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Dulles Intl

$95+ 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 8/27. Fares are subject to change and may not be available on all flights or dates of travel.
DFW — IAD
Sep 1 — Sep 81
Tue 9/1
Tue 9/8
1 adult, Economy
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Cheapflights Tip: The best prices from Dallas to Washington, D.C. Dulles Intl are usually found in January or February, booked 81 days in advance, depart on a Friday or Saturday 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 August 2, 2026.

This Kiwi.com deal was found by Cheapflights users on 8/1. 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.
Sat 8/2210:00 am
DFW
-
IAD
1 stop6h 14m
Frontier
Sat 8/297:00 am
IAD
-
DFW
1 stop16h 31m
Frontier
Deal found 8/1$196
This Trip.com deal was found by Cheapflights users on 8/1. 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 Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/44:16 pm
DFW
-
IAD
1 stop5h 36m
Frontier
Sat 9/1212:30 pm
IAD
-
DFW
Nonstop3h 16m
Frontier
Deal found 8/1$197
This Frontier deal was found by Cheapflights users on 7/30. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 8/206:17 am
DFW
-
IAD
1 stop9h 57m
Frontier
Wed 8/266:20 am
IAD
-
DFW
1 stop10h 40m
Frontier
Deal found 7/30$198
This Kiwi.com deal was found by Cheapflights users on 7/30. 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.
Wed 8/2612:35 pm
DFW
-
IAD
2 stops9h 17m
Frontier
Sat 8/297:00 am
IAD
-
DFW
1 stop10h 00m
Frontier
Deal found 7/30$199
This Kiwi.com deal was found by Cheapflights users on 7/28. 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 8/214:16 pm
DFW
-
IAD
1 stop23h 58m
Frontier
Sun 8/237:24 pm
IAD
-
DFW
Nonstop3h 23m
Frontier
Deal found 7/28$201
This Frontier deal was found by Cheapflights users on 7/31. 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 9/72:22 pm
DFW
-
IAD
Nonstop3h 07m
Frontier
Wed 9/94:36 pm
IAD
-
DFW
Nonstop3h 16m
Frontier
Deal found 7/31$202
This Frontier deal was found by Cheapflights users on 7/29. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/177:30 am
DFW
-
IAD
Nonstop3h 03m
Frontier
Mon 9/217:50 am
IAD
-
DFW
1 stop11h 53m
Frontier
Deal found 7/29$203
This Super.com deal was found by Cheapflights users on 7/29. 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 Super.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 8/202:22 pm
DFW
-
IAD
Nonstop3h 07m
Frontier
Fri 8/217:24 pm
IAD
-
DFW
Nonstop3h 23m
Frontier
Deal found 7/29$204
This WAYA deal was found by Cheapflights users on 7/29. 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 WAYA is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 8/2810:00 am
DFW
-
IAD
1 stop6h 14m
Frontier
Sun 8/307:24 pm
IAD
-
DFW
Nonstop3h 23m
Frontier
Deal found 7/29$205
This Kiwi.com deal was found by Cheapflights users on 7/28. 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 9/117:48 pm
DFW
-
IAD
1 stop20h 30m
Frontier
Fri 9/189:04 pm
IAD
-
DFW
1 stop22h 39m
Frontier
Deal found 7/28$206
This Kiwi.com deal was found by Cheapflights users on 7/28. 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 8/278:05 pm
DFW
-
IAD
2 stops14h 15m
Multiple Airlines
Thu 9/36:20 am
IAD
-
DFW
1 stop6h 56m
Multiple Airlines
Deal found 7/28$207
This Delta deal was found by Cheapflights users on 7/31. 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.
Wed 8/266:00 am
DAL
-
IAD
1 stop7h 05m
Delta
Sat 8/296:00 am
IAD
-
DAL
1 stop4h 31m
Delta
Deal found 7/31$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 August 2, 2026.

Round-trip from

$196
(Kiwi.com)

One-way from

$95
(Frontier)

Popular in

December

Cheapest in

January

Average price

$228
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. 3% potential increase in price ($11 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease ($8 potential savings vs. average RT price).
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Average for round-trip flights in August 2026
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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 August 2, 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

Fly to

Route

Depart

Return

Price

Cheapest round-trip

DallasWashington, D.C.

