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 Frontier ($99), Alaska Airlines ($139), and Hawaiian Airlines ($148).

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 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.

How far in advance should I book a flight from Idaho to Washington, D.C. Reagan-National Airport?

To save on the cost of your flight from Idaho to Washington, D.C. Reagan-National Airport, book at least 38 days before your planned departure. Booking around this time can save you about 169% on the cost of this flight compared to booking a flight leaving this week. We have found prices from $506 if you need a flight within two weeks. For flights within the next 72 hours, you can find tickets from as low as $1,051.

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, February 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 February are about $469 on average during February, but can be found for as low as $300.

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.

$99+ Flights from Idaho to Washington, D.C. Reagan-National Airport - Compare & Save Big

Home Search by date Vacation packages Hotels Flight deals Car rental Travel tips & news

Find cheap flights from Idaho to Reagan-National with Cheapflights

1. Tell us where you want to go

Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”

2. Select your favorite providers

We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.

3. Compare prices and book

Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.

Cheap flight deals from Idaho to Reagan-National

Most accurate provider	FlightHub 3 stars
Most trusted provider	eDreams 3 stars
Round-trip from	$296 (Alaska Airlines)
One-way from	$99 (Frontier)
Popular in	March
Cheapest in	February
Average price	$374

Provider with most accurate pricing for Boise Air Term. Gowen Fld-Washington, D.C. (WAS) flight deals.

Search Deals

Provider most trusted by Cheapflights users for Boise Air Term. Gowen Fld-Washington, D.C. (WAS) flights.

Search Deals

From Idaho to Washington, D.C. Reagan-National

Search Deals

One-way flight from Idaho to Washington, D.C. Reagan-National

Search Deals

High demand for flights, 7% potential price rise

Search Deals

Cheapest flight prices on average. 1% potential price decrease ($10 potential savings vs. average RT price).

Search Deals

Average for round-trip flights in April 2025

Search Deals

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 April 30, 2025.

Wed 5/2111:33 amGEG - DCA

1 stop7h 26mAlaska Airlines

Sun 5/259:59 amDCA - GEG

1 stop16h 48mAlaska Airlines

Deal found 4/28

$296

Wed 5/212:10 pmGEG - DCA

1 stop6h 16mDelta

Sun 5/257:50 amDCA - GEG

1 stop7h 56mDelta

Deal found 4/28

$297

Tue 8/128:54 amBOI - DCA

1 stop10h 05mAlaska Airlines

Mon 8/189:59 amDCA - BOI

1 stop14h 55mAlaska Airlines

Deal found 4/28

$300

Wed 6/113:35 pmBOI - DCA

1 stop7h 16mAmerican Airlines

Wed 6/183:25 pmDCA - BOI

1 stop8h 29mAmerican Airlines

Deal found 4/28

$301

Thu 6/1911:40 pmBOI - DCA

1 stop9h 20mDelta

Tue 6/243:40 pmDCA - BOI

2 stops10h 34mDelta

Deal found 4/29

$306

Fri 5/2311:37 amGEG - DCA

1 stop8h 05mUnited Airlines

Mon 5/266:25 amDCA - GEG

1 stop7h 31mUnited Airlines

Deal found 4/29

$318

Sun 6/812:36 pmBOI - DCA

1 stop7h 23mFrontier

Wed 6/116:00 pmDCA - BOI

1 stop19h 47mFrontier

Deal found 4/28

$321

Thu 7/106:00 amGEG - DCA

1 stop7h 43mHawaiian Airlines

Mon 7/145:02 pmDCA - GEG

1 stop9h 57mHawaiian Airlines

Deal found 4/29

$331

Wed 6/48:55 amBOI - DCA

1 stop10h 10mMultiple Airlines

Sun 6/87:00 amDCA - BOI

1 stop6h 47mMultiple Airlines

Deal found 4/27

$335

Fri 9/263:29 pmJAC - DCA

1 stop6h 21mAmerican Airlines

Sun 10/129:00 amDCA - JAC

1 stop8h 21mAmerican Airlines

Deal found 4/29

$343

Tue 8/126:00 amBOI - DCA

2 stops10h 00mSouthwest

Mon 8/184:40 pmDCA - BOI

2 stops9h 45mSouthwest

Deal found 4/28

$346

Thu 9/1112:10 pmGEG - DCA

1 stop8h 15mSouthwest

Sun 9/148:35 amDCA - GEG

2 stops11h 00mSouthwest

Deal found 4/28

$352

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 April 30, 2025.

