What airlines fly to Idaho?

Delta, American Airlines 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. Delta 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 Washington, D.C. Reagan-National to Idaho?

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

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

As of April 2026, there are 5 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.

$110 Cheap Flights from Washington, D.C. Reagan-National Airport to Idaho in 2026

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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.

7:59 am - 10:49 am

DCA

GEG

29h 50m

1 stop

11:44 am - 12:59 pm

GEG

DCA

22h 15m

1 stop

$259Frontier

Wed, Apr 29 - Sun, May 3

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

4:40 pm - 11:55 pm

DCA

BOI

9h 15m

1 stop

9:18 pm - 8:37 am

BOI

DCA

9h 19m

2 stops

$268Delta

Wed, May 27 - Mon, Jun 1

6:59 am - 11:41 am

DCA

GEG

7h 42m

1 stop

2:16 pm - 11:28 pm

GEG

DCA

6h 12m

1 stop

$271Delta

Tue, May 5 - Sat, May 9

6:59 am - 11:17 am

DCA

GEG

7h 18m

1 stop

2:16 pm - 11:28 pm

GEG

DCA

6h 12m

1 stop

$273Delta

Tue, May 19 - Sun, May 24

2:45 pm - 12:04 am

DCA

BOI

11h 19m

2 stops

9:18 pm - 8:37 am

BOI

DCA

9h 19m

2 stops

$273Delta

Wed, May 27 - Mon, Jun 1

5:00 am - 11:27 am

DCA

BOI

8h 27m

1 stop

1:14 pm - 11:59 pm

BOI

DCA

8h 45m

1 stop

$277American Airlines

Tue, Aug 11 - Tue, Aug 25

4:07 pm - 9:25 pm

DCA

BOI

7h 18m

1 stop

12:23 pm - 10:26 pm

BOI

DCA

8h 03m

1 stop

$284United Airlines

Mon, Aug 31 - Thu, Sep 10

5:00 am - 11:27 am

DCA

BOI

8h 27m

1 stop

12:17 pm - 11:58 pm

BOI

DCA

9h 41m

1 stop

$288American Airlines

Tue, Aug 11 - Tue, Aug 25

1:00 pm - 6:50 pm

DCA

SUN

7h 50m

1 stop

7:00 am - 3:11 pm

SUN

DCA

6h 11m

1 stop

$394United Airlines

Sat, Aug 22 - Sat, Aug 29

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

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

Alaska Airlines

May 5

DCA5:28 pmWashington, D.C. Reagan-National

8h 31m

1 stop

BOI11:59 pmBoise Air Term. Gowen Fld

May 6

BOI7:43 amBoise Air Term. Gowen Fld

11h 17m

1 stop

DCA9:00 pmWashington, D.C. Reagan-National

$370

Alaska Airlines

Sep 2

DCA5:20 pmWashington, D.C. Reagan-National

8h 35m

1 stop

BOI11:55 pmBoise Air Term. Gowen Fld

Sep 11

BOI7:05 amBoise Air Term. Gowen Fld

10h 55m

1 stop

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

$406

Alaska Airlines

May 27

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

24h 44m

1 stop

BOI5:43 pmBoise Air Term. Gowen Fld

Jun 1

BOI6:54 pmBoise Air Term. Gowen Fld

21h 05m

1 stop

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

$417

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

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

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

Aug 20

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

6h 55m

1 stop

BOI11:25 amBoise Air Term. Gowen Fld

Aug 22

BOI6:30 amBoise Air Term. Gowen Fld

6h 41m

1 stop

DCA3:11 pmWashington, D.C. Reagan-National

$305

United Airlines

Sep 9

DCA1:00 pmWashington, D.C. Reagan-National

12h 22m

2 stops

GEG10:22 pmSpokane

Sep 15

GEG11:16 amSpokane

8h 10m

1 stop

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

$341

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.Spokane

DCA - GEG

DCAGEG

Washington, D.C. Reagan-National

Wed 4/29

7:59 am-10:49 am

1 stop29h 50m

Spokane

Sun 5/3

11:44 am-12:59 pm

1 stop22h 15m

$259

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

DCA - BOI

DCABOI

Washington, D.C. Reagan-National

Wed 5/27

4:40 pm-11:55 pm

1 stop9h 15m

Boise Air Term. Gowen Fld

Mon 6/1

9:18 pm-8:37 am

2 stops9h 19m

$268

Washington, D.C.Spokane

DCA - GEG

DCAGEG

Washington, D.C. Reagan-National

Tue 5/5

6:59 am-11:41 am

1 stop7h 42m

Spokane

Sat 5/9

2:16 pm-11:28 pm

1 stop6h 12m

