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

Flight times from Idaho to Washington, D.C. vary, but if you’re flying out of Twin Falls and flying into Washington, D.C. Dulles Intl Airport (one of the most popular routes), then the duration is 6h 10m on average. Another popular route from Idaho to Washington, D.C. is flying from Hailey to Washington, D.C. Dulles Intl Airport, which will take roughly 6h 21m. Keep in mind that layovers or delays could extend your travel time.

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

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

What airlines fly to Washington, D.C.?

United Airlines, Delta and Southwest are the top three most popular airlines that fly to Washington, D.C. from Idaho according to our data. United Airlines is the first choice among our users, with 41% of people opting to fly with this airline when traveling to Washington, D.C.. Keep in mind that there are 6 different airlines that fly to Washington, D.C. on a routine basis, so you have a few additional options to choose from.

When did momondo last update prices for flights from Idaho to Washington, D.C.?

Prices for flights from Idaho to Washington, D.C. were last updated today.

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

As of May 2026, there are 6 operators available to choose from for flights from Idaho to Washington, D.C..

How old do you have to be to fly from Idaho to Washington, D.C.?

The minimum age for a child to fly alone is five, but airlines offering an unaccompanied minor (UNMR) service may have their age restrictions, such as regulations concerning flight duration, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Idaho to Washington, D.C..

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

The necessary travel and health documents for your Washington, D.C. trip may vary depending on your travel plans and individual circumstances. Generally, you should have various documents, such as a national ID card or driver's license and a passport that is valid for six months beyond your scheduled arrival date. We recommend seeking advice from your airline or a trusted third party, such as IATA.

$116 Cheap Flights from Idaho to Washington, D.C. in 2026

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

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One-way

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Enter your travel dates to find the best prices.

4:23 pm - 12:45 am

JAC

IAD

6h 22m

1 stop

1:15 pm - 6:42 pm

IAD

JAC

7h 27m

1 stop

$241United Airlines

Fri, May 29 - Tue, Jun 2

1:04 pm - 9:59 pm

BOI

DCA

6h 55m

1 stop

7:00 am - 12:09 pm

DCA

BOI

7h 09m

1 stop

$244Frontier

Thu, Aug 20 - Sun, Aug 23

1:43 pm - 12:10 am

BOI

IAD

8h 27m

1 stop

6:40 pm - 11:29 pm

IAD

BOI

6h 49m

1 stop

$263Delta

Sat, Sep 19 - Tue, Sep 22

5:40 am - 1:55 pm

BOI

BWI

6h 15m

1 stop

6:19 am - 2:03 pm

BWI

BOI

9h 44m

1 stop

$263Delta

Sat, Sep 19 - Tue, Sep 22

1:18 pm - 11:59 pm

BOI

DCA

8h 41m

1 stop

5:00 am - 11:26 am

DCA

BOI

8h 26m

1 stop

$263American Airlines

Sat, Sep 19 - Tue, Sep 22

5:11 pm - 8:38 am

BOI

IAD

13h 27m

2 stops

6:58 am - 4:50 pm

IAD

BOI

11h 52m

2 stops

$273American Airlines

Tue, Sep 22 - Tue, Sep 29

6:55 am - 11:25 pm

GEG

BWI

13h 30m

1 stop

5:40 pm - 10:55 pm

BWI

GEG

8h 15m

1 stop

$314Southwest

Thu, Aug 6 - Tue, Aug 11

6:55 am - 11:25 pm

GEG

BWI

13h 30m

2 stops

5:40 pm - 10:55 pm

BWI

GEG

8h 15m

1 stop

$320Southwest

Thu, Aug 6 - Tue, Aug 11

5:09 am - 3:34 pm

GEG

BWI

7h 25m

1 stop

4:34 pm - 11:14 pm

BWI

GEG

9h 40m

1 stop

$323Alaska Airlines

Tue, Sep 29 - Wed, Sep 30

5:09 am - 3:34 pm

GEG

BWI

7h 25m

1 stop

7:50 am - 12:39 pm

BWI

GEG

7h 49m

1 stop

$337Alaska Airlines

Sat, Sep 12 - Fri, Sep 18

United Airlines flights from Idaho to Washington, D.C.

