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

Delta, American Airlines, and Southwest are the most popular carriers operating from Washington, D.C. Reagan-National to Idaho

What airlines fly to Idaho?

American Airlines, Delta and United Airlines are the top three most popular airlines that fly to Idaho from Washington, D.C. Reagan-National Airport according to our data. American 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 4 different airlines that fly to Idaho on a routine basis, so you have a few additional options to choose from.

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

As of October 2026, there are 4 operators available to choose from for flights from Washington, D.C. Reagan-National Airport to Idaho.

How old do you have to be to fly from Washington, D.C. Reagan-National Airport 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 Washington, D.C. Reagan-National Airport 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.

$172 Cheap Flights from Washington, D.C. Reagan-National Airport to Idaho in 2026/27

Discover deals from 900+ travel sites with momondo.

Find the cheapest flights from Washington, D.C. Reagan-National Airport to Idaho

Round-trip

One-way

Last minute

Cheap round-trip flights

Enter your travel dates to find the best prices.

1:45 pm - 8:06 pmDCA Washington, D.C. Reagan-National-BOI Boise Air Term. Gowen Fld

8h 21m1 stop Dallas/Fort Worth

1:35 pm - 10:48 pmBOI Boise Air Term. Gowen Fld-DCA Washington, D.C. Reagan-National

7h 13m1 stop Dallas/Fort Worth

$225American Airlines

Sat, Jan 16 - Wed, Jan 20

6:00 am - 12:37 pmDCA Washington, D.C. Reagan-National-BOI Boise Air Term. Gowen Fld

8h 37m1 stop Chicago O'Hare Intl

2:41 pm - 11:59 pmBOI Boise Air Term. Gowen Fld-DCA Washington, D.C. Reagan-National

7h 18m1 stop Dallas/Fort Worth

$225American Airlines

Wed, Nov 11 - Wed, Nov 18

6:59 pm - 11:59 pmDCA Washington, D.C. Reagan-National-BOI Boise Air Term. Gowen Fld

7h 00m1 stop Minneapolis St Paul

11:10 pm - 9:14 amBOI Boise Air Term. Gowen Fld-DCA Washington, D.C. Reagan-National

8h 04m1 stop Atlanta Hartsfield-Jackson

$225Delta

Wed, Nov 11 - Mon, Nov 16

6:59 pm - 11:59 pmDCA Washington, D.C. Reagan-National-BOI Boise Air Term. Gowen Fld

7h 00m1 stop Minneapolis St Paul

2:26 pm - 11:46 pmBOI Boise Air Term. Gowen Fld-DCA Washington, D.C. Reagan-National

7h 20m1 stop Atlanta Hartsfield-Jackson

$225Delta

Wed, Nov 11 - Sat, Nov 14

5:05 pm - 11:44 pmDCA Washington, D.C. Reagan-National-BOI Boise Air Term. Gowen Fld

8h 39m1 stop Portland

11:10 am - 9:59 pmBOI Boise Air Term. Gowen Fld-DCA Washington, D.C. Reagan-National

8h 49m1 stop Seattle/Tacoma Intl

$225Alaska Airlines

Sat, Jan 9 - Wed, Jan 13

10:59 am - 7:53 pmDCA Washington, D.C. Reagan-National-BOI Boise Air Term. Gowen Fld

10h 54m1 stop San Diego

5:43 am - 4:11 pmBOI Boise Air Term. Gowen Fld-DCA Washington, D.C. Reagan-National

8h 28m1 stop Portland

$225Alaska Airlines

Tue, Nov 10 - Sat, Nov 14

6:59 pm - 12:10 amDCA Washington, D.C. Reagan-National-BOI Boise Air Term. Gowen Fld

7h 11m1 stop Minneapolis St Paul

1:47 pm - 10:41 pmBOI Boise Air Term. Gowen Fld-DCA Washington, D.C. Reagan-National

6h 54m1 stop Atlanta Hartsfield-Jackson

$225Delta

Mon, Dec 14 - Wed, Dec 16

6:00 am - 12:37 pmDCA Washington, D.C. Reagan-National-BOI Boise Air Term. Gowen Fld

8h 37m1 stop Chicago O'Hare Intl

2:41 pm - 11:59 pmBOI Boise Air Term. Gowen Fld-DCA Washington, D.C. Reagan-National

7h 18m1 stop Dallas/Fort Worth

$280American Airlines

Mon, Nov 9 - Wed, Nov 11

6:25 am - 11:31 amDCA Washington, D.C. Reagan-National-BOI Boise Air Term. Gowen Fld

7h 06m1 stop Chicago O'Hare Intl

8:28 am - 5:06 pmBOI Boise Air Term. Gowen Fld-DCA Washington, D.C. Reagan-National

6h 38m1 stop Chicago O'Hare Intl

$354United Airlines

Wed, Nov 18 - Mon, Nov 23

4:09 pm - 9:32 pmDCA Washington, D.C. Reagan-National-BOI Boise Air Term. Gowen Fld

7h 23m1 stop Denver Intl

12:31 pm - 9:11 pmBOI Boise Air Term. Gowen Fld-DCA Washington, D.C. Reagan-National

6h 40m1 stop Chicago O'Hare Intl

$403United Airlines

Tue, Nov 10 - Sat, Nov 14

Cheap last minute flights

Enter your travel dates to find the best prices.

