$124+ 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 3/2. Fares are subject to change and may not be available on all flights or dates of travel.
Find cheap flights from Dulles Intl to Washington with Cheapflights
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Cheapest flights from Dulles Intl to WashingtonExplore 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 January 29, 2026.
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 January 29, 2026.
This SmartFares deal was found by Cheapflights users on 1/28. 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 SmartFares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
This Kiwi.com deal was found by Cheapflights users on 1/27. 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.
This Kiwi.com deal was found by Cheapflights users on 1/28. 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.
This Delta deal was found by Cheapflights users on 1/28. 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.
This United Airlines deal was found by Cheapflights users on 1/27. 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.
This United Airlines deal was found by Cheapflights users on 1/28. 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.
This Kiwi.com deal was found by Cheapflights users on 1/28. 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.
This Delta deal was found by Cheapflights users on 1/27. 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.
This United Airlines deal was found by Cheapflights users on 1/27. 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.
This Alaska Airlines deal was found by Cheapflights users on 1/26. 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.
This United Airlines deal was found by Cheapflights users on 1/28. 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.
This United Airlines deal was found by Cheapflights users on 1/28. 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.
Find 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 January 29, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $209 (SmartFares) |
One-way from | $124 (Kiwi.com) |
Popular in | June |
Cheapest in | September |
Average price | $368 |
Good round-trip deal | $273 or less |
Good one-way deal | $281 or less |
Cheapflights Fare Finder
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
Fly to
Route
Depart
Return
Price
Washington, D.C.Seattle
IAD - SEA
IADSEA
Washington, D.C. Dulles Intl
Fri 4/24
7:20 pm-10:05 pm
Nonstop5h 45m
Seattle/Tacoma Intl
Wed 5/6
3:55 pm-12:09 am
Nonstop5h 14m
Washington, D.C.Seattle
IAD - SEA
IADSEA
Washington, D.C. Dulles Intl
Sat 4/25
5:55 pm-8:53 pm
Nonstop5h 58m
Seattle/Tacoma Intl
Sat 5/2
8:00 am-4:12 pm
Nonstop5h 12m
Washington, D.C.Seattle
IAD - SEA
IADSEA
Washington, D.C. Dulles Intl
Thu 4/23
9:00 am-11:47 am
Nonstop5h 47m
Seattle/Tacoma Intl
Sat 5/2
10:00 am-6:20 pm
Nonstop5h 20m
Washington, D.C.Seattle
IAD - SEA
IADSEA
Washington, D.C. Dulles Intl
Mon 3/2
4:10 pm-12:59 am
1 stop11h 49m
Seattle/Tacoma Intl
Mon 3/9
8:00 am-4:02 pm
Nonstop5h 02m
Washington, D.C.Seattle
IAD - SEA
IADSEA
Washington, D.C. Dulles Intl
Sat 5/2
5:55 pm-8:53 pm
Nonstop5h 58m
Seattle/Tacoma Intl
Sat 5/9
7:36 pm-7:35 am
1 stop8h 59m
Washington, D.C.Seattle
IAD - SEA
IADSEA
Washington, D.C. Dulles Intl
Thu 5/7
5:55 pm-8:53 pm
Nonstop5h 58m
Seattle/Tacoma Intl
Sat 5/9
2:23 pm-12:18 am
1 stop6h 55m
Washington, D.C.Pasco
IAD - PSC
IADPSC
Washington, D.C. Dulles Intl
Wed 2/18
2:12 pm-8:50 pm
1 stop9h 38m
Pasco Tri Cities
Sat 2/21
3:05 pm-5:27 am
1 stop11h 22m
Washington, D.C.Seattle
IAD - SEA
IADSEA
Washington, D.C. Dulles Intl
Tue 3/3
3:58 pm-9:12 pm
1 stop8h 14m
Seattle/Tacoma Intl
Sat 3/7
7:00 am-5:40 pm
1 stop7h 40m
Washington, D.C.Seattle
IAD - SEA
IADSEA
Washington, D.C. Dulles Intl
Wed 5/13
5:11 pm-10:59 pm
1 stop8h 48m
Seattle/Tacoma Intl
Sat 5/16
2:23 pm-12:18 am
1 stop6h 55m
Washington, D.C.Seattle
IAD - SEA
IADSEA
Washington, D.C. Dulles Intl
Wed 4/29
1:10 pm-7:00 pm
1 stop8h 50m
Seattle/Tacoma Intl
Sun 5/3
7:05 pm-5:28 am
1 stop7h 23m
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.
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, February is the cheapest month in which you can book a flight from Washington, D.C. Dulles Intl Airport to State of Washington (average of $119). Flying from Washington, D.C. Dulles Intl Airport to State of Washington in July is currently the most expensive (average of $240). 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 January 29, 2026.
Unlike in the morning, when flights are generally more expensive, you can save up to 11% on flights from Washington, D.C. Dulles Intl Airport to State of Washington by exploring options for tickets in the evening.
What is the cheapest day to fly from Washington, D.C. Dulles Intl Airport to State of Washington?
Use this chart to determine the cheapest time to fly round-trip from Dulles Intl to Washington. Price data was last updated on January 24, 2026.
Travelers seeking maximum savings on their Washington, D.C. Dulles Intl Airport to State of Washington flight should consider departing on Thursday evenings when fares are most often at their lowest. Monday evenings flights should be avoided if possible as fares are typically the most expensive at this time.
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 January 29, 2026.
The most flights from IAD to USWA are scheduled on a Thursday (18 on average). You will have fewer flight options on Monday, which is when the least amount of flights are scheduled (16 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 January 29, 2026.
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.
Comfort
Crew
Boarding
Food
Entertainment
Overall
Reviews
Anonymous,Dec 2025
SJC - SEA
Comfort
Crew
Boarding
Food
Entertainment
Overall
Reviews
Anonymous,Dec 2025
SJC - SEA
Comfort
Crew
Boarding
Food
Entertainment
Overall
Reviews
Anonymous,Dec 2025
SJC - SEA
Comfort
Crew
Boarding
Food
Entertainment
Overall
Reviews
Anonymous,Dec 2025
SJC - SEA
Comfort
Crew
Boarding
Food
Entertainment
Overall
Reviews
Anonymous,Dec 2025
SJC - SEA
Comfort
Crew
Boarding
Food
Entertainment
Overall
Reviews
Anonymous,Dec 2025
SJC - SEA
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.
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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.
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 January 29, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$111 | Average$252 | FlexibilityNo cancel fee | On-time62% | |
| Cheapest$143 | Average$369 | FlexibilityNo cancel fee | On-time85% | |
| Cheapest$145 | Average$375 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$213 | Average$458 | FlexibilityNo cancel fee | On-time69% | |
| Cheapest$236 | Average$454 | FlexibilityNo cancel fee | On-time75% | |
| Cheapest$336 | Average$527 | FlexibilityNo cancel fee | On-time71% | |
| Cheapest$367 | Average$492 | FlexibilityNo cancel fee | On-time63% |