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Cheap flights from Washington to Washington, D.C. from $125

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 2/22. 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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0 bags

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Cheap round-trip flights

Enter your travel dates to find the best prices.
United Airlines Logo
7:30 pm - 7:35 am
SEA
-
IAD
9h 05m1 stop
United Airlines Logo
5:55 pm - 8:57 pm
IAD
-
SEA
6h 02mnonstop
$208United Airlines
Sun, Jan 11 - Sun, Jan 25
Delta Logo
3:20 pm - 11:10 pm
SEA
-
IAD
4h 50mnonstop
Delta Logo
5:26 pm - 9:49 pm
IAD
-
SEA
7h 23m1 stop
$209Delta
Thu, Jan 29 - Fri, Jan 30
United Airlines Logo
11:59 pm - 11:49 am
SEA
-
IAD
8h 50m1 stop
United Airlines Logo
5:55 pm - 8:56 pm
IAD
-
SEA
6h 01mnonstop
$211United Airlines
Thu, Feb 26 - Sun, Mar 1
United Airlines Logo
7:00 am - 5:35 pm
SEA
-
IAD
7h 35m1 stop
United Airlines Logo
5:55 pm - 8:57 pm
IAD
-
SEA
6h 02mnonstop
$214United Airlines
Mon, Jan 19 - Mon, Jan 26
United Airlines Logo
8:17 am - 4:19 pm
SEA
-
IAD
5h 02mnonstop
United Airlines Logo
5:55 pm - 8:56 pm
IAD
-
SEA
6h 01mnonstop
$216United Airlines
Mon, Feb 23 - Thu, Feb 26
United Airlines Logo
10:58 am - 9:17 pm
SEA
-
IAD
7h 19m1 stop
United Airlines Logo
5:17 pm - 10:43 pm
IAD
-
SEA
8h 26m1 stop
$217United Airlines
Sun, Jan 18 - Sun, Jan 25
Alaska Airlines Logo
8:30 am - 4:26 pm
SEA
-
IAD
4h 56mnonstop
Alaska Airlines Logo
6:04 pm - 9:08 pm
IAD
-
SEA
6h 04mnonstop
$224Alaska Airlines
Tue, Jan 27 - Fri, Jan 30
Alaska Airlines Logo
1:38 pm - 4:26 pm
GEG
-
IAD
23h 48m1 stop
Alaska Airlines Logo
6:04 pm - 11:12 am
IAD
-
GEG
20h 08m1 stop
$226Alaska Airlines
Thu, Jan 22 - Sun, Jan 25
American Airlines Logo
5:44 am - 4:31 pm
PDX
-
IAD
7h 47m1 stop
American Airlines Logo
3:13 pm - 12:16 am
IAD
-
PDX
12h 03m2 stops
$302American Airlines
Sat, Feb 21 - Wed, Feb 25
American Airlines Logo
5:20 am - 7:36 pm
BLI
-
IAD
11h 16m2 stops
American Airlines Logo
2:12 pm - 11:59 pm
IAD
-
BLI
12h 47m2 stops
$559American Airlines
Wed, Apr 15 - Thu, Apr 23

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

Our best Delta deals on State of Washington to Washington, D.C. Dulles Intl Airport flight tickets
Delta
Jan 29
SEA3:20 pmSeattle/Tacoma Intl
4h 50m
IAD11:10 pmWashington, D.C. Dulles Intl
Jan 30
IAD5:26 pmWashington, D.C. Dulles Intl
7h 23m
1 stop
SEA9:49 pmSeattle/Tacoma Intl
$209
Find similar
Delta
Feb 27
GEG5:00 amSpokane
15h 10m
1 stop
IAD11:10 pmWashington, D.C. Dulles Intl
Mar 2
IAD7:30 amWashington, D.C. Dulles Intl
18h 20m
1 stop
GEG10:50 pmSpokane
$227
Find similar
Delta
Feb 27
GEG7:30 pmSpokane
13h 23m
2 stops
IAD11:53 amWashington, D.C. Dulles Intl
Mar 3
IAD7:30 amWashington, D.C. Dulles Intl
14h 15m
1 stop
GEG6:45 pmSpokane
$232
Find similar

