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$107+ Cheap flights from Reagan-National (DCA) to Idaho

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 12/6. Fares are subject to change and may not be available on all flights or dates of travel.
DCA — BOI
Nov 15 — Nov 221
Sat 11/15
Sat 11/22
1 adult, Economy
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Find flight deals from Reagan-National to Idaho

Cheapest flights from Reagan-National to Idaho
Explore the most affordable flight options available from Reagan-National to Idaho. Find the lowest fares from popular airlines and budget airlines, with prices last updated on October 16, 2025.

This Frontier deal was found by Cheapflights users on 10/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/46:00 pmDCA - BOI
1 stop19h 49mFrontier
Thu 12/1112:44 pmBOI - DCA
1 stop21h 21mFrontier
Deal found 10/16$212
This Kiwi.com deal was found by Cheapflights users on 10/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/46:00 pmDCA - BOI
1 stop19h 49mFrontier
Sun 12/712:44 pmBOI - DCA
1 stop7h 15mFrontier
Deal found 10/16$220
This Kiwi.com deal was found by Cheapflights users on 10/14. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/292:00 pmDCA - GEG
1 stop24h 08mFrontier
Sun 11/212:03 pmGEG - DCA
1 stop21h 59mFrontier
Deal found 10/14$267
This Kiwi.com deal was found by Cheapflights users on 10/14. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/292:00 pmDCA - BOI
1 stop23h 48mFrontier
Sun 11/212:33 pmBOI - DCA
1 stop22h 29mFrontier
Deal found 10/14$268
This Kiwi.com deal was found by Cheapflights users on 10/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 12/138:00 amDCA - BOI
1 stop29h 49mFrontier
Sun 12/2112:38 pmBOI - DCA
1 stop22h 23mFrontier
Deal found 10/16$283
This Alaska Airlines deal was found by Cheapflights users on 10/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/138:00 amDCA - GEG
1 stop17h 59mAlaska Airlines
Tue 11/185:51 amGEG - DCA
1 stop13h 08mAlaska Airlines
Deal found 10/16$306
This Delta deal was found by Cheapflights users on 10/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/104:55 pmDCA - GEG
1 stop10h 16mDelta
Mon 12/155:05 amGEG - DCA
1 stop7h 22mDelta
Deal found 10/16$307
This Delta deal was found by Cheapflights users on 10/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/134:56 pmDCA - GEG
1 stop8h 54mDelta
Tue 11/1811:19 amGEG - DCA
2 stops8h 51mDelta
Deal found 10/16$312
This Alaska Airlines deal was found by Cheapflights users on 10/13. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/48:59 amDCA - BOI
1 stop16h 56mAlaska Airlines
Sat 1/107:45 amBOI - DCA
1 stop11h 15mAlaska Airlines
Deal found 10/13$316
This Delta deal was found by Cheapflights users on 10/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 11/85:10 pmDCA - GEG
1 stop8h 24mDelta
Tue 11/115:00 amGEG - DCA
1 stop7h 25mDelta
Deal found 10/16$317
This American Airlines deal was found by Cheapflights users on 10/15. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/197:00 amDCA - BOI
1 stop8h 46mAmerican Airlines
Wed 12/31:36 pmBOI - DCA
1 stop8h 20mAmerican Airlines
Deal found 10/15$317
This Alaska Airlines deal was found by Cheapflights users on 10/15. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/125:53 pmDCA - BOI
1 stop8h 06mAlaska Airlines
Wed 11/1910:05 amBOI - DCA
1 stop9h 54mAlaska Airlines
Deal found 10/15$318

Cheap flight deals from Reagan-National to Idaho

Keep the following information in mind while searching for Reagan-National to Idaho flight deals. Data was last updated October 16, 2025.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$207
(Kiwi.com)

One-way from

$107
(Kiwi.com)

Popular in

December

Cheapest in

April

Average price

$413
Provider with most accurate pricing for Washington, D.C. (WAS)-Boise Air Term. Gowen Fld flight deals.
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Provider most trusted by Cheapflights users for Washington, D.C. (WAS)-Boise Air Term. Gowen Fld flights.
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From Washington, D.C. Reagan-National to Idaho
Search Deals
One-way flight from Washington, D.C. Reagan-National to Idaho
Search Deals
Highest demand for flights based on searches. 20% potential increase in price ($111 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 6% potential price decrease ($29 potential savings vs. average RT price).
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Average for round-trip flights in October 2025
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Cheapflights Fare Finder

 
Customize your flight search to find flights from Reagan-National to Idaho that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated October 16, 2025.
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

