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

Delta, American Airlines, and Alaska Airlines can get you from Idaho to Washington, D.C. Reagan-National Airport in just under 7h. Your travel time can differ by up to 5h 50m. Idaho and Washington, D.C. Reagan-National Airport are separated by a distance of 2099 mi. Both multi-stop and nonstop flights can be found to your destination and back.

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 American Airlines ($125), United Airlines ($156), and Hawaiian Airlines ($158).

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.

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).

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

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

What are the most popular airlines that fly from Idaho to Washington, D.C. Reagan-National Airport?

The most popular airlines flying from Idaho to Washington, D.C. Reagan-National Airport are American Airlines, Alaska Airlines and Delta. Something to consider prior to booking your flight.

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

Due to multiple factors, expect to potentially pay more when booking in March. For low rates, August can be a great choice for travel to Washington, D.C. Reagan-National Airport. Flights to Washington, D.C. Reagan-National Airport from Idaho in August are about $419 on average during August, but can be found for as low as $204.

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.

$125+ Cheap Flights from Idaho to Washington, D.C. Reagan-National Airport

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Cheap flight deals from Idaho to Reagan-National

Round-trip from	$221 (American Airlines)
One-way from	$125 (American Airlines)
Popular in	March
Cheapest in	August
Average price	$427

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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Highest demand for flights based on searches. 3% potential increase in price ($15 potential increase over avg. RT price).

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Cheapest flight prices on average. 3% potential price decrease ($15 potential savings vs. average RT price).

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Average for round-trip flights in September 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 September 15, 2025.

Sat 10/181:12 pmGEG - DCA

1 stop7h 00mAmerican Airlines

Tue 10/216:59 amDCA - GEG

1 stop8h 21mAmerican Airlines

Deal found 9/12

$221

Mon 10/277:23 pmGEG - DCA

2 stops12h 50mDelta

Wed 11/56:00 amDCA - GEG

2 stops10h 05mDelta

Deal found 9/13

$231

Thu 9/2512:22 pmBOI - DCA

1 stop7h 37mFrontier

Sun 9/287:00 amDCA - BOI

1 stop6h 37mFrontier

Deal found 9/15

$236

Sun 11/212:33 pmBOI - DCA

1 stop7h 26mFrontier

Sat 11/156:00 pmDCA - BOI

1 stop19h 43mFrontier

Deal found 9/15

$249

Fri 10/172:17 pmGEG - DCA

1 stop6h 08mDelta

Tue 10/214:59 pmDCA - GEG

1 stop10h 00mDelta

Deal found 9/13

$249

Thu 10/1612:03 pmGEG - DCA

1 stop25h 56mFrontier

Sat 10/187:00 amDCA - GEG

1 stop31h 08mFrontier

Deal found 9/12

$255

Fri 9/2611:53 amGEG - DCA

1 stop7h 06mFrontier

Fri 10/37:00 amDCA - GEG

1 stop6h 58mFrontier

Deal found 9/13

$271

Fri 11/71:14 pmGEG - DCA

1 stop7h 42mAmerican Airlines

Fri 11/146:50 amDCA - GEG

1 stop8h 42mAmerican Airlines

Deal found 9/12

$277

Sun 9/2811:53 amGEG - DCA

1 stop21h 17mFrontier

Thu 10/26:31 pmDCA - GEG

1 stop19h 27mFrontier

Deal found 9/13

$281

Tue 10/78:20 amBOI - DCA

1 stop6h 41mUnited Airlines

Tue 10/217:00 amDCA - BOI

1 stop8h 43mUnited Airlines

Deal found 9/15

$297

Tue 10/711:41 amBOI - DCA

2 stops9h 44mDelta

Tue 10/214:59 pmDCA - BOI

1 stop9h 09mDelta

Deal found 9/15

$302

Thu 12/111:36 pmBOI - DCA

1 stop7h 23mAmerican Airlines

Tue 12/166:30 amDCA - BOI

1 stop7h 57mAmerican Airlines

Deal found 9/14

$309

Best flights from Idaho to Reagan-National
Discover carefully curated flight deals from Idaho to Reagan-National that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated September 15, 2025.

