How long does it take to fly to Washington, D.C. Dulles Intl Airport?

Flight times from State of Washington to Washington, D.C. Dulles Intl Airport vary, but if you’re flying out of Seattle and flying into Washington, D.C. Dulles Intl Airport (one of the most popular routes), then the duration is 4h 53m on average. Another popular route from State of Washington to Washington, D.C. Dulles Intl Airport is flying from Spokane to Washington, D.C. Dulles Intl Airport, which will take roughly 6h 28m. Keep in mind that layovers or delays could extend your travel time.

What airlines fly to Washington, D.C. Dulles Intl Airport?

Alaska Airlines, United Airlines and Delta are the top three most popular airlines that fly to Washington, D.C. Dulles Intl Airport from State of Washington according to our data. Alaska Airlines is the first choice among our users, with 51% of people opting to fly with this airline when traveling to Washington, D.C. Dulles Intl Airport. Keep in mind that there are 6 different airlines that fly to Washington, D.C. Dulles Intl Airport on a routine basis, so you have a few additional options to choose from.

What is the cheapest airline that flies from Washington to Washington, D.C. Dulles Intl?

United Airlines, Delta, and Alaska Airlines are the most popular carriers operating from Washington to Washington, D.C. Dulles Intl

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

As of June 2026, there are 7 operators available to choose from 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.

$148 Cheap Flights from State of Washington to Washington, D.C. Dulles Intl Airport in 2026

Q: How many flights depart from State of Washington to Washington, D.C. Dulles Intl Airport on average per week?

The number of flights available between State of Washington and Washington, D.C. Dulles Intl Airport is 146 per week as of June 2026. The most frequent departure day is Fri, with 18% of weekly flights leaving on this day.

Discover deals from 900+ travel sites with momondo.

Find the cheapest flights from Washington to Washington, D.C.

Round-trip

One-way

Last minute

Direct

Cheap round-trip flights

Enter your travel dates to find the best prices.

1:05 pm - 1:13 am

GEG

IAD

9h 08m

1 stop

2:43 pm - 8:49 pm

IAD

GEG

9h 06m

1 stop

$275United Airlines

Tue, Sep 29 - Sat, Oct 10

9:35 pm - 5:40 am

SEA

IAD

5h 05mnonstop

7:00 am - 9:37 am

IAD

SEA

5h 37mnonstop

$281Alaska Airlines

Tue, Aug 25 - Sun, Aug 30

8:53 pm - 8:04 am

SEA

IAD

32h 11m

1 stop

9:20 am - 10:39 am

IAD

SEA

28h 19m

1 stop

$293Frontier

Sun, Aug 16 - Wed, Aug 26

7:40 am - 6:27 pm

SEA

IAD

7h 47m

1 stop

6:38 pm - 12:50 am

IAD

SEA

9h 12m

1 stop

$295American Airlines

Wed, Aug 26 - Sun, Sep 6

12:36 pm - 12:34 am

GEG

IAD

8h 58m

1 stop

7:25 am - 12:20 pm

IAD

GEG

7h 55m

1 stop

$307Delta

Wed, Sep 2 - Tue, Sep 8

11:10 am - 10:49 pm

GEG

IAD

8h 39m

1 stop

7:10 am - 12:20 pm

IAD

GEG

8h 10m

1 stop

$324Delta

Wed, Sep 30 - Thu, Oct 1

8:48 pm - 8:20 am

PSC

IAD

8h 32m

1 stop

9:50 am - 7:58 pm

IAD

PSC

13h 08m

1 stop

$367Multiple Airlines

Mon, Jul 20 - Mon, Jul 27

6:19 pm - 7:50 am

PDX

IAD

10h 31m

1 stop

7:35 pm - 9:30 am

IAD

PDX

16h 55m

1 stop

$384Multiple Airlines

Fri, Aug 21 - Mon, Aug 24

6:49 pm - 5:14 pm

PDX

IAD

19h 25m

2 stops

9:50 am - 4:54 pm

IAD

PDX

10h 04m

1 stop

$387Frontier

Thu, Aug 6 - Fri, Aug 14

6:27 am - 6:27 pm

PDX

IAD

9h 00m

1 stop

6:09 am - 12:48 pm

IAD

PDX

9h 39m

1 stop

$397American Airlines

Sat, Aug 22 - Wed, Aug 26

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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

