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Reagan-National

$100+ Cheap flights from Idaho to Reagan-National (DCA)

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 8/19. Fares are subject to change and may not be available on all flights or dates of travel.
BOI — DCA
Jun 17 — Jun 241
Tue 6/17
Tue 6/24
1 adult, Economy
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Cheap flight deals from Idaho to Reagan-National

Keep the following information in mind while searching for Idaho to Reagan-National flight deals. Data was last updated June 12, 2025.

Round-trip from

$199
(American Airlines)

One-way from

$100
(Delta)

Popular in

March

Cheapest in

February

Average price

$406
From Idaho to Washington, D.C. Reagan-National
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One-way flight from Idaho to Washington, D.C. Reagan-National
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High demand for flights, 1% potential price rise
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Cheapest flight prices on average. 2% potential price decrease ($13 potential savings vs. average RT price).
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Average for round-trip flights in June 2025
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Find flight deals from Idaho to Reagan-National

Cheapest flights from Idaho to Reagan-National
Explore the most affordable flight options available from Idaho to Reagan-National. Find the lowest fares from popular airlines and budget airlines, with prices last updated on June 12, 2025.

This American Airlines deal was found by Cheapflights users on 6/10. 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 9/21:08 pmGEG - DCA
1 stop7h 42mAmerican Airlines
Tue 9/93:33 pmDCA - GEG
1 stop10h 19mAmerican Airlines
Deal found 6/10$199
This Delta deal was found by Cheapflights users on 6/12. 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.
Sat 9/205:05 amGEG - DCA
1 stop7h 30mDelta
Sat 9/274:40 pmDCA - GEG
2 stops8h 59mDelta
Deal found 6/12$234
This Hawaiian Airlines deal was found by Cheapflights users on 6/10. 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.
Wed 10/157:21 amBOI - DCA
1 stop11h 08mHawaiian Airlines
Wed 10/228:00 amDCA - BOI
1 stop8h 35mHawaiian Airlines
Deal found 6/10$284
This American Airlines deal was found by Cheapflights users on 6/11. 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.
Wed 8/271:07 pmBOI - DCA
1 stop8h 43mAmerican Airlines
Sun 8/317:00 amDCA - BOI
1 stop7h 19mAmerican Airlines
Deal found 6/11$285
This Alaska Airlines deal was found by Cheapflights users on 6/10. 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 7/239:45 amGEG - DCA
1 stop9h 14mAlaska Airlines
Wed 7/308:59 amDCA - GEG
1 stop17h 45mAlaska Airlines
Deal found 6/10$289
This Delta deal was found by Cheapflights users on 6/10. 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 8/271:30 pmBOI - DCA
1 stop8h 16mDelta
Sun 8/318:59 amDCA - BOI
2 stops9h 58mDelta
Deal found 6/10$290
This Alaska Airlines deal was found by Cheapflights users on 6/10. 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 8/217:07 amBOI - DCA
1 stop12h 52mAlaska Airlines
Mon 8/258:00 amDCA - BOI
1 stop9h 00mAlaska Airlines
Deal found 6/10$296
This United Airlines deal was found by Cheapflights users on 6/10. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/3012:35 pmBOI - DCA
1 stop6h 20mUnited Airlines
Mon 11/34:07 pmDCA - BOI
1 stop7h 09mUnited Airlines
Deal found 6/10$297
This Southwest deal was found by Cheapflights users on 6/10. 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.
Thu 8/211:10 pmBOI - DCA
1 stop8h 15mSouthwest
Mon 8/253:55 pmDCA - BOI
2 stops10h 10mSouthwest
Deal found 6/10$302
This United Airlines deal was found by Cheapflights users on 6/10. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 7/2311:37 amGEG - DCA
1 stop6h 25mUnited Airlines
Wed 7/307:00 amDCA - GEG
1 stop10h 47mUnited Airlines
Deal found 6/10$306
This United Airlines deal was found by Cheapflights users on 6/11. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 6/267:31 amJAC - DCA
1 stop7h 30mUnited Airlines
Mon 6/306:25 amDCA - JAC
1 stop7h 05mUnited Airlines
Deal found 6/11$339
This Hawaiian Airlines deal was found by Cheapflights users on 6/10. 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.
Tue 9/167:00 amGEG - DCA
1 stop11h 59mHawaiian Airlines
Fri 9/195:06 pmDCA - GEG
1 stop9h 53mHawaiian Airlines
Deal found 6/10$357

Cheapflights Fare Finder

Customize your flight search to find flights from Idaho to Reagan-National 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 June 12, 2025.
Use the filters below to find and compare flights from Idaho to Washington, D.C. Reagan-National Airport that are best for you.