Mon 10/277:23 pmGEG - DCA

2 stops12h 50mDelta

Wed 11/54:59 pmDCA - GEG

1 stop8h 49mDelta

Deal found 9/13

$226

Sat 10/181:12 pmGEG - DCA

1 stop7h 00mAmerican Airlines

Tue 10/215:00 amDCA - GEG

2 stops9h 43mAmerican Airlines

Deal found 9/12

$226

Thu 10/169:08 pmGEG - DCA

2 stops11h 56mMultiple Airlines

Sat 10/187:00 amDCA - GEG

1 stop31h 08mMultiple Airlines

Deal found 9/12

$315

Thu 12/118:05 amBOI - DCA

2 stops10h 40mSouthwest

Tue 12/164:35 pmDCA - BOI

1 stop7h 50mSouthwest

Deal found 9/14

$343

Tue 10/286:05 amIDA - DCA

1 stop8h 48mAlaska Airlines

Wed 11/58:00 amDCA - IDA

1 stop9h 13mAlaska Airlines

Deal found 9/13

$412

Fri 3/612:45 pmJAC - DCA

1 stop7h 31mUnited Airlines

Tue 3/106:00 amDCA - JAC

1 stop9h 05mUnited Airlines

Deal found 9/14

$449

Tue 3/36:30 amGEG - DCA

2 stops9h 47mDelta

Wed 3/44:40 pmDCA - GEG

1 stop9h 05mDelta

Deal found 9/12

$226

Fri 10/172:17 pmGEG - DCA

1 stop6h 08mDelta

Tue 10/214:59 pmDCA - GEG

1 stop10h 00mDelta

Deal found 9/13

$249

Fri 11/71:40 pmBOI - DCA

1 stop8h 16mAmerican Airlines

Tue 11/117:00 amDCA - BOI

1 stop8h 46mAmerican Airlines

Deal found 9/15

$338

Tue 10/75:25 amBOI - DCA

1 stop8h 03mDelta

Tue 10/214:59 pmDCA - BOI

1 stop9h 09mDelta

Deal found 9/14

$297

Mon 10/67:45 pmBOI - DCA

2 stops13h 28mDelta

Wed 10/224:59 pmDCA - BOI

1 stop9h 00mDelta

Deal found 9/15

$335

Mon 10/271:11 pmIDA - DCA

1 stop7h 04mAmerican Airlines

Sat 11/16:59 amDCA - IDA

1 stop7h 25mAmerican Airlines

Deal found 9/15

$414

Last-minute flights from Idaho to Reagan-National
Discover last-minute flight deals from Idaho to Reagan-National. Data last updated September 15, 2025 and is based on user searches.

