What is the cheapest airline that flies from District of Columbia to Idaho?

Delta, United Airlines, and American Airlines are the most popular carriers operating from District of Columbia to Idaho

What airlines fly to Idaho?

United Airlines, Delta and Southwest are the top three most popular airlines that fly to Idaho from District of Columbia according to our data. United Airlines is the first choice among our users, with 36% 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 District of Columbia to Idaho?

Prices for flights from District of Columbia to Idaho are refreshed on a daily basis.

How many operators does momondo search for flights from District of Columbia to Idaho?

As of February 2026, there are 5 operators available to choose from for flights from District of Columbia to Idaho.

How old do you have to be to fly from District of Columbia to Idaho?

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 District of Columbia to Idaho.

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

The travel and health documents required for your trip to Idaho can vary based on your itinerary and personal situation. As a rule, consider having multiple documents such as a national ID card or driver’s license, and a passport valid for six-months after you plan to arrive at Idaho. We always recommend checking with your airline or a trusted third party such as IATA to get advice.

$117 Cheap Flights from District of Columbia to Idaho in 2026

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Find the cheapest flights from District of Columbia to Idaho

Round-trip

One-way

Last minute

Direct

Cheap round-trip flights

Enter your travel dates to find the best prices.

7:00 am - 1:12 pm

IAD

BOI

8h 12m

1 stop

1:52 pm - 11:55 pm

BOI

IAD

8h 03m

1 stop

$223Delta

Tue, Apr 14 - Tue, Apr 21

7:10 am - 1:52 pm

IAD

BOI

8h 42m

1 stop

7:20 pm - 5:50 am

BOI

IAD

8h 30m

1 stop

$225Alaska Airlines

Wed, Apr 22 - Mon, May 4

7:00 am - 9:24 pm

IAD

BOI

16h 24m

1 stop

8:59 am - 11:55 pm

BOI

IAD

12h 56m

1 stop

$226Delta

Tue, Apr 21 - Fri, May 1

7:00 am - 1:12 pm

IAD

BOI

8h 12m

1 stop

12:15 pm - 12:15 am

BOI

IAD

10h 00m

1 stop

$227Delta

Tue, Apr 28 - Thu, May 7

2:12 pm - 9:24 pm

IAD

SUN

9h 12m

1 stop

2:24 pm - 11:34 pm

SUN

IAD

7h 10m

1 stop

$237United Airlines

Wed, Mar 25 - Tue, Mar 31

8:00 am - 11:51 am

DCA

BOI

29h 51m

1 stop

12:15 pm - 1:02 pm

BOI

DCA

22h 47m

1 stop

$300Frontier

Wed, Mar 4 - Sun, Mar 8

4:00 pm - 9:24 pm

IAD

SUN

7h 24m

1 stop

12:25 pm - 9:04 pm

SUN

IAD

6h 39m

1 stop

$309United Airlines

Tue, Mar 17 - Tue, Mar 31

6:00 am - 12:54 pm

DCA

SUN

8h 54m

1 stop

7:40 am - 8:59 pm

SUN

DCA

11h 19m

2 stops

$314American Airlines

Tue, Mar 17 - Tue, Mar 31

5:00 am - 12:54 pm

IAD

SUN

9h 54m

2 stops

7:40 am - 8:29 pm

SUN

IAD

10h 49m

2 stops

$319American Airlines

Tue, Mar 17 - Tue, Mar 31

9:59 am - 11:02 pm

DCA

BOI

15h 03m

1 stop

11:53 am - 1:00 pm

BOI

DCA

23h 07m

1 stop

$365Multiple Airlines

Thu, Apr 16 - Sun, Apr 19

Delta flights from District of Columbia to Idaho

Our best Delta deals on District of Columbia to Idaho flight tickets

Delta

Apr 14

IAD7:00 amWashington, D.C. Dulles Intl

8h 12m

1 stop

BOI1:12 pmBoise Air Term. Gowen Fld

Apr 21

BOI1:52 pmBoise Air Term. Gowen Fld

8h 03m

1 stop

IAD11:55 pmWashington, D.C. Dulles Intl

$223

Delta

Apr 21

IAD7:00 amWashington, D.C. Dulles Intl

16h 24m

1 stop

BOI9:24 pmBoise Air Term. Gowen Fld

May 1

BOI8:59 amBoise Air Term. Gowen Fld

12h 56m

1 stop

IAD11:55 pmWashington, D.C. Dulles Intl

$226

Delta

Apr 28

IAD7:00 amWashington, D.C. Dulles Intl

8h 12m

1 stop

BOI1:12 pmBoise Air Term. Gowen Fld

May 7

BOI12:15 pmBoise Air Term. Gowen Fld

10h 00m

1 stop

IAD12:15 amWashington, D.C. Dulles Intl

$227

Frontier flights from District of Columbia to Idaho

Our best Frontier deals on District of Columbia to Idaho flight tickets

Frontier

Mar 4

DCA8:00 amWashington, D.C. Reagan-National

29h 51m

1 stop

BOI11:51 amBoise Air Term. Gowen Fld

Mar 8

BOI12:15 pmBoise Air Term. Gowen Fld

22h 47m

1 stop

DCA1:02 pmWashington, D.C. Reagan-National

$300

Frontier

Feb 28

DCA8:00 amWashington, D.C. Reagan-National

29h 11m

1 stop

BOI11:11 amBoise Air Term. Gowen Fld

Mar 8

BOI12:15 pmBoise Air Term. Gowen Fld

22h 47m

1 stop

DCA1:02 pmWashington, D.C. Reagan-National

$454

Frontier

Mar 4

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

23h 51m

1 stop

BOI11:51 amBoise Air Term. Gowen Fld

Mar 8

BOI12:15 pmBoise Air Term. Gowen Fld

22h 47m

1 stop

DCA1:02 pmWashington, D.C. Reagan-National

$484

momondo Fare Finder

Use the filters below to find and compare flights from District of Columbia to Idaho that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Washington, D.C.Boise