Reagan-National

Fly to

Idaho

Route

Depart

Return

Price

Washington, D.C.Boise

DCA - BOI

DCABOI

Washington, D.C. Reagan-National

Thu 12/4

6:00 pm-11:49 am

1 stop19h 49m

Boise Air Term. Gowen Fld

Thu 12/11

12:44 pm-12:05 pm

1 stop21h 21m

$212

Washington, D.C.Hailey

DCA - SUN

DCASUN

Washington, D.C. Reagan-National

Fri 2/20

10:13 am-8:10 pm

2 stops11h 57m

Hailey Sun Valley-Friedman

Tue 2/24

1:30 pm-10:00 pm

1 stop6h 30m

$260

Washington, D.C.Boise

DCA - BOI

DCABOI

Washington, D.C. Reagan-National

Wed 10/29

2:00 pm-11:48 am

1 stop23h 48m

Boise Air Term. Gowen Fld

Sun 11/2

12:33 pm-1:02 pm

1 stop22h 29m

$268

Washington, D.C.Spokane

DCA - GEG

DCAGEG

Washington, D.C. Reagan-National

Thu 11/13

8:00 am-12:22 am

1 stop19h 22m

Spokane

Tue 11/18

11:42 am-9:59 pm

1 stop7h 17m

$306

Washington, D.C.Spokane

DCA - GEG

DCAGEG

Washington, D.C. Reagan-National

Fri 11/7

4:59 pm-10:48 pm

1 stop8h 49m

Spokane

Fri 11/14

5:00 am-3:25 pm

1 stop7h 25m

$307

Washington, D.C.Spokane

DCA - GEG

DCAGEG

Washington, D.C. Reagan-National

Wed 12/10

4:55 pm-10:49 pm

1 stop8h 54m

Spokane

Mon 12/15

5:05 am-3:27 pm

1 stop7h 22m

$307

Washington, D.C.Spokane

DCA - GEG

DCAGEG

Washington, D.C. Reagan-National

Fri 11/14

6:06 am-2:53 pm

2 stops11h 47m

Spokane

Sun 11/16

5:00 am-3:25 pm

1 stop7h 25m

$312

Washington, D.C.Spokane

DCA - GEG

DCAGEG

Washington, D.C. Reagan-National

Thu 11/13

4:56 pm-12:10 am

1 stop10h 14m

Spokane

Tue 11/18

9:20 am-11:10 pm

2 stops10h 50m

$312

Washington, D.C.Boise

DCA - BOI

DCABOI

Washington, D.C. Reagan-National

Thu 12/4

8:59 am-11:55 pm

1 stop16h 56m

Boise Air Term. Gowen Fld

Sat 1/10

7:45 am-9:00 pm

1 stop11h 15m

$316

Washington, D.C.Boise

DCA - BOI

DCABOI

Washington, D.C. Reagan-National

Wed 11/12

4:56 pm-12:07 am

1 stop9h 11m

Boise Air Term. Gowen Fld

Wed 11/19

3:04 pm-11:31 pm

1 stop6h 27m

$319

Flights are sorted by cheapest round-trip flights first.

Deals found on 10/14

Showing 1-10 of 60 results
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Best time to book a flight from Reagan-National to Idaho

Have a flexible travel schedule? Discover the best time to fly to Idaho from Reagan-National with our price prediction graph.
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Cheapflights Insights

Everything you need to know about your flight from Washington, D.C. Reagan-National Airport to Idaho

What is the cheapest month to book a flight from Washington, D.C. Reagan-National Airport to Idaho?

Currently, September is the cheapest month in which you can book a flight from Washington, D.C. Reagan-National Airport to Idaho (average of $150). Flying from Washington, D.C. Reagan-National Airport to Idaho in November is currently the most expensive (average of $447). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

What is the cheapest time of day to fly from DCA to ID?

Find hourly flight availability from Reagan-National to Idaho. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated October 16, 2025.

Unlike in the afternoon, when flights are generally more expensive, you can save up to 36% on flights from Washington, D.C. Reagan-National Airport to Idaho by exploring options for tickets in the evening.

Reviews of airlines servicing Idaho

Get insights into the airlines that provide service to Idaho. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Idaho. Reviews last updated October 16, 2025.
Read through reviews of airlines operating flights from Washington, D.C. Reagan-National Airport to Idaho, such as Delta, United Airlines, and American Airlines. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.
Delta
8.0
Very good
7,984 reviews

Overall

8.0

Comfort

7.9

Food

7.3

Boarding

8.2

Crew

8.5

Entertainment

7.9

Reviews

1 / 20
8.0
Excellent

Matthew,Oct 2025

GSP - ATL

This is always a full flight since it is the connecting route to primary destinations through Atlanta. That said, the crew handles the full load well. Not much more to say, it is a short flight with no in-flight services due to the length.
Delta
8.0
Very good
7,984 reviews
Delta
8.0
Very good
7,984 reviews