Fly from

Idaho

Fly to

Reagan-National

Route

Depart

Return

Price

SpokaneWashington, D.C.

GEG - DCA

GEGDCA

Spokane

Tue 9/2

1:08 pm-11:50 pm

1 stop7h 42m

Washington, D.C. Reagan-National

Tue 9/9

3:33 pm-10:52 pm

1 stop10h 19m

$199

SpokaneWashington, D.C.

GEG - DCA

GEGDCA

Spokane

Sat 9/20

5:05 am-3:35 pm

1 stop7h 30m

Washington, D.C. Reagan-National

Sat 9/27

4:40 pm-10:39 pm

2 stops8h 59m

$234

BoiseWashington, D.C.

BOI - DCA

BOIDCA

Boise Air Term. Gowen Fld

Wed 8/27

1:07 pm-11:50 pm

1 stop8h 43m

Washington, D.C. Reagan-National

Sun 8/31

7:00 am-12:19 pm

1 stop7h 19m

$285

SpokaneWashington, D.C.

GEG - DCA

GEGDCA

Spokane

Wed 7/23

9:45 am-9:59 pm

1 stop9h 14m

Washington, D.C. Reagan-National

Wed 7/30

8:59 am-11:44 pm

1 stop17h 45m

$289

BoiseWashington, D.C.

BOI - DCA

BOIDCA

Boise Air Term. Gowen Fld

Wed 8/27

6:35 am-4:49 pm

1 stop8h 14m

Washington, D.C. Reagan-National

Mon 9/1

5:49 pm-11:59 pm

1 stop8h 10m

$290

BoiseWashington, D.C.

BOI - DCA

BOIDCA

Boise Air Term. Gowen Fld

Thu 8/21

7:07 am-9:59 pm

1 stop12h 52m

Washington, D.C. Reagan-National

Mon 8/25

8:00 am-3:00 pm

1 stop9h 00m

$296

BoiseWashington, D.C.

BOI - DCA

BOIDCA

Boise Air Term. Gowen Fld

Thu 8/21

1:10 pm-11:25 pm

1 stop8h 15m

Washington, D.C. Reagan-National

Mon 8/25

3:55 pm-12:05 am

2 stops10h 10m

$302

SpokaneWashington, D.C.

GEG - DCA

GEGDCA

Spokane

Wed 7/23

11:37 am-9:02 pm

1 stop6h 25m

Washington, D.C. Reagan-National

Wed 7/30

7:00 am-2:47 pm

1 stop10h 47m

$306

BoiseWashington, D.C.

BOI - DCA

BOIDCA

Boise Air Term. Gowen Fld

Wed 7/9

12:39 pm-9:02 pm

1 stop6h 23m

Washington, D.C. Reagan-National

Tue 7/15

7:00 am-1:58 pm

1 stop8h 58m

$319

BoiseWashington, D.C.

BOI - DCA

BOIDCA

Boise Air Term. Gowen Fld

Wed 7/9

5:40 am-1:58 pm

1 stop6h 18m

Washington, D.C. Reagan-National

Tue 7/15

3:40 pm-11:59 pm

2 stops10h 19m

$324

Flights are sorted by cheapest round-trip flights first.

Deals found on 6/11

Showing 1-10 of 55 results
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Best time to book a flight from Idaho to Reagan-National

Have a flexible travel schedule? Discover the best time to fly to Reagan-National from Idaho 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 Idaho to Washington, D.C. Reagan-National Airport

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

Currently, February is the cheapest month in which you can book a flight from Idaho to Washington, D.C. Reagan-National Airport (average of $278). Flying from Idaho to Washington, D.C. Reagan-National Airport in June is currently the most expensive (average of $337). 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 ID to DCA?

Find hourly flight availability from Idaho to Reagan-National. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated June 12, 2025.

When flying from Idaho to Washington, D.C. Reagan-National Airport, the time of day you decide to fly out makes little to no difference towards the overall price you’ll pay on tickets.

Rainfall in Reagan-National by month

Plan your trip to Reagan-National by taking into account the average rainfall totals by month.

In terms of precipitation, rainfall in Washington, D.C. Reagan-National Airport ranges from 2.6 - 4.0 inches per month. May is typically the wettest month, when rainfall can reach 4.0 in. February is typically the driest time to visit Washington, D.C. Reagan-National Airport when rainfall is around 2.6 in.

