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Cheap flights from Washington to Washington, D.C. from $119

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 to Washington, D.C. departing on 3/11. 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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Cheap round-trip flights

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American Airlines Logo
5:37 am - 4:50 pm
SEA
-
IAD
8h 13m
1 stop
American Airlines Logo
5:00 am - 11:27 am
IAD
-
SEA
9h 27m
1 stop
$217American Airlines
Fri, Feb 20 - Wed, Feb 25
Hawaiian Airlines Logo
9:27 am - 5:20 pm
SEA
-
IAD
4h 53mnonstop
Hawaiian Airlines Logo
7:05 am - 10:05 am
IAD
-
SEA
6h 00mnonstop
$225Hawaiian Airlines
Thu, Feb 26 - Wed, Mar 4
Hawaiian Airlines Logo
9:27 am - 5:20 pm
SEA
-
IAD
4h 53mnonstop
Hawaiian Airlines Logo
7:05 am - 10:05 am
IAD
-
SEA
6h 00mnonstop
$226Hawaiian Airlines
Thu, Feb 26 - Wed, Mar 4
Hawaiian Airlines Logo
9:27 am - 5:20 pm
SEA
-
IAD
4h 53mnonstop
Hawaiian Airlines Logo
7:05 am - 10:05 am
IAD
-
SEA
6h 00mnonstop
$230Hawaiian Airlines
Thu, Feb 26 - Wed, Mar 4
Delta Logo
10:40 pm - 9:10 am
GEG
-
IAD
7h 30m
1 stop
Delta Logo
7:00 am - 1:00 pm
IAD
-
GEG
9h 00m
1 stop
$237Delta
Wed, Mar 25 - Wed, Apr 1
Delta Logo
3:55 pm - 11:49 pm
SEA
-
IAD
4h 54mnonstop
Delta Logo
7:00 am - 10:03 am
IAD
-
SEA
6h 03mnonstop
$237Delta
Tue, Mar 31 - Tue, Apr 7
United Airlines Logo
12:43 pm - 11:21 pm
SEA
-
IAD
7h 38m
1 stop
United Airlines Logo
5:55 pm - 8:56 pm
IAD
-
SEA
6h 01mnonstop
$243United Airlines
Wed, Mar 4 - Wed, Mar 11
United Airlines Logo
7:10 pm - 5:17 am
SEA
-
IAD
7h 07m
1 stop
United Airlines Logo
5:55 pm - 8:56 pm
IAD
-
SEA
6h 01mnonstop
$247United Airlines
Thu, Mar 5 - Sun, Mar 8
Alaska Airlines Logo
3:52 pm - 5:40 am
PDX
-
IAD
10h 48m
1 stop
Alaska Airlines Logo
6:20 pm - 9:49 am
IAD
-
PDX
18h 29m
1 stop
$302Alaska Airlines
Thu, Mar 12 - Tue, Mar 17
Alaska Airlines Logo
5:00 am - 5:20 pm
PUW
-
IAD
9h 20m
1 stop
Alaska Airlines Logo
7:05 am - 1:35 pm
IAD
-
PUW
9h 30m
1 stop
$307Alaska Airlines
Tue, Mar 3 - Wed, Mar 4

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

Our best American Airlines deals on State of Washington to Washington, D.C. Dulles Intl Airport flight tickets
American Airlines
Feb 20
SEA5:37 amSeattle/Tacoma Intl
8h 13m
1 stop
IAD4:50 pmWashington, D.C. Dulles Intl
Feb 25
IAD5:00 amWashington, D.C. Dulles Intl
9h 27m
1 stop
SEA11:27 amSeattle/Tacoma Intl
$217
American Airlines
Feb 21
SEA10:08 pmSeattle/Tacoma Intl
7h 40m
1 stop
IAD8:48 amWashington, D.C. Dulles Intl
Feb 28
IAD5:00 amWashington, D.C. Dulles Intl
10h 51m
1 stop
SEA12:51 pmSeattle/Tacoma Intl
$262
American Airlines
Feb 25
SEA5:37 amSeattle/Tacoma Intl
7h 57m
1 stop
IAD4:34 pmWashington, D.C. Dulles Intl
Feb 26
IAD5:00 amWashington, D.C. Dulles Intl
10h 51m
1 stop
SEA12:51 pmSeattle/Tacoma Intl
$268

