How long is the flight from Washington, D.C. to Idaho?

Flight times from Washington, D.C. to Idaho vary, but if you’re flying out of Baltimore and flying into Boise (one of the most popular routes), then the duration is 6h 29m on average. Another popular route from Washington, D.C. to Idaho is flying from Washington, D.C. to Boise, which will take roughly 6h 54m. Keep in mind that layovers or delays could extend your travel time.

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

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

What airlines fly to Idaho?

Delta, United Airlines and Southwest are the top three most popular airlines that fly to Idaho from Washington, D.C. according to our data. Delta is the first choice among our users, with 37% of people opting to fly with this airline when traveling to Idaho. Keep in mind that there are 5 different airlines that fly to Idaho on a routine basis, so you have a few additional options to choose from.

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

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

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

The number of operators available for flights from Washington, D.C. to Idaho is 5 as of December 2025.

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

The minimum age for a child to fly alone is five, but airlines that offer an unaccompanied minor (UNMR) service may have their own age limitations. Flight duration, scheduling, and layovers are among the considerations that may influence age limits. We recommend that you double-check with the airline you are booking with for travel from Washington, D.C. to Idaho.

What documentation or ID do you need to fly to Idaho?

The travel and health documents you'll need for your trip to Idaho 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 Idaho. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.

$78 Cheap Flights from Washington, D.C. to Idaho in 2025/26

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

Round-trip

One-way

Last minute

Direct

Cheap round-trip flights

Enter your travel dates to find the best prices.

