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$111+ Cheap flights from Dulles Intl (IAD) to Washington

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 12/10. Fares are subject to change and may not be available on all flights or dates of travel.
IAD — SEA
Oct 11 — Oct 181
Sat 10/11
Sat 10/18
1 adult, Economy
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Cheap flight deals from Dulles Intl to Washington

Keep the following information in mind while searching for Dulles Intl to Washington flight deals. Data was last updated September 11, 2025.

Round-trip from

$221
(Delta)

One-way from

$111
(United Airlines)

Popular in

December

Cheapest in

September

Average price

$338

Good round-trip deal

$334 or less

Good one-way deal

$206 or less
From Washington, D.C. Dulles Intl to Washington
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One-way flight from Washington, D.C. Dulles Intl to Washington
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Highest demand for flights based on searches. 4% potential increase in price ($18 potential increase over avg. RT price).
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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 September 2025
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Price to beat on a round-trip flight from Washington, D.C. Dulles Intl to Washington.
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Price to beat on a one-way flight from Washington, D.C. Dulles Intl to Washington.
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Find flight deals from Dulles Intl to Washington

Cheapest flights from Dulles Intl to Washington
Explore the most affordable flight options available from Dulles Intl to Washington. Find the lowest fares from popular airlines and budget airlines, with prices last updated on September 11, 2025.

This Delta deal was found by Cheapflights users on 9/11. 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.
Sat 10/46:23 amIAD - GEG
1 stop7h 59mDelta
Mon 10/2712:51 pmGEG - IAD
1 stop8h 21mDelta
Deal found 9/11$221
This Delta deal was found by Cheapflights users on 9/11. 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.
Sat 10/46:23 amIAD - GEG
1 stop7h 59mDelta
Sat 10/259:45 amGEG - IAD
2 stops10h 15mDelta
Deal found 9/11$226
This American Airlines deal was found by Cheapflights users on 9/9. 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 11/242:16 pmIAD - SEA
1 stop9h 23mAmerican Airlines
Wed 12/35:18 amSEA - IAD
1 stop7h 56mAmerican Airlines
Deal found 9/9$236
This Southwest deal was found by Cheapflights users on 9/10. 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 11/35:45 pmIAD - SEA
1 stop8h 10mSouthwest
Tue 11/115:40 amSEA - IAD
1 stop13h 30mSouthwest
Deal found 9/10$237
This Southwest deal was found by Cheapflights users on 9/9. 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 10/226:40 pmIAD - SEA
1 stop8h 05mSouthwest
Tue 10/285:50 amSEA - IAD
1 stop7h 10mSouthwest
Deal found 9/9$240
This CheapOair deal was found by Cheapflights users on 9/10. 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.
Thu 10/21:55 pmIAD - SEA
2 stops13h 35mFrontier
Sun 10/56:12 amSEA - IAD
2 stops38h 04mFrontier
Deal found 9/10$241
This Frontier deal was found by Cheapflights users on 9/11. 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 9/291:55 pmIAD - SEA
2 stops13h 35mFrontier
Wed 10/17:00 amSEA - IAD
2 stops23h 17mFrontier
Deal found 9/11$242
This Southwest deal was found by Cheapflights users on 9/10. 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 11/15:00 pmIAD - SEA
1 stop8h 30mSouthwest
Tue 11/45:40 amSEA - IAD
1 stop7h 05mSouthwest
Deal found 9/10$244
This Southwest deal was found by Cheapflights users on 9/11. 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.
Thu 10/237:25 amIAD - SEA
1 stop13h 35mSouthwest
Tue 10/285:50 amSEA - IAD
1 stop7h 10mSouthwest
Deal found 9/11$246
This Delta deal was found by Cheapflights users on 9/11. 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.
Sat 10/47:35 amIAD - GEG
1 stop10h 14mDelta
Fri 10/2411:15 pmGEG - IAD
1 stop7h 56mDelta
Deal found 9/11$249
This Vliegwinkel deal was found by Cheapflights users on 9/9. 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 Vliegwinkel is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/27:00 amIAD - SEA
Nonstop5h 40mHawaiian Airlines
Fri 10/104:20 pmSEA - IAD
Nonstop5h 03mHawaiian Airlines
Deal found 9/9$251
This Kiwi.com deal was found by Cheapflights users on 9/11. 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 10/186:25 amIAD - SEA
Nonstop5h 43mHawaiian Airlines
Tue 10/214:20 pmSEA - IAD
Nonstop5h 03mHawaiian Airlines
Deal found 9/11$252

Cheapflights Fare Finder

 
Customize your flight search to find flights from Dulles Intl to Washington 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 September 11, 2025.
Use the filters below to find and compare flights from Washington, D.C. Dulles Intl Airport to Washington that are best for you.

