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

Flight times from Idaho to Washington, D.C. Dulles Intl Airport vary, but if you’re flying out of Boise and flying into Washington, D.C. Dulles Intl Airport (one of the most popular routes), then the duration is 6h 09m on average. Another popular route from Idaho to Washington, D.C. Dulles Intl Airport is flying from Idaho Falls to Washington, D.C. Dulles Intl Airport, which will take roughly 6h 30m. Keep in mind that layovers or delays could extend your travel time.

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

United Airlines, Alaska Airlines and Delta are the top three most popular airlines that fly to Washington, D.C. Dulles Intl Airport from Idaho according to our data. United Airlines is the first choice among our users, with 56% of people opting to fly with this airline when traveling to Washington, D.C. Dulles Intl Airport. Keep in mind that there are 4 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 Idaho to Washington, D.C. Dulles Intl?

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

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

The number of operators available for flights from Idaho to Washington, D.C. Dulles Intl Airport is 4 as of April 2026.

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

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

The required travel and health documents for your Washington, D.C. Dulles Intl Airport 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, D.C. Dulles Intl Airport. We recommend that you seek guidance from your airline or a reliable third party such as IATA.

$132 Cheap Flights from Idaho to Washington, D.C. Dulles Intl Airport in 2026

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

Round-trip

One-way

Last minute

Cheap round-trip flights

Enter your travel dates to find the best prices.

11:39 pm - 9:16 am

BOI

IAD

7h 37m

1 stop

7:00 am - 2:41 pm

IAD

BOI

9h 41m

1 stop

$263Delta

Wed, May 27 - Tue, Jun 2

1:52 pm - 11:55 pm

BOI

IAD

8h 03m

1 stop

6:00 am - 2:26 pm

IAD

BOI

10h 26m

2 stops

$268Delta

Thu, Apr 30 - Wed, May 6

8:40 pm - 10:18 am

BOI

IAD

11h 38m

2 stops

12:37 pm - 11:10 pm

IAD

BOI

12h 33m

2 stops

$273Delta

Thu, Apr 30 - Wed, May 6

1:26 pm - 11:32 pm

GEG

IAD

7h 06m

1 stop

6:00 am - 11:40 am

IAD

GEG

8h 40m

1 stop

$275Delta

Sat, Jun 6 - Tue, Jun 9

12:10 pm - 10:47 pm

BOI

IAD

8h 37m

1 stop

6:24 am - 2:02 pm

IAD

BOI

9h 38m

1 stop

$280American Airlines

Sat, Sep 19 - Tue, Sep 22

5:11 pm - 8:38 am

BOI

IAD

13h 27m

2 stops

2:46 pm - 10:17 pm

IAD

BOI

9h 31m

1 stop

$286American Airlines

Tue, Sep 22 - Tue, Sep 29

6:30 am - 3:45 pm

BOI

IAD

7h 15m

1 stop

5:15 pm - 11:05 pm

IAD

BOI

7h 50m

1 stop

$293United Airlines

Wed, Sep 23 - Mon, Sep 28

8:38 pm - 7:34 am

GEG

IAD

7h 56m

1 stop

6:00 am - 1:04 pm

IAD

GEG

10h 04m

1 stop

$305Alaska Airlines

Wed, May 27 - Sun, May 31

4:10 pm - 12:45 am

IDA

IAD

6h 35m

1 stop

6:30 am - 1:25 pm

IAD

IDA

8h 55m

1 stop

$349United Airlines

Tue, Jun 30 - Tue, Jul 7

4:03 pm - 4:35 pm

IDA

IAD

22h 32m

2 stops

6:00 am - 3:26 pm

IAD

IDA

11h 26m

1 stop

$391Alaska Airlines

Sat, May 23 - Sat, May 30

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

Our best American Airlines deals on Idaho to Washington, D.C. Dulles Intl Airport flight tickets

American Airlines

Sep 19

BOI12:10 pmBoise Air Term. Gowen Fld

8h 37m

1 stop

IAD10:47 pmWashington, D.C. Dulles Intl

Sep 22

IAD6:24 amWashington, D.C. Dulles Intl

9h 38m

1 stop

BOI2:02 pmBoise Air Term. Gowen Fld

$280

American Airlines

Sep 22

BOI5:11 pmBoise Air Term. Gowen Fld

13h 27m

2 stops

IAD8:38 amWashington, D.C. Dulles Intl

Sep 29

IAD2:46 pmWashington, D.C. Dulles Intl

9h 31m

1 stop

BOI10:17 pmBoise Air Term. Gowen Fld

$286

American Airlines

Sep 22

BOI5:11 pmBoise Air Term. Gowen Fld

13h 27m

2 stops

IAD8:38 amWashington, D.C. Dulles Intl

Sep 29

IAD6:58 amWashington, D.C. Dulles Intl

11h 52m

2 stops

BOI4:50 pmBoise Air Term. Gowen Fld

$290

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

Our best United Airlines deals on Idaho to Washington, D.C. Dulles Intl Airport flight tickets