5:11 pm - 11:49 pmDCA Washington, D.C. Reagan-National-BOI Boise Air Term. Gowen Fld

8h 38m1 stop Seattle/Tacoma Intl

5:43 am - 4:11 pmBOI Boise Air Term. Gowen Fld-DCA Washington, D.C. Reagan-National

8h 28m1 stop Portland

$403Alaska Airlines

Mon, Nov 2 - Tue, Nov 3

6:40 pm - 1:25 amDCA Washington, D.C. Reagan-National-BOI Boise Air Term. Gowen Fld

8h 45m1 stop Las Vegas Harry Reid Intl

1:05 pm - 10:10 pmBOI Boise Air Term. Gowen Fld-DCA Washington, D.C. Reagan-National

7h 05m2 stops Denver Intl Lambert-St Louis

$456Southwest

Mon, Nov 2 - Tue, Nov 3

3:35 pm - 10:55 pmDCA Washington, D.C. Reagan-National-BOI Boise Air Term. Gowen Fld

9h 20m2 stops Nashville Intl Denver Intl

5:45 am - 6:55 pmBOI Boise Air Term. Gowen Fld-DCA Washington, D.C. Reagan-National

11h 10m2 stops Phoenix Sky Harbor Intl Lambert-St Louis

$509Southwest

Mon, Nov 2 - Tue, Nov 3

7:12 am - 1:05 pmDCA Washington, D.C. Reagan-National-IDA Idaho Falls Fanning Field

7h 53m1 stop Dallas/Fort Worth

1:35 pm - 11:59 pmIDA Idaho Falls Fanning Field-DCA Washington, D.C. Reagan-National

8h 24m1 stop Dallas/Fort Worth

$588American Airlines

Sun, Nov 1 - Tue, Nov 3

11:40 am - 9:43 pmDCA Washington, D.C. Reagan-National-IDA Idaho Falls Fanning Field

12h 03m2 stops Chicago O'Hare Intl Dallas/Fort Worth

1:35 pm - 11:59 pmIDA Idaho Falls Fanning Field-DCA Washington, D.C. Reagan-National

8h 24m1 stop Dallas/Fort Worth

$643American Airlines

Sun, Nov 1 - Tue, Nov 3

10:01 pm - 12:37 pmDCA Washington, D.C. Reagan-National-BOI Boise Air Term. Gowen Fld

16h 36m1 stop Chicago O'Hare Intl

1:24 pm - 10:29 pmBOI Boise Air Term. Gowen Fld-DCA Washington, D.C. Reagan-National

7h 05m1 stop Chicago O'Hare Intl

$727American Airlines

Sun, Nov 1 - Tue, Nov 3

4:35 pm - 1:05 amDCA Washington, D.C. Reagan-National-BOI Boise Air Term. Gowen Fld

10h 30m1 stop Las Vegas Harry Reid Intl

5:35 am - 10:55 pmBOI Boise Air Term. Gowen Fld-DCA Washington, D.C. Reagan-National

15h 20m2 stops Las Vegas Harry Reid Intl Kansas City

$891Southwest

Thu, Oct 29 - Sun, Nov 1

9:00 am - 5:59 pmDCA Washington, D.C. Reagan-National-BOI Boise Air Term. Gowen Fld

10h 59m2 stops Atlanta Hartsfield-Jackson Salt Lake City

3:00 pm - 11:44 pmBOI Boise Air Term. Gowen Fld-DCA Washington, D.C. Reagan-National

6h 44m1 stop Minneapolis St Paul

$895Delta

Wed, Oct 28 - Sun, Nov 1

9:40 am - 5:59 pmDCA Washington, D.C. Reagan-National-BOI Boise Air Term. Gowen Fld

10h 19m2 stops Detroit Metropolitan Wayne County Salt Lake City

3:00 pm - 11:44 pmBOI Boise Air Term. Gowen Fld-DCA Washington, D.C. Reagan-National

6h 44m1 stop Minneapolis St Paul

$895Delta

Wed, Oct 28 - Sun, Nov 1

6:25 am - 9:09 pmDCA Washington, D.C. Reagan-National-IDA Idaho Falls Fanning Field

