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Dulles Intl

$139+ Cheap flights from Washington 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 3/11. Fares are subject to change and may not be available on all flights or dates of travel.
SEA — IAD
Dec 27 — Jan 31
Fri 12/27
Fri 1/3
1 adult, Economy
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Cheap flight deals from Washington to Dulles Intl

Discover tips and strategies to find the most affordable flight options for your journey from Washington (USWA) 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 December 22, 2024.

Round-trip from

$276
(Jettzy)

One-way from

$139
(United Airlines)
From Washington to Washington, D.C. Dulles Intl
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One-way flight from Washington to Washington, D.C. Dulles Intl
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Find flight deals from Washington to Dulles Intl

Cheapest flights from Washington to Dulles Intl
Explore the most affordable flight options available from Washington to Dulles Intl. Find the lowest fares from popular airlines and budget airlines, with prices last updated on December 22, 2024.

This Delta deal was found by Cheapflights users on 12/20. 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.
Sun 12/2911:00 pmSEA - IAD
1 stop9h 50mDelta
Fri 1/37:30 amIAD - SEA
Nonstop6h 11mDelta
Deal found 12/20$607
This Mytrip deal was found by Cheapflights users on 12/20. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 12/296:50 pmPDX - IAD
2 stops22h 27mMultiple Airlines
Sun 1/59:35 pmIAD - PDX
3 stops28h 59mMultiple Airlines
Deal found 12/20$615
This United Airlines deal was found by Cheapflights users on 12/21. 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.
Mon 12/2312:37 pmSEA - IAD
Nonstop5h 03mUnited Airlines
Mon 1/612:35 pmIAD - SEA
1 stop9h 30mUnited Airlines
Deal found 12/21$658
This Alaska Airlines deal was found by Cheapflights users on 12/21. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/247:00 amSEA - IAD
1 stop11h 30mAlaska Airlines
Mon 1/66:57 pmIAD - SEA
Nonstop6h 03mAlaska Airlines
Deal found 12/21$662
This American Airlines deal was found by Cheapflights users on 12/21. 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 12/2311:50 amSEA - IAD
1 stop7h 49mAmerican Airlines
Fri 1/106:10 amIAD - SEA
1 stop9h 56mAmerican Airlines
Deal found 12/21$672
This Southwest deal was found by Cheapflights users on 12/21. 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.
Mon 12/231:10 pmSEA - IAD
2 stops8h 50mSouthwest
Fri 1/103:55 pmIAD - SEA
1 stop9h 35mSouthwest
Deal found 12/21$677
This Alaska Airlines deal was found by Cheapflights users on 12/21. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 12/217:40 amPDX - IAD
1 stop10h 50mAlaska Airlines
Sat 1/116:57 pmIAD - PDX
1 stop7h 46mAlaska Airlines
Deal found 12/21$691
This United Airlines deal was found by Cheapflights users on 12/19. 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 12/311:34 pmPDX - IAD
2 stops14h 01mUnited Airlines
Sun 1/55:46 pmIAD - PDX
Nonstop6h 03mUnited Airlines
Deal found 12/19$710
This Delta deal was found by Cheapflights users on 12/20. 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.
Sun 12/291:50 pmPDX - IAD
1 stop6h 29mDelta
Fri 1/37:05 amIAD - PDX
1 stop8h 40mDelta
Deal found 12/20$733
This Southwest deal was found by Cheapflights users on 12/21. 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.
Sat 12/288:45 amPDX - IAD
2 stops13h 20mSouthwest
Sat 1/45:05 amIAD - PDX
1 stop7h 35mSouthwest
Deal found 12/21$738
This American Airlines deal was found by Cheapflights users on 12/20. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 12/2012:03 pmPDX - IAD
1 stop7h 36mAmerican Airlines
Fri 1/249:11 amIAD - PDX
2 stops14h 34mAmerican Airlines
Deal found 12/20$841
This Delta deal was found by Cheapflights users on 12/20. 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.
Tue 12/2412:35 pmGEG - IAD
1 stop9h 03mDelta
Tue 12/315:27 pmIAD - GEG
2 stops8h 44mDelta
Deal found 12/20$857

Find flights from Washington to Dulles Intl within your budget

Customize your flight search to find flights from Washington 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 December 22, 2024.

