front are great for leg room but don’t have a fold out entertainment console so you’re forced to use the screen several feet in front of you (there is, at least, a remote). Best to bring a tablet loaded with entertainment or a book.

Related info for your journey

Find useful and relevant information for your journey from Dallas to Dulles Intl. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.
  • How long is the flight from Dallas to Washington, D.C. Dulles Intl Airport?

    For as low as $175, United Airlines can have you in Washington, D.C. Dulles Intl Airport from Dallas in 3h. The distance between Dallas and Washington, D.C. Dulles Intl Airport is about 1169 mi. Both multi-stop and nonstop flights can be found to your destination and back.

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

    Our cheapest airline available from Dallas to Washington, D.C. Dulles Intl Airport is Frontier. Our recent data shows that you can find tickets from as low as $66 on this airline. Additional options worth looking into are Delta and American Airlines, starting at $134 and $148 round-trip. Frontier is currently priced 74% below the average price you’ll pay for this route.

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

    The cheapest airline one-way is Frontier, with whom users have recently found tickets for as low as $44. However, be on the lookout for offers from American Airlines and United Airlines, as they are both options that can get you from Dallas to Washington, D.C. Dulles Intl Airport for a low price.

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

    The top 3 most reliable airlines when flying from Dallas to Washington, D.C. Dulles Intl Airport are Volaris (92%), Brussels Airlines (78%) and Frontier (78%).

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

    Looking at all options, your cheapest flight can be booked for $44. While the most popular route (Dallas/Fort Worth - Washington, D.C. Dulles Intl) can be booked for $138 on average, our data indicates $830 when flying from Dallas to Washington, D.C. Dulles Intl Airport.

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

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

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

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

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

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

    Currently, May is the cheapest month in which you can book a flight from Dallas to Washington, D.C. Dulles Intl Airport (average of $60). Flying from Dallas to Washington, D.C. Dulles Intl Airport in April is currently the most expensive (average of $237). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

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

Book flights to Washington, D.C. Dulles Intl Airport if you plan to visit one of these locations
Alexandria
Woodbridge
Tysons
Arlington
Owings Mills
Springfield
Silver Spring
Herndon
Fredericksburg
Hanover
Laurel
Linthicum Heights
Rockville
Upper Marlboro
Manassas
Bowie
Largo
McLean
Clinton
Towson

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Alternative routes for Dallas to Dulles Intl

See prices for flight routes from nearby airports that may be better suited for you.

Top 4 airlines flying from Dallas to Dulles Intl

Discover the top 4 airlines that operate flights from Dallas 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 February 10, 2026.
AirlineCheapestAverageFlexibilityOn-time
FrontierCheapest$66Average$157FlexibilityNo cancel feeOn-time62%
DeltaCheapest$134Average$310FlexibilityNo cancel feeOn-timeN/A
American AirlinesCheapest$148Average$290FlexibilityNo cancel feeOn-time71%
United AirlinesCheapest$174Average$331FlexibilityNo cancel feeOn-time69%

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