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Dulles Intl

$78+ 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 2/25. Fares are subject to change and may not be available on all flights or dates of travel.
DFW — IAD
janv. 1 — janv. 81
jeu. 1/1
jeu. 1/8
1 adult, Economy
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Cheapflights Tip: The best prices from Dallas to Washington, D.C. Dulles Intl are usually found in August or July, booked 64 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 décembre 2, 2025.

This Kiwi.com deal was found by Cheapflights users on 11/29. 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.
sam. 12/66:00 amDFW - IAD
1 stop16h 05mFrontier
mar. 12/99:00 amIAD - DFW
1 stop14h 54mFrontier
Deal found 11/29$127
This Kiwi.com deal was found by Cheapflights users on 11/30. 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.
mer. 12/106:05 amDFW - IAD
1 stop7h 24mFrontier
lun. 12/156:58 pmIAD - DFW
1 stop18h 48mFrontier
Deal found 11/30$128
This Frontier deal was found by Cheapflights users on 12/1. 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.
mer. 12/176:05 amDFW - IAD
1 stop7h 24mFrontier
dim. 1/119:59 pmIAD - DFW
Nonstop3h 40mFrontier
Deal found 12/1$135
This Kiwi.com deal was found by Cheapflights users on 12/1. 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.
mer. 12/106:05 amDFW - IAD
1 stop7h 24mFrontier
dim. 12/149:20 pmIAD - DFW
1 stop11h 21mFrontier
Deal found 12/1$136
This Kiwi.com deal was found by Cheapflights users on 12/1. 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.
lun. 12/157:14 pmDFW - IAD
2 stops42h 15mFrontier
mer. 12/317:01 pmIAD - DFW
1 stop14h 21mFrontier
Deal found 12/1$141
This Kiwi.com deal was found by Cheapflights users on 12/1. 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.
lun. 12/89:10 amDFW - IAD
1 stop7h 15mFrontier
mar. 12/169:00 amIAD - DFW
1 stop14h 54mFrontier
Deal found 12/1$143
This Kiwi.com deal was found by Cheapflights users on 11/30. 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.
sam. 12/1312:20 pmDFW - IAD
1 stop9h 45mMultiple Airlines
dim. 12/149:20 pmIAD - DFW
1 stop11h 21mMultiple Airlines
Deal found 11/30$145
This Kiwi.com deal was found by Cheapflights users on 12/1. 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.
sam. 12/136:00 amDFW - IAD
1 stop16h 05mMultiple Airlines
ven. 1/98:40 amIAD - DFW
2 stops13h 43mMultiple Airlines
Deal found 12/1$146
This Kiwi.com deal was found by Cheapflights users on 11/30. 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.
mer. 12/176:05 amDFW - IAD
1 stop7h 24mMultiple Airlines
mar. 1/2011:00 amIAD - DFW
2 stops32h 10mMultiple Airlines
Deal found 11/30$152
This Southwest deal was found by Cheapflights users on 11/30. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mer. 12/242:30 pmDAL - IAD
1 stop6h 40mSouthwest
jeu. 1/17:40 amIAD - DAL
1 stop9h 25mSouthwest
Deal found 11/30$339
This Delta deal was found by Cheapflights users on 12/1. 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.
mer. 12/244:55 pmDAL - IAD
1 stop4h 57mDelta
jeu. 1/16:00 amIAD - DAL
1 stop17h 33mDelta
Deal found 12/1$370
This Delta deal was found by Cheapflights users on 12/1. 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.
mer. 12/244:55 pmDAL - IAD
1 stop4h 57mDelta
ven. 1/210:57 amIAD - DAL
1 stop7h 52mDelta
Deal found 12/1$381

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 décembre 2, 2025.

Round-trip from

$128
(Kiwi.com)

One-way from

$78
(Kiwi.com)

Popular in

November

Cheapest in

August

Average price

$354
From Dallas to Washington, D.C. Dulles Intl
Search Deals
One-way flight from Dallas to Washington, D.C. Dulles Intl
Search Deals
Highest demand for flights based on searches. 14% potential increase in price ($45 potential increase over avg. RT price).
Search Deals
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 December 2025
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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 décembre 2, 2025.
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

dim. 1/18

5:19 am-11:24 am

1 stop5h 05m

Washington, D.C. Dulles Intl

dim. 1/18

5:50 pm-11:59 pm

1 stop7h 09m

$212

DallasWashington, D.C.

DFW - IAD

DFWIAD

Dallas/Fort Worth

sam. 1/17

5:30 am-11:49 am

1 stop5h 19m

Washington, D.C. Dulles Intl

dim. 1/18

6:00 am-10:56 am

1 stop5h 56m

$217

DallasWashington, D.C.

DFW - IAD

DFWIAD

Dallas/Fort Worth

mer. 1/14

5:30 am-11:49 am

1 stop5h 19m

Washington, D.C. Dulles Intl

mer. 1/14

6:15 pm-12:27 am

1 stop7h 12m

$217

DallasWashington, D.C.

DFW - IAD

DFWIAD

Dallas/Fort Worth

ven. 1/9

11:58 am-8:37 pm

1 stop7h 39m

Washington, D.C. Dulles Intl

dim. 1/11

6:15 pm-12:27 am

1 stop7h 12m

$217

DallasWashington, D.C.

DAL - IAD

DALIAD

Dallas Love Field

jeu. 1/8

6:00 am-1:59 pm

1 stop6h 59m

Washington, D.C. Dulles Intl

dim. 1/11

6:15 pm-10:29 pm

1 stop5h 14m

$218

DallasWashington, D.C.