Fly from

Any airport

Fly to

Any airport

Route

Depart

Return

Price

SeattleWashington, D.C.

SEA - IAD

SEAIAD

Seattle/Tacoma Intl

Tue 2/4

9:54 am-5:57 pm

Nonstop5h 03m

Washington, D.C. Dulles Intl

Tue 2/11

6:57 pm-10:00 pm

Nonstop6h 03m

$276

SeattleWashington, D.C.

SEA - IAD

SEAIAD

Seattle/Tacoma Intl

Sat 1/25

7:10 am-3:10 pm

Nonstop5h 00m

Washington, D.C. Dulles Intl

Sat 2/1

4:05 pm-7:06 pm

Nonstop6h 01m

$277

SpokaneWashington, D.C.

GEG - IAD

GEGIAD

Spokane

Thu 1/16

1:50 pm-11:30 pm

1 stop6h 40m

Washington, D.C. Dulles Intl

Wed 1/22

6:32 am-3:33 pm

1 stop12h 01m

$292

SeattleWashington, D.C.

SEA - IAD

SEAIAD

Seattle/Tacoma Intl

Thu 1/9

7:00 am-8:40 pm

1 stop10h 40m

Washington, D.C. Dulles Intl

Mon 1/13

5:30 pm-8:31 pm

Nonstop6h 01m

$292

SeattleWashington, D.C.

SEA - IAD

SEAIAD

Seattle/Tacoma Intl

Sat 1/25

9:45 am-10:41 pm

1 stop9h 56m

Washington, D.C. Dulles Intl

Sat 2/1

6:10 am-2:56 pm

1 stop11h 46m

$294

SpokaneWashington, D.C.

GEG - IAD

GEGIAD

Spokane

Thu 1/23

1:15 pm-11:36 pm

1 stop7h 21m

Washington, D.C. Dulles Intl

Wed 1/29

5:16 pm-12:03 am

2 stops9h 47m

$297

PortlandWashington, D.C.

PDX - IAD

PDXIAD

Portland

Tue 2/4

5:26 pm-4:23 pm

2 stops19h 57m

Washington, D.C. Dulles Intl

Tue 2/11

5:25 pm-10:45 am

1 stop20h 20m

$304

PortlandWashington, D.C.

PDX - IAD

PDXIAD

Portland

Tue 4/22

11:30 pm-7:29 am

Nonstop4h 59m

Washington, D.C. Dulles Intl

Wed 4/30

6:30 am-12:39 pm

1 stop9h 09m

$307

PortlandWashington, D.C.

PDX - IAD

PDXIAD

Portland

Sat 1/11

5:31 am-4:14 pm

1 stop7h 43m

Washington, D.C. Dulles Intl

Sat 1/18

6:10 am-1:16 pm

1 stop10h 06m

$316

PortlandWashington, D.C.

PDX - IAD

PDXIAD

Portland

Tue 1/7

12:45 pm-12:22 am

1 stop8h 37m

Washington, D.C. Dulles Intl

Sat 1/11

4:05 pm-11:58 pm

1 stop10h 53m

$326

Flights are sorted by cheapest round-trip flights first.

Deals found on 12/20

Showing 1-10 of 51 results
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Best time to book a flight from Washington to Dulles Intl

Have a flexible travel schedule? Discover the best time to fly to Dulles Intl from Washington 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 Washington to Dulles Intl

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

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

Currently, August is the cheapest month in which you can book a flight from State of Washington to Washington, D.C. Dulles Intl Airport (average of $309). Flying from State of Washington 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 WA to IAD?

Find hourly flight availability from Washington 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 December 22, 2024.

When flying from State of Washington to Washington, D.C. Dulles Intl Airport, the time of day you decide to fly out makes little to no difference towards the overall price you’ll pay on tickets.