Temperature in Reagan-National by month

Plan your trip to Reagan-National by taking into account the average temperature totals by month.

If weather is an important factor for your trip to Washington, D.C. Reagan-National Airport, 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 80.6 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 35.6 F).

Reviews of airlines servicing Reagan-National

Get insights into the airlines that provide service to Reagan-National. 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 Reagan-National. Reviews last updated June 12, 2025.
To help decide which airline to fly from Idaho to Washington, D.C., see what other customers have to say about Alaska Airlines, Southwest and Delta. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
Alaska Airlines
8.0
Very good
10,000 reviews

Boarding

8.1

Food

7.1

Crew

8.5

Comfort

7.8

Overall

8.0

Entertainment

7.1

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.
Alaska Airlines
8.0
Very good
10,000 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Boarding

8.1

Food

7.1

Crew

8.5

Comfort

7.8

Overall

8.0

Entertainment

7.1

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.
Southwest
8.0
Very good
4,287 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Boarding

8.1

Food

7.1

Crew

8.5

Comfort

7.8

Overall

8.0

Entertainment

7.1

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.
Delta
8.0
Very good
7,950 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Boarding

8.1

Food

7.1

Crew

8.5

Comfort

7.8

Overall

8.0

Entertainment

7.1

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.
Hawaiian Airlines
7.9
Good
2,494 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Boarding

8.1

Food

7.1

Crew

8.5

Comfort

7.8

Overall

8.0

Entertainment

7.1

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.
United Airlines
7.4
Good
8,790 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Boarding

8.1

Food

7.1

Crew

8.5

Comfort

7.8

Overall

8.0

Entertainment

7.1

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.

Related info for your journey

Find useful and relevant information for your journey from Idaho to Reagan-National. 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 Idaho to Washington, D.C. Reagan-National Airport one-way?

    The cheapest airlines for a one-way flight from Idaho to Washington, D.C. Reagan-National Airport are Delta ($100), Hawaiian Airlines ($105), and United Airlines ($120).

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

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

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

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

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

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

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

    Yes. Cheapflights offers flight deals from Idaho to Reagan-National 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 Idaho to Washington, D.C. Reagan-National Airport?

    Currently, February is the cheapest month in which you can book a flight from Idaho to Washington, D.C. Reagan-National Airport (average of $278). Flying from Idaho to Washington, D.C. Reagan-National Airport in June is currently the most expensive (average of $337). 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

Traveling to a place near Idaho?

Book flights to Idaho if you plan to visit one of these locations
Arlington
Alexandria
Woodbridge
Tysons
Silver Spring
Linthicum Heights
Fredericksburg
Gaithersburg
Fairfax
Falls Church
Easton
Herndon
Towson
Bowie
Rockville
Reston
National Harbor
Springfield
Manassas
Dundalk

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Alternative routes for Idaho to Reagan-National

See prices for flight routes from nearby airports that may be better suited for you.
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Los Angeles to Reagan-National flights
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San Francisco to Baltimore flights
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Orlando to Reagan-National flights
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Denver to Reagan-National flights
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Denver to Dulles Intl flights
George Bush Intcntl to Baltimore flights
Tampa to Baltimore flights
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Minneapolis to Dulles Intl flights
Midway to Dulles Intl flights
Fort Lauderdale to Baltimore flights
George Bush Intcntl to Reagan-National flights
Detroit to Reagan-National flights
Fort Lauderdale to Dulles Intl flights
John F Kennedy Intl to Reagan-National flights
Miami to Dulles Intl flights
Burbank to Baltimore flights
Miami to Reagan-National flights
Miami to Baltimore flights
Detroit to Baltimore flights
Minneapolis to Baltimore flights
Newark to Dulles Intl flights

Top 5 airlines flying from Idaho to Reagan-National

Discover the top 5 airlines that operate flights from Idaho to Reagan-National. 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 June 12, 2025.
AirlineCheapestAverageFlexibilityOn-time
American AirlinesCheapest$300Average$564FlexibilityNo cancel feeOn-time71%
DeltaCheapest$300Average$471FlexibilityNo cancel feeOn-timeN/A
Alaska AirlinesCheapest$329Average$532FlexibilityNo cancel feeOn-time75%
United AirlinesCheapest$370Average$648FlexibilityNo cancel feeOn-time69%
SouthwestCheapest$403Average$543FlexibilityNo cancel feeOn-time63%

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