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

For as low as $139, Frontier can have you in Washington, D.C. Dulles Intl Airport from Dallas in 2h 58m. 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 $86 on this airline. Additional options worth looking into are Spirit Airlines and Delta, starting at $107 and $134 round-trip. Frontier is currently priced 68% 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 American Airlines, with whom users have recently found tickets for as low as $70. However, be on the lookout for offers from United Airlines and Frontier, as they are both options that can get you from Dallas to Washington, D.C. Dulles Intl Airport for a low price.

In terms of precipitation, rainfall in Washington, D.C. Dulles Intl Airport ranges from 2.6 - 4.0 inches per month. May is typically the wettest month, when rainfall can reach 4.0 in. February is typically the driest time to visit Washington, D.C. Dulles Intl Airport when rainfall is around 2.6 in.

If weather is an important factor for your trip to Washington, D.C. Dulles Intl Airport, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 80.6 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 35.6 F).

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

Looking at all options, your cheapest flight can be booked for $69. While the most popular route (Dallas/Fort Worth - Washington, D.C. Dulles Intl) can be booked for $99 on average, our data indicates $678 when flying from Dallas to Washington, D.C. Dulles Intl Airport.

What are the most popular airlines that fly from Dallas to Washington, D.C. Dulles Intl Airport?

Consider American Airlines, Delta or Frontier when booking your flight. These represent the most popular airlines when flying from Dallas to Washington, D.C. Dulles Intl Airport.

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

Travelers have found that booking a Thursday departure is the best way to save up to 126% on the cost of booking your flights compared to booking on days of the week where this route is of high demand.

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

August can be a great time to fly to Washington, D.C. Dulles Intl Airport from Dallas with a flight ticket averaging about $232. Cheapflights users have found deals in the month of August for as cheap as $91. The most expensive prices can be found in the month of January.

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.

$70+ Flights from Dallas to Washington, D.C. Dulles Intl Airport

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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

We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.

3. Compare prices and book

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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

Round-trip from	$118 (Cheapflightsfares)
One-way from	$70 (United Airlines)
Popular in	December
Cheapest in	August
Average price	$226

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. 17% potential increase in price ($57 potential increase over avg. RT price).

Search Deals

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

Search Deals

Average for round-trip flights in September 2025

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Find 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 September 15, 2025.

Fri 9/265:15 amDFW - IAD

Nonstop3h 02mFrontier

Fri 10/310:17 amIAD - DFW

Nonstop3h 17mFrontier

Deal found 9/13

$118

Fri 9/265:15 amDFW - IAD

Nonstop3h 02mFrontier

Mon 9/2910:17 amIAD - DFW

Nonstop3h 17mFrontier

Deal found 9/13

$119

Thu 9/255:15 amDFW - IAD

Nonstop3h 02mFrontier

Thu 10/210:17 amIAD - DFW

Nonstop3h 17mFrontier

Deal found 9/13

$121

Fri 10/35:15 amDFW - IAD

Nonstop3h 02mFrontier

Fri 10/109:38 pmIAD - DFW

1 stop25h 42mFrontier

Deal found 9/12

$122

Sat 10/188:00 amDFW - IAD

Nonstop2h 59mFrontier

Sat 10/184:22 pmIAD - DFW

1 stop8h 19mFrontier

Deal found 9/14

$127

Fri 9/268:00 amDFW - IAD

1 stop11h 09mFrontier

Sat 9/271:02 pmIAD - DFW

Nonstop3h 17mFrontier

Deal found 9/14

$129

Sat 9/278:00 amDFW - IAD

Nonstop3h 02mFrontier

Sat 9/271:02 pmIAD - DFW

Nonstop3h 17mFrontier

Deal found 9/13

$130

Fri 10/245:10 amDFW - IAD

Nonstop2h 59mFrontier

Sun 10/263:10 pmIAD - DFW

1 stop7h 03mFrontier

Deal found 9/14

$132

Thu 9/2511:00 amDFW - IAD

1 stop6h 24mFrontier

Sat 9/271:02 pmIAD - DFW

Nonstop3h 17mFrontier

Deal found 9/13

$133

Wed 10/2212:40 pmDAL - IAD

1 stop9h 25mSouthwest

Tue 11/47:40 amIAD - DAL

1 stop9h 25mSouthwest

Deal found 9/14

$217

Sat 10/253:45 pmDAL - IAD

1 stop6h 15mSouthwest

Wed 11/197:40 amIAD - DAL

1 stop9h 25mSouthwest

Deal found 9/14

$227

Sat 11/811:35 amDAL - IAD

1 stop9h 40mSouthwest

Tue 11/117:40 amIAD - DAL

1 stop9h 25mSouthwest

Deal found 9/14

$232

Best flights from Dallas to Dulles Intl
Discover carefully curated flight deals from Dallas to Dulles Intl that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated September 15, 2025.