IAD - BOI

IADBOI

Washington, D.C. Dulles Intl

Tue 4/14

7:00 am-1:12 pm

1 stop8h 12m

Boise Air Term. Gowen Fld

Tue 4/21

1:52 pm-11:55 pm

1 stop8h 03m

$223

Washington, D.C.Boise

IAD - BOI

IADBOI

Washington, D.C. Dulles Intl

Wed 4/22

7:10 am-1:52 pm

1 stop8h 42m

Boise Air Term. Gowen Fld

Mon 5/4

7:20 pm-5:50 am

1 stop8h 30m

$225

Washington, D.C.Boise

IAD - BOI

IADBOI

Washington, D.C. Dulles Intl

Tue 4/21

7:00 am-9:24 pm

1 stop16h 24m

Boise Air Term. Gowen Fld

Fri 5/1

8:59 am-11:55 pm

1 stop12h 56m

$226

Washington, D.C.Boise

IAD - BOI

IADBOI

Washington, D.C. Dulles Intl

Tue 4/28

7:00 am-1:12 pm

1 stop8h 12m

Boise Air Term. Gowen Fld

Thu 5/7

12:15 pm-12:15 am

1 stop10h 00m

$227

Washington, D.C.Hailey

IAD - SUN

IADSUN

Washington, D.C. Dulles Intl

Wed 3/25

2:12 pm-9:24 pm

1 stop9h 12m

Hailey Sun Valley-Friedman

Tue 3/31

2:24 pm-11:34 pm

1 stop7h 10m

$237

Washington, D.C.Boise

DCA - BOI

DCABOI

Washington, D.C. Reagan-National

Wed 3/4

8:00 am-11:51 am

1 stop29h 51m

Boise Air Term. Gowen Fld

Sun 3/8

12:15 pm-1:02 pm

1 stop22h 47m

$300

Washington, D.C.Hailey

IAD - SUN

IADSUN

Washington, D.C. Dulles Intl

Tue 3/17

4:00 pm-9:24 pm

1 stop7h 24m

Hailey Sun Valley-Friedman

Tue 3/31

12:25 pm-9:04 pm

1 stop6h 39m

$309

Washington, D.C.Hailey

DCA - SUN

DCASUN

Washington, D.C. Reagan-National

Tue 3/17

6:00 am-12:54 pm

1 stop8h 54m

Hailey Sun Valley-Friedman

Tue 3/31

7:40 am-8:59 pm

2 stops11h 19m

$314

Washington, D.C.Hailey

IAD - SUN

IADSUN

Washington, D.C. Dulles Intl

Tue 3/17

5:00 am-12:54 pm

2 stops9h 54m

Hailey Sun Valley-Friedman

Tue 3/31

7:40 am-8:29 pm

2 stops10h 49m

$319

Washington, D.C.Boise

DCA - BOI

DCABOI

Washington, D.C. Reagan-National

Thu 4/16

9:59 am-11:02 pm

1 stop15h 03m

Boise Air Term. Gowen Fld

Sun 4/19

11:53 am-1:00 pm

1 stop23h 07m

$365

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 District of Columbia 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

What is the cheapest month to fly to Idaho?

In general, April is the cheapest month to fly from District of Columbia 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 District of Columbia, when ticket prices are also cheap, with an average price of $300.

Can stopping save me money on District of Columbia to Idaho flights?

You could potentially save up to 75% on your flight if you consider stops on a District of Columbia to Idaho flight.

Cheap District of Columbia to Idaho flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from District of Columbia to Idaho

Fastest flight time	4h 40m
Direct flights	Sun
Airports in Idaho	27 airports

The fastest flight from District of Columbia to Idaho takes 4h 40m

Direct flights go from District of Columbia to Idaho on Sunday. There are no airlines offering direct flights.

