Cheap flights from Washington, D.C. Dulles Intl Airport to Washington from $117

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Washington, D.C. Dulles Intl Airport to Washington departing on 4/7. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
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Find the cheapest flights from Washington, D.C. Dulles Intl Airport to Washington

Cheap round-trip flights

Enter your travel dates to find the best prices.
Delta Logo
7:00 am - 9:54 am
IAD
-
SEA
5h 54mnonstop
Delta Logo
3:59 pm - 11:55 pm
SEA
-
IAD
4h 56mnonstop
$199Delta
Tue, Apr 28 - Fri, May 1
Southwest Logo
5:50 am - 11:00 pm
IAD
-
SEA
20h 10m
2 stops
Southwest Logo
9:20 am - 11:40 pm
SEA
-
IAD
11h 20m
2 stops
$201Southwest
Sat, May 9 - Tue, May 12
United Airlines Logo
5:55 pm - 8:53 pm
IAD
-
SEA
5h 58mnonstop
United Airlines Logo
10:41 pm - 6:50 am
SEA
-
IAD
5h 09mnonstop
$206United Airlines
Sat, May 9 - Sat, May 16
Delta Logo
12:45 pm - 7:59 pm
IAD
-
SEA
10h 14m
1 stop
Delta Logo
3:59 pm - 11:55 pm
SEA
-
IAD
4h 56mnonstop
$208Delta
Wed, Apr 22 - Tue, Apr 28
Alaska Airlines Logo
7:11 pm - 10:02 pm
IAD
-
SEA
5h 51mnonstop
Alaska Airlines Logo
9:40 pm - 5:40 am
SEA
-
IAD
5h 00mnonstop
$209Alaska Airlines
Fri, Mar 20 - Tue, Mar 31
United Airlines Logo
5:55 pm - 8:53 pm
IAD
-
SEA
5h 58mnonstop
United Airlines Logo
2:27 pm - 12:58 am
SEA
-
IAD
7h 31m
1 stop
$210United Airlines
Sat, May 9 - Wed, May 13
United Airlines Logo
5:55 pm - 8:53 pm
IAD
-
SEA
5h 58mnonstop
United Airlines Logo
10:41 pm - 6:50 am
SEA
-
IAD
5h 09mnonstop
$214United Airlines
Thu, Apr 23 - Sun, May 3
United Airlines Logo
5:55 pm - 8:53 pm
IAD
-
SEA
5h 58mnonstop
United Airlines Logo
10:35 pm - 11:48 am
SEA
-
IAD
10h 13m
1 stop
$215United Airlines
Wed, Apr 15 - Sun, Apr 19
Alaska Airlines Logo
6:22 pm - 10:20 pm
IAD
-
GEG
30h 58m
1 stop
Alaska Airlines Logo
10:30 am - 5:41 pm
GEG
-
IAD
28h 11m
1 stop
$233Alaska Airlines
Tue, Apr 21 - Tue, Apr 28
American Airlines Logo
5:59 pm - 11:54 pm
IAD
-
PDX
8h 55m
1 stop
American Airlines Logo
11:23 pm - 10:56 am
PDX
-
IAD
8h 33m
1 stop
$298American Airlines
Thu, Apr 30 - Tue, May 5

Delta flights from Washington, D.C. Dulles Intl Airport to State of Washington

Our best Delta deals on Washington, D.C. Dulles Intl Airport to State of Washington flight tickets
Delta
Apr 28
IAD7:00 amWashington, D.C. Dulles Intl
5h 54m
SEA9:54 amSeattle/Tacoma Intl
May 1
SEA3:59 pmSeattle/Tacoma Intl
4h 56m
IAD11:55 pmWashington, D.C. Dulles Intl
$199
Delta
May 7
IAD6:00 amWashington, D.C. Dulles Intl
8h 05m
1 stop
SEA11:05 amSeattle/Tacoma Intl
May 10
SEA4:05 pmSeattle/Tacoma Intl
5h 10m
IAD12:15 amWashington, D.C. Dulles Intl
$208
Delta
May 4
IAD6:37 pmWashington, D.C. Dulles Intl
8h 17m
1 stop
SEA11:54 pmSeattle/Tacoma Intl
May 11
SEA10:35 pmSeattle/Tacoma Intl
7h 41m
1 stop
IAD9:16 amWashington, D.C. Dulles Intl
$217

Alaska Airlines flights from Washington, D.C. Dulles Intl Airport to State of Washington