Wed 5/2111:33 amGEG - DCA

1 stop7h 26mAlaska Airlines

Sun 5/259:59 amDCA - GEG

1 stop16h 48mAlaska Airlines

Deal found 4/28

$296

Wed 5/212:10 pmGEG - DCA

1 stop6h 16mDelta

Sun 5/257:50 amDCA - GEG

1 stop7h 56mDelta

Deal found 4/28

$297

Wed 6/113:35 pmBOI - DCA

1 stop7h 16mAmerican Airlines

Wed 6/183:25 pmDCA - BOI

1 stop8h 29mAmerican Airlines

Deal found 4/28

$301

Fri 5/2311:37 amGEG - DCA

1 stop8h 05mUnited Airlines

Mon 5/266:25 amDCA - GEG

1 stop7h 31mUnited Airlines

Deal found 4/29

$318

Sun 6/812:36 pmBOI - DCA

1 stop7h 23mFrontier

Wed 6/116:00 pmDCA - BOI

1 stop19h 47mFrontier

Deal found 4/28

$321

Thu 7/106:00 amGEG - DCA

1 stop7h 43mHawaiian Airlines

Mon 7/145:02 pmDCA - GEG

1 stop9h 57mHawaiian Airlines

Deal found 4/29

$331

Wed 6/48:55 amBOI - DCA

1 stop10h 10mMultiple Airlines

Sun 6/87:00 amDCA - BOI

1 stop6h 47mMultiple Airlines

Deal found 4/27

$335

Tue 8/126:00 amBOI - DCA

2 stops10h 00mSouthwest

Mon 8/184:40 pmDCA - BOI

2 stops9h 45mSouthwest

Deal found 4/28

$346

Tue 8/128:54 amBOI - DCA

1 stop10h 05mAlaska Airlines

Mon 8/189:59 amDCA - BOI

1 stop14h 55mAlaska Airlines

Deal found 4/28

$300

Thu 6/1911:40 pmBOI - DCA

1 stop9h 20mDelta

Tue 6/243:40 pmDCA - BOI

2 stops10h 34mDelta

Deal found 4/29

$306

Fri 9/263:29 pmJAC - DCA

1 stop6h 21mAmerican Airlines

Sun 10/129:00 amDCA - JAC

1 stop8h 21mAmerican Airlines

Deal found 4/29

$343

Fri 10/249:50 amBOI - DCA

1 stop10h 05mHawaiian Airlines

Sat 11/15:30 pmDCA - BOI

1 stop8h 25mHawaiian Airlines

Deal found 4/29

$370

Last-minute flights from Idaho to Reagan-National
Discover last-minute flight deals from Idaho to Reagan-National. Data last updated April 30, 2025 and is based on user searches.

Sun 5/41:35 pmBOI - DCA

2 stops24h 27mUnited Airlines

Wed 5/77:00 amDCA - BOI

1 stop11h 21mUnited Airlines

Deal found 4/28

$622

Sun 5/44:10 pmGEG - DCA

2 stops16h 46mUnited Airlines

Tue 5/64:16 pmDCA - GEG

1 stop7h 34mUnited Airlines

Deal found 4/28

$685

Sun 5/47:05 amBOI - DCA

2 stops9h 54mAmerican Airlines

Wed 5/77:30 amDCA - BOI

1 stop7h 50mAmerican Airlines

Deal found 4/29

$742

Sun 5/47:50 pmBOI - DCA

2 stops11h 16mDelta

Wed 5/74:00 pmDCA - BOI

2 stops10h 22mDelta

Deal found 4/28

$881

Sun 5/47:25 pmGEG - DCA

2 stops10h 11mDelta

Tue 5/66:00 amDCA - GEG

2 stops11h 54mDelta

Deal found 4/28

$881

Sun 5/46:00 amIDA - DCA

1 stop8h 38mHawaiian Airlines

Tue 5/68:00 amDCA - IDA

1 stop9h 58mHawaiian Airlines

Deal found 4/27

$1,507

Tue 5/67:05 amJAC - DCA

2 stops9h 54mDelta

Fri 5/99:59 amDCA - JAC

2 stops12h 49mDelta

Deal found 4/28

$942

Tue 5/62:35 pmJAC - DCA

1 stop22h 27mUnited Airlines

Fri 5/94:16 pmDCA - JAC

1 stop19h 23mUnited Airlines

Deal found 4/28

$1,133

Sun 5/181:22 pmGEG - DCA

1 stop8h 24mAmerican Airlines

Sat 5/247:30 amDCA - GEG

1 stop9h 07mAmerican Airlines

Deal found 4/28

$399

Mon 5/192:47 pmBOI - DCA

1 stop6h 39mDelta

Tue 5/204:00 pmDCA - BOI

2 stops10h 22mDelta

Deal found 4/28

$390

Wed 5/2111:33 amGEG - DCA

1 stop7h 26mAlaska Airlines

Sun 5/259:59 amDCA - GEG

1 stop16h 48mAlaska Airlines

Deal found 4/28

$296

Wed 5/212:10 pmGEG - DCA

1 stop6h 16mDelta

Sun 5/257:50 amDCA - GEG

1 stop7h 56mDelta

Deal found 4/28

$297

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 April 30, 2025.