DFW - IAD

DFWIAD

Dallas/Fort Worth

Thu 9/3

6:17 am-5:14 pm

1 stop9h 57m

Washington, D.C. Dulles Intl

Mon 9/7

8:39 pm-4:00 pm

1 stop20h 21m

$218

DallasWashington, D.C.

DFW - IAD

DFWIAD

Dallas/Fort Worth

Wed 8/26

8:10 am-6:33 pm

1 stop9h 23m

Washington, D.C. Dulles Intl

Sat 8/29

6:10 am-10:34 am

1 stop5h 24m

$237

DallasWashington, D.C.

DAL - IAD

DALIAD

Dallas Love Field

Sat 8/29

10:30 am-4:42 pm

1 stop5h 12m

Washington, D.C. Dulles Intl

Sat 9/5

5:47 pm-10:26 pm

1 stop5h 39m

$237

DallasWashington, D.C.

DAL - IAD

DALIAD

Dallas Love Field

Wed 9/2

10:30 am-4:42 pm

1 stop5h 12m

Washington, D.C. Dulles Intl

Sat 9/5

5:47 pm-10:26 pm

1 stop5h 39m

$237
Quickest round-trip

DallasWashington, D.C.

DFW - IAD

DFWIAD

Dallas/Fort Worth

Mon 8/17

7:20 am-11:23 am

Nonstop3h 03m

Washington, D.C. Dulles Intl

Wed 8/19

12:40 pm-3:00 pm

Nonstop3h 20m

$251

DallasWashington, D.C.

DFW - IAD

DFWIAD

Dallas/Fort Worth

Tue 10/27

10:39 am-5:24 pm

1 stop5h 45m

Washington, D.C. Dulles Intl

Sat 10/31

12:35 pm-3:14 pm

Nonstop3h 39m

$261

DallasWashington, D.C.

DFW - IAD

DFWIAD

Dallas/Fort Worth

Sat 9/5

3:00 pm-11:21 pm

1 stop7h 21m

Washington, D.C. Dulles Intl

Thu 9/10

6:10 am-12:31 pm

1 stop7h 21m

$268

DallasWashington, D.C.

DFW - IAD

DFWIAD

Dallas/Fort Worth

Mon 8/24

6:25 pm-12:34 am

1 stop5h 09m

Washington, D.C. Dulles Intl

Thu 8/27

8:28 am-12:53 pm

1 stop5h 25m

$271

DallasWashington, D.C.

DFW - IAD

DFWIAD

Dallas/Fort Worth

Wed 9/16

5:30 am-11:30 am

1 stop5h 00m

Washington, D.C. Dulles Intl

Wed 9/16

6:07 pm-11:57 pm

1 stop6h 50m

$271

DallasWashington, D.C.

DAL - IAD

DALIAD

Dallas Love Field

Mon 9/14

6:47 pm-12:41 am

1 stop4h 54m

Washington, D.C. Dulles Intl

Tue 9/15

6:07 pm-9:57 pm

1 stop4h 50m

$271

Flights are sorted by cheapest round-trip flights first.

Deals found on 8/1

Showing 1-10 of 43 resultsSorted by cheapest first
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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

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

Currently, January is the cheapest month in which you can book a flight from Dallas to Washington, D.C. Dulles Intl Airport (average of $198). Flying from Dallas to Washington, D.C. Dulles Intl Airport in December is currently the most expensive (average of $373). 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 August 2, 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 44% versus a flight in the afternoon.

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 August 2, 2026.

The most flights from A78 to IAD are scheduled on a Friday (16 on average). You will have fewer flight options on Wednesday, which is when the least amount of flights are scheduled (1 on average).

How much does it cost to fly round-trip from Dallas to Washington, D.C. Dulles Intl Airport?

Airfare is typical for this route at the moment.
Dallas to Washington, D.C. Dulles Intl Airport flights typically cost between $165 and $320 in August.
The cheapest round-trip price found within the last 5 days was $196 on Frontier (Aug 22-Aug 29).

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 145 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?

Wednesday 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 Dallas to Washington, D.C. flights?