There are 27 airports in Idaho. From District of Columbia there are direct flights to Jackson Hole (JAC).

Search flight deals

When did momondo last update prices for flights from District of Columbia to Idaho?
Prices for flights from District of Columbia to Idaho are refreshed on a daily basis.
How many operators does momondo search for flights from District of Columbia to Idaho?
As of February 2026, there are 5 operators available to choose from for flights from District of Columbia to Idaho.
How old do you have to be to fly from District of Columbia to Idaho?
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 District of Columbia to Idaho.
What documentation or ID do you need to fly to Idaho?
The travel and health documents required for your trip to Idaho can vary based on your itinerary and personal situation. As a rule, consider having multiple documents such as a national ID card or driver’s license, and a passport valid for six-months after you plan to arrive at Idaho. We always recommend checking with your airline or a trusted third party such as IATA to get advice.

Best airlines flying from District of Columbia to Idaho

Compare and see reviews for airlines that fly from District of Columbia to Idaho with momondo

Airline	Rating	Free Cancellation	Price
Delta	PriceFrom $150	Free Cancellation	Rating 7.9 8,237 reviews	Search Delta flights
Alaska Airlines	PriceFrom $182	Free Cancellation	Rating 8.0 11,959 reviews	Search Alaska Airlines flights
United Airlines	PriceFrom $221	Free Cancellation	Rating 7.4 9,348 reviews	Search United Airlines flights
American Airlines	PriceFrom $300	Free Cancellation	Rating 7.2 11,352 reviews	Search American Airlines flights
Southwest	PriceFrom $342	Free Cancellation	Rating 8.0 4,299 reviews	Search Southwest flights

Why use momondo?

Why should I use momondo to find a flight deal from District of Columbia to Idaho?

It is quick and easy to find District of Columbia to Idaho flights on momondo. We search and return numerous flight options from various airlines and agents. You can then use our filters to narrow your search until you have found the most convenient flight to Idaho that suits you.

Can I find flights from District of Columbia to Idaho with flexible booking policies on momondo?

Yes. All flights to Idaho from District of Columbia on momondo can be compared and filtered by various policies on offer, including flexible booking.

How can momondo help me find flights from District of Columbia to Idaho?

momondo provides multiple filters to help you find the best flight to Idaho from District of Columbia. Filter by price, airline, airports, cabin, aircraft, payment method, number of stops and more.

I’m not ready to book a flight from District of Columbia to Idaho right now. Can momondo alert me if prices change?

Yes momondo offers price alerts on flights to Idaho from District of Columbia. 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.