16h 44m3 stops Chicago O'Hare Intl Indianapolis Denver Intl

7:00 am - 9:11 pmIDA Idaho Falls Fanning Field-DCA Washington, D.C. Reagan-National

12h 11m2 stops Denver Intl Chicago O'Hare Intl

$2,580United Airlines

Sun, Nov 1 - Tue, Nov 3

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Southwest flights from Washington, D.C. Reagan-National Airport to Idaho

Our best Southwest deals on Washington, D.C. Reagan-National Airport to Idaho flight tickets

Southwest

Nov 11

DCA4:00 pmWashington, D.C. Reagan-National

8h 35m

2 stops

BOI10:35 pmBoise Air Term. Gowen Fld

Nov 18

BOI1:05 pmBoise Air Term. Gowen Fld

8h 15m

2 stops

DCA11:20 pmWashington, D.C. Reagan-National

$235

Southwest

Nov 9

DCA6:40 pmWashington, D.C. Reagan-National

8h 50m

1 stop

BOI1:30 amBoise Air Term. Gowen Fld

Nov 10

BOI5:45 amBoise Air Term. Gowen Fld

8h 35m

2 stops

DCA4:20 pmWashington, D.C. Reagan-National

$278

Southwest

Dec 9

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

9h 10m

2 stops

BOI3:10 pmBoise Air Term. Gowen Fld

Dec 19

BOI8:50 pmBoise Air Term. Gowen Fld

9h 35m

2 stops

DCA8:25 amWashington, D.C. Reagan-National

$283

Delta flights from Washington, D.C. Reagan-National Airport to Idaho

Our best Delta deals on Washington, D.C. Reagan-National Airport to Idaho flight tickets

Delta

Nov 9

DCA4:25 pmWashington, D.C. Reagan-National

9h 25m

1 stop

BOI11:50 pmBoise Air Term. Gowen Fld

Nov 10

BOI3:00 pmBoise Air Term. Gowen Fld

6h 37m

1 stop

DCA11:37 pmWashington, D.C. Reagan-National

$225

Delta

Nov 13

DCA5:59 pmWashington, D.C. Reagan-National

8h 11m

1 stop

BOI12:10 amBoise Air Term. Gowen Fld

Nov 17

BOI1:41 pmBoise Air Term. Gowen Fld

8h 05m

1 stop

DCA11:46 pmWashington, D.C. Reagan-National

$254

Delta

Nov 12

DCA6:00 amWashington, D.C. Reagan-National

9h 39m

1 stop

BOI1:39 pmBoise Air Term. Gowen Fld

Nov 16

BOI11:10 pmBoise Air Term. Gowen Fld

8h 04m

1 stop

DCA9:14 amWashington, D.C. Reagan-National

$269

momondo Fare Finder

Use the filters below to find and compare flights from Washington, D.C. Reagan-National Airport to Idaho that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

