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 42% 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.

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

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 April 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.

$125 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

Cheap round-trip flights

Enter your travel dates to find the best prices.

6:00 pm - 10:49 am

DCA

GEG

19h 49m

1 stop

12:33 pm - 12:59 pm

GEG

DCA

21h 26m

1 stop

$185Frontier

Sat, May 2 - Fri, May 8

10:05 am - 4:48 pm

IAD

BOI

8h 43m

1 stop

12:23 pm - 9:22 pm

BOI

IAD

6h 59m

1 stop

$258United Airlines

Tue, Aug 25 - Tue, Sep 1

4:07 pm - 9:25 pm

DCA

BOI

7h 18m

1 stop

6:23 am - 4:56 pm

BOI

DCA

8h 33m

1 stop

$258United Airlines

Mon, Aug 31 - Tue, Sep 1

6:00 am - 10:57 am

IAD

BOI

6h 57m

1 stop

11:42 pm - 9:26 am

BOI

IAD

7h 44m

1 stop

$263Delta

Tue, Jul 7 - Tue, Jul 14

5:00 pm - 11:56 pm

DCA

BOI

8h 56m

1 stop

6:00 am - 3:40 pm

BOI

DCA

7h 40m

1 stop

$263Delta

Tue, Aug 11 - Tue, Aug 25

6:00 am - 10:57 am

IAD

BOI

6h 57m

1 stop

5:20 am - 6:26 pm

BOI

IAD

11h 06m

2 stops

$268Delta

Tue, Jul 7 - Tue, Jul 14

5:00 am - 11:19 am

DCA

BOI

8h 19m

1 stop

3:11 pm - 11:59 pm

BOI

DCA

6h 48m

1 stop

$274American Airlines

Sat, May 30 - Tue, Jun 2

5:00 am - 11:19 am

DCA

BOI

8h 19m

1 stop

3:11 pm - 11:59 pm

BOI

DCA

6h 48m

1 stop

$275American Airlines

Sat, May 30 - Tue, Jun 2

6:00 am - 3:26 pm

IAD

IDA

11h 26m

1 stop

1:54 pm - 11:59 pm

IDA

IAD

8h 05m

1 stop

$349Alaska Airlines

Sat, May 30 - Tue, Jun 9

6:00 am - 3:26 pm

IAD

IDA

11h 26m

1 stop

1:54 pm - 11:59 pm

IDA

IAD

8h 05m

1 stop

$399Alaska Airlines

Thu, May 14 - Tue, May 19

United Airlines flights from District of Columbia to Idaho

Our best United Airlines deals on District of Columbia to Idaho flight tickets

United Airlines

Aug 25

IAD10:05 amWashington, D.C. Dulles Intl

8h 43m

1 stop

BOI4:48 pmBoise Air Term. Gowen Fld

Sep 1

BOI12:23 pmBoise Air Term. Gowen Fld

6h 59m

1 stop

IAD9:22 pmWashington, D.C. Dulles Intl

$258

United Airlines

Aug 31

DCA4:07 pmWashington, D.C. Reagan-National

7h 18m

1 stop

BOI9:25 pmBoise Air Term. Gowen Fld

Sep 10

BOI12:23 pmBoise Air Term. Gowen Fld

8h 03m

1 stop

DCA10:26 pmWashington, D.C. Reagan-National

$284

United Airlines

Jul 2

IAD6:10 amWashington, D.C. Dulles Intl

7h 22m

1 stop

BOI11:32 amBoise Air Term. Gowen Fld

Jul 11

BOI7:05 pmBoise Air Term. Gowen Fld

8h 48m

1 stop

IAD5:53 amWashington, D.C. Dulles Intl

$287

Delta flights from District of Columbia to Idaho

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

Delta

Jul 7

IAD6:00 amWashington, D.C. Dulles Intl

6h 57m

1 stop

BOI10:57 amBoise Air Term. Gowen Fld

Jul 14

BOI11:42 pmBoise Air Term. Gowen Fld

7h 44m

1 stop

IAD9:26 amWashington, D.C. Dulles Intl

$263

Delta

Jul 7

IAD6:00 amWashington, D.C. Dulles Intl

6h 57m

1 stop

BOI10:57 amBoise Air Term. Gowen Fld

Jul 14

BOI5:20 amBoise Air Term. Gowen Fld

11h 06m

2 stops

IAD6:26 pmWashington, D.C. Dulles Intl

$268

Delta

May 5

DCA6:59 amWashington, D.C. Reagan-National

7h 42m

1 stop