Fly from

Dulles Intl

Fly to

Washington

Route

Depart

Return

Price

Washington, D.C.Spokane

IAD - GEG

IADGEG

Washington, D.C. Dulles Intl

Sat 10/18

7:35 am-12:35 pm

1 stop8h 00m

Spokane

Sat 10/25

1:10 pm-11:33 pm

1 stop7h 23m

$221

Washington, D.C.Spokane

IAD - GEG

IADGEG

Washington, D.C. Dulles Intl

Sat 10/4

6:23 am-11:22 am

1 stop7h 59m

Spokane

Sat 10/25

9:45 am-11:00 pm

2 stops10h 15m

$226

Washington, D.C.Spokane

IAD - GEG

IADGEG

Washington, D.C. Dulles Intl

Fri 10/31

3:25 pm-11:29 pm

1 stop11h 04m

Spokane

Tue 11/4

1:47 pm-11:15 pm

1 stop6h 28m

$249

Washington, D.C.Seattle

IAD - SEA

IADSEA

Washington, D.C. Dulles Intl

Fri 12/5

7:35 am-10:36 am

Nonstop6h 01m

Seattle/Tacoma Intl

Tue 12/30

10:14 pm-6:13 am

Nonstop4h 59m

$257

Washington, D.C.Seattle

IAD - SEA

IADSEA

Washington, D.C. Dulles Intl

Thu 10/30

6:13 pm-9:12 pm

Nonstop5h 59m

Seattle/Tacoma Intl

Mon 11/3

10:29 pm-6:23 am

Nonstop4h 54m

$257

Washington, D.C.Seattle

IAD - SEA

IADSEA

Washington, D.C. Dulles Intl

Thu 10/23

6:25 am-9:08 am

Nonstop5h 43m

Seattle/Tacoma Intl

Mon 10/27

10:29 pm-6:23 am

Nonstop4h 54m

$257

Washington, D.C.Seattle

IAD - SEA

IADSEA

Washington, D.C. Dulles Intl

Thu 10/9

5:55 pm-8:44 pm

Nonstop5h 49m

Seattle/Tacoma Intl

Wed 10/15

8:00 am-4:09 pm

Nonstop5h 09m

$257

Washington, D.C.Seattle

IAD - SEA

IADSEA

Washington, D.C. Dulles Intl

Wed 10/29

7:43 am-10:35 am

Nonstop5h 52m

Seattle/Tacoma Intl

Sat 11/1

11:29 pm-6:23 am

Nonstop4h 54m

$257

Washington, D.C.Seattle

IAD - SEA

IADSEA

Washington, D.C. Dulles Intl

Wed 10/8

7:35 am-10:28 am

Nonstop5h 53m

Seattle/Tacoma Intl

Wed 10/15

4:48 pm-12:40 am

Nonstop4h 52m

$257

Washington, D.C.Seattle

IAD - SEA

IADSEA

Washington, D.C. Dulles Intl

Sun 12/7

7:35 am-10:36 am

Nonstop6h 01m

Seattle/Tacoma Intl

Mon 12/29

10:14 pm-6:13 am

Nonstop4h 59m

$257

Flights are sorted by cheapest round-trip flights first.

Deals found on 9/10

Showing 1-10 of 60 results
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Best time to book a flight from Dulles Intl to Washington

Have a flexible travel schedule? Discover the best time to fly to Washington from Dulles Intl 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 Washington, D.C. Dulles Intl Airport to Washington

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

Currently, January is the cheapest month in which you can book a flight from Washington, D.C. Dulles Intl Airport to State of Washington (average of $238). Flying from Washington, D.C. Dulles Intl Airport to State of Washington in June is currently the most expensive (average of $388). 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 IAD to WA?

Find hourly flight availability from Dulles Intl to Washington. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated September 11, 2025.

When flying from Washington, D.C. Dulles Intl Airport to State of Washington, 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 Washington, D.C. Dulles Intl Airport to State of Washington

Explore weekly flight availability from Dulles Intl to Washington. 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 September 11, 2025.

The most flights from IAD to USWA are scheduled on a Thursday (28 on average). You will have fewer flight options on Sunday, which is when the least amount of flights are scheduled (19 on average).