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

Our best United Airlines deals on State of Washington to Washington, D.C. Dulles Intl Airport flight tickets
United Airlines
Feb 28
SEA12:42 pmSeattle/Tacoma Intl
7h 39m
1 stop
IAD11:21 pmWashington, D.C. Dulles Intl
Mar 4
IAD5:55 pmWashington, D.C. Dulles Intl
6h 01m
SEA8:56 pmSeattle/Tacoma Intl
$243
United Airlines
Mar 7
SEA8:00 amSeattle/Tacoma Intl
5h 02m
IAD4:02 pmWashington, D.C. Dulles Intl
Mar 11
IAD4:10 pmWashington, D.C. Dulles Intl
10h 18m
1 stop
SEA11:28 pmSeattle/Tacoma Intl
$247
United Airlines
Feb 28
SEA12:42 pmSeattle/Tacoma Intl
7h 39m
1 stop
IAD11:21 pmWashington, D.C. Dulles Intl
Mar 2
IAD2:36 pmWashington, D.C. Dulles Intl
9h 25m
1 stop
SEA9:01 pmSeattle/Tacoma Intl
$252

momondo Fare Finder

 
Customize your flight search to find flights from State of Washington to Washington, D.C. Dulles Intl Airport 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 February 8, 2026.
Use the filters below to find and compare flights from Washington to Washington, D.C. Dulles Intl Airport that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

SeattleWashington, D.C.

SEA - IAD

SEAIAD

Seattle/Tacoma Intl

Fri 2/20

5:37 am-4:50 pm

1 stop8h 13m

Washington, D.C. Dulles Intl

Wed 2/25

5:00 am-11:27 am

1 stop9h 27m

$217

SeattleWashington, D.C.

SEA - IAD

SEAIAD

Seattle/Tacoma Intl

Thu 2/26

9:27 am-5:20 pm

Nonstop4h 53m

Washington, D.C. Dulles Intl

Wed 3/4

7:05 am-10:05 am

Nonstop6h 00m

$225

SeattleWashington, D.C.

SEA - IAD

SEAIAD

Seattle/Tacoma Intl

Thu 2/26

9:27 am-5:20 pm

Nonstop4h 53m

Washington, D.C. Dulles Intl

Wed 3/4

7:05 am-10:05 am

Nonstop6h 00m

$226

SeattleWashington, D.C.

SEA - IAD

SEAIAD

Seattle/Tacoma Intl

Thu 2/26

9:27 am-5:20 pm

Nonstop4h 53m

Washington, D.C. Dulles Intl

Wed 3/4

7:05 am-10:05 am

Nonstop6h 00m

$230

SpokaneWashington, D.C.

GEG - IAD

GEGIAD

Spokane

Wed 3/25

10:40 pm-9:10 am

1 stop7h 30m

Washington, D.C. Dulles Intl

Wed 4/1

7:00 am-1:00 pm

1 stop9h 00m

$237

SeattleWashington, D.C.

SEA - IAD

SEAIAD

Seattle/Tacoma Intl

Tue 3/31

3:55 pm-11:49 pm

Nonstop4h 54m

Washington, D.C. Dulles Intl

Tue 4/7

7:00 am-10:03 am

Nonstop6h 03m

$237

SeattleWashington, D.C.

SEA - IAD

SEAIAD

Seattle/Tacoma Intl

Wed 3/4

12:43 pm-11:21 pm

1 stop7h 38m

Washington, D.C. Dulles Intl

Wed 3/11

5:55 pm-8:56 pm

Nonstop6h 01m

$243

SeattleWashington, D.C.

SEA - IAD

SEAIAD

Seattle/Tacoma Intl

Thu 3/5

7:10 pm-5:17 am

1 stop7h 07m

Washington, D.C. Dulles Intl

Sun 3/8

5:55 pm-8:56 pm

Nonstop6h 01m

$247

PortlandWashington, D.C.

PDX - IAD

PDXIAD

Portland

Thu 3/12

3:52 pm-5:40 am

1 stop10h 48m

Washington, D.C. Dulles Intl

Tue 3/17

6:20 pm-9:49 am

1 stop18h 29m

$302

PullmanWashington, D.C.

PUW - IAD

PUWIAD

Pullman Moscow Regional

Tue 3/3

5:00 am-5:20 pm

1 stop9h 20m

Washington, D.C. Dulles Intl

Wed 3/4

7:05 am-1:35 pm

1 stop9h 30m

$307

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, D.C. from

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

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 Washington, D.C. Dulles Intl Airport?

In general, October is the cheapest month to fly from State of Washington to Washington, D.C. Dulles Intl Airport. Due to it being the ‘off-season’ during this time, you can expect flight prices to be around $325. If you aren’t able to travel to Washington, D.C. Dulles Intl Airport during the month of October, then flying in February is also cheap. Prices for this month can be found on momondo for an average of $330.

What is the cheapest day to depart on your flight to Washington, D.C. Dulles Intl Airport?