Our best Alaska Airlines deals on Washington, D.C. Dulles Intl Airport to State of Washington flight tickets
Alaska Airlines
Mar 20
IAD7:11 pmWashington, D.C. Dulles Intl
5h 51m
SEA10:02 pmSeattle/Tacoma Intl
Mar 31
SEA9:40 pmSeattle/Tacoma Intl
5h 00m
IAD5:40 amWashington, D.C. Dulles Intl
$209
Alaska Airlines
Mar 21
IAD7:00 amWashington, D.C. Dulles Intl
5h 53m
SEA9:53 amSeattle/Tacoma Intl
Mar 26
SEA9:40 pmSeattle/Tacoma Intl
5h 00m
IAD5:40 amWashington, D.C. Dulles Intl
$223
Alaska Airlines
Mar 24
IAD7:00 amWashington, D.C. Dulles Intl
5h 53m
SEA9:53 amSeattle/Tacoma Intl
Mar 27
SEA9:40 pmSeattle/Tacoma Intl
5h 00m
IAD5:40 amWashington, D.C. Dulles Intl
$224

momondo Fare Finder

 
Customize your flight search to find flights from Washington, D.C. Dulles Intl Airport to State of 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, momondo users made 832,500 searches. Data last updated March 3, 2026.
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

Tue 4/28

7:00 am-9:54 am

Nonstop5h 54m

Seattle/Tacoma Intl

Fri 5/1

3:59 pm-11:55 pm

Nonstop4h 56m

$199

Washington, D.C.Seattle

IAD - SEA

IADSEA

Washington, D.C. Dulles Intl

Sat 5/9

5:50 am-11:00 pm

2 stops20h 10m

Seattle/Tacoma Intl

Tue 5/12

9:20 am-11:40 pm

2 stops11h 20m

$201

Washington, D.C.Seattle

IAD - SEA

IADSEA

Washington, D.C. Dulles Intl

Sat 5/9

5:55 pm-8:53 pm

Nonstop5h 58m

Seattle/Tacoma Intl

Sat 5/16

10:41 pm-6:50 am

Nonstop5h 09m

$206

Washington, D.C.Seattle

IAD - SEA

IADSEA

Washington, D.C. Dulles Intl

Wed 4/22

12:45 pm-7:59 pm

1 stop10h 14m

Seattle/Tacoma Intl

Tue 4/28

3:59 pm-11:55 pm

Nonstop4h 56m

$208

Washington, D.C.Seattle

IAD - SEA

IADSEA

Washington, D.C. Dulles Intl

Fri 3/20

7:11 pm-10:02 pm

Nonstop5h 51m

Seattle/Tacoma Intl

Tue 3/31

9:40 pm-5:40 am

Nonstop5h 00m

$209

Washington, D.C.Seattle

IAD - SEA

IADSEA

Washington, D.C. Dulles Intl

Sat 5/9

5:55 pm-8:53 pm

Nonstop5h 58m

Seattle/Tacoma Intl

Wed 5/13

2:27 pm-12:58 am

1 stop7h 31m

$210

Washington, D.C.Seattle

IAD - SEA

IADSEA

Washington, D.C. Dulles Intl

Thu 4/23

5:55 pm-8:53 pm

Nonstop5h 58m

Seattle/Tacoma Intl

Sun 5/3

10:41 pm-6:50 am

Nonstop5h 09m

$214

Washington, D.C.Seattle

IAD - SEA

IADSEA

Washington, D.C. Dulles Intl

Wed 4/15

5:55 pm-8:53 pm

Nonstop5h 58m

Seattle/Tacoma Intl

Sun 4/19

10:35 pm-11:48 am

1 stop10h 13m

$215

Washington, D.C.Spokane

IAD - GEG

IADGEG

Washington, D.C. Dulles Intl

Tue 4/21

6:22 pm-10:20 pm

1 stop30h 58m

Spokane

Tue 4/28

10:30 am-5:41 pm

1 stop28h 11m

$233

Washington, D.C.Portland

IAD - PDX

IADPDX

Washington, D.C. Dulles Intl

Thu 4/30

5:59 pm-11:54 pm

1 stop8h 55m

Portland

Tue 5/5

11:23 pm-10:56 am

1 stop8h 33m

$298

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
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See travel insights to Washington from

How to get the cheapest flight ticket from Washington, D.C. Dulles Intl Airport to State of Washington

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

What is the cheapest month to fly to State of Washington?

The month of January is, on average, the cheapest month to fly to State of Washington from Washington, D.C. Dulles Intl Airport, with most prices found around $231. If you aren’t able to travel to State of Washington during the month of January, then flying in February is also cheap. Prices for this month can be found on momondo for an average of $303.

What is the cheapest day to depart on your flight to State of Washington?

