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 $116 on this airline. Additional options worth looking into are American Airlines and United Airlines, starting at $139 and $148 round-trip. Frontier is currently priced 60% 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 $68. 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.

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 $53. While the most popular route (Dallas/Fort Worth - Washington, D.C. Dulles Intl) can be booked for $98 on average our data indicates $1,643 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 Wednesday departure is the best way to save up to 85% 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?

February can be a great time to fly to Washington, D.C. Dulles Intl Airport from Dallas with a flight ticket averaging about $242. Cheapflights users have found deals in the month of February for as cheap as $88. The most expensive prices can be found in the month of December.

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.

$68+ Flights from Dallas to Washington, D.C. Dulles Intl Airport

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Cheapflights Tip: The best prices from Dallas to Washington, D.C. Dulles Intl are usually found in August or February, booked 77 days in advance, depart on a Thursday or Friday and return on a Friday

Cheap flight deals from Dallas to Dulles Intl

Round-trip from	$116 (CheapOair)
One-way from	$68 (Priceline)
Popular in	December
Cheapest in	August
Average price	$288

From Dallas to Washington, D.C. Dulles Intl

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One-way flight from Dallas to Washington, D.C. Dulles Intl

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Highest demand for flights based on searches. 11% potential increase in price ($37 potential increase over avg. RT price).

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Cheapest flight prices on average. 1% potential price decrease ($5 potential savings vs. average RT price).

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Average for round-trip flights in July 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 July 3, 2025.

Fri 7/256:05 amDFW - IAD

Nonstop3h 02mFrontier

Mon 7/2811:04 amIAD - DFW

Nonstop3h 17mFrontier

Deal found 7/1

$117

Sat 8/97:00 amDFW - IAD

Nonstop3h 01mAmerican Airlines

Tue 8/126:27 amIAD - DFW

Nonstop3h 10mAmerican Airlines

Deal found 7/3

$139

Thu 8/77:30 amDFW - IAD

Nonstop3h 02mUnited Airlines

Tue 8/1212:40 pmIAD - DFW

Nonstop3h 16mUnited Airlines

Deal found 7/1

$148

Tue 8/512:25 pmDAL - IAD

1 stop8h 40mSouthwest

Tue 8/122:25 pmIAD - DAL

1 stop8h 25mSouthwest

Deal found 7/1

$177

Sat 9/135:45 amDAL - IAD

1 stop4h 25mDelta

Mon 9/227:22 pmIAD - DAL

1 stop5h 27mDelta

Deal found 7/1

$237

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 July 3, 2025.

Fri 8/86:05 amDFW - IAD

Nonstop3h 02mFrontier

Sun 8/1011:02 amIAD - DFW

Nonstop3h 17mFrontier

Deal found 7/3

$116

Sat 8/97:00 amDFW - IAD

Nonstop3h 01mAmerican Airlines

Tue 8/126:27 amIAD - DFW

Nonstop3h 10mAmerican Airlines

Deal found 7/3

$139

Thu 8/77:30 amDFW - IAD

Nonstop3h 02mUnited Airlines

Tue 8/1212:40 pmIAD - DFW

Nonstop3h 16mUnited Airlines

Deal found 7/1

$148

Tue 8/512:25 pmDAL - IAD

1 stop8h 40mSouthwest

Tue 8/122:25 pmIAD - DAL

1 stop8h 25mSouthwest

Deal found 7/1

$177

Sat 9/135:45 amDAL - IAD

1 stop4h 25mDelta

Mon 9/227:22 pmIAD - DAL

1 stop5h 27mDelta

Deal found 7/1

$237

Last-minute flights from Dallas to Dulles Intl
Discover last-minute flight deals from Dallas to Dulles Intl. Data last updated July 3, 2025 and is based on user searches.