$271

Quickest round-trip

Washington, D.C.Spokane

DCA - GEG

DCAGEG

Washington, D.C. Reagan-National

Tue 5/19

6:59 am-11:17 am

1 stop7h 18m

Spokane

Sun 5/24

2:16 pm-11:28 pm

1 stop6h 12m

$273

Washington, D.C.Boise

DCA - BOI

DCABOI

Washington, D.C. Reagan-National

Wed 5/27

2:45 pm-12:04 am

2 stops11h 19m

Boise Air Term. Gowen Fld

Mon 6/1

9:18 pm-8:37 am

2 stops9h 19m

$273

Washington, D.C.Boise

DCA - BOI

DCABOI

Washington, D.C. Reagan-National

Tue 8/11

5:00 am-11:27 am

1 stop8h 27m

Boise Air Term. Gowen Fld

Tue 8/25

1:14 pm-11:59 pm

1 stop8h 45m

$277

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

Thu 9/10

12:23 pm-10:26 pm

1 stop8h 03m

$284

Washington, D.C.Boise

DCA - BOI

DCABOI

Washington, D.C. Reagan-National

Tue 8/11

5:00 am-11:27 am

1 stop8h 27m

Boise Air Term. Gowen Fld

Tue 8/25

12:17 pm-11:58 pm

1 stop9h 41m

$288

Washington, D.C.Hailey

DCA - SUN

DCASUN

Washington, D.C. Reagan-National

Sat 8/22

1:00 pm-6:50 pm

1 stop7h 50m

Hailey Sun Valley-Friedman

Sat 8/29

7:00 am-3:11 pm

1 stop6h 11m

$394

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

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

You could potentially save up to 21% 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

Fastest flight time	6h 27m
Direct flights	None

The fastest flight from Washington, D.C. Reagan-National Airport to Idaho takes 6h 27m

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.

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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 April 2026, there are 5 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
Delta	PriceFrom $150	Free Cancellation	Rating 7.9 8,424 reviews	Search Delta flights
United Airlines	PriceFrom $221	Free Cancellation	Rating 7.4 9,605 reviews	Search United Airlines flights
Southwest	PriceFrom $256	Free Cancellation	Rating 8.0 4,330 reviews	Search Southwest flights
American Airlines	PriceFrom $300	Free Cancellation	Rating 7.1 11,604 reviews	Search American Airlines flights
Alaska Airlines	PriceFrom $388	Free Cancellation	Rating 7.9 12,258 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.

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Flights to New Yorkfrom $56

Flights to Los Angelesfrom $53

Flights to Orlandofrom $53

Flights to Miamifrom $50

Flights to Chicagofrom $67

Flights to San Franciscofrom $56

Flights to Las Vegasfrom $46

Flights to Washington, D.C.from $55

Flights to Bostonfrom $70

Flights to Atlantafrom $53

Flights to Dallasfrom $62

Flights to Fort Lauderdalefrom $47

Cheap flights from Washington, D.C. Reagan-National Airport to Idaho from $110

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

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

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

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

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

See travel insights to Idaho from

How to get the cheapest flight ticket from Washington, D.C. Reagan-National Airport to Idaho

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

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

What airlines fly to Idaho?

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

Fastest flight time

Direct flights

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

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

Why use momondo?

An easier way to manage your Idaho trip

We make it super easy to schedule, organize and travel with friends or family. Trips is free — and available to use no matter where you book.

Get notified when prices go down

Daily price changes in your inbox - only with Price Alerts.

Find better results for your trip to Idaho

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Washington, D.C. Reagan-National Airport flight routes

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