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Dulles Intl

$91+ Cheap flights from Dallas to Dulles Intl (IAD)

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 5/18. Fares are subject to change and may not be available on all flights or dates of travel.
DFW — IAD
Jan 26 — Feb 21
Sun 1/26
Sun 2/2
1 adult, Economy
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The best prices from Dallas to Washington, D.C. Dulles Intl are usually found in February or August, booked 79 days in advance, depart on a Tuesday or Saturday and return on a Wednesday

Cheap 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 January 21, 2025.

Round-trip from

$159
(CheapOair)

One-way from

$95
(United Airlines)

Popular in

March

Cheapest in

February

Average price

$329
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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High demand for flights, 2% potential price rise
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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 January 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 January 21, 2025.

This CheapOair deal was found by Cheapflights users on 1/21. 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 2/219:59 pmDFW - IAD
1 stop18h 14mFrontier
Fri 2/286:03 pmIAD - DFW
1 stop19h 25mFrontier
Deal found 1/21$159
This United Airlines deal was found by Cheapflights users on 1/21. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 2/185:30 pmDFW - IAD
Nonstop2h 52mUnited Airlines
Sat 2/2212:35 pmIAD - DFW
Nonstop3h 56mUnited Airlines
Deal found 1/21$189
This American Airlines deal was found by Cheapflights users on 1/21. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 2/248:56 pmDFW - IAD
1 stop15h 22mAmerican Airlines
Tue 2/255:13 pmIAD - DFW
Nonstop3h 45mAmerican Airlines
Deal found 1/21$224
This Southwest deal was found by Cheapflights users on 1/21. 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.
Wed 2/262:00 pmDAL - IAD
1 stop8h 05mSouthwest
Mon 3/35:20 pmIAD - DAL
1 stop6h 45mSouthwest
Deal found 1/21$252
This Delta deal was found by Cheapflights users on 1/20. 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 2/1210:32 amDAL - IAD
1 stop5h 44mDelta
Sat 2/1512:30 pmIAD - DAL
1 stop4h 58mDelta
Deal found 1/20$257
This Delta deal was found by Cheapflights users on 1/20. 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 2/125:33 amDFW - IAD
1 stop5h 15mDelta
Sun 2/166:00 amIAD - DFW
1 stop5h 35mDelta
Deal found 1/20$263
This CheapOair deal was found by Cheapflights users on 1/21. 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 5/166:05 amDFW - IAD
1 stop7h 08mMultiple Airlines
Fri 5/2312:45 pmIAD - DFW
1 stop21h 00mMultiple Airlines
Deal found 1/21$284
This Alaska Airlines deal was found by Cheapflights users on 1/20. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 2/207:29 pmDAL - IAD
1 stop33h 03mAlaska Airlines
Wed 2/267:00 amIAD - DAL
1 stop12h 29mAlaska Airlines
Deal found 1/20$477

Find flights from Dallas to Dulles Intl within your budget

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 January 21, 2025.

Fly from

Any airport

Fly to

Any airport

Route

Depart

Return

Price

DallasWashington, D.C.

DFW - IAD

DFWIAD

Dallas/Fort Worth

Wed 2/19

12:30 pm-5:03 pm

1 stop27h 33m

Washington, D.C. Dulles Intl

Thu 2/20

7:17 pm-12:41 am

1 stop6h 24m

$162

DallasWashington, D.C.

DFW - IAD

DFWIAD

Dallas/Fort Worth

Sat 2/15

6:52 pm-10:33 pm

Nonstop2h 41m

Washington, D.C. Dulles Intl

Sat 2/22

5:13 pm-7:58 pm

Nonstop3h 45m

$189

DallasWashington, D.C.

DFW - IAD

DFWIAD

Dallas/Fort Worth

Sat 2/15

5:30 pm-9:22 pm

Nonstop2h 52m

Washington, D.C. Dulles Intl

Sun 2/16

12:35 pm-3:20 pm

Nonstop3h 45m

$219

DallasWashington, D.C.

DAL - IAD

DALIAD

Dallas Love Field

Wed 2/26

2:00 pm-11:05 pm

1 stop8h 05m

Washington, D.C. Dulles Intl

Mon 3/3

5:20 pm-11:05 pm

1 stop6h 45m

$252

DallasWashington, D.C.

DFW - IAD

DFWIAD

Dallas/Fort Worth

Wed 2/12

5:33 am-11:48 am

1 stop5h 15m

Washington, D.C. Dulles Intl

Tue 2/18

6:15 pm-11:57 pm

1 stop6h 42m

$257

DallasWashington, D.C.

DAL - IAD

DALIAD

Dallas Love Field

Wed 2/12

10:32 am-5:16 pm

1 stop5h 44m

Washington, D.C. Dulles Intl

Sat 2/15

12:30 pm-4:28 pm

1 stop4h 58m

$257

DallasWashington, D.C.

DFW - IAD

DFWIAD

Dallas/Fort Worth

Thu 4/17

2:22 pm-2:35 pm

1 stop23h 13m

Washington, D.C. Dulles Intl

Sun 4/20

9:36 pm-4:35 pm

1 stop19h 59m

$295

DallasWashington, D.C.

DAL - IAD

DALIAD

Dallas Love Field

Thu 2/20

7:29 pm-5:32 am

1 stop33h 03m

Washington, D.C. Dulles Intl

Wed 2/26

7:00 am-6:29 pm

1 stop12h 29m

$477

DallasWashington, D.C.