Fri 10/245:10 amDFW - IAD

Nonstop2h 59mFrontier

Mon 10/2710:33 pmIAD - DFW

1 stop13h 41mFrontier

Deal found 9/14

$132

Wed 10/296:53 pmDFW - IAD

Nonstop2h 58mAmerican Airlines

Sat 11/16:11 amIAD - DFW

Nonstop3h 24mAmerican Airlines

Deal found 9/14

$139

Thu 10/98:11 pmDFW - IAD

1 stop21h 34mMultiple Airlines

Mon 10/136:04 amIAD - DFW

1 stop26h 05mMultiple Airlines

Deal found 9/14

$177

Wed 10/297:40 amDFW - IAD

1 stop7h 45mUnited Airlines

Tue 11/45:39 pmIAD - DFW

Nonstop3h 36mUnited Airlines

Deal found 9/14

$178

Wed 10/2912:40 pmDAL - IAD

1 stop9h 25mSouthwest

Tue 11/47:40 amIAD - DAL

1 stop8h 25mSouthwest

Deal found 9/14

$217

Tue 10/216:00 amDAL - IAD

1 stop4h 31mDelta

Mon 10/277:35 pmIAD - DAL

1 stop5h 20mDelta

Deal found 9/14

$237

Thu 10/169:06 amDFW - IAD

1 stop5h 32mFrontier

Mon 10/204:45 pmIAD - DFW

1 stop6h 54mFrontier

Deal found 9/14

$143

Thu 10/239:06 amDFW - IAD

1 stop5h 32mFrontier

Mon 10/2710:04 amIAD - DFW

Nonstop3h 22mFrontier

Deal found 9/14

$166

Sat 11/87:25 amDFW - IAD

Nonstop2h 49mUnited Airlines

Mon 11/105:33 pmIAD - DFW

1 stop7h 26mUnited Airlines

Deal found 9/14

$188

Thu 10/167:00 amDFW - IAD

Nonstop2h 51mAmerican Airlines

Mon 10/205:54 pmIAD - DFW

Nonstop3h 42mAmerican Airlines

Deal found 9/14

$197

Mon 10/204:18 pmDFW - IAD

1 stop7h 03mUnited Airlines

Tue 10/215:20 pmIAD - DFW

Nonstop3h 16mUnited Airlines

Deal found 9/13

$188

Fri 9/191:53 pmDFW - IAD

1 stop9h 22mFrontier

Sun 9/2110:09 pmIAD - DFW

1 stop17h 39mFrontier

Deal found 9/14

$180

Last-minute flights from Dallas to Dulles Intl
Discover last-minute flight deals from Dallas to Dulles Intl. Data last updated September 15, 2025 and is based on user searches.

Thu 9/255:15 amDFW - IAD

Nonstop3h 02mFrontier

Thu 10/210:17 amIAD - DFW

Nonstop3h 17mFrontier

Deal found 9/13

$121

Fri 9/265:15 amDFW - IAD

Nonstop3h 02mFrontier

Fri 10/310:17 amIAD - DFW

Nonstop3h 17mFrontier

Deal found 9/13

$118

Fri 9/265:15 amDFW - IAD

Nonstop3h 02mFrontier

Mon 9/2910:17 amIAD - DFW

Nonstop3h 17mFrontier

Deal found 9/13

$119

Fri 9/265:15 amDFW - IAD

Nonstop3h 02mFrontier

Sat 10/114:22 pmIAD - DFW

1 stop8h 19mFrontier

Deal found 9/13

$128

Fri 9/268:00 amDFW - IAD

1 stop11h 09mFrontier

Sat 9/271:02 pmIAD - DFW

Nonstop3h 17mFrontier

Deal found 9/14

$129

Sat 9/278:00 amDFW - IAD

Nonstop3h 02mFrontier

Sat 9/271:02 pmIAD - DFW

Nonstop3h 17mFrontier

Deal found 9/13

$130

Thu 10/25:15 amDFW - IAD

Nonstop3h 02mFrontier

Fri 10/310:17 amIAD - DFW

Nonstop3h 17mFrontier

Deal found 9/14

$123

Thu 10/25:15 amDFW - IAD

Nonstop3h 02mFrontier

Mon 10/61:55 pmIAD - DFW

1 stop6h 59mFrontier

Deal found 9/13

$133

Fri 10/35:15 amDFW - IAD

Nonstop3h 02mFrontier

Fri 10/109:38 pmIAD - DFW

1 stop25h 42mFrontier

Deal found 9/12

$122

Sat 10/48:00 amDFW - IAD

Nonstop3h 02mFrontier

Sat 10/184:22 pmIAD - DFW

1 stop8h 19mFrontier

Deal found 9/14

$127

Wed 10/2212:40 pmDAL - IAD

1 stop9h 25mSouthwest

Tue 11/47:40 amIAD - DAL

1 stop9h 25mSouthwest

Deal found 9/14

$217

Fri 10/245:10 amDFW - IAD

Nonstop2h 59mFrontier

Sun 10/263:10 pmIAD - DFW

1 stop7h 03mFrontier

Deal found 9/14

$132

One-way flights from Dallas to Dulles Intl
Search for one-way flight options from Dallas to Dulles Intl. Find affordable one-way fares based on user searches. Data last updated September 15, 2025.