6:00 am - 1:25 pm

IAD

JAC

9h 25m1 stop

1:05 pm - 11:46 pm

JAC

IAD

8h 41m1 stop

$274Delta

Tue, Feb 17 - Tue, Feb 24

6:05 am - 4:17 pm

BWI

BOI

12h 12m2 stops

9:15 am - 11:44 pm

BOI

BWI

12h 29m2 stops

$276Delta

Wed, Jan 21 - Tue, Jan 27

2:24 pm - 8:42 pm

IAD

JAC

8h 18m1 stop

2:40 pm - 11:22 pm

JAC

IAD

6h 42m1 stop

$280United Airlines

Mon, Feb 2 - Wed, Feb 4

6:00 am - 1:25 pm

DCA

JAC

9h 25m1 stop

2:35 pm - 11:32 pm

JAC

DCA

6h 57m1 stop

$280Delta

Tue, Feb 17 - Thu, Feb 19

7:14 pm - 10:52 am

BWI

BOI

17h 38m1 stop

6:23 am - 6:14 pm

BOI

BWI

9h 51m1 stop

$283Alaska Airlines

Tue, Jan 20 - Sat, Jan 24

6:00 am - 12:46 pm

BWI

BOI

8h 46m1 stop

3:03 pm - 11:26 pm

BOI

BWI

6h 23m1 stop

$284Delta

Tue, Jan 13 - Tue, Jan 20

5:01 pm - 12:51 pm

DCA

BOI

21h 50m1 stop

6:23 am - 9:59 pm

BOI

DCA

13h 36m1 stop

$287Alaska Airlines

Sat, Jan 17 - Wed, Jan 21

8:23 am - 1:35 pm

BWI

BOI

7h 12m1 stop

7:45 am - 9:26 pm

BOI

BWI

11h 41m2 stops

$289United Airlines

Tue, Jan 13 - Tue, Jan 20

6:07 am - 1:02 pm

BWI

JAC

8h 55m1 stop

1:42 pm - 11:52 pm

JAC

BWI

8h 10m1 stop

$289American Airlines

Thu, Jan 8 - Thu, Jan 15

7:01 am - 6:49 pm

IAD

GEG

14h 48m2 stops

6:00 am - 4:31 pm

GEG

IAD

7h 31m1 stop

$322American Airlines

Wed, Jan 21 - Sat, Jan 24

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

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

Alaska Airlines

Jan 20

BWI7:14 pmBaltimore/Washington

17h 38m

1 stop

BOI10:52 amBoise Air Term. Gowen Fld

Jan 24

BOI6:23 amBoise Air Term. Gowen Fld

9h 51m

1 stop

BWI6:14 pmBaltimore/Washington

$283

Find similar

Alaska Airlines

Jan 17

DCA5:01 pmWashington, D.C. Reagan-National

21h 50m

1 stop

BOI12:51 pmBoise Air Term. Gowen Fld

Jan 21

BOI6:23 amBoise Air Term. Gowen Fld

13h 36m

1 stop

DCA9:59 pmWashington, D.C. Reagan-National

$287

Find similar

Alaska Airlines

Feb 14

IAD7:05 amWashington, D.C. Dulles Intl

18h 54m

1 stop

BOI11:59 pmBoise Air Term. Gowen Fld

Feb 17

BOI6:00 pmBoise Air Term. Gowen Fld

21h 20m

1 stop

IAD5:20 pmWashington, D.C. Dulles Intl

$305

Find similar

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

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

United Airlines

Feb 2

IAD2:24 pmWashington, D.C. Dulles Intl

8h 18m

1 stop

JAC8:42 pmJackson Hole

Feb 4

JAC2:40 pmJackson Hole

6h 42m

1 stop

IAD11:22 pmWashington, D.C. Dulles Intl

$280

Find similar

United Airlines

Jan 10

DCA6:30 amWashington, D.C. Reagan-National

7h 32m

1 stop

SUN12:02 pmHailey Sun Valley-Friedman

Jan 14

SUN12:43 pmHailey Sun Valley-Friedman

7h 54m

1 stop

DCA10:37 pmWashington, D.C. Reagan-National

$289

Find similar

United Airlines

Jan 17

BWI10:05 amBaltimore/Washington

11h 46m

2 stops

BOI7:51 pmBoise Air Term. Gowen Fld

Jan 24

BOI9:48 amBoise Air Term. Gowen Fld

9h 33m

2 stops

BWI9:21 pmBaltimore/Washington

$294

Find similar

Fly from

Fly to

Route

Depart

Return

Price

Washington, D.C.Jackson

IAD - JAC

IADJAC

Washington, D.C. Dulles Intl

Tue 2/17

6:00 am-1:25 pm

1 stop9h 25m

Jackson Hole

Tue 2/24

1:05 pm-11:46 pm

1 stop8h 41m

$274

BaltimoreBoise

BWI - BOI

BWIBOI

Baltimore/Washington

Wed 1/21

6:05 am-4:17 pm

2 stops12h 12m

Boise Air Term. Gowen Fld

Tue 1/27

9:15 am-11:44 pm

2 stops12h 29m

$276

Washington, D.C.Jackson

IAD - JAC

IADJAC

Washington, D.C. Dulles Intl

Mon 2/2

2:24 pm-8:42 pm

1 stop8h 18m

Jackson Hole

Wed 2/4

2:40 pm-11:22 pm

1 stop6h 42m

$280

Washington, D.C.Jackson

DCA - JAC

DCAJAC

Washington, D.C. Reagan-National

Tue 2/17

6:00 am-1:25 pm

1 stop9h 25m

Jackson Hole

Thu 2/19

2:35 pm-11:32 pm

1 stop6h 57m

$280

BaltimoreBoise

BWI - BOI

BWIBOI

Baltimore/Washington

Tue 1/20

7:14 pm-10:52 am

1 stop17h 38m

Boise Air Term. Gowen Fld

Sat 1/24

6:23 am-6:14 pm

1 stop9h 51m

$283

BaltimoreBoise

BWI - BOI

BWIBOI

Baltimore/Washington

Tue 1/13

6:00 am-12:46 pm

1 stop8h 46m

Boise Air Term. Gowen Fld

Tue 1/20

3:03 pm-11:26 pm

1 stop6h 23m

$284

Washington, D.C.Boise

DCA - BOI

DCABOI

Washington, D.C. Reagan-National

Sat 1/17

5:01 pm-12:51 pm

1 stop21h 50m

Boise Air Term. Gowen Fld

Wed 1/21

6:23 am-9:59 pm

1 stop13h 36m

$287

BaltimoreBoise

BWI - BOI

BWIBOI

Baltimore/Washington

Tue 1/13

8:23 am-1:35 pm

1 stop7h 12m

Boise Air Term. Gowen Fld

Tue 1/20

7:45 am-9:26 pm

2 stops11h 41m

$289

BaltimoreJackson

BWI - JAC

BWIJAC

Baltimore/Washington

Thu 1/8

6:07 am-1:02 pm

1 stop8h 55m

Jackson Hole

Thu 1/15

1:42 pm-11:52 pm

1 stop8h 10m

$289

Washington, D.C.Spokane