Sep 19

SEA11:00 pmSeattle/Tacoma Intl

7h 28m

1 stop

IAD9:28 amWashington, D.C. Dulles Intl

Sep 27

IAD5:45 pmWashington, D.C. Dulles Intl

5h 52m

SEA8:37 pmSeattle/Tacoma Intl

$287

United Airlines

Aug 20

SEA6:15 pmSeattle/Tacoma Intl

8h 10m

1 stop

IAD5:25 amWashington, D.C. Dulles Intl

Aug 26

IAD5:33 pmWashington, D.C. Dulles Intl

5h 45m

SEA8:18 pmSeattle/Tacoma Intl

$288

United Airlines

Aug 19

SEA6:15 pmSeattle/Tacoma Intl

8h 10m

1 stop

IAD5:25 amWashington, D.C. Dulles Intl

Aug 26

IAD6:00 pmWashington, D.C. Dulles Intl

5h 45m

SEA8:45 pmSeattle/Tacoma Intl

$291

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

Our best Frontier deals on State of Washington to Washington, D.C. Dulles Intl Airport flight tickets

Frontier

Aug 16

SEA8:53 pmSeattle/Tacoma Intl

32h 11m

1 stop

IAD8:04 amWashington, D.C. Dulles Intl

Aug 26

IAD9:20 amWashington, D.C. Dulles Intl

28h 19m

1 stop

SEA10:39 amSeattle/Tacoma Intl

$293

Frontier

Aug 4

SEA8:13 pmSeattle/Tacoma Intl

9h 07m

1 stop

IAD8:20 amWashington, D.C. Dulles Intl

Aug 12

IAD9:50 amWashington, D.C. Dulles Intl

28h 18m

1 stop

SEA11:08 amSeattle/Tacoma Intl

$302

Frontier

Aug 4

SEA11:54 amSeattle/Tacoma Intl

17h 26m

2 stops

IAD8:20 amWashington, D.C. Dulles Intl

Aug 10

IAD9:50 amWashington, D.C. Dulles Intl

28h 18m

1 stop

SEA11:08 amSeattle/Tacoma Intl

$303

momondo Fare Finder

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

Cheapest round-trip

SpokaneWashington, D.C.

GEG - IAD

GEGIAD

Spokane

Tue 9/29

1:05 pm-1:13 am

1 stop9h 08m

Washington, D.C. Dulles Intl

Sat 10/10

2:43 pm-8:49 pm

1 stop9h 06m

$275

Quickest round-trip

SeattleWashington, D.C.

SEA - IAD

SEAIAD

Seattle/Tacoma Intl

Tue 8/25

9:35 pm-5:40 am

Nonstop5h 05m

Washington, D.C. Dulles Intl

Sun 8/30

7:00 am-9:37 am

Nonstop5h 37m

$281

SeattleWashington, D.C.

SEA - IAD

SEAIAD

Seattle/Tacoma Intl

Sun 8/16

8:53 pm-8:04 am

1 stop32h 11m

Washington, D.C. Dulles Intl

Wed 8/26

9:20 am-10:39 am

1 stop28h 19m

$293

SeattleWashington, D.C.

SEA - IAD

SEAIAD

Seattle/Tacoma Intl

Wed 8/26

7:40 am-6:27 pm

1 stop7h 47m

Washington, D.C. Dulles Intl

Sun 9/6

6:38 pm-12:50 am

1 stop9h 12m

$295

SpokaneWashington, D.C.

GEG - IAD

GEGIAD

Spokane

Wed 9/2

12:36 pm-12:34 am

1 stop8h 58m

Washington, D.C. Dulles Intl

Tue 9/8

7:25 am-12:20 pm

1 stop7h 55m

$307

SpokaneWashington, D.C.

GEG - IAD

GEGIAD

Spokane

Wed 9/30

11:10 am-10:49 pm

1 stop8h 39m

Washington, D.C. Dulles Intl

Thu 10/1

7:10 am-12:20 pm

1 stop8h 10m

$324

PascoWashington, D.C.

