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$86+ 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 9/28. Fares are subject to change and may not be available on all flights or dates of travel.
DCA — BOI
août 19 — août 261
mar. 8/19
mar. 8/26
1 adult, Economy
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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 août 14, 2025.

Round-trip from

$196
(FlightHub)

One-way from

$86
(Priceline)

Popular in

December

Cheapest in

April

Average price

$418
From Washington, D.C. Reagan-National to Idaho
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One-way flight from Washington, D.C. Reagan-National to Idaho
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Highest demand for flights based on searches. 19% potential increase in price ($105 potential increase over avg. RT price).
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Cheapest flight prices on average. 6% potential price decrease ($27 potential savings vs. average RT price).
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Average for round-trip flights in August 2025
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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 août 14, 2025.

This FlightHub deal was found by Cheapflights users on 8/14. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mer. 9/171:00 pmDCA - BOI
1 stop24h 37mFrontier
dim. 9/2112:22 pmBOI - DCA
1 stop21h 48mFrontier
Deal found 8/14$196
This Expedia deal was found by Cheapflights users on 8/14. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
jeu. 9/47:00 amDCA - BOI
1 stop6h 37mMultiple Airlines
mar. 9/96:00 amBOI - DCA
1 stop8h 06mMultiple Airlines
Deal found 8/14$219
This FlightHub deal was found by Cheapflights users on 8/14. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
jeu. 9/117:00 amDCA - BOI
1 stop6h 37mFrontier
dim. 9/1412:22 pmBOI - DCA
1 stop21h 48mFrontier
Deal found 8/14$228
This American Airlines deal was found by Cheapflights users on 8/13. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mar. 9/166:00 amDCA - JAC
1 stop7h 25mAmerican Airlines
mar. 9/233:24 pmJAC - DCA
1 stop5h 59mAmerican Airlines
Deal found 8/13$229
This Hawaiian Airlines deal was found by Cheapflights users on 8/12. 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 Hawaiian Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mar. 9/235:49 pmDCA - BOI
1 stop8h 10mHawaiian Airlines
mar. 9/308:10 amBOI - DCA
1 stop10h 49mHawaiian Airlines
Deal found 8/12$250
This American Airlines deal was found by Cheapflights users on 8/12. 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.
mar. 9/236:30 amDCA - BOI
1 stop7h 57mAmerican Airlines
mar. 9/301:57 pmBOI - DCA
2 stops9h 01mAmerican Airlines
Deal found 8/12$256
This Expedia deal was found by Cheapflights users on 8/12. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mar. 9/25:06 pmDCA - BOI
1 stop9h 02mMultiple Airlines
jeu. 9/412:22 pmBOI - DCA
1 stop7h 37mMultiple Airlines
Deal found 8/12$257
This American Airlines deal was found by Cheapflights users on 8/14. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
sam. 9/203:33 pmDCA - JAC
1 stop7h 11mAmerican Airlines
mer. 9/243:24 pmJAC - DCA
1 stop5h 59mAmerican Airlines
Deal found 8/14$259
This American Airlines deal was found by Cheapflights users on 8/14. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
sam. 10/186:59 amDCA - JAC
1 stop7h 30mAmerican Airlines
mar. 10/2112:19 pmJAC - DCA
2 stops10h 40mAmerican Airlines
Deal found 8/14$264
This Alaska Airlines deal was found by Cheapflights users on 8/12. 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.
mar. 9/235:49 pmDCA - BOI
1 stop8h 10mAlaska Airlines
sam. 9/277:07 amBOI - DCA
1 stop12h 52mAlaska Airlines
Deal found 8/12$264
This Delta deal was found by Cheapflights users on 8/12. 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.
mar. 9/236:00 amDCA - BOI
2 stops10h 15mDelta
sam. 9/275:45 amBOI - DCA
1 stop7h 45mDelta
Deal found 8/12$270
This American Airlines deal was found by Cheapflights users on 8/11. 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.
sam. 10/186:59 amDCA - BOI
1 stop7h 47mAmerican Airlines
mar. 10/281:26 pmBOI - DCA
1 stop8h 16mAmerican Airlines
Deal found 8/11$276

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 août 14, 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