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

Our best Alaska Airlines deals on State of Washington to Washington, D.C. Dulles Intl Airport flight tickets
Alaska Airlines
Jan 17
SEA8:30 amSeattle/Tacoma Intl
4h 56m
IAD4:26 pmWashington, D.C. Dulles Intl
Jan 24
IAD6:04 pmWashington, D.C. Dulles Intl
6h 04m
SEA9:08 pmSeattle/Tacoma Intl
$218
Find similar
Alaska Airlines
Feb 4
SEA8:30 amSeattle/Tacoma Intl
4h 56m
IAD4:26 pmWashington, D.C. Dulles Intl
Feb 6
IAD6:04 pmWashington, D.C. Dulles Intl
6h 04m
SEA9:08 pmSeattle/Tacoma Intl
$224
Find similar
Alaska Airlines
Feb 6
GEG1:38 pmSpokane
23h 48m
1 stop
IAD4:26 pmWashington, D.C. Dulles Intl
Feb 8
IAD6:04 pmWashington, D.C. Dulles Intl
26h 02m
1 stop
GEG5:06 pmSpokane
$226
Find similar

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 December 23, 2025.
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

Sun 1/11

7:30 pm-7:35 am

1 stop9h 05m

Washington, D.C. Dulles Intl

Sun 1/25

5:55 pm-8:57 pm

Nonstop6h 02m

$208

SeattleWashington, D.C.

SEA - IAD

SEAIAD

Seattle/Tacoma Intl

Thu 1/29

3:20 pm-11:10 pm

Nonstop4h 50m

Washington, D.C. Dulles Intl

Fri 1/30

5:26 pm-9:49 pm

1 stop7h 23m

$209

SeattleWashington, D.C.

SEA - IAD

SEAIAD

Seattle/Tacoma Intl

Thu 2/26

11:59 pm-11:49 am

1 stop8h 50m

Washington, D.C. Dulles Intl

Sun 3/1

5:55 pm-8:56 pm

Nonstop6h 01m

$211

SeattleWashington, D.C.

SEA - IAD

SEAIAD

Seattle/Tacoma Intl

Mon 1/19

7:00 am-5:35 pm

1 stop7h 35m

Washington, D.C. Dulles Intl

Mon 1/26

5:55 pm-8:57 pm

Nonstop6h 02m

$214

SeattleWashington, D.C.

SEA - IAD

SEAIAD

Seattle/Tacoma Intl

Mon 2/23

8:17 am-4:19 pm

Nonstop5h 02m

Washington, D.C. Dulles Intl

Thu 2/26

5:55 pm-8:56 pm

Nonstop6h 01m

$216

SeattleWashington, D.C.

SEA - IAD

SEAIAD

Seattle/Tacoma Intl

Sun 1/18

10:58 am-9:17 pm

1 stop7h 19m

Washington, D.C. Dulles Intl

Sun 1/25

5:17 pm-10:43 pm

1 stop8h 26m

$217

SeattleWashington, D.C.

SEA - IAD

SEAIAD

Seattle/Tacoma Intl

Tue 1/27

8:30 am-4:26 pm

Nonstop4h 56m

Washington, D.C. Dulles Intl

Fri 1/30

6:04 pm-9:08 pm

Nonstop6h 04m

$224

SpokaneWashington, D.C.

GEG - IAD

GEGIAD

Spokane

Thu 1/22

1:38 pm-4:26 pm

1 stop23h 48m

Washington, D.C. Dulles Intl

Sun 1/25

6:04 pm-11:12 am

1 stop20h 08m

$226

PortlandWashington, D.C.

PDX - IAD

PDXIAD

Portland

Sat 2/21

5:44 am-4:31 pm

1 stop7h 47m

Washington, D.C. Dulles Intl

Wed 2/25

3:13 pm-12:16 am

2 stops12h 03m

$302

BellinghamWashington, D.C.

BLI - IAD

BLIIAD

Bellingham

Wed 4/15

5:20 am-7:36 pm

2 stops11h 16m

Washington, D.C. Dulles Intl

Thu 4/23

2:12 pm-11:59 pm

2 stops12h 47m

$559

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 $344.

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 $434. 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 $581.

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 $338 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 $534 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 $404 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 $289 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

$221

Fastest flight time

4h 48m

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 $221. 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 $371.
The fastest flight from State of Washington to Washington, D.C. Dulles Intl Airport takes 4h 48m
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
Hawaiian AirlinesPriceFrom $143Free CancellationRating
7.8
2,820 reviews
Search Hawaiian Airlines flights
DeltaPriceFrom $149Free CancellationRating
7.9
8,014 reviews
Search Delta flights
FrontierPriceFrom $188Free CancellationRating
5.8
3,076 reviews
Search Frontier flights
United AirlinesPriceFrom $257Free CancellationRating
7.4
9,103 reviews
Search United Airlines flights
Alaska AirlinesPriceFrom $277Free CancellationRating
8.0
11,506 reviews
Search Alaska Airlines flights
American AirlinesPriceFrom $336Free CancellationRating
7.2
11,053 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
Fredericksburg
Towson
Rockville
Harpers Ferry
Gaithersburg
Reston
Manassas
Sterling
Fairfax

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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