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$153+ 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 1/20. Fares are subject to change and may not be available on all flights or dates of travel.
DCA — BOI
Jan 4 — Jan 111
Sat 1/4
Sat 1/11
1 adult, Economy
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Cheap flight deals from Reagan-National to Idaho

Discover tips and strategies to find the most affordable flight options for your journey from Reagan-National (DCA) to Idaho (USID). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated December 30, 2024.

Round-trip from

$278
(Alaska Airlines)

One-way from

$153
(Delta)
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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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 December 30, 2024.

This Alaska Airlines deal was found by Cheapflights users on 12/29. 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.
Tue 12/319:20 amDCA - BOI
1 stop15h 38mAlaska Airlines
Sun 1/55:00 pmBOI - DCA
1 stop22h 53mAlaska Airlines
Deal found 12/29$957
This Alaska Airlines deal was found by Cheapflights users on 12/29. 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.
Tue 12/318:00 amDCA - IDA
1 stop8h 56mAlaska Airlines
Sat 1/46:00 amIDA - DCA
1 stop8h 40mAlaska Airlines
Deal found 12/29$1,006
This Delta deal was found by Cheapflights users on 12/29. 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.
Sun 12/297:07 pmDCA - BOI
1 stop6h 48mDelta
Wed 1/15:32 amBOI - DCA
1 stop6h 28mDelta
Deal found 12/29$1,046
This Southwest deal was found by Cheapflights users on 12/29. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/312:00 pmDCA - BOI
2 stops10h 55mSouthwest
Sun 1/56:05 amBOI - DCA
2 stops10h 05mSouthwest
Deal found 12/29$1,056
This American Airlines deal was found by Cheapflights users on 12/29. 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.
Tue 12/315:01 amDCA - BOI
2 stops9h 32mAmerican Airlines
Sun 1/51:23 pmBOI - DCA
1 stop7h 45mAmerican Airlines
Deal found 12/29$1,140
This American Airlines deal was found by Cheapflights users on 12/28. 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.
Mon 12/3010:13 pmDCA - JAC
2 stops15h 58mAmerican Airlines
Fri 1/33:23 pmJAC - DCA
1 stop7h 27mAmerican Airlines
Deal found 12/28$1,500
This American Airlines deal was found by Cheapflights users on 12/29. 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.
Tue 12/3111:48 amDCA - IDA
2 stops12h 33mAmerican Airlines
Sat 1/45:25 amIDA - DCA
2 stops13h 35mAmerican Airlines
Deal found 12/29$1,607

Find flights from Reagan-National to Idaho within your budget

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 December 30, 2024.

Fly from

Any airport

Fly to

Any airport

Route

Depart

Return

Price

Washington, D.C.Spokane

DCA - GEG

DCAGEG

Washington, D.C. Reagan-National

Tue 1/28

5:29 pm-11:43 pm

1 stop9h 14m

Spokane

Tue 2/4

5:48 pm-4:29 pm

1 stop19h 41m

$278

Washington, D.C.Spokane

DCA - GEG

DCAGEG

Washington, D.C. Reagan-National

Wed 1/22

5:55 pm-12:03 am

2 stops9h 08m

Spokane

Thu 1/30

2:10 pm-11:43 pm

1 stop6h 33m

$297

Washington, D.C.Jackson

DCA - JAC

DCAJAC

Washington, D.C. Reagan-National

Tue 1/28

5:00 am-12:07 pm

1 stop9h 07m

Jackson Hole

Tue 2/4

3:02 pm-12:45 am

1 stop7h 43m

$313

Washington, D.C.Boise

DCA - BOI

DCABOI

Washington, D.C. Reagan-National

Sat 2/22

5:10 pm-11:02 pm

1 stop7h 52m

Boise Air Term. Gowen Fld

Tue 2/25

5:30 am-1:57 pm

1 stop6h 27m

$319

Washington, D.C.Jackson

DCA - JAC

DCAJAC

Washington, D.C. Reagan-National

Tue 1/28

9:55 am-4:39 pm

2 stops8h 44m

Jackson Hole

Tue 2/4

7:05 am-6:53 pm

2 stops9h 48m

$324

Washington, D.C.Boise

DCA - BOI

DCABOI

Washington, D.C. Reagan-National

Fri 1/24

5:29 pm-11:58 pm

1 stop8h 29m

Boise Air Term. Gowen Fld

Sun 2/2

6:50 pm-4:32 pm

1 stop19h 42m

$328

Washington, D.C.Lewiston

DCA - LWS

DCALWS

Washington, D.C. Reagan-National

Tue 1/28

3:35 pm-10:59 pm

2 stops10h 24m

Lewiston Nez Perce Rgnl

Tue 2/4

7:00 am-10:19 pm

2 stops12h 19m

$333

Washington, D.C.Idaho Falls

DCA - IDA

DCAIDA

Washington, D.C. Reagan-National

Sat 2/22

6:13 am-12:26 pm

1 stop8h 13m

Idaho Falls Fanning Field

Wed 2/26

12:56 pm-12:45 am

1 stop9h 49m

$339

Washington, D.C.Idaho Falls

DCA - IDA

DCAIDA

Washington, D.C. Reagan-National

Sat 2/22

5:10 pm-10:44 pm

1 stop7h 34m

Idaho Falls Fanning Field

Wed 2/26

6:58 pm-8:58 am

2 stops12h 00m

$344

Washington, D.C.Boise

DCA - BOI

DCABOI

Washington, D.C. Reagan-National

Fri 1/24

1:45 pm-9:52 pm

2 stops10h 07m

Boise Air Term. Gowen Fld

Sun 2/2

1:28 pm-12:40 am

1 stop9h 12m

$357

Flights are sorted by cheapest round-trip flights first.