DFW - IAD

DFWIAD

Dallas/Fort Worth

Sun 5/18

5:41 pm-8:24 am

1 stop13h 43m

$91

DallasWashington, D.C.

DFW - IAD

DFWIAD

Dallas/Fort Worth

Wed 2/12

6:54 pm-10:41 pm

Nonstop2h 47m

$95

Flights are sorted by cheapest round-trip flights first.

Deals found on 1/20

Showing 1-10 of 17 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.

Travel insights for flights from Dallas to Dulles Intl

Get recent, data-driven insights about flights from Dallas to Dulles Intl including ideal travel times, pricing trends, and more.

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 January 17, 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 79 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 June is currently the most expensive (average of $389). 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 January 21, 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 74% 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 Thursday at noon when fares are most often at their lowest. Monday afternoons 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 January 21, 2025.

The most flights from A78 to IAD are scheduled on a Tuesday (13 on average). You will have fewer flight options on Sunday, which is when the least amount of flights are scheduled (6 on average).

Rainfall in Dulles Intl by month

Plan your trip to Dulles Intl by taking into account the average rainfall totals by month.

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.

Temperature in Dulles Intl by month

Plan your trip to Dulles Intl by taking into account the average temperature totals by month.

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).

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 January 21, 2025.
Read through reviews of airlines operating flights from Dallas to Washington, D.C., such as Frontier, United Airlines and Southwest. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
Southwest
8.1
Very good
4,662 reviews

Food

7.2

Boarding

8.2

Overall

8.1

Crew

8.7

Entertainment

7.7

Comfort

8.1

Reviews

1 / 10

We BARELY made the connection and when we got onboard we were treated like disobedient children who should have arrived earlier because we had to ask other passengers to move so we could sit with our kids. The flight attendants on the first flight were nice but the second one, they were snippy and fairly rude.

Southwest
8.1
Very good
4,662 reviews
Southwest
8.1
Very good
4,662 reviews

Food

7.2

Boarding

8.2

Overall

8.1

Crew

8.7

Entertainment

7.7

Comfort

8.1

Reviews

1 / 10

We BARELY made the connection and when we got onboard we were treated like disobedient children who should have arrived earlier because we had to ask other passengers to move so we could sit with our kids. The flight attendants on the first flight were nice but the second one, they were snippy and fairly rude.

Alaska Airlines
8.0
Very good
9,706 reviews
Southwest
8.1
Very good
4,662 reviews

Food

7.2

Boarding

8.2

Overall

8.1

Crew

8.7

Entertainment

7.7

Comfort

8.1

Reviews

1 / 10

We BARELY made the connection and when we got onboard we were treated like disobedient children who should have arrived earlier because we had to ask other passengers to move so we could sit with our kids. The flight attendants on the first flight were nice but the second one, they were snippy and fairly rude.

Delta
8.0
Very good
8,521 reviews
Southwest
8.1
Very good
4,662 reviews

Food

7.2

Boarding

8.2

Overall

8.1

Crew

8.7

Entertainment

7.7

Comfort

8.1

Reviews

1 / 10

We BARELY made the connection and when we got onboard we were treated like disobedient children who should have arrived earlier because we had to ask other passengers to move so we could sit with our kids. The flight attendants on the first flight were nice but the second one, they were snippy and fairly rude.

United Airlines
7.4
Good
8,985 reviews
Southwest
8.1
Very good
4,662 reviews

Food

7.2

Boarding

8.2

Overall

8.1

Crew

8.7

Entertainment

7.7

Comfort

8.1

Reviews

1 / 10

We BARELY made the connection and when we got onboard we were treated like disobedient children who should have arrived earlier because we had to ask other passengers to move so we could sit with our kids. The flight attendants on the first flight were nice but the second one, they were snippy and fairly rude.

American Airlines
7.2
Good
10,000 reviews
Southwest
8.1
Very good
4,662 reviews

Food

7.2

Boarding

8.2

Overall

8.1

Crew

8.7

Entertainment

7.7

Comfort

8.1

Reviews

1 / 10

We BARELY made the connection and when we got onboard we were treated like disobedient children who should have arrived earlier because we had to ask other passengers to move so we could sit with our kids. The flight attendants on the first flight were nice but the second one, they were snippy and fairly rude.

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?

    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 $159 on this airline. Additional options worth looking into are American Airlines and United Airlines, starting at $189 and $213 round-trip. Frontier is currently priced 51% 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 United Airlines, with whom users have recently found tickets for as low as $95. However, be on the lookout for offers from Frontier and Southwest, 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 (83%), Alaska Airlines (79%) and United Airlines (77%).

  • 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 $124. While the most popular route (Dallas/Fort Worth - Washington, D.C. Dulles Intl) can be booked for $213 on average our data indicates $1,021 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 June is currently the most expensive (average of $389). 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 Dallas?

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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 January 21, 2025.
AirlineCheapestAverageFlexibilityOn-time
Spirit AirlinesCheapest$51Average$224FlexibilityNo cancel feeOn-time65%
FrontierCheapest$80Average$194FlexibilityNo cancel feeOn-time62%
American AirlinesCheapest$196Average$318FlexibilityNo cancel feeOn-time71%
United AirlinesCheapest$213Average$399FlexibilityNo cancel feeOn-time69%
DeltaCheapest$226Average$341FlexibilityNo cancel feeOn-timeN/A
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