IAD - GEG

IADGEG

Washington, D.C. Dulles Intl

Wed 1/21

7:01 am-6:49 pm

2 stops14h 48m

Spokane

Sat 1/24

6:00 am-4:31 pm

1 stop7h 31m

$322

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 Washington, D.C. to Idaho

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 Idaho?

In general, April is the cheapest month to fly from Washington, D.C. to Idaho. Due to it being the ‘off-season’ during this time, you can expect flight prices to be around $298. If you don’t want to visit Idaho in April, then you should wait until May to fly from Washington, D.C., when ticket prices are also cheap, with an average price of $300.

What is the cheapest day to depart on your flight to Idaho?

Our data shows that Wednesday is the least expensive day to fly to Idaho. Tickets to fly out on this day can be as low as $434. On the other hand, Monday is the most expensive day to depart from Washington, D.C. because it is more convenient for both business and leisure travelers. As a result, prices tend to be around $711.

What is the cheapest time of day to depart on your flight to Idaho?

According to our data, the cheapest time of day to fly to Idaho is at noon. momondo users have found flights departing from Washington, D.C. to Idaho at noon for as low as $431. Keep in mind that these prices may fluctuate based on what airline you choose and the time of year you plan to travel. In the evening is when there is more demand to fly to Idaho, so prices are often more expensive at around $671 per ticket.

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

You could potentially save up to 19% on your flight if you consider stops on a Washington, D.C. to Idaho flight.

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

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

Fastest flight time	4h 30m
Direct flights	Sun
Airports in Idaho	27 airports

The fastest flight from Washington, D.C. to Idaho takes 4h 30m

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

There are 27 airports in Idaho. From Washington, D.C. there are direct flights to Jackson Hole (JAC).

Search flight deals

When did momondo last update prices for flights from Washington, D.C. to Idaho?
Prices for flights from Washington, D.C. to Idaho were last updated today.
How many operators does momondo search for flights from Washington, D.C. to Idaho?
The number of operators available for flights from Washington, D.C. to Idaho is 5 as of December 2025.
How old do you have to be to fly from Washington, D.C. to Idaho?
The minimum age for a child to fly alone is five, but airlines that offer an unaccompanied minor (UNMR) service may have their own age limitations. Flight duration, scheduling, and layovers are among the considerations that may influence age limits. We recommend that you double-check with the airline you are booking with for travel from Washington, D.C. to Idaho.
What documentation or ID do you need to fly to Idaho?
The travel and health documents you'll need for your trip to Idaho 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 Idaho. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.

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

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

Airline	Rating	Free Cancellation	Price
Alaska Airlines	PriceFrom $182	Free Cancellation	Rating 8.0 11,477 reviews	Search Alaska Airlines flights
Delta	PriceFrom $200	Free Cancellation	Rating 7.9 8,005 reviews	Search Delta flights
United Airlines	PriceFrom $221	Free Cancellation	Rating 7.4 9,091 reviews	Search United Airlines flights
American Airlines	PriceFrom $300	Free Cancellation	Rating 7.2 11,054 reviews	Search American Airlines flights
Southwest	PriceFrom $346	Free Cancellation	Rating 7.9 4,250 reviews	Search Southwest flights

Why use momondo?

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

Finding the right flight to Idaho from Washington, D.C. 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 Idaho quick and easy, saving you time and money.

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

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

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

Once all potential Washington, D.C. to Idaho flight options are in front of you, momondo lets you sort and filter flights based on preferences such as airline, price and flight times amongst many other options.

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

Of course. momondo tracks the price of Washington, D.C. to Idaho flights. All you need is a valid email address and we will do the rest; it is that quick and easy.