United Airlines

Sep 23

BOI6:30 amBoise Air Term. Gowen Fld

7h 15m

1 stop

IAD3:45 pmWashington, D.C. Dulles Intl

Sep 28

IAD5:15 pmWashington, D.C. Dulles Intl

7h 50m

1 stop

BOI11:05 pmBoise Air Term. Gowen Fld

$293

United Airlines

Jul 9

GEG1:41 pmSpokane

8h 04m

1 stop

IAD12:45 amWashington, D.C. Dulles Intl

Jul 11

IAD6:30 amWashington, D.C. Dulles Intl

8h 00m

1 stop

GEG11:30 amSpokane

$316

United Airlines

May 21

BOI2:40 pmBoise Air Term. Gowen Fld

8h 05m

1 stop

IAD12:45 amWashington, D.C. Dulles Intl

May 24

IAD6:30 amWashington, D.C. Dulles Intl

8h 38m

1 stop

BOI1:08 pmBoise Air Term. Gowen Fld

$331

momondo Fare Finder

Use the filters below to find and compare flights from Idaho to Washington, D.C. Dulles Intl Airport that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

BoiseWashington, D.C.

BOI - IAD

BOIIAD

Boise Air Term. Gowen Fld

Wed 5/27

11:39 pm-9:16 am

1 stop7h 37m

Washington, D.C. Dulles Intl

Tue 6/2

7:00 am-2:41 pm

1 stop9h 41m

$263

BoiseWashington, D.C.

BOI - IAD

BOIIAD

Boise Air Term. Gowen Fld

Thu 4/30

1:52 pm-11:55 pm

1 stop8h 03m

Washington, D.C. Dulles Intl

Wed 5/6

6:00 am-2:26 pm

2 stops10h 26m

$268

BoiseWashington, D.C.

BOI - IAD

BOIIAD

Boise Air Term. Gowen Fld

Thu 4/30

8:40 pm-10:18 am

2 stops11h 38m

Washington, D.C. Dulles Intl

Wed 5/6

12:37 pm-11:10 pm

2 stops12h 33m

$273

SpokaneWashington, D.C.

GEG - IAD

GEGIAD

Spokane

Sat 6/6

1:26 pm-11:32 pm

1 stop7h 06m

Washington, D.C. Dulles Intl

Tue 6/9

6:00 am-11:40 am

1 stop8h 40m

$275

BoiseWashington, D.C.

BOI - IAD

BOIIAD

Boise Air Term. Gowen Fld

Sat 9/19

12:10 pm-10:47 pm

1 stop8h 37m

Washington, D.C. Dulles Intl

Tue 9/22

6:24 am-2:02 pm

1 stop9h 38m

$280

BoiseWashington, D.C.

BOI - IAD

BOIIAD

Boise Air Term. Gowen Fld

Tue 9/22

5:11 pm-8:38 am

2 stops13h 27m

Washington, D.C. Dulles Intl

Tue 9/29

2:46 pm-10:17 pm

1 stop9h 31m

$286

Quickest round-trip

BoiseWashington, D.C.

BOI - IAD

BOIIAD

Boise Air Term. Gowen Fld

Wed 9/23

6:30 am-3:45 pm

1 stop7h 15m

Washington, D.C. Dulles Intl

Mon 9/28

5:15 pm-11:05 pm

1 stop7h 50m

$293

SpokaneWashington, D.C.

GEG - IAD

GEGIAD

Spokane

Wed 5/27

8:38 pm-7:34 am

1 stop7h 56m

Washington, D.C. Dulles Intl

Sun 5/31

6:00 am-1:04 pm

1 stop10h 04m

$305

Idaho FallsWashington, D.C.

IDA - IAD

IDAIAD

Idaho Falls Fanning Field

Tue 6/30

4:10 pm-12:45 am

1 stop6h 35m

Washington, D.C. Dulles Intl

Tue 7/7

6:30 am-1:25 pm

1 stop8h 55m

$349

Idaho FallsWashington, D.C.