PSC - IAD

PSCIAD

Pasco Tri Cities

Mon 7/20

8:48 pm-8:20 am

1 stop8h 32m

Washington, D.C. Dulles Intl

Mon 7/27

9:50 am-7:58 pm

1 stop13h 08m

$367

PortlandWashington, D.C.

PDX - IAD

PDXIAD

Portland

Fri 8/21

6:19 pm-7:50 am

1 stop10h 31m

Washington, D.C. Dulles Intl

Mon 8/24

7:35 pm-9:30 am

1 stop16h 55m

$384

PortlandWashington, D.C.

PDX - IAD

PDXIAD

Portland

Thu 8/6

6:49 pm-5:14 pm

2 stops19h 25m

Washington, D.C. Dulles Intl

Fri 8/14

9:50 am-4:54 pm

1 stop10h 04m

$387

PortlandWashington, D.C.

PDX - IAD

PDXIAD

Portland

Sat 8/22

6:27 am-6:27 pm

1 stop9h 00m

Washington, D.C. Dulles Intl

Wed 8/26

6:09 am-12:48 pm

1 stop9h 39m

$397

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first

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

Prices

Airlines

Other information

What is the cheapest month to fly to Washington, D.C. Dulles Intl Airport?

In general, December 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 $119. If you aren’t able to travel to Washington, D.C. Dulles Intl Airport during the month of December, then flying in February is also cheap. Prices for this month can be found on momondo for an average of $119.

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

Our data shows that Wednesday 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 $445. 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 $611.

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 $352 when looking at flights departing in the afternoon. If you have a flexible travel schedule, then try to avoid flying at noon when prices are $554 on average. Flights to Washington, D.C. Dulles Intl Airport from State of Washington at noon 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 from Washington 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 $433 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 $354 on momondo.

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

There are 4 cabin classes available to choose from on State of Washington to Washington, D.C. Dulles Intl Airport 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 State of Washington to Washington, D.C. Dulles Intl Airport flights?

You could potentially save up to 14% on your flight if you consider stops on a State of Washington to Washington, D.C. Dulles Intl Airport flight.

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	$230
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 $230. 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 $341.

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.

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Frequently asked questions about flying from Washington to Washington, D.C. Dulles Intl Airport

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?
As of June 2026, there are 7 operators available to choose from 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?
momondo data reveals that the most frequently booked plane model on the route from State of Washington to Washington, D.C. Dulles Intl Airport is Boeing 737 MAX 9, representing 19.73% of all bookings. The subsequent popular models are Boeing 737 at 19.73%, Boeing 737-800 Passenger/BBJ2 (winglets) at 18.80%, and Boeing 737 MAX 8 at 17.33%.

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
Frontier	PriceFrom $126	Free Cancellation	Rating 5.6 2,873 reviews	Search Frontier flights
Hawaiian Airlines	PriceFrom $138	Free Cancellation	Rating 7.8 2,827 reviews	Search Hawaiian Airlines flights
Delta	PriceFrom $147	Free Cancellation	Rating 7.8 8,422 reviews	Search Delta flights
United Airlines	PriceFrom $192	Free Cancellation	Rating 7.4 9,874 reviews	Search United Airlines flights
American Airlines	PriceFrom $196	Free Cancellation	Rating 7.1 11,737 reviews	Search American Airlines flights
Alaska Airlines	PriceFrom $237	Free Cancellation	Rating 7.9 12,560 reviews	Search Alaska Airlines flights

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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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Cheap flights from Washington to Washington, D.C. from $148

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 7/28. 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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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

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

Our best Frontier deals on State of Washington to Washington, D.C. Dulles Intl Airport flight tickets

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

What is the cheapest month to fly to Washington, D.C. Dulles Intl Airport?

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

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

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

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

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

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

What is the cheapest airline that flies from Washington to Washington, D.C. Dulles Intl?

What airlines fly to Washington, D.C. Dulles Intl Airport?

How many flights depart from State of Washington to Washington, D.C. Dulles Intl Airport on average per day?

How many flights depart from State of Washington to Washington, D.C. Dulles Intl Airport on average per week?

How long does it take to fly to Washington, D.C. Dulles Intl Airport?

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

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Direct flights

Frequently asked questions about flying from 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

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