Thu 7/106:10 amDAL - IAD

1 stop6h 10mSouthwest

Wed 7/162:05 pmIAD - DAL

1 stop9h 00mSouthwest

Deal found 7/2

$353

Fri 7/115:45 amDAL - IAD

1 stop5h 05mDelta

Tue 7/153:37 pmIAD - DAL

1 stop6h 24mDelta

Deal found 7/1

$318

Sun 7/136:05 amDFW - IAD

Nonstop3h 02mFrontier

Thu 7/2411:04 amIAD - DFW

Nonstop3h 17mFrontier

Deal found 6/30

$134

Fri 7/256:05 amDFW - IAD

Nonstop3h 02mFrontier

Mon 7/2811:04 amIAD - DFW

Nonstop3h 17mFrontier

Deal found 7/1

$117

Tue 8/512:25 pmDAL - IAD

1 stop8h 40mSouthwest

Tue 8/122:25 pmIAD - DAL

1 stop8h 25mSouthwest

Deal found 7/1

$177

Thu 8/77:30 amDFW - IAD

Nonstop3h 02mUnited Airlines

Tue 8/1212:40 pmIAD - DFW

Nonstop3h 16mUnited Airlines

Deal found 7/1

$148

Sat 8/97:00 amDFW - IAD

Nonstop3h 01mAmerican Airlines

Tue 8/126:27 amIAD - DFW

Nonstop3h 10mAmerican Airlines

Deal found 7/3

$139

Tue 8/128:30 amDAL - IAD

1 stop5h 01mDelta

Wed 8/2010:07 amIAD - DAL

1 stop6h 00mDelta

Deal found 6/30

$237

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 July 3, 2025.

Sun 8/105:50 pmDFW - IAD

1 stop5h 29mFrontier

Deal found 7/2

$68

Tue 9/95:20 pmDFW - IAD

Nonstop3h 02mUnited Airlines

Deal found 7/1

$70

Tue 9/236:49 pmDFW - IAD

Nonstop2h 56mAmerican Airlines

Deal found 7/2

$72

Wed 10/112:25 pmDAL - IAD

1 stop8h 40mSouthwest

Deal found 7/2

$89

Thu 7/316:25 amDFW - IAD

1 stop6h 24mMultiple Airlines

Deal found 7/1

$107

Thu 11/279:40 amDFW - IAD

1 stop6h 01mDelta

Deal found 7/3

$119

Tue 7/158:00 amDAL - IAD

1 stop7h 25mDelta

Deal found 7/1

$120

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 7/25

6:05 am-10:07 am

Nonstop3h 02m

Washington, D.C. Dulles Intl

Mon 7/28

11:04 am-1:21 pm

Nonstop3h 17m

$117

DallasWashington, D.C.

DFW - IAD

DFWIAD

Dallas/Fort Worth

Sat 8/9

7:00 am-11:01 am

Nonstop3h 01m

Washington, D.C. Dulles Intl

Tue 8/12

6:27 am-8:37 am

Nonstop3h 10m

$139

DallasWashington, D.C.

DFW - IAD

DFWIAD

Dallas/Fort Worth

Thu 8/7

7:30 am-11:32 am

Nonstop3h 02m

Washington, D.C. Dulles Intl

Tue 8/12

12:40 pm-2:56 pm

Nonstop3h 16m

$148

DallasWashington, D.C.

DAL - IAD

DALIAD

Dallas Love Field

Tue 8/5

12:25 pm-10:05 pm

1 stop8h 40m

Washington, D.C. Dulles Intl

Tue 8/12

2:25 pm-9:50 pm

1 stop8h 25m

$177

DallasWashington, D.C.

DAL - IAD

DALIAD

Dallas Love Field

Sat 9/13

5:45 am-11:10 am

1 stop4h 25m

Washington, D.C. Dulles Intl

Mon 9/22

7:22 pm-11:49 pm

1 stop5h 27m

$237

DallasWashington, D.C.

DFW - IAD

DFWIAD

Dallas/Fort Worth

Sun 8/10

5:50 pm-12:19 am

1 stop5h 29m

$68

DallasWashington, D.C.

DFW - IAD

DFWIAD

Dallas/Fort Worth

Tue 9/9

5:20 pm-9:22 pm

Nonstop3h 02m

$70

DallasWashington, D.C.

DFW - IAD

DFWIAD

Dallas/Fort Worth

Tue 9/23

7:00 am-10:57 am

Nonstop2h 57m

$72

DallasWashington, D.C.