Thu 9/2512:22 pmBOI - DCA

1 stop7h 37mFrontier

Sun 9/287:00 amDCA - BOI

1 stop6h 37mFrontier

Deal found 9/15

$236

Fri 9/2611:53 amGEG - DCA

1 stop7h 06mFrontier

Fri 10/37:00 amDCA - GEG

1 stop6h 58mFrontier

Deal found 9/13

$271

Sun 9/2811:53 amGEG - DCA

1 stop21h 17mFrontier

Thu 10/26:31 pmDCA - GEG

1 stop19h 27mFrontier

Deal found 9/13

$281

Mon 10/67:45 pmBOI - DCA

2 stops13h 28mDelta

Tue 10/214:59 pmDCA - BOI

1 stop9h 09mDelta

Deal found 9/15

$335

Tue 10/78:20 amBOI - DCA

1 stop6h 41mUnited Airlines

Tue 10/217:00 amDCA - BOI

1 stop8h 43mUnited Airlines

Deal found 9/15

$297

Tue 10/711:41 amBOI - DCA

2 stops9h 44mDelta

Tue 10/214:59 pmDCA - BOI

1 stop9h 09mDelta

Deal found 9/15

$302

Thu 10/1612:03 pmGEG - DCA

1 stop25h 56mFrontier

Sat 10/187:00 amDCA - GEG

1 stop31h 08mFrontier

Deal found 9/12

$255

Fri 10/172:17 pmGEG - DCA

1 stop6h 08mDelta

Tue 10/214:59 pmDCA - GEG

1 stop10h 00mDelta

Deal found 9/13

$249

Sat 10/181:12 pmGEG - DCA

1 stop7h 00mAmerican Airlines

Tue 10/216:59 amDCA - GEG

1 stop8h 21mAmerican Airlines

Deal found 9/12

$221

Thu 10/239:08 pmGEG - DCA

2 stops40h 51mMultiple Airlines

Wed 10/298:00 amDCA - GEG

1 stop30h 08mMultiple Airlines

Deal found 9/14

$312

Thu 10/2312:03 pmGEG - DCA

1 stop25h 56mFrontier

Wed 10/298:00 amDCA - GEG

1 stop30h 08mFrontier

Deal found 9/14

$314

Mon 10/277:23 pmGEG - DCA

2 stops12h 50mDelta

Wed 11/56:00 amDCA - GEG

2 stops10h 05mDelta

Deal found 9/13

$231

One-way flights from Idaho to Reagan-National
Search for one-way flight options from Idaho to Reagan-National. Find affordable one-way fares based on user searches. Data last updated September 15, 2025.

Wed 10/221:24 pmJAC - DCA

1 stop9h 35mAmerican Airlines

Deal found 9/15

$125

Tue 12/97:00 amGEG - DCA

1 stop11h 02mAlaska Airlines

Deal found 9/15

$144

Tue 12/166:39 amBOI - DCA

1 stop7h 15mAmerican Airlines

Deal found 9/15

$149

Tue 12/1611:10 amBOI - DCA

2 stops10h 05mDelta

Deal found 9/15

$154

Thu 10/2312:40 pmJAC - DCA

1 stop8h 03mUnited Airlines

Deal found 9/14

$156

Mon 12/157:00 amGEG - DCA

1 stop11h 02mAlaska Airlines

Deal found 9/13

$157

Sat 10/187:00 amGEG - DCA

1 stop10h 29mHawaiian Airlines

Deal found 9/15

$158

Tue 10/2810:05 amBOI - DCA

1 stop9h 54mHawaiian Airlines

Deal found 9/15

$160

Thu 10/307:00 amGEG - DCA

1 stop11h 05mAlaska Airlines

Deal found 9/13

$160

Mon 11/241:33 pmBOI - DCA

1 stop8h 28mAmerican Airlines

Deal found 9/14

$161

Thu 10/1612:28 pmBOI - DCA

1 stop7h 31mFrontier

Deal found 9/14

$162

Thu 10/2312:03 pmGEG - DCA

1 stop6h 56mFrontier

Deal found 9/14

$162

Cheapflights Fare Finder

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

Fly to

Route

Depart

Return

Price

SpokaneWashington, D.C.

GEG - DCA

GEGDCA

Spokane

Mon 10/27

7:23 pm-11:13 am

2 stops12h 50m

Washington, D.C. Reagan-National

Wed 11/5

4:59 pm-10:48 pm

1 stop8h 49m

$226

SpokaneWashington, D.C.

GEG - DCA

GEGDCA

Spokane

Sat 10/18

1:12 pm-11:12 pm

1 stop7h 00m

Washington, D.C. Reagan-National

Tue 10/21

5:00 am-11:43 am

2 stops9h 43m

$226

SpokaneWashington, D.C.

GEG - DCA

GEGDCA

Spokane

Tue 3/3

6:30 am-7:17 pm

2 stops9h 47m

Washington, D.C. Reagan-National

Wed 3/4

4:40 pm-10:45 pm

1 stop9h 05m

$226

SpokaneWashington, D.C.

GEG - DCA

GEGDCA

Spokane

Fri 10/17

2:17 pm-11:25 pm

1 stop6h 08m

Washington, D.C. Reagan-National

Tue 10/21

4:59 pm-11:59 pm

1 stop10h 00m

$249

BoiseWashington, D.C.

BOI - DCA

BOIDCA

Boise Air Term. Gowen Fld

Tue 10/7

5:25 am-3:28 pm

1 stop8h 03m

Washington, D.C. Reagan-National

Tue 10/21

4:59 pm-12:08 am

1 stop9h 09m

$297

SpokaneWashington, D.C.