DAL - IAD

DALIAD

Dallas Love Field

sam. 1/17

6:10 am-11:36 am

1 stop4h 26m

Washington, D.C. Dulles Intl

dim. 1/18

6:20 am-10:30 am

1 stop5h 10m

$218

DallasWashington, D.C.

DFW - IAD

DFWIAD

Dallas/Fort Worth

mer. 12/17

12:10 pm-4:00 pm

Nonstop2h 50m

Washington, D.C. Dulles Intl

mar. 1/6

12:55 pm-3:41 pm

Nonstop3h 46m

$249

DallasWashington, D.C.

DFW - IAD

DFWIAD

Dallas/Fort Worth

jeu. 2/12

12:15 pm-4:11 pm

Nonstop2h 56m

Washington, D.C. Dulles Intl

mer. 2/18

8:20 am-9:59 pm

2 stops14h 39m

$278

DallasWashington, D.C.

DAL - IAD

DALIAD

Dallas Love Field

sam. 1/10

12:50 pm-10:10 pm

1 stop8h 20m

Washington, D.C. Dulles Intl

mar. 1/13

9:05 am-5:40 pm

1 stop9h 35m

$282

DallasWashington, D.C.

DFW - IAD

DFWIAD

Dallas/Fort Worth

jeu. 2/12

7:25 am-11:21 am

Nonstop2h 56m

Washington, D.C. Dulles Intl

dim. 2/15

12:50 pm-6:03 pm

1 stop6h 13m

$287

Flights are sorted by cheapest round-trip flights first.

Deals found on 12/1

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 November 28, 2025.

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 64 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 $63). 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 décembre 2, 2025.

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 58% versus a flight at noon.

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 December 16, 2024.

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

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

Explore weekly flight availability from Dallas to Dulles Intl. Discover flights operating on different days of the week, giving you the flexibility to choose a travel day that best fits your plans. Compare info to find the most convenient option for your journey. Data last updated décembre 2, 2025.

The most flights from A78 to IAD are scheduled on a Monday (16 on average). You will have fewer flight options on Wednesday, which is when the least amount of flights are scheduled (2 on average).

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

About 18% of weekly flights between Dallas and Washington, D.C. have experienced delays in the past year, with the average delay time being 143 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 7% 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
Airports
DFW

DFW offers a DART Orange Line connecting downtown Dallas to Terminal A, making public transit a viable option for reaching the airport.

Read more about DFWby Chris Dong
IAD

The Washington Metro Silver Line reaches IAD in under 40 minutes, offering a cost-effective way to travel to the city.

Read more about IADby Ramsey Qubein
Our travel experts
Chris Dong

Chris Dong

Expert on DFW

Chris Dong

Chris Dong

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.

Read more
Ramsey Qubein

Ramsey Qubein

Expert on 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 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 décembre 2, 2025.
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.
Delta
7.9
Good
8,010 reviews

Crew

8.5

Boarding

8.1

Comfort

7.9

Entertainment

7.9

Food

7.3

Overall

7.9

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.
Delta
7.9
Good
8,010 reviews
Delta
7.9
Good
8,010 reviews

Crew

8.5

Boarding

8.1

Comfort

7.9

Entertainment

7.9

Food

7.3

Overall

7.9

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.
United Airlines
7.4
Good
9,064 reviews
Delta
7.9
Good
8,010 reviews

Crew

8.5

Boarding

8.1

Comfort

7.9

Entertainment

7.9

Food

7.3

Overall

7.9

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.
American Airlines
7.2
Good
11,041 reviews
Delta
7.9
Good
8,010 reviews

Crew

8.5

Boarding

8.1

Comfort

7.9

Entertainment

7.9

Food

7.3

Overall

7.9

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.
Spirit Airlines
6.3
Okay
8,156 reviews
Delta
7.9
Good
8,010 reviews

Crew

8.5

Boarding

8.1

Comfort

7.9

Entertainment

7.9

Food

7.3

Overall

7.9

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.
Frontier
5.8
Fair
3,094 reviews
Delta
7.9
Good
8,010 reviews

Crew

8.5

Boarding

8.1

Comfort

7.9

Entertainment

7.9

Food

7.3

Overall

7.9

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 $212, United Airlines can have you in Washington, D.C. Dulles Intl Airport from Dallas in 5h 05m. 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 $77 on this airline. Additional options worth looking into are Spirit Airlines and Delta, starting at $90 and $134 round-trip. Frontier is currently priced 71% 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 $48. 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 Brussels Airlines (90%), United Airlines (83%) and GOL (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 $78. While the most popular route (Dallas/Fort Worth - Washington, D.C. Dulles Intl) can be booked for $91 on average, our data indicates $876 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 $63). 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
Hanover
Silver Spring
Fredericksburg
Fairfax
Linthicum Heights
Manassas
Laurel
Towson
National Harbor
Bowie
Largo
McLean
Clinton
Upper Marlboro

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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.
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Top 5 airlines flying from Dallas to Dulles Intl

Discover the top 5 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 décembre 2, 2025.
AirlineCheapestAverageFlexibilityOn-time
Spirit AirlinesCheapest$90Average$164FlexibilityNo cancel feeOn-time65%
FrontierCheapest$90Average$165FlexibilityNo cancel feeOn-time62%
DeltaCheapest$134Average$307FlexibilityNo cancel feeOn-timeN/A
American AirlinesCheapest$149Average$295FlexibilityNo cancel feeOn-time71%
United AirlinesCheapest$194Average$342FlexibilityNo cancel feeOn-time69%

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