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

Explore weekly flight availability from Washington 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 December 22, 2024.

The most flights from USWA to IAD are scheduled on a Saturday (19 on average). You will have fewer flight options on Sunday, which is when the least amount of flights are scheduled (8 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 December 22, 2024.
Get a feel of what it's like to fly with United Airlines, Southwest and Alaska Airlines from Washington to Washington, D.C. by reading reviews from past customers. 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
8.1
Very good
4,804 reviews

Comfort

8.1

Boarding

8.2

Entertainment

7.7

Overall

8.1

Crew

8.7

Food

7.2

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
4,804 reviews
Southwest
8.1
Very good
4,804 reviews

Comfort

8.1

Boarding

8.2

Entertainment

7.7

Overall

8.1

Crew

8.7

Food

7.2

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
9,537 reviews
Southwest
8.1
Very good
4,804 reviews

Comfort

8.1

Boarding

8.2

Entertainment

7.7

Overall

8.1

Crew

8.7

Food

7.2

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
8,597 reviews
Southwest
8.1
Very good
4,804 reviews

Comfort

8.1

Boarding

8.2

Entertainment

7.7

Overall

8.1

Crew

8.7

Food

7.2

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
9,028 reviews
Southwest
8.1
Very good
4,804 reviews

Comfort

8.1

Boarding

8.2

Entertainment

7.7

Overall

8.1

Crew

8.7

Food

7.2

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.

Turkish Airlines
7.3
Good
3,900 reviews
Southwest
8.1
Very good
4,804 reviews

Comfort

8.1

Boarding

8.2

Entertainment

7.7

Overall

8.1

Crew

8.7

Food

7.2

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 Washington 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 to fly from State of Washington to Washington, D.C. Dulles Intl Airport one-way?

    One-way options have recently been found by users for as low as $139 on United Airlines. Other airlines that offer cheap prices include Delta from $144 and Frontier from $152 one-way.

  • What are the most popular routes from State of Washington to Washington, D.C. Dulles Intl Airport?

    Most travelers choose Seattle/Tacoma Intl - Washington, D.C. Dulles Intl, Portland - Washington, D.C. Dulles Intl or Spokane - Washington, D.C. Dulles Intl when deciding on the best route from State of Washington to Washington, D.C. Dulles Intl Airport.

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

    Before booking your flight to Washington, D.C. Dulles Intl Airport from State of Washington, check out the most reliable airlines to get you to your destination on time: Copa Airlines (98%), United Airlines (94%), Ethiopian Air( 93%).

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

    While on average a flight from State of Washington to Washington, D.C. Dulles Intl Airport is generally $839, our data shows the cheapest flight currently is $141. When looking at the most popular route, (Seattle/Tacoma Intl - Washington, D.C. Dulles Intl), you can expect to pay $265 for that flight.

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

    Yes. In addition to deals on Washington to Dulles Intl flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Washington to Dulles Intl?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Washington to Dulles Intl.

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

    Yes. Cheapflights offers flight deals from Washington 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 State of Washington to Washington, D.C. Dulles Intl Airport?

    Currently, August is the cheapest month in which you can book a flight from State of Washington to Washington, D.C. Dulles Intl Airport (average of $309). Flying from State of Washington 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.

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Alternative routes for Washington to Dulles Intl

See prices for flight routes from nearby airports that may be better suited for you.
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LaGuardia to Reagan-National flights
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Miami to Baltimore flights

Top 5 airlines flying from Washington to Dulles Intl

Discover the top 5 airlines that operate flights from Washington 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 December 22, 2024.
AirlineCheapestAverageFlexibilityOn-time
Sun Country AirCheapest$169Average$534FlexibilityNo cancel feeOn-time83%
Alaska AirlinesCheapest$174Average$546FlexibilityNo cancel feeOn-time75%
DeltaCheapest$195Average$438FlexibilityNo cancel feeOn-timeN/A
United AirlinesCheapest$237Average$524FlexibilityNo cancel feeOn-time69%
American AirlinesCheapest$337Average$531FlexibilityNo cancel feeOn-time71%
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