Tue 5/2012:26 pmGEG - DCA

1 stop6h 33mFrontier

Deal found 4/29

$99

Sun 6/812:36 pmBOI - DCA

1 stop7h 23mFrontier

Deal found 4/27

$127

Wed 6/47:00 amGEG - DCA

1 stop11h 05mAlaska Airlines

Deal found 4/29

$139

Fri 5/307:10 amGEG - DCA

1 stop10h 49mHawaiian Airlines

Deal found 4/28

$148

Sun 6/811:10 pmGEG - DCA

1 stop6h 59mDelta

Deal found 4/28

$149

Thu 6/121:15 pmBOI - DCA

1 stop8h 31mAmerican Airlines

Deal found 4/29

$151

Sun 6/297:15 pmBOI - DCA

2 stops12h 42mUnited Airlines

Deal found 4/28

$156

Wed 5/2111:40 amJAC - DCA

1 stop8h 19mAlaska Airlines

Deal found 4/28

$170

Wed 5/286:00 amIDA - DCA

1 stop8h 44mHawaiian Airlines

Deal found 4/28

$176

Sun 8/176:30 amBOI - DCA

1 stop7h 40mSouthwest

Deal found 4/28

$186

Wed 5/216:00 amIDA - DCA

2 stops9h 59mDelta

Deal found 4/28

$186

Wed 5/216:00 amIDA - DCA

1 stop8h 44mAlaska Airlines

Deal found 4/28

$197

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

Wed 5/21

11:33 am-9:59 pm

1 stop7h 26m

Washington, D.C. Reagan-National

Sun 5/25

9:59 am-11:47 pm

1 stop16h 48m

$296

SpokaneWashington, D.C.

GEG - DCA

GEGDCA

Spokane

Wed 5/21

6:00 am-4:00 pm

1 stop7h 00m

Washington, D.C. Reagan-National

Sun 5/25

7:50 am-12:46 pm

1 stop7h 56m

$297

BoiseWashington, D.C.

BOI - DCA

BOIDCA

Boise Air Term. Gowen Fld

Tue 8/12

8:54 am-8:59 pm

1 stop10h 05m

Washington, D.C. Reagan-National

Mon 8/18

9:59 am-10:54 pm

1 stop14h 55m

$300

BoiseWashington, D.C.

BOI - DCA

BOIDCA

Boise Air Term. Gowen Fld

Wed 6/11

3:35 pm-12:51 am

1 stop7h 16m

Washington, D.C. Reagan-National

Wed 6/18

3:25 pm-9:54 pm

1 stop8h 29m

$301

BoiseWashington, D.C.

BOI - DCA

BOIDCA

Boise Air Term. Gowen Fld

Thu 6/19

11:40 pm-11:00 am

1 stop9h 20m

Washington, D.C. Reagan-National

Tue 6/24

3:40 pm-12:14 am

2 stops10h 34m

$306

SpokaneWashington, D.C.

GEG - DCA

GEGDCA

Spokane

Fri 5/23

11:37 am-10:42 pm

1 stop8h 05m

Washington, D.C. Reagan-National

Mon 5/26

6:25 am-10:56 am

1 stop7h 31m

$318

BoiseWashington, D.C.

BOI - DCA

BOIDCA

Boise Air Term. Gowen Fld

Sun 6/8

12:36 pm-9:59 pm

1 stop7h 23m

Washington, D.C. Reagan-National

Wed 6/11

6:00 pm-11:47 am

1 stop19h 47m

$321

SpokaneWashington, D.C.

GEG - DCA

GEGDCA

Spokane

Thu 7/10

6:00 am-4:43 pm

1 stop7h 43m

Washington, D.C. Reagan-National

Mon 7/14

5:02 pm-11:59 pm

1 stop9h 57m

$331

BoiseWashington, D.C.

BOI - DCA

BOIDCA

Boise Air Term. Gowen Fld

Wed 6/4

8:55 am-9:05 pm

1 stop10h 10m

Washington, D.C. Reagan-National

Sun 6/8

7:00 am-11:47 am

1 stop6h 47m

$335

JacksonWashington, D.C.

JAC - DCA

JACDCA

Jackson Hole

Fri 9/26

3:29 pm-11:50 pm

1 stop6h 21m

Washington, D.C. Reagan-National

Sun 10/12

9:00 am-3:21 pm

1 stop8h 21m

$343

Flights are sorted by cheapest round-trip flights first.

Deals found on 4/29

Showing 1-10 of 50 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 June is currently the most expensive (average of $344). 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.

Rainfall in Reagan-National 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

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

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

9,961 reviews

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

9,961 reviews

Alaska Airlines

8.0

Very good

9,961 reviews

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

4,295 reviews

Alaska Airlines

8.0

Very good

9,961 reviews

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

7,936 reviews

Alaska Airlines

8.0

Very good

9,961 reviews

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

2,406 reviews

Alaska Airlines

8.0

Very good

9,961 reviews

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

8,696 reviews

Alaska Airlines

8.0

Very good

9,961 reviews

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

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 Frontier ($99), Alaska Airlines ($139), and Hawaiian Airlines ($148).
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 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 June is currently the most expensive (average of $344). 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

Alexandria

Arlington

Woodbridge

Tysons

Fairfax

Springfield

Rockville

Fredericksburg