Overall

8.0

Comfort

7.9

Food

7.3

Boarding

8.2

Crew

8.5

Entertainment

7.9

Reviews

1 / 20
8.0
Excellent

Matthew,Oct 2025

GSP - ATL

This is always a full flight since it is the connecting route to primary destinations through Atlanta. That said, the crew handles the full load well. Not much more to say, it is a short flight with no in-flight services due to the length.
United Airlines
7.4
Good
8,982 reviews
Delta
8.0
Very good
7,984 reviews

Overall

8.0

Comfort

7.9

Food

7.3

Boarding

8.2

Crew

8.5

Entertainment

7.9

Reviews

1 / 20
8.0
Excellent

Matthew,Oct 2025

GSP - ATL

This is always a full flight since it is the connecting route to primary destinations through Atlanta. That said, the crew handles the full load well. Not much more to say, it is a short flight with no in-flight services due to the length.
American Airlines
7.2
Good
11,043 reviews
Delta
8.0
Very good
7,984 reviews

Overall

8.0

Comfort

7.9

Food

7.3

Boarding

8.2

Crew

8.5

Entertainment

7.9

Reviews

1 / 20
8.0
Excellent

Matthew,Oct 2025

GSP - ATL

This is always a full flight since it is the connecting route to primary destinations through Atlanta. That said, the crew handles the full load well. Not much more to say, it is a short flight with no in-flight services due to the length.

Related info for your journey

Find useful and relevant information for your journey from Reagan-National to Idaho. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • How long is the flight from Washington, D.C. Reagan-National Airport to Idaho?

    Departing from Washington, D.C. Reagan-National Airport to Idaho will take you 11h 57m. There are 1946 mi between Washington, D.C. Reagan-National Airport and Idaho. When browsing for deals, the options you’ll see will be for both nonstop flights and flights with stops.

  • What are the cheapest airlines to fly from Washington, D.C. Reagan-National Airport to Idaho one-way?

    $125 is the cheapest one-way deal found within the past few days, from United Airlines. You may also be able to find cheap deals on Frontier and Delta, with prices starting from $133 and $134, respectively.

  • What are the most popular routes from Washington, D.C. Reagan-National Airport to Idaho?

    Most travelers choose Washington, D.C. Reagan-National - Jackson Hole, Washington, D.C. Reagan-National - Boise Air Term. Gowen Fld or Washington, D.C. Reagan-National - Spokane when deciding on the best route from Washington, D.C. Reagan-National Airport to Idaho.

  • Can I find deals for flights from Reagan-National to Idaho that include hotel bookings?

    Yes. In addition to deals on Reagan-National to Idaho flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Reagan-National to Idaho?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Reagan-National to Idaho.

  • Can I find deals for business class flights from Reagan-National to Idaho?

    Yes. Cheapflights offers flight deals from Reagan-National to Idaho by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

  • What is the cheapest month to book a flight from Washington, D.C. Reagan-National Airport to Idaho?

    Currently, September is the cheapest month in which you can book a flight from Washington, D.C. Reagan-National Airport to Idaho (average of $150). Flying from Washington, D.C. Reagan-National Airport to Idaho in November is currently the most expensive (average of $447). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

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Alternative routes for Reagan-National to Idaho

See prices for flight routes from nearby airports that may be better suited for you.
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Reagan-National to Miami flights
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Baltimore to Las Vegas flights
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Dulles Intl to Hobby flights
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Reagan-National to Seattle flights
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Dulles Intl to Tampa flights
Baltimore to San Francisco flights
Baltimore to Denver flights
Dulles Intl to George Bush Intcntl flights
Baltimore to Tampa flights
Dulles Intl to John F Kennedy Intl flights
Dulles Intl to San Francisco flights
Reagan-National to Fort Lauderdale flights
Dulles Intl to Denver flights
Reagan-National to George Bush Intcntl flights
Baltimore to Sky Harbor Intl flights
Reagan-National to Nashville flights
Dulles Intl to Austin flights
Dulles Intl to Nashville flights
Baltimore to George Bush Intcntl flights
Reagan-National to Sky Harbor Intl flights

Top 3 airlines flying from Reagan-National to Idaho

Discover the top 3 airlines that operate flights from Reagan-National to Idaho. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated October 16, 2025.
AirlineCheapestAverageFlexibilityOn-time
DeltaCheapest$202Average$416FlexibilityNo cancel feeOn-timeN/A
United AirlinesCheapest$222Average$654FlexibilityNo cancel feeOn-time69%
American AirlinesCheapest$300Average$546FlexibilityNo cancel feeOn-time71%

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