DAL - IAD

DALIAD

Dallas Love Field

Wed 10/1

12:25 pm-10:05 pm

1 stop8h 40m

$89

DallasWashington, D.C.

DFW - IAD

DFWIAD

Dallas/Fort Worth

Tue 9/23

7:15 am-2:33 pm

1 stop6h 18m

$119

Flights are sorted by cheapest round-trip flights first.

Deals found on 7/2

Showing 1-10 of 12 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 77 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 $309). Flying from Dallas to Washington, D.C. Dulles Intl Airport in July is currently the most expensive (average of $345). 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 73% 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 Tuesday 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 Thursday (13 on average). You will have fewer flight options on Monday, which is when the least amount of flights are scheduled (5 on average).

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

Reviews of airlines servicing Dulles Intl

Read reviews from past customers who have flown Southwest, Delta, and United 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.

Southwest

8.0

Very good

4,270 reviews

Reviews

1 / 20

8.0

Excellent

John,May 2025

PVD - BNA

It’s southwest so no frills but clean, efficient and got me to my location.

Southwest

8.0

Very good

4,270 reviews

Southwest

8.0

Very good

4,270 reviews

Reviews

1 / 20

8.0

Excellent

John,May 2025

PVD - BNA

It’s southwest so no frills but clean, efficient and got me to my location.

Delta

8.0

Very good

7,970 reviews

Southwest

8.0

Very good

4,270 reviews

Reviews

1 / 20

8.0

Excellent

John,May 2025

PVD - BNA

It’s southwest so no frills but clean, efficient and got me to my location.

United Airlines

7.4

Good

8,845 reviews

Southwest

8.0

Very good

4,270 reviews

Reviews

1 / 20

8.0

Excellent

John,May 2025

PVD - BNA

It’s southwest so no frills but clean, efficient and got me to my location.

American Airlines

7.2

Good

10,000 reviews

Southwest

8.0

Very good

4,270 reviews

Reviews

1 / 20

8.0

Excellent

John,May 2025

PVD - BNA

It’s southwest so no frills but clean, efficient and got me to my location.

Frontier

5.9

Fair

3,284 reviews

Southwest

8.0

Very good

4,270 reviews

Reviews

1 / 20

8.0

Excellent

John,May 2025

PVD - BNA

It’s southwest so no frills but clean, efficient and got me to my location.

Related info for your journey

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 $116 on this airline. Additional options worth looking into are American Airlines and United Airlines, starting at $139 and $148 round-trip. Frontier is currently priced 60% 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 $68. 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 (83%), Iberia (82%) and Frontier (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 $53. While the most popular route (Dallas/Fort Worth - Washington, D.C. Dulles Intl) can be booked for $98 on average our data indicates $1,643 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 $309). Flying from Dallas to Washington, D.C. Dulles Intl Airport in July is currently the most expensive (average of $345). 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

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Silver Spring

Fredericksburg

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National Harbor

Manassas

Dundalk

Bowie

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Top 5 airlines flying from Dallas to Dulles Intl

Airline	Cheapest	Average	Flexibility	On-time
Frontier	Cheapest$72	Average$145	FlexibilityNo cancel fee	On-time62%
Spirit Airlines	Cheapest$107	Average$224	FlexibilityNo cancel fee	On-time65%
Delta	Cheapest$159	Average$347	FlexibilityNo cancel fee	On-timeN/A
American Airlines	Cheapest$170	Average$306	FlexibilityNo cancel fee	On-time71%
United Airlines	Cheapest$198	Average$371	FlexibilityNo cancel fee	On-time69%

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$68+ 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 8/10. 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

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Cheapflights Tip: The best prices from Dallas to Washington, D.C. Dulles Intl are usually found in August or February, booked 77 days in advance, depart on a Thursday or Friday and return on a Friday

Cheap flight deals from Dallas to Dulles Intl

Round-trip from

One-way from

Popular in

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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 July 3, 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 July 3, 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 June 27, 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 July 3, 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

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 July 3, 2025.

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

Reviews of airlines servicing Dulles Intl

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.

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

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

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?

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

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

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

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

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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 July 3, 2025.