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

United Airlines

May 29

JAC4:23 pmJackson Hole

6h 22m

1 stop

IAD12:45 amWashington, D.C. Dulles Intl

Jun 2

IAD1:15 pmWashington, D.C. Dulles Intl

7h 27m

1 stop

JAC6:42 pmJackson Hole

$241

United Airlines

May 29

JAC7:30 amJackson Hole

7h 42m

1 stop

DCA5:12 pmWashington, D.C. Reagan-National

Jun 2

DCA2:00 pmWashington, D.C. Reagan-National

6h 42m

1 stop

JAC6:42 pmJackson Hole

$267

United Airlines

Jun 6

GEG1:41 pmSpokane

6h 51m

1 stop

IAD11:32 pmWashington, D.C. Dulles Intl

Jun 9

IAD6:10 amWashington, D.C. Dulles Intl

8h 40m

1 stop

GEG11:50 amSpokane

$305

Delta flights from Idaho to Washington, D.C.

Our best Delta deals on Idaho to Washington, D.C. flight tickets

Delta

Sep 19

BOI1:43 pmBoise Air Term. Gowen Fld

8h 27m

1 stop

IAD12:10 amWashington, D.C. Dulles Intl

Sep 22

IAD6:40 pmWashington, D.C. Dulles Intl

6h 49m

1 stop

BOI11:29 pmBoise Air Term. Gowen Fld

$263

Delta

Jul 14

GEG10:48 pmSpokane

7h 38m

1 stop

IAD9:26 amWashington, D.C. Dulles Intl

Jul 21

IAD6:00 amWashington, D.C. Dulles Intl

8h 40m

1 stop

GEG11:40 amSpokane

$275

Delta

Jul 4

BOI2:50 pmBoise Air Term. Gowen Fld

6h 23m

1 stop

BWI11:13 pmBaltimore/Washington

Jul 8

BWI5:40 amBaltimore/Washington

9h 13m

1 stop

BOI12:53 pmBoise Air Term. Gowen Fld

$278

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

Quickest round-trip

JacksonWashington, D.C.

JAC - IAD

JACIAD

Jackson Hole

Fri 5/29

4:23 pm-12:45 am

1 stop6h 22m

Washington, D.C. Dulles Intl

Tue 6/2

1:15 pm-6:42 pm

1 stop7h 27m

$241

BoiseWashington, D.C.

BOI - DCA

BOIDCA

Boise Air Term. Gowen Fld

Thu 8/20

1:04 pm-9:59 pm

1 stop6h 55m

Washington, D.C. Reagan-National

Sun 8/23

7:00 am-12:09 pm

1 stop7h 09m

$244

BoiseWashington, D.C.

BOI - IAD

BOIIAD

Boise Air Term. Gowen Fld

Sat 9/19

1:43 pm-12:10 am

1 stop8h 27m

Washington, D.C. Dulles Intl

Tue 9/22

6:40 pm-11:29 pm

1 stop6h 49m

$263

BoiseBaltimore

BOI - BWI

BOIBWI

Boise Air Term. Gowen Fld

Sat 9/19

5:40 am-1:55 pm

1 stop6h 15m

Baltimore/Washington

Tue 9/22

6:19 am-2:03 pm

1 stop9h 44m

$263

BoiseWashington, D.C.

BOI - DCA

BOIDCA

Boise Air Term. Gowen Fld

Sat 9/19

1:18 pm-11:59 pm

1 stop8h 41m

Washington, D.C. Reagan-National

Tue 9/22

5:00 am-11:26 am

1 stop8h 26m

$263

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

6:58 am-4:50 pm

2 stops11h 52m

$273

SpokaneBaltimore

GEG - BWI

GEGBWI

Spokane

Thu 8/6

6:55 am-11:25 pm

1 stop13h 30m

Baltimore/Washington

Tue 8/11

5:40 pm-10:55 pm

1 stop8h 15m

$314

SpokaneBaltimore

GEG - BWI

GEGBWI

Spokane

Thu 8/6

6:55 am-11:25 pm

2 stops13h 30m

Baltimore/Washington

Tue 8/11

5:40 pm-10:55 pm

1 stop8h 15m

$320

SpokaneBaltimore

GEG - BWI

GEGBWI

Spokane

Tue 9/29

5:09 am-3:34 pm

1 stop7h 25m

Baltimore/Washington

Wed 9/30

4:34 pm-11:14 pm

1 stop9h 40m

$323

SpokaneBaltimore

GEG - BWI

GEGBWI

Spokane

Sat 9/12

5:09 am-3:34 pm

1 stop7h 25m

Baltimore/Washington

Fri 9/18

7:50 am-12:39 pm

1 stop7h 49m

$337

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.