Sat 12/137:25 amDFW - IAD

Nonstop2h 49mUnited Airlines

Deal found 9/14

$70

Mon 9/225:40 amDFW - IAD

1 stop6h 15mFrontier

Deal found 9/13

$72

Wed 10/228:00 amDFW - IAD

1 stop10h 46mFrontier

Deal found 9/14

$76

Fri 11/149:10 pmDFW - IAD

1 stop21h 41mFrontier

Deal found 9/13

$78

Fri 10/35:45 amDFW - IAD

1 stop6h 10mFrontier

Deal found 9/14

$79

Mon 10/135:10 amDFW - IAD

Nonstop2h 59mFrontier

Deal found 9/13

$80

Sun 11/169:09 pmDFW - IAD

1 stop21h 43mFrontier

Deal found 9/13

$82

Thu 10/167:15 amDFW - IAD

Nonstop3h 01mUnited Airlines

Deal found 9/12

$83

Thu 10/98:11 pmDFW - IAD

1 stop21h 34mFrontier

Deal found 9/14

$85

Sat 12/136:29 pmDFW - IAD

1 stop28h 50mMultiple Airlines

Deal found 9/13

$86

Sat 9/2011:00 amDFW - IAD

1 stop6h 24mFrontier

Deal found 9/13

$87

Tue 12/167:15 amDAL - IAD

1 stop8h 50mSouthwest

Deal found 9/13

$109

Cheapflights Fare Finder

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

DallasWashington, D.C.

DFW - IAD

DFWIAD

Dallas/Fort Worth

Fri 10/24

5:10 am-9:09 am

Nonstop2h 59m

Washington, D.C. Dulles Intl

Mon 10/27

10:33 pm-11:14 am

1 stop13h 41m

$132

DallasWashington, D.C.

DFW - IAD

DFWIAD

Dallas/Fort Worth

Wed 10/29

6:53 pm-10:51 pm

Nonstop2h 58m

Washington, D.C. Dulles Intl

Sat 11/1

6:11 am-8:35 am

Nonstop3h 24m

$139

DallasWashington, D.C.

DFW - IAD

DFWIAD

Dallas/Fort Worth

Thu 10/16

9:06 am-3:38 pm

1 stop5h 32m

Washington, D.C. Dulles Intl

Mon 10/20

4:45 pm-10:39 pm

1 stop6h 54m

$143

DallasWashington, D.C.

DFW - IAD

DFWIAD

Dallas/Fort Worth

Thu 10/23

9:06 am-3:38 pm

1 stop5h 32m

Washington, D.C. Dulles Intl

Mon 10/27

10:04 am-12:26 pm

Nonstop3h 22m

$166

DallasWashington, D.C.

DFW - IAD

DFWIAD

Dallas/Fort Worth

Thu 10/9

8:11 pm-6:45 pm

1 stop21h 34m

Washington, D.C. Dulles Intl

Mon 10/13

6:04 am-7:09 am

1 stop26h 05m

$177

DallasWashington, D.C.

DFW - IAD

DFWIAD

Dallas/Fort Worth

Wed 10/29

7:40 am-4:25 pm

1 stop7h 45m

Washington, D.C. Dulles Intl

Tue 11/4

5:39 pm-8:15 pm

Nonstop3h 36m

$178

DallasWashington, D.C.

DFW - IAD

DFWIAD

Dallas/Fort Worth

Fri 9/19

1:53 pm-12:15 am

1 stop9h 22m

Washington, D.C. Dulles Intl

Sun 9/21

10:09 pm-2:48 pm

1 stop17h 39m

$180

DallasWashington, D.C.

DFW - IAD

DFWIAD

Dallas/Fort Worth

Thu 9/18

7:24 pm-2:25 pm

1 stop18h 01m

Washington, D.C. Dulles Intl

Sun 9/21

10:09 pm-2:48 pm

1 stop17h 39m

$180

DallasWashington, D.C.

DFW - IAD

DFWIAD

Dallas/Fort Worth

Sat 11/8

7:25 am-11:14 am

Nonstop2h 49m

Washington, D.C. Dulles Intl

Mon 11/10

5:33 pm-11:59 pm

1 stop7h 26m

$188

DallasWashington, D.C.