GEG11:41 amSpokane

May 9

GEG2:16 pmSpokane

6h 12m

1 stop

DCA11:28 pmWashington, D.C. Reagan-National

$271

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

Cheapest round-trip

Washington, D.C.Spokane

DCA - GEG

DCAGEG

Washington, D.C. Reagan-National

Sat 5/2

6:00 pm-10:49 am

1 stop19h 49m

Spokane

Fri 5/8

12:33 pm-12:59 pm

1 stop21h 26m

$185

Washington, D.C.Boise

IAD - BOI

IADBOI

Washington, D.C. Dulles Intl

Tue 8/25

10:05 am-4:48 pm

1 stop8h 43m

Boise Air Term. Gowen Fld

Tue 9/1

12:23 pm-9:22 pm

1 stop6h 59m

$258

Washington, D.C.Boise

DCA - BOI

DCABOI

Washington, D.C. Reagan-National

Mon 8/31

4:07 pm-9:25 pm

1 stop7h 18m

Boise Air Term. Gowen Fld

Tue 9/1

6:23 am-4:56 pm

1 stop8h 33m

$258

Quickest round-trip

Washington, D.C.Boise

IAD - BOI

IADBOI

Washington, D.C. Dulles Intl

Tue 7/7

6:00 am-10:57 am

1 stop6h 57m

Boise Air Term. Gowen Fld

Tue 7/14

11:42 pm-9:26 am

1 stop7h 44m

$263

Washington, D.C.Boise

DCA - BOI

DCABOI

Washington, D.C. Reagan-National

Tue 8/11

5:00 pm-11:56 pm

1 stop8h 56m

Boise Air Term. Gowen Fld

Tue 8/25

6:00 am-3:40 pm

1 stop7h 40m

$263

Washington, D.C.Boise

IAD - BOI

IADBOI

Washington, D.C. Dulles Intl

Tue 7/7

6:00 am-10:57 am

1 stop6h 57m

Boise Air Term. Gowen Fld

Tue 7/14

5:20 am-6:26 pm

2 stops11h 06m

$268

Washington, D.C.Boise

DCA - BOI

DCABOI

Washington, D.C. Reagan-National

Sat 5/30

5:00 am-11:19 am

1 stop8h 19m

Boise Air Term. Gowen Fld

Tue 6/2

3:11 pm-11:59 pm

1 stop6h 48m

$274

Washington, D.C.Boise

DCA - BOI

DCABOI

Washington, D.C. Reagan-National

Sat 5/30

5:00 am-11:19 am

1 stop8h 19m

Boise Air Term. Gowen Fld

Tue 6/2

3:11 pm-11:59 pm

1 stop6h 48m

$275

Washington, D.C.Idaho Falls

IAD - IDA

IADIDA

Washington, D.C. Dulles Intl

Sat 5/30

6:00 am-3:26 pm

1 stop11h 26m

Idaho Falls Fanning Field

Tue 6/9

1:54 pm-11:59 pm

1 stop8h 05m

$349

Washington, D.C.Idaho Falls

IAD - IDA

IADIDA

Washington, D.C. Dulles Intl

Thu 5/14

6:00 am-3:26 pm

1 stop11h 26m

Idaho Falls Fanning Field

Tue 5/19

1:54 pm-11:59 pm

1 stop8h 05m

$399

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 $270. 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 32% 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	6h 17m
Direct flights	None

The fastest flight from District of Columbia to Idaho takes 6h 17m

There are no direct flights from District of Columbia to Idaho. There are no popular flight routes from District of Columbia to Idaho.

Search flight deals

Frequently asked questions about flying from District of Columbia to Idaho

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 April 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 8,406 reviews	Search Delta flights
Alaska Airlines	PriceFrom $182	Free Cancellation	Rating 7.9 12,231 reviews	Search Alaska Airlines flights
United Airlines	PriceFrom $221	Free Cancellation	Rating 7.4 9,581 reviews	Search United Airlines flights
Southwest	PriceFrom $256	Free Cancellation	Rating 8.0 4,328 reviews	Search Southwest flights
American Airlines	PriceFrom $300	Free Cancellation	Rating 7.1 11,573 reviews	Search American Airlines 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.