What airlines fly to Idaho?

United Airlines, Delta and Southwest are the top three most popular airlines that fly to Idaho from Washington, D.C. according to our data. United Airlines is the first choice among our users, with 50% 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 Washington, D.C. to Idaho?

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

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 35m on average. Another popular route from Washington, D.C. to Idaho is flying from Washington, D.C. to Boise, which will take roughly 6h 59m. Keep in mind that layovers or delays could extend your travel time.

How many flights depart from Washington, D.C. to Idaho on average per week?

As of August 2026, 1 flights take off from Washington, D.C. and land in Idaho each week. The most common flight departure day for this route is Mon, with 100% of weekly flights taking off on this day.

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 August 2026.

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.

$122 Cheap Flights from Washington, D.C. to Idaho in 2026

Discover deals from 900+ travel sites with momondo.

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.

8:59 am - 11:29 am-

28h 30m

2:50 pm - 6:20 am-

13h 30m

$267Frontier

Wed, Aug 26 - Fri, Sep 11

6:00 am - 1:55 pm-

9h 55m

2:50 pm - 6:20 am-

13h 30m

$269Frontier

Fri, Sep 18 - Mon, Sep 21

6:00 am - 12:49 pm-

8h 49m

2:53 pm - 11:50 pm-

6h 57m

$303Delta

Sat, Aug 22 - Wed, Aug 26

4:41 pm - 10:59 pm-

8h 18m

2:50 pm - 11:59 pm-

7h 09m

$303Delta

Wed, Sep 9 - Sat, Sep 12

4:19 pm - 10:59 pm-

8h 40m

2:51 pm - 11:08 pm-

6h 17m

$303United Airlines

Sat, Nov 7 - Mon, Nov 9

6:15 am - 11:26 am-

7h 11m

2:44 pm - 11:25 pm-

6h 41m

$303United Airlines

Tue, Sep 22 - Tue, Sep 29

6:30 am - 2:31 pm-

10h 01m

1:50 pm - 11:59 pm-

8h 09m

$303American Airlines

Wed, Sep 9 - Fri, Sep 11

8:40 am - 2:31 pm-

7h 51m

3:21 pm - 11:59 pm-

6h 38m

$303American Airlines

Wed, Sep 16 - Mon, Sep 21

4:43 pm - 11:55 pm-

9h 12m

8:03 am - 6:08 pm-

8h 05m

$303Alaska Airlines

Wed, Sep 9 - Tue, Sep 15

7:50 am - 8:20 pm-

14h 30m

1:31 pm - 3:40 pm-

24h 09m

$303Alaska Airlines

Tue, Sep 15 - Tue, Sep 22

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Frontier flights from Washington, D.C. to Idaho