mer. 9/17

1:00 pm-11:37 am

1 stop24h 37m

Boise Air Term. Gowen Fld

dim. 9/21

12:22 pm-12:10 pm

1 stop21h 48m

$196

Washington, D.C.Boise

DCA - BOI

DCABOI

Washington, D.C. Reagan-National

jeu. 9/4

7:00 am-11:37 am

1 stop6h 37m

Boise Air Term. Gowen Fld

mar. 9/9

6:00 am-4:06 pm

1 stop8h 06m

$219

Washington, D.C.Boise

DCA - BOI

DCABOI

Washington, D.C. Reagan-National

dim. 10/26

7:00 am-11:43 am

1 stop6h 43m

Boise Air Term. Gowen Fld

dim. 11/2

12:53 pm-9:59 pm

1 stop7h 06m

$228

Washington, D.C.Jackson

DCA - JAC

DCAJAC

Washington, D.C. Reagan-National

mar. 9/16

6:00 am-11:25 am

1 stop7h 25m

Jackson Hole

mar. 9/23

3:24 pm-11:23 pm

1 stop5h 59m

$229

Washington, D.C.Boise

DCA - BOI

DCABOI

Washington, D.C. Reagan-National

mar. 9/23

5:49 pm-11:59 pm

1 stop8h 10m

Boise Air Term. Gowen Fld

mar. 9/30

8:10 am-8:59 pm

1 stop10h 49m

$250

Washington, D.C.Boise

DCA - BOI

DCABOI

Washington, D.C. Reagan-National

mar. 9/9

8:00 am-3:54 pm

1 stop9h 54m

Boise Air Term. Gowen Fld

mar. 9/16

7:07 am-9:59 pm

1 stop12h 52m

$250

Washington, D.C.Boise

DCA - BOI

DCABOI

Washington, D.C. Reagan-National

mar. 9/9

5:00 am-1:17 pm

2 stops10h 17m

Boise Air Term. Gowen Fld

mar. 9/16

1:38 pm-12:58 am

1 stop9h 20m

$256

Washington, D.C.Boise

DCA - BOI

DCABOI

Washington, D.C. Reagan-National

mar. 9/23

6:30 am-12:27 pm

1 stop7h 57m

Boise Air Term. Gowen Fld

mar. 9/30

1:57 pm-12:58 am

2 stops9h 01m

$256

Washington, D.C.Boise

DCA - BOI

DCABOI

Washington, D.C. Reagan-National

mar. 9/2

5:06 pm-12:08 am

1 stop9h 02m

Boise Air Term. Gowen Fld

jeu. 9/4

12:22 pm-9:59 pm

1 stop7h 37m

$257

Washington, D.C.Jackson

DCA - JAC

DCAJAC

Washington, D.C. Reagan-National

sam. 9/20

3:33 pm-8:44 pm

1 stop7h 11m

Jackson Hole

mer. 9/24

3:24 pm-11:23 pm

1 stop5h 59m

$259

Flights are sorted by cheapest round-trip flights first.

Deals found on 8/14

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, October is the cheapest month in which you can book a flight from Washington, D.C. Reagan-National Airport to Idaho (average of $314). Flying from Washington, D.C. Reagan-National Airport to Idaho in June is currently the most expensive (average of $399). 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 août 14, 2025.

Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from Washington, D.C. Reagan-National Airport to Idaho as you normally would.

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 août 14, 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
7,980 reviews

Crew

8.5

Boarding

8.2

Food

7.3

Overall

8.0

Entertainment

7.9

Comfort

7.9

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!
Delta
8.0
Very good
7,980 reviews
Delta
8.0
Very good
7,980 reviews

Crew

8.5

Boarding

8.2

Food

7.3

Overall

8.0

Entertainment

7.9

Comfort

7.9

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!
United Airlines
7.4
Good
8,916 reviews
Delta
8.0
Very good
7,980 reviews

Crew

8.5

Boarding

8.2

Food

7.3

Overall

8.0

Entertainment

7.9

Comfort

7.9

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!
American Airlines
7.2
Good
10,000 reviews
Delta
8.0
Very good
7,980 reviews

Crew

8.5

Boarding

8.2

Food

7.3

Overall

8.0

Entertainment

7.9

Comfort

7.9

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!

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.

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

    $86 is the cheapest one-way deal found within the past few days, from Frontier. You may also be able to find cheap deals on Alaska Airlines and Delta, with prices starting from $129 and $193, 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 - Spokane or Washington, D.C. Reagan-National - Boise Air Term. Gowen Fld 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, October is the cheapest month in which you can book a flight from Washington, D.C. Reagan-National Airport to Idaho (average of $314). Flying from Washington, D.C. Reagan-National Airport to Idaho in June is currently the most expensive (average of $399). 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.
Baltimore to Dallas/Fort Worth flights
Dulles Intl to Dallas/Fort Worth flights
Reagan-National to O'Hare Intl flights
Dulles Intl to O'Hare Intl flights
Reagan-National to Los Angeles flights
Dulles Intl to Miami flights
Baltimore to Las Vegas flights
Reagan-National to Seattle flights
Reagan-National to Dallas/Fort Worth flights
Dulles Intl to Los Angeles flights
Dulles Intl to Las Vegas flights
Baltimore to Fort Lauderdale flights
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Dulles Intl to San Francisco flights
Dulles Intl to Atlanta flights
Baltimore to Orlando flights
Reagan-National to Miami flights
Reagan-National to San Francisco flights
Baltimore to Miami flights
Reagan-National to Las Vegas flights
Baltimore to Boston flights
Baltimore to Midway flights
Dulles Intl to Seattle flights
Baltimore to O'Hare Intl flights
Baltimore to Atlanta flights
Dulles Intl to Orlando flights
Baltimore to Seattle flights
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Dulles Intl to Minneapolis flights
Baltimore to San Francisco flights
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Baltimore to Los Angeles flights
Dulles Intl to Midway flights
Dulles Intl to Boston flights
Reagan-National to Atlanta flights
Baltimore to Hobby flights
Reagan-National to Minneapolis flights
Dulles Intl to Denver flights
Dulles Intl to New Orleans flights
Dulles Intl to Fort Lauderdale flights
Dulles Intl to Tampa flights
Reagan-National to Denver flights
Baltimore to Minneapolis flights
Reagan-National to Fort Lauderdale flights
Dulles Intl to Detroit flights
Reagan-National to Detroit flights
Dulles Intl to Austin flights
Reagan-National to Hobby flights
Dulles Intl to Honolulu flights
Dulles Intl to Hobby 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 août 14, 2025.
AirlineCheapestAverageFlexibilityOn-time
DeltaCheapest$202Average$383FlexibilityNo cancel feeOn-timeN/A
American AirlinesCheapest$327Average$577FlexibilityNo cancel feeOn-time71%
United AirlinesCheapest$415Average$654FlexibilityNo cancel feeOn-time69%

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