DFW - IAD

DFWIAD

Dallas/Fort Worth

Mon 10/20

4:18 pm-12:21 am

1 stop7h 03m

Washington, D.C. Dulles Intl

Tue 10/21

5:20 pm-7:36 pm

Nonstop3h 16m

$188

Flights are sorted by cheapest round-trip flights first.

Deals found on 9/14

Showing 1-10 of 47 results

...

The best insider tips for Dallas to Washington, D.C. Dulles Intl Airport flights

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.

IAD

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

Our travel experts

Chris Dong

Expert on DFW

Ramsey Qubein

Expert on IAD

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?

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, August is the cheapest month in which you can book a flight from Dallas to Washington, D.C. Dulles Intl Airport (average of $292). Flying from Dallas to Washington, D.C. Dulles Intl Airport in April is currently the most expensive (average of $337). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

What is the cheapest time of day to fly from DFW to IAD?

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 60% versus a flight at noon.

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

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. Friday at noon 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

The most flights from A78 to IAD are scheduled on a Friday (17 on average). You will have fewer flight options on Thursday, which is when the least amount of flights are scheduled (9 on average).

Reviews of airlines servicing Dulles Intl

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

8.0

Very good

7,956 reviews

Reviews

1 / 20

10.0

Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!

Delta

8.0

Very good

7,956 reviews

Delta

8.0

Very good

7,956 reviews

Reviews

1 / 20

10.0

Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!

United Airlines

7.4

Good

8,931 reviews

Delta

8.0

Very good

7,956 reviews

Reviews

1 / 20

10.0

Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!

American Airlines

7.2

Good

10,000 reviews

Delta

8.0

Very good

7,956 reviews

Reviews

1 / 20

10.0

Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!

Spirit Airlines

6.3

Okay

8,016 reviews

Delta

8.0

Very good

7,956 reviews

Reviews

1 / 20

10.0

Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!

Frontier

5.8

Fair

3,173 reviews

Delta

8.0

Very good

7,956 reviews

Reviews

1 / 20

10.0

Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!

Related info for your journey

How long is the flight from Dallas to Washington, D.C. Dulles Intl Airport?
For as low as $139, Frontier can have you in Washington, D.C. Dulles Intl Airport from Dallas in 2h 58m. 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 $86 on this airline. Additional options worth looking into are Spirit Airlines and Delta, starting at $107 and $134 round-trip. Frontier is currently priced 68% 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 American Airlines, with whom users have recently found tickets for as low as $70. However, be on the lookout for offers from United Airlines and Frontier, 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 Frontier (100%), GOL (100%) and Iberia (85%).
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 $69. While the most popular route (Dallas/Fort Worth - Washington, D.C. Dulles Intl) can be booked for $99 on average, our data indicates $678 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, August is the cheapest month in which you can book a flight from Dallas to Washington, D.C. Dulles Intl Airport (average of $292). Flying from Dallas to Washington, D.C. Dulles Intl Airport in April is currently the most expensive (average of $337). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

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Top 5 airlines flying from Dallas to Dulles Intl

Airline	Cheapest	Average	Flexibility	On-time
Frontier	Cheapest$86	Average$154	FlexibilityNo cancel fee	On-time62%
Spirit Airlines	Cheapest$107	Average$224	FlexibilityNo cancel fee	On-time65%
Delta	Cheapest$134	Average$389	FlexibilityNo cancel fee	On-timeN/A
American Airlines	Cheapest$150	Average$295	FlexibilityNo cancel fee	On-time71%
United Airlines	Cheapest$195	Average$367	FlexibilityNo cancel fee	On-time69%

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$70+ 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 12/13. Fares are subject to change and may not be available on all flights or dates of travel.

Find cheap flights from Dallas to Dulles Intl with Cheapflights

1. Tell us where you want to go

2. Select your favorite providers

3. Compare prices and book

Cheapflights Tip: The best prices from 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

Round-trip from

One-way from

Popular in

Cheapest in

Average price

Find flight deals from Dallas to Dulles Intl

Cheapest flights from Dallas to Dulles IntlExplore 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 September 15, 2025.

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 September 15, 2025.

Cheapflights Fare Finder

Use the filters below to find and compare flights from Dallas to Washington, D.C. Dulles Intl Airport that are best for you.

The best insider tips for Dallas to Washington, D.C. Dulles Intl Airport flights

Cheapflights partnered with top experts to bring you the best recommendations for your Dallas to Washington, D.C. Dulles Intl Airport trip

Airports

DFW

IAD

Our travel experts

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.

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 September 12, 2025.

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

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 September 15, 2025.

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.

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

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Related info for your journey

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

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

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

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

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Alternative routes for Dallas to Dulles Intl

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Top 5 airlines flying from Dallas to Dulles Intl

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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 September 15, 2025.