GEG - DCA

GEGDCA

Spokane

Thu 10/16

9:08 pm-12:04 pm

2 stops11h 56m

Washington, D.C. Reagan-National

Sat 10/18

7:00 am-11:08 am

1 stop31h 08m

$315

BoiseWashington, D.C.

BOI - DCA

BOIDCA

Boise Air Term. Gowen Fld

Mon 10/6

7:45 pm-11:13 am

2 stops13h 28m

Washington, D.C. Reagan-National

Wed 10/22

4:59 pm-11:59 pm

1 stop9h 00m

$335

BoiseWashington, D.C.

BOI - DCA

BOIDCA

Boise Air Term. Gowen Fld

Mon 10/6

7:45 pm-11:13 am

2 stops13h 28m

Washington, D.C. Reagan-National

Tue 10/21

4:59 pm-12:08 am

1 stop9h 09m

$335

BoiseWashington, D.C.

BOI - DCA

BOIDCA

Boise Air Term. Gowen Fld

Fri 11/7

1:40 pm-11:56 pm

1 stop8h 16m

Washington, D.C. Reagan-National

Tue 11/11

7:00 am-1:46 pm

1 stop8h 46m

$338

BoiseWashington, D.C.

BOI - DCA

BOIDCA

Boise Air Term. Gowen Fld

Thu 12/11

8:05 am-8:45 pm

2 stops10h 40m

Washington, D.C. Reagan-National

Tue 12/16

4:35 pm-10:25 pm

1 stop7h 50m

$343

Flights are sorted by cheapest round-trip flights first.

Deals found on 9/15

Showing 1-10 of 60 results

...

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 March is currently the most expensive (average of $335). 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?

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.

Related info for your journey

How long is the flight from Idaho to Washington, D.C. Reagan-National Airport?
Delta, American Airlines, and Alaska Airlines can get you from Idaho to Washington, D.C. Reagan-National Airport in just under 7h. Your travel time can differ by up to 5h 50m. Idaho and Washington, D.C. Reagan-National Airport are separated by a distance of 2099 mi. Both multi-stop and nonstop flights can be found to your destination and back.
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 American Airlines ($125), United Airlines ($156), and Hawaiian Airlines ($158).
What are the most popular routes from Idaho to Washington, D.C. Reagan-National Airport?
Most travelers choose Spokane - Washington, D.C. Reagan-National, Boise Air Term. Gowen Fld - Washington, D.C. Reagan-National or Idaho Falls Fanning Field - 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 March is currently the most expensive (average of $335). 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

Woodbridge

Alexandria

Arlington

Tysons

Silver Spring

Springfield

Gaithersburg

Fredericksburg

Linthicum Heights

Fairfax

Falls Church

Owings Mills

Manassas

Rockville

Hanover

Oxon Hill

Laurel

Towson

Dundalk

National Harbor

Browse thousands of different options on Cheapflights for your next trip

Top 5 airlines flying from Idaho to Reagan-National

Airline	Cheapest	Average	Flexibility	On-time
Delta	Cheapest$249	Average$487	FlexibilityNo cancel fee	On-timeN/A
Alaska Airlines	Cheapest$300	Average$485	FlexibilityNo cancel fee	On-time75%
American Airlines	Cheapest$300	Average$522	FlexibilityNo cancel fee	On-time71%
United Airlines	Cheapest$349	Average$639	FlexibilityNo cancel fee	On-time69%
Southwest	Cheapest$403	Average$543	FlexibilityNo cancel fee	On-time63%

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$125+ 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 10/22. Fares are subject to change and may not be available on all flights or dates of travel.

Find cheap flights from Idaho to Reagan-National with Cheapflights

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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 September 15, 2025.

Round-trip from

One-way from

Popular in

Cheapest in

Average price

Find flight deals from Idaho to Reagan-National

Cheapest flights from Idaho to Reagan-NationalExplore 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 September 15, 2025.

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 September 15, 2025.

Cheapflights Fare Finder

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

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.

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?

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 September 15, 2025.

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.

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

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

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

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

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

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

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

Traveling to a place near Washington, D.C. Reagan-National Airport?

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Alternative routes for Idaho to Reagan-National

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Top 5 airlines flying from Idaho to Reagan-National

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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 September 15, 2025.