Deals found on 12/28

Showing 1-10 of 38 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.

Travel insights for flights from Reagan-National to Idaho

Get recent, data-driven insights about flights from Reagan-National to Idaho including ideal travel times, pricing trends, and more.

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 $436). 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 December 30, 2024.

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.

Rainfall in Idaho by month

Plan your trip to Idaho by taking into account the average rainfall totals by month.

In terms of precipitation, rainfall in Idaho ranges from 0.2 - 1.6 inches per month. December is typically the wettest month, when rainfall can reach 1.6 in. August is typically the driest time to visit Idaho when rainfall is around 0.2 in.

Temperature in Idaho by month

Plan your trip to Idaho by taking into account the average temperature totals by month.

If weather is an important factor for your trip to Idaho, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 75.2 F. Travelers looking to avoid the cold should look outside of December, when temperatures are typically at their lowest (around 30.2 F).

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 December 30, 2024.
To help decide which airline to fly from Washington, D.C. to Idaho, see what other customers have to say about Delta, Southwest and United Airlines. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.
Southwest
8.1
Very good
4,715 reviews

Overall

8.1

Crew

8.7

Boarding

8.2

Comfort

8.1

Entertainment

7.7

Food

7.2

Reviews

1 / 10

We BARELY made the connection and when we got onboard we were treated like disobedient children who should have arrived earlier because we had to ask other passengers to move so we could sit with our kids. The flight attendants on the first flight were nice but the second one, they were snippy and fairly rude.

Southwest
8.1
Very good
4,715 reviews
Southwest
8.1
Very good
4,715 reviews

Overall

8.1

Crew

8.7

Boarding

8.2

Comfort

8.1

Entertainment

7.7

Food

7.2

Reviews

1 / 10

We BARELY made the connection and when we got onboard we were treated like disobedient children who should have arrived earlier because we had to ask other passengers to move so we could sit with our kids. The flight attendants on the first flight were nice but the second one, they were snippy and fairly rude.

Alaska Airlines
8.0
Very good
9,594 reviews
Southwest
8.1
Very good
4,715 reviews

Overall

8.1

Crew

8.7

Boarding

8.2

Comfort

8.1

Entertainment

7.7

Food

7.2

Reviews

1 / 10

We BARELY made the connection and when we got onboard we were treated like disobedient children who should have arrived earlier because we had to ask other passengers to move so we could sit with our kids. The flight attendants on the first flight were nice but the second one, they were snippy and fairly rude.

Delta
8.0
Very good
8,540 reviews
Southwest
8.1
Very good
4,715 reviews

Overall

8.1

Crew

8.7

Boarding

8.2

Comfort

8.1

Entertainment

7.7

Food

7.2

Reviews

1 / 10

We BARELY made the connection and when we got onboard we were treated like disobedient children who should have arrived earlier because we had to ask other passengers to move so we could sit with our kids. The flight attendants on the first flight were nice but the second one, they were snippy and fairly rude.

United Airlines
7.4
Good
8,985 reviews
Southwest
8.1
Very good
4,715 reviews

Overall

8.1

Crew

8.7

Boarding

8.2

Comfort

8.1

Entertainment

7.7

Food

7.2

Reviews

1 / 10

We BARELY made the connection and when we got onboard we were treated like disobedient children who should have arrived earlier because we had to ask other passengers to move so we could sit with our kids. The flight attendants on the first flight were nice but the second one, they were snippy and fairly rude.

American Airlines
7.2
Good
10,000 reviews
Southwest
8.1
Very good
4,715 reviews

Overall

8.1

Crew

8.7

Boarding

8.2

Comfort

8.1

Entertainment

7.7

Food

7.2

Reviews

1 / 10

We BARELY made the connection and when we got onboard we were treated like disobedient children who should have arrived earlier because we had to ask other passengers to move so we could sit with our kids. The flight attendants on the first flight were nice but the second one, they were snippy and fairly rude.

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?

    $153 is the cheapest one-way deal found within the past few days, from Delta. You may also be able to find cheap deals on American Airlines and United Airlines, with prices starting from $199 and $295, 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 $436). 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.

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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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Dulles Intl to San Francisco flights
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Dulles Intl to O'Hare Intl flights
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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 December 30, 2024.
AirlineCheapestAverageFlexibilityOn-time
DeltaCheapest$316Average$481FlexibilityNo cancel feeOn-timeN/A
American AirlinesCheapest$407Average$665FlexibilityNo cancel feeOn-time71%
United AirlinesCheapest$454Average$866FlexibilityNo cancel feeOn-time69%
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