Our data shows that Thursday is the least expensive day to fly to Washington, D.C. Dulles Intl Airport. Tickets to fly out on this day can be as low as $429. When flying out on a Sunday, the most expensive travel day of the week, you can expect to see flight prices from State of Washington to Washington, D.C. Dulles Intl Airport for around $580.

What is the cheapest time of day to depart on your flight to Washington, D.C. Dulles Intl Airport?

Flying to Washington, D.C. Dulles Intl Airport from State of Washington in the afternoon is the least expensive time of day to depart. momondo users have found prices as low as $329 when looking at flights departing in the afternoon. If you have a flexible travel schedule, then try to avoid flying in the morning when prices are $529 on average. Flights to Washington, D.C. Dulles Intl Airport from State of Washington in the morning are generally more expensive because this time of day is more convenient for travelers’ schedules.

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

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

How far in advance should I book a flight to Washington, D.C. Dulles Intl Airport?

You are more likely to see cheaper flights to Washington, D.C. Dulles Intl Airport from State of Washington when booking weeks ahead of your departure date. In general, you can expect to find flights to Washington, D.C. Dulles Intl Airport for around $421 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Washington, D.C. Dulles Intl Airport from State of Washington for as low as $315 on momondo.

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

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

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

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

Best Price Found

$173

Fastest flight time

4h 50m

Direct flights

Every day
The best one-way flight to Washington, D.C. Dulles Intl Airport from State of Washington in the past 72 hours is $173. The best round-trip flight deal from State of Washington to Washington, D.C. Dulles Intl Airport found on momondo in the last 72 hours is $301.
The fastest flight from State of Washington to Washington, D.C. Dulles Intl Airport takes 4h 50m
Direct flights go from State of Washington to Washington, D.C. Dulles Intl Airport every day.
Search flight deals

  • When did momondo last update prices for flights from Washington to Washington, D.C. Dulles Intl Airport?

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

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

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

    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 to Washington, D.C. Dulles Intl Airport.

  • What documentation or ID do you need to fly to Washington, D.C. Dulles Intl Airport?

    The travel and health documents you'll need for your trip to Washington, D.C. Dulles Intl Airport may differ based on your itinerary and personal situation. Typically, you should have several documents on hand, such as a national ID card or driver's license and a passport that is valid for six months after your intended arrival at Washington, D.C. Dulles Intl Airport. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.

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

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

Compare and see reviews for airlines that fly from State of Washington to Washington, D.C. Dulles Intl Airport with momondo
Airline
Rating
Free Cancellation
Price
FrontierPriceFrom $126Free CancellationRating
5.7
3,052 reviews
Search Frontier flights
Hawaiian AirlinesPriceFrom $138Free CancellationRating
7.8
2,829 reviews
Search Hawaiian Airlines flights
DeltaPriceFrom $144Free CancellationRating
7.9
8,172 reviews
Search Delta flights
United AirlinesPriceFrom $223Free CancellationRating
7.4
9,254 reviews
Search United Airlines flights
Alaska AirlinesPriceFrom $247Free CancellationRating
8.0
11,850 reviews
Search Alaska Airlines flights
SouthwestPriceFrom $296Free CancellationRating
8.0
4,280 reviews
Search Southwest flights
American AirlinesPriceFrom $336Free CancellationRating
7.2
11,249 reviews
Search American Airlines flights

Traveling to a place near Washington, D.C.?

Book flights to Washington, D.C. if you plan to visit one of these locations
Alexandria
National Harbor
Gettysburg
Arlington
Winchester
Waldorf
Woodbridge
Tysons
Laurel
Colonial Beach
Silver Spring
Towson
Fredericksburg
Gaithersburg
Rockville
Manassas
Springfield
Sterling
Fairfax
Linthicum Heights

Why use momondo?

Why should I use momondo to find a flight deal from Washington to Washington, D.C.?

momondo compares prices from hundreds of airlines and agents so you can find and book the best deal on flights from Washington to Washington, D.C.. Millions of users trust and use momondo every year so you are in good hands.

Can I find flights from Washington to Washington, D.C. with flexible booking policies on momondo?

Yes. momondo enables you to select and highlight flights to Washington, D.C. from Washington with this policy.

How can momondo help me find flights from Washington to Washington, D.C.?

Once you have performed a search in the form on the page, momondo provides useful filters and insights. We can show you the cheapest days and times to fly as well as help filter your options to help you make an informed choice when booking flights to Washington, D.C. from Washington.

I’m not ready to book a flight from Washington to Washington, D.C. right now. Can momondo alert me if prices change?

If you are simply researching potential flights to Washington, D.C., momondo offers a useful price alert feature which will track prices for flights to Washington, D.C. from Washington and alert you when they change.

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