Washington, D.C.Boise

DCA Washington, D.C. Reagan-National - BOI Boise Air Term. Gowen Fld

DCABOI

Washington, D.C. Reagan-National

Sat 1/16

1:45 pm-8:06 pm

1 stop8h 21m

Boise Air Term. Gowen Fld

Wed 1/20

1:35 pm-10:48 pm

1 stop7h 13m

$225

Washington, D.C.Boise

DCA Washington, D.C. Reagan-National - BOI Boise Air Term. Gowen Fld

DCABOI

Washington, D.C. Reagan-National

Wed 11/11

6:00 am-12:37 pm

1 stop8h 37m

Boise Air Term. Gowen Fld

Wed 11/18

2:41 pm-11:59 pm

1 stop7h 18m

$225

Washington, D.C.Boise

DCA Washington, D.C. Reagan-National - BOI Boise Air Term. Gowen Fld

DCABOI

Washington, D.C. Reagan-National

Wed 11/11

6:59 pm-11:59 pm

1 stop7h 00m

Boise Air Term. Gowen Fld

Mon 11/16

11:10 pm-9:14 am

1 stop8h 04m

$225

Washington, D.C.Boise

DCA Washington, D.C. Reagan-National - BOI Boise Air Term. Gowen Fld

DCABOI

Washington, D.C. Reagan-National

Wed 11/11

6:59 pm-11:59 pm

1 stop7h 00m

Boise Air Term. Gowen Fld

Sat 11/14

2:26 pm-11:46 pm

1 stop7h 20m

$225

Washington, D.C.Boise

DCA Washington, D.C. Reagan-National - BOI Boise Air Term. Gowen Fld

DCABOI

Washington, D.C. Reagan-National

Sat 1/9

5:05 pm-11:44 pm

1 stop8h 39m

Boise Air Term. Gowen Fld

Wed 1/13

11:10 am-9:59 pm

1 stop8h 49m

$225

Washington, D.C.Boise

DCA Washington, D.C. Reagan-National - BOI Boise Air Term. Gowen Fld

DCABOI

Washington, D.C. Reagan-National

Tue 11/10

10:59 am-7:53 pm

1 stop10h 54m

Boise Air Term. Gowen Fld

Sat 11/14

5:43 am-4:11 pm

1 stop8h 28m

$225

Washington, D.C.Boise

DCA Washington, D.C. Reagan-National - BOI Boise Air Term. Gowen Fld

DCABOI

Washington, D.C. Reagan-National

Mon 12/14

6:59 pm-12:10 am

1 stop7h 11m

Boise Air Term. Gowen Fld

Wed 12/16

1:47 pm-10:41 pm

1 stop6h 54m

$225

Washington, D.C.Boise

DCA Washington, D.C. Reagan-National - BOI Boise Air Term. Gowen Fld

DCABOI

Washington, D.C. Reagan-National

Mon 11/9

6:00 am-12:37 pm

1 stop8h 37m

Boise Air Term. Gowen Fld

Wed 11/11

2:41 pm-11:59 pm

1 stop7h 18m

$280

Quickest round-trip

Washington, D.C.Boise

DCA Washington, D.C. Reagan-National - BOI Boise Air Term. Gowen Fld

DCABOI

Washington, D.C. Reagan-National

Wed 11/18

6:25 am-11:31 am

1 stop7h 06m

Boise Air Term. Gowen Fld

Mon 11/23

8:28 am-5:06 pm

1 stop6h 38m

$354

Washington, D.C.Boise

DCA Washington, D.C. Reagan-National - BOI Boise Air Term. Gowen Fld

DCABOI

Washington, D.C. Reagan-National

Tue 11/10

4:09 pm-9:32 pm

1 stop7h 23m

Boise Air Term. Gowen Fld

Sat 11/14

12:31 pm-9:11 pm

1 stop6h 40m

$403

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. Reagan-National Airport 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, February is the cheapest month to fly from Washington, D.C. Reagan-National Airport to Idaho. Due to it being the ‘off-season’ during this time, you can expect flight prices to be around $0. If you don’t want to visit Idaho in February, then you should wait until April to fly from Washington, D.C. Reagan-National Airport, when ticket prices are also cheap, with an average price of $270.

Can stopping save me money on Washington, D.C. Reagan-National Airport to Idaho flights?

You could potentially save up to 41% on your flight if you consider stops on a Washington, D.C. Reagan-National Airport to Idaho flight.

Cheap Washington, D.C. Reagan-National Airport to Idaho flight deals and tips

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

Best Price Found	$172
Fastest flight time	6h 39m
Direct flights	None

The best one-way flight to Idaho from Washington, D.C. Reagan-National Airport in the past 72 hours is $172. The best round-trip flight deal from Washington, D.C. Reagan-National Airport to Idaho found on momondo in the last 72 hours is $225.

The fastest flight from Washington, D.C. Reagan-National Airport to Idaho takes 6h 39m

There are no direct flights from Washington, D.C. Reagan-National Airport to Idaho. There are no popular flight routes from Washington, D.C. Reagan-National Airport to Idaho.

Search flight deals

Frequently asked questions about flying from Washington, D.C. Reagan-National Airport to Idaho

When did momondo last update prices for flights from Washington, D.C. Reagan-National Airport to Idaho?
Prices for flights from Washington, D.C. Reagan-National Airport to Idaho refresh daily.
How many operators does momondo search for flights from Washington, D.C. Reagan-National Airport to Idaho?
As of October 2026, there are 4 operators available to choose from for flights from Washington, D.C. Reagan-National Airport to Idaho.
How old do you have to be to fly from Washington, D.C. Reagan-National Airport 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 Washington, D.C. Reagan-National Airport 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 Washington, D.C. Reagan-National Airport to Idaho

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

Airline	Rating	Free Cancellation	Price
American Airlines	PriceFrom $262	Free Cancellation	Rating 7.0 12,191 reviews	Search American Airlines flights
Delta	PriceFrom $270	Free Cancellation	Rating 7.8 8,680 reviews	Search Delta flights
United Airlines	PriceFrom $322	Free Cancellation	Rating 7.3 10,442 reviews	Search United Airlines flights
Alaska Airlines	PriceFrom $388	Free Cancellation	Rating 7.9 13,121 reviews	Search Alaska Airlines 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. momondo allows you to filter the results for Washington, D.C. to Idaho flights to just show those with flexible booking policies.

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?

Price alerts on flights to Idaho from Washington, D.C. are quick and easy to set up on momondo. Simply perform a search and select the price alert feature. It is as simple as that.