Over the last year, Frontier have had the lowest number of delays on this route, with just 10% of flights being delayed.

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

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 79 days in advance of your trip. Fares are likely to increase a fortnight or so before your departure date.

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 July 25, 2026.

Travelers seeking maximum savings on their Dallas to Washington, D.C. Dulles Intl Airport flight should consider departing on Thursday at noon 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.

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.

Read more
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.

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 August 2, 2026.
Read reviews from past customers who have flown Delta,United Airlines, andAmerican 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
7.8
Good
8,493 reviews

Boarding

8.1

Crew

8.5

Entertainment

7.8

Comfort

7.8

Overall

7.8

Food

7.2

Reviews

1 / 20
10.0
Excellent

Stacey-Ann,Aug 2023

IAH - ATL

The staff made boarding as easy as possible. Although it was a full flight, everyone was seated in a timely manner and we arrived early.
Delta
7.8
Good
8,493 reviews
Delta
7.8
Good
8,493 reviews

Boarding

8.1

Crew

8.5

Entertainment

7.8

Comfort

7.8

Overall

7.8

Food

7.2

Reviews

1 / 20
10.0
Excellent

Stacey-Ann,Aug 2023

IAH - ATL

The staff made boarding as easy as possible. Although it was a full flight, everyone was seated in a timely manner and we arrived early.
United Airlines
7.4
Good
10,061 reviews
Delta
7.8
Good
8,493 reviews

Boarding

8.1

Crew

8.5

Entertainment

7.8

Comfort

7.8

Overall

7.8

Food

7.2

Reviews

1 / 20
10.0
Excellent

Stacey-Ann,Aug 2023

IAH - ATL

The staff made boarding as easy as possible. Although it was a full flight, everyone was seated in a timely manner and we arrived early.
American Airlines
7.1
Good
11,846 reviews
Delta
7.8
Good
8,493 reviews

Boarding

8.1

Crew

8.5

Entertainment

7.8

Comfort

7.8

Overall

7.8

Food

7.2

Reviews

1 / 20
10.0
Excellent

Stacey-Ann,Aug 2023

IAH - ATL

The staff made boarding as easy as possible. Although it was a full flight, everyone was seated in a timely manner and we arrived early.
Frontier
5.6
Fair
2,741 reviews
Delta
7.8
Good
8,493 reviews

Boarding

8.1

Crew

8.5

Entertainment

7.8

Comfort

7.8

Overall

7.8

Food

7.2

Reviews

1 / 20
10.0
Excellent

Stacey-Ann,Aug 2023

IAH - ATL

The staff made boarding as easy as possible. Although it was a full flight, everyone was seated in a timely manner and we arrived early.

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 $251, Frontier can have you in Washington, D.C. Dulles Intl Airport from Dallas in 3h 03m. 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 $76 on this airline. Additional options worth looking into are Delta and American Airlines, starting at $108 and $165 round-trip. Frontier is currently priced 73% 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 United Airlines and American 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 Mesa Airlines (100%), Iberia (83%) and United Airlines (81%).

  • 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 $81. While the most popular route (Dallas/Fort Worth - Washington, D.C. Dulles Intl) can be booked for $155 on average, our data indicates $943 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, January is the cheapest month in which you can book a flight from Dallas to Washington, D.C. Dulles Intl Airport (average of $198). Flying from Dallas to Washington, D.C. Dulles Intl Airport in December is currently the most expensive (average of $373). 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
Owings Mills
Arlington
Tysons
Springfield
Lanham
Reston
Herndon
Rockville
Chantilly
Hyattsville
Fredericksburg
Falls Church
Hanover
Laurel
Sterling
Clinton
Hunt Valley
Cordova
Woodbridge

Browse thousands of different options on Cheapflights for your next trip

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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 August 2, 2026.
AirlineCheapestAverageFlexibilityOn-time
FrontierCheapest$76Average$218FlexibilityNo cancel feeOn-time62%
DeltaCheapest$108Average$360FlexibilityNo cancel feeOn-timeN/A
American AirlinesCheapest$165Average$340FlexibilityNo cancel feeOn-time71%
United AirlinesCheapest$195Average$358FlexibilityNo cancel feeOn-time69%

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