Reviews of airlines servicing Washington

Get insights into the airlines that provide service to Washington. 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 Washington. Reviews last updated September 11, 2025.
Read through reviews of airlines operating flights from Washington, D.C. Dulles Intl Airport to Washington, such as Alaska Airlines, Delta, and Hawaiian Airlines. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.
Alaska Airlines
8.0
Very good
10,000 reviews

Entertainment

7.0

Boarding

8.1

Comfort

7.8

Crew

8.5

Overall

8.0

Food

7.1

Reviews

1 / 20
10.0
Excellent

Anonymous,Aug 2025

MFR - SEA

Great smooth flight. Was hour and half late though. Don't know why
Alaska Airlines
8.0
Very good
10,000 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Entertainment

7.0

Boarding

8.1

Comfort

7.8

Crew

8.5

Overall

8.0

Food

7.1

Reviews

1 / 20
10.0
Excellent

Anonymous,Aug 2025

MFR - SEA

Great smooth flight. Was hour and half late though. Don't know why
Delta
8.0
Very good
7,960 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Entertainment

7.0

Boarding

8.1

Comfort

7.8

Crew

8.5

Overall

8.0

Food

7.1

Reviews

1 / 20
10.0
Excellent

Anonymous,Aug 2025

MFR - SEA

Great smooth flight. Was hour and half late though. Don't know why
Hawaiian Airlines
7.8
Good
2,723 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Entertainment

7.0

Boarding

8.1

Comfort

7.8

Crew

8.5

Overall

8.0

Food

7.1

Reviews

1 / 20
10.0
Excellent

Anonymous,Aug 2025

MFR - SEA

Great smooth flight. Was hour and half late though. Don't know why
United Airlines
7.4
Good
8,937 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Entertainment

7.0

Boarding

8.1

Comfort

7.8

Crew

8.5

Overall

8.0

Food

7.1

Reviews

1 / 20
10.0
Excellent

Anonymous,Aug 2025

MFR - SEA

Great smooth flight. Was hour and half late though. Don't know why
Frontier
5.8
Fair
3,177 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Entertainment

7.0

Boarding

8.1

Comfort

7.8

Crew

8.5

Overall

8.0

Food

7.1

Reviews

1 / 20
10.0
Excellent

Anonymous,Aug 2025

MFR - SEA

Great smooth flight. Was hour and half late though. Don't know why

Related info for your journey

Find useful and relevant information for your journey from Dulles Intl to Washington. 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 Washington, D.C. Dulles Intl Airport to State of Washington?

    A quick flight from Washington, D.C. Dulles Intl Airport to State of Washington can take about 6h 01m. Delta provides one of the quickest options available for as low as $257. Airlines will cover a distance of 2299 mi. This flight may include one or multiple stops.

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

    One-way options have recently been found by users for as low as $111 on United Airlines. Other airlines that offer cheap prices include Delta from $116 and American Airlines from $117 one-way.

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

    When deciding which route to take from Washington, D.C. Dulles Intl Airport to State of Washington consider Washington, D.C. Dulles Intl - Seattle/Tacoma Intl, Washington, D.C. Dulles Intl - Portland or Washington, D.C. Dulles Intl - Spokane as they are the most popular.

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

    The top 3 most reliable airlines when flying from Washington, D.C. Dulles Intl Airport to State of Washington are Japan Airlines (97%), China Eastern (90%) and Delta (90%).

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

    On average you can expect to pay $844 for a flight from Washington, D.C. Dulles Intl Airport to State of Washington. The cheapest flight overall is $148 while the most popular route, (Washington, D.C. Dulles Intl - Seattle/Tacoma Intl) is currently priced at $186.

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

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

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

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

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

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

    Currently, January is the cheapest month in which you can book a flight from Washington, D.C. Dulles Intl Airport to State of Washington (average of $238). Flying from Washington, D.C. Dulles Intl Airport to State of Washington in June is currently the most expensive (average of $388). 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 Dulles Intl to Washington

See prices for flight routes from nearby airports that may be better suited for you.
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Reagan-National to Fort Lauderdale flights
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Top 7 airlines flying from Dulles Intl to Washington

Discover the top 7 airlines that operate flights from Dulles Intl to Washington. 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 September 11, 2025.
AirlineCheapestAverageFlexibilityOn-time
FrontierCheapest$111Average$255FlexibilityNo cancel feeOn-time62%
Hawaiian AirlinesCheapest$166Average$392FlexibilityNo cancel feeOn-time85%
DeltaCheapest$184Average$393FlexibilityNo cancel feeOn-timeN/A
Alaska AirlinesCheapest$260Average$455FlexibilityNo cancel feeOn-time75%
United AirlinesCheapest$285Average$444FlexibilityNo cancel feeOn-time69%
American AirlinesCheapest$321Average$506FlexibilityNo cancel feeOn-time71%
SouthwestCheapest$367Average$492FlexibilityNo cancel feeOn-time63%

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