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.?

The month of May is, on average, the cheapest month to fly to Washington, D.C. from Idaho, with most prices found around $78. If you’re not able to fly to Washington, D.C. in May, then October is your next best option. Flight prices from Idaho to Washington, D.C. during October average around $120.

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

You could potentially save up to 67% on your flight if you consider stops on a Idaho to Washington, D.C. flight.

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

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

Fastest flight time	5h 56m
Direct flights	Mon
Airports in Washington, D.C.	2 airports

The fastest flight from Idaho to Washington, D.C. takes 5h 56m

Direct flights go from Idaho to Washington, D.C. on Monday. There are no airlines offering direct flights.

There are 2 airports in Washington, D.C.. From Idaho there are direct flights to Washington, D.C. Dulles Intl (IAD).

Search flight deals

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

When did momondo last update prices for flights from Idaho to Washington, D.C.?
Prices for flights from Idaho to Washington, D.C. were last updated today.
How many operators does momondo search for flights from Idaho to Washington, D.C.?
As of May 2026, there are 6 operators available to choose from for flights from Idaho to Washington, D.C..
How old do you have to be to fly from Idaho to Washington, D.C.?
The minimum age for a child to fly alone is five, but airlines offering an unaccompanied minor (UNMR) service may have their age restrictions, such as regulations concerning flight duration, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Idaho to Washington, D.C..
What documentation or ID do you need to fly to Washington, D.C.?
The necessary travel and health documents for your Washington, D.C. trip may vary depending on your travel plans and individual circumstances. Generally, you should have various documents, such as a national ID card or driver's license and a passport that is valid for six months beyond your scheduled arrival date. We recommend seeking advice from your airline or a trusted third party, such as IATA.

Best airlines flying from Idaho to Washington, D.C.

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

Airline	Rating	Free Cancellation	Price
Frontier	PriceFrom $78	Free Cancellation	Rating 5.6 2,950 reviews	Search Frontier flights
Delta	PriceFrom $222	Free Cancellation	Rating 7.9 8,454 reviews	Search Delta flights
Alaska Airlines	PriceFrom $245	Free Cancellation	Rating 7.9 12,373 reviews	Search Alaska Airlines flights
American Airlines	PriceFrom $277	Free Cancellation	Rating 7.1 11,662 reviews	Search American Airlines flights
United Airlines	PriceFrom $278	Free Cancellation	Rating 7.4 9,730 reviews	Search United Airlines flights
Southwest	PriceFrom $340	Free Cancellation	Rating 8.0 4,294 reviews	Search Southwest flights

Alexandria

National Harbor

Gettysburg

Arlington

Waldorf

Woodbridge

Laurel

Gaithersburg

Colonial Beach

Fredericksburg

Silver Spring

Towson

Rockville

Manassas

Linthicum Heights

Tysons

Bethesda

Springfield

Fairfax

College Park

Why use momondo?

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

We help find the flight that best suits your needs, momondo compares prices from hundreds of airlines and travel agents and helps you filter them to find the best flight from Idaho to Washington, D.C. for you.

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

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

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

momondo helps you find the best flight between Idaho and Washington, D.C. by providing filters to narrow your choice of flights to those matching your criteria. You can select flights based on numerous factors such as price, departure and landing times, airport and airline.

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. trip

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Fly into one of these airports located in Washington, D.C.

Washington, D.C. Reagan-National Airport

Washington, D.C. Dulles Intl Airport

Cheap flights from Idaho to Washington, D.C. from $116

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 6/17. 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 Idaho to Washington, D.C.

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

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Our best Delta deals on Idaho to Washington, D.C. flight tickets

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

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

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

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

What airlines fly to Washington, D.C.?

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

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

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

Fastest flight time

Direct flights

Airports in Washington, D.C.

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

Best airlines flying from Idaho to Washington, D.C.

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

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

Why use momondo?

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

We make it super easy to schedule, organize and travel with friends or family. Trips is free — and available to use no matter where you book.

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Daily price changes in your inbox - only with Price Alerts.

Find better results for your trip to the United States

Fly into one of these airports located in Washington, D.C.

Airports listed have a maximum distance of 22.4 mi from Washington, D.C.

Fly your favorite airline to Washington, D.C.

Airlines are sorted and displayed according to clicks in the past 7 days on momondo

Cabin classes currently available on flights to Washington, D.C.

List of cabin classes available on flights landing in Washington, D.C.. Availability may vary depending on flight origin and airline.

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