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

Frontier

Aug 26

IAD8:59 amWashington, D.C. Dulles Intl

28h 30m

2 stops

BOI11:29 amBoise Air Term. Gowen Fld

Sep 11

BOI2:50 pmBoise Air Term. Gowen Fld

13h 30m

1 stop

IAD6:20 amWashington, D.C. Dulles Intl

$267

Frontier

Sep 18

IAD6:00 amWashington, D.C. Dulles Intl

9h 55m

1 stop

BOI1:55 pmBoise Air Term. Gowen Fld

Sep 21

BOI2:50 pmBoise Air Term. Gowen Fld

13h 30m

1 stop

IAD6:20 amWashington, D.C. Dulles Intl

$269

Frontier

Sep 18

IAD6:00 amWashington, D.C. Dulles Intl

9h 55m

1 stop

BOI1:55 pmBoise Air Term. Gowen Fld

Sep 21

BOI2:50 pmBoise Air Term. Gowen Fld

13h 30m

1 stop

IAD6:20 amWashington, D.C. Dulles Intl

$270

Delta flights from Washington, D.C. to Idaho

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

Delta

Aug 26

IAD6:00 amWashington, D.C. Dulles Intl

8h 49m

1 stop

BOI12:49 pmBoise Air Term. Gowen Fld

Sep 11

BOI1:06 pmBoise Air Term. Gowen Fld

8h 37m

1 stop

IAD11:43 pmWashington, D.C. Dulles Intl

$303

Delta

Sep 8

DCA4:45 pmWashington, D.C. Reagan-National

7h 49m

1 stop

BOI10:34 pmBoise Air Term. Gowen Fld

Sep 12

BOI2:50 pmBoise Air Term. Gowen Fld

7h 09m

1 stop

DCA11:59 pmWashington, D.C. Reagan-National

$310

Delta

Sep 5

BWI2:57 pmBaltimore/Washington

7h 27m

1 stop

GEG7:24 pmSpokane

Sep 11

GEG5:14 pmSpokane

10h 04m

1 stop

BWI6:18 amBaltimore/Washington

$319

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

Washington, D.C.Boise

IAD - BOI

IADBOI

Washington, D.C. Dulles Intl

Wed 8/26

8:59 am-11:29 am

2 stops28h 30m

Boise Air Term. Gowen Fld

Fri 9/11

2:50 pm-6:20 am

1 stop13h 30m

$267

Washington, D.C.Boise

IAD - BOI

IADBOI

Washington, D.C. Dulles Intl

Fri 9/18

6:00 am-1:55 pm

1 stop9h 55m

Boise Air Term. Gowen Fld

Mon 9/21

2:50 pm-6:20 am

1 stop13h 30m

$269

Washington, D.C.Boise

DCA - BOI

DCABOI

Washington, D.C. Reagan-National

Sat 8/22

6:00 am-12:49 pm

1 stop8h 49m

Boise Air Term. Gowen Fld

Wed 8/26

2:53 pm-11:50 pm

1 stop6h 57m

$303

Washington, D.C.Boise

DCA - BOI

DCABOI

Washington, D.C. Reagan-National

Wed 9/9

4:41 pm-10:59 pm

1 stop8h 18m

Boise Air Term. Gowen Fld

Sat 9/12

2:50 pm-11:59 pm

1 stop7h 09m

$303

BaltimoreBoise

BWI - BOI

BWIBOI

Baltimore/Washington

Sat 11/7

4:19 pm-10:59 pm

1 stop8h 40m

Boise Air Term. Gowen Fld

Mon 11/9

2:51 pm-11:08 pm

1 stop6h 17m

$303

Quickest round-trip

Washington, D.C.Boise

IAD - BOI

IADBOI

Washington, D.C. Dulles Intl

Tue 9/22

6:15 am-11:26 am

1 stop7h 11m

Boise Air Term. Gowen Fld

Tue 9/29

2:44 pm-11:25 pm

1 stop6h 41m

$303

Washington, D.C.Boise

DCA - BOI

DCABOI

Washington, D.C. Reagan-National

Wed 9/9

6:30 am-2:31 pm

1 stop10h 01m

Boise Air Term. Gowen Fld

Fri 9/11

1:50 pm-11:59 pm

1 stop8h 09m

$303

Washington, D.C.Boise

DCA - BOI

DCABOI

Washington, D.C. Reagan-National

Wed 9/16

8:40 am-2:31 pm

1 stop7h 51m

Boise Air Term. Gowen Fld

Mon 9/21

3:21 pm-11:59 pm

1 stop6h 38m

$303

BaltimoreBoise

BWI - BOI

BWIBOI

Baltimore/Washington

Wed 9/9

4:43 pm-11:55 pm

1 stop9h 12m

Boise Air Term. Gowen Fld

Tue 9/15

8:03 am-6:08 pm

1 stop8h 05m

$303

BaltimoreBoise

BWI - BOI

BWIBOI

Baltimore/Washington

Tue 9/15

7:50 am-8:20 pm

2 stops14h 30m

Boise Air Term. Gowen Fld

Tue 9/22

1:31 pm-3:40 pm

1 stop24h 09m

$303

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, May 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 $397. If you don’t want to visit Idaho in May, then you should wait until August to fly from Washington, D.C., when ticket prices are also cheap, with an average price of $418.

What is the cheapest Washington, D.C. to Idaho flight route?

Fly from Washington, D.C. Dulles Intl to Idaho Falls Fanning Field for the best Washington, D.C. - Idaho flight prices

What cabin class options are available on Washington, D.C. to Idaho flights?

There is only 1 cabin class available to choose from on Washington, D.C. to Idaho flights. Cabin price and availability will vary by airline so perform a search above to find the right deals for you.

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

You could potentially save up to 36% 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 40m
Direct flights	Sun
Airports in Idaho	27 airports

The fastest flight from Washington, D.C. to Idaho takes 4h 40m

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

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

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 August 2026.
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.
What is the most popular plane model from Washington, D.C. to Idaho?
Based on momondo bookings for flights between Washington, D.C. and Idaho, the leading plane model is Airbus A321neo, making up 100.00% of the total bookings.

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 $179	Free Cancellation	Rating 7.9 12,763 reviews	Search Alaska Airlines flights
Delta	PriceFrom $202	Free Cancellation	Rating 7.8 8,489 reviews	Search Delta flights
United Airlines	PriceFrom $221	Free Cancellation	Rating 7.4 10,060 reviews	Search United Airlines flights
American Airlines	PriceFrom $262	Free Cancellation	Rating 7.1 11,853 reviews	Search American Airlines flights
Southwest	PriceFrom $342	Free Cancellation	Rating 8.0 4,221 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.