IDA - IAD

IDAIAD

Idaho Falls Fanning Field

Sat 5/23

4:03 pm-4:35 pm

2 stops22h 32m

Washington, D.C. Dulles Intl

Sat 5/30

6:00 am-3:26 pm

1 stop11h 26m

$391

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 Idaho 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, May is the cheapest month to fly from Idaho 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 $300. If you aren’t able to travel to Washington, D.C. Dulles Intl Airport during the month of May, then flying in April is also cheap. Prices for this month can be found on momondo for an average of $370.

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

You could potentially save up to 69% on your flight if you consider stops on a Idaho to Washington, D.C. Dulles Intl Airport flight.

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

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

Fastest flight time	6h 09m
Direct flights	None

The fastest flight from Idaho to Washington, D.C. Dulles Intl Airport takes 6h 09m

There are no direct flights from Idaho to Washington, D.C. Dulles Intl Airport. There are no popular flight routes from Idaho to Washington, D.C. Dulles Intl Airport.

Search flight deals

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

When did momondo last update prices for flights from Idaho to Washington, D.C. Dulles Intl Airport?
Prices for flights from Idaho to Washington, D.C. Dulles Intl Airport are updated daily.
How many operators does momondo search for flights from Idaho to Washington, D.C. Dulles Intl Airport?
The number of operators available for flights from Idaho to Washington, D.C. Dulles Intl Airport is 4 as of April 2026.
How old do you have to be to fly from Idaho 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 Idaho to Washington, D.C. Dulles Intl Airport.
What documentation or ID do you need to fly to Washington, D.C. Dulles Intl Airport?
The required travel and health documents for your Washington, D.C. Dulles Intl Airport 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, D.C. Dulles Intl Airport. We recommend that you seek guidance from your airline or a reliable third party such as IATA.

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

Compare and see reviews for airlines that fly from Idaho to Washington, D.C. Dulles Intl Airport with momondo

Airline	Rating	Free Cancellation	Price
Alaska Airlines	PriceFrom $141	Free Cancellation	Rating 7.9 12,211 reviews	Search Alaska Airlines flights
Delta	PriceFrom $232	Free Cancellation	Rating 7.9 8,406 reviews	Search Delta flights
United Airlines	PriceFrom $300	Free Cancellation	Rating 7.4 9,569 reviews	Search United Airlines flights
Southwest	PriceFrom $340	Free Cancellation	Rating 8.0 4,335 reviews	Search Southwest flights

Alexandria

National Harbor

Gettysburg

Arlington

Winchester

Waldorf

Woodbridge

Laurel

Colonial Beach

Gaithersburg

Towson

Silver Spring

Fredericksburg

Rockville

Manassas

Sterling

Tysons

Linthicum Heights

Bethesda

Fairfax

Why use momondo?

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

Finding the right flight to Washington, D.C. from Idaho is quick and easy when you have a range of options in front of you, from reputable agents and recognisable airlines. Options that can then be filtered down to find the best fit. That is what momondo does. We make finding flights to Washington, D.C. quick and easy, saving you time and money.

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

Yes. All flights to Washington, D.C. from Idaho on momondo can be compared and filtered by various policies on offer, including flexible booking.

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

momondo offers useful filters to help you find the right flight. Choose specific flight times, airports or even what payment method you prefer. We have numerous options to help you book your ideal flight from Idaho to Washington, D.C..

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

Yes momondo offers price alerts on flights to Washington, D.C. from Idaho. After performing a search on this page you should be able to see the price alert set up feature. Simply provide a valid email address and momondo will instantly alert you when prices change.

An easier way to manage your Washington, D.C. Dulles Intl Airport trip

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Cheap flights from Idaho to Washington, D.C. from $132

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Idaho to Washington, D.C. departing on 7/14. 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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American Airlines flights from Idaho to Washington, D.C. Dulles Intl Airport

Our best American Airlines deals on Idaho to Washington, D.C. Dulles Intl Airport flight tickets

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

Our best United Airlines deals on Idaho to Washington, D.C. Dulles Intl Airport flight tickets

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See travel insights to Washington, D.C. from

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

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

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

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

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

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

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

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

Fastest flight time

Direct flights

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

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

Compare and see reviews for airlines that fly from Idaho to Washington, D.C. Dulles Intl Airport with momondo

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

Why use momondo?

An easier way to manage your Washington, D.C. Dulles Intl Airport trip

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