The cheapest day to depart from Washington, D.C. Dulles Intl Airport to State of Washington is on a Tuesday. Travelers who choose to depart for State of Washington on a Tuesday will often find tickets for as low as $437. When flying out on a Sunday, the most expensive travel day of the week, you can expect to see flight prices from Washington, D.C. Dulles Intl Airport to State of Washington for around $562.

What is the cheapest time of day to depart on your flight to State of Washington?

The cheapest time of day to fly to State of Washington is in the evening when flights can be purchased for as low as $438. If you have a flexible travel schedule, then try to avoid flying in the morning when prices are $484 on average. Flights to State of Washington from Washington, D.C. Dulles Intl Airport in the morning are generally more expensive because this time of day is more convenient for travelers’ schedules.

What is the cheapest Washington, D.C. Dulles Intl to Washington flight route?

Fly from Washington, D.C. Dulles Intl to Seattle/Tacoma Intl for the best Washington, D.C. Dulles Intl - Washington flight prices

How far in advance should I book a flight to State of Washington?

You are more likely to see cheaper flights to State of Washington from Washington, D.C. Dulles Intl Airport when booking weeks ahead of your departure date. In general, you can expect to find flights to State of Washington for around $382 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to State of Washington from Washington, D.C. Dulles Intl Airport for as low as $308 on momondo.

What cabin class options are available on Washington, D.C. Dulles Intl to Washington flights?

There are 4 cabin classes available to choose from on Washington, D.C. Dulles Intl to Washington flights. Cabin price and availability will vary by airline so perform a search above to find the right deals for you.

Can stopping save me money on Washington, D.C. Dulles Intl Airport to State of Washington flights?

No. A direct flight is the cheapest option for a flight between Washington, D.C. Dulles Intl Airport to State of Washington.

Cheap Washington, D.C. Dulles Intl Airport to State of Washington flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Washington, D.C. Dulles Intl Airport to State of Washington

Best Price Found

$212

Fastest flight time

5h 39m

Direct flights

Every day

Airports in State of Washington

96 airports
The best one-way flight to State of Washington from Washington, D.C. Dulles Intl Airport in the past 72 hours is $212. The best round-trip flight deal from Washington, D.C. Dulles Intl Airport to State of Washington found on momondo in the last 72 hours is $348.
The fastest flight from Washington, D.C. Dulles Intl Airport to State of Washington takes 5h 39m
Direct flights go from Washington, D.C. Dulles Intl Airport to State of Washington every day.
There are 96 airports in State of Washington. From Washington, D.C. Dulles Intl Airport there are direct flights to Portland (PDX), Seattle/Tacoma Intl (SEA).
  • When did momondo last update prices for flights from Washington, D.C. Dulles Intl Airport to Washington?

    Prices for flights from Washington, D.C. Dulles Intl Airport to Washington refresh daily.

  • How many operators does momondo search for flights from Washington, D.C. Dulles Intl Airport to Washington?

  • How old do you have to be to fly from Washington, D.C. Dulles Intl Airport to Washington?

    Although the minimum age for a child to fly alone is five, airlines that offer an unaccompanied minor (UMNR) service may have their own age limits, which could be impacted by factors such as flight length, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Washington, D.C. Dulles Intl Airport to Washington.

  • What documentation or ID do you need to fly to Washington?

    The required travel and health documents for your Washington trip may vary depending on your itinerary and personal circumstances. As a general rule, you should carry multiple documents, including a national ID card or driver's license and a passport valid for six months after your intended arrival at Washington. We recommend that you seek guidance from your airline or a reliable third party such as IATA.

  • What is the most popular plane model from Washington, D.C. Dulles Intl Airport to State of Washington?

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

Compare and see reviews for airlines that fly from Washington, D.C. Dulles Intl Airport to State of Washington with momondo
Airline
Rating
Free Cancellation
Price
FrontierPriceFrom $111Free CancellationRating
5.7
3,041 reviews
Search Frontier flights
Hawaiian AirlinesPriceFrom $143Free CancellationRating
7.8
2,836 reviews
Search Hawaiian Airlines flights
DeltaPriceFrom $144Free CancellationRating
7.9
8,242 reviews
Search Delta flights
United AirlinesPriceFrom $208Free CancellationRating
7.4
9,378 reviews
Search United Airlines flights
Alaska AirlinesPriceFrom $234Free CancellationRating
8.0
11,978 reviews
Search Alaska Airlines flights
American AirlinesPriceFrom $336Free CancellationRating
7.1
11,376 reviews
Search American Airlines flights
SouthwestPriceFrom $367Free CancellationRating
8.0
4,303 reviews
Search Southwest flights

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All flight searches from Washington, D.C. to Washington on momondo can be filtered to show those which offer flexible booking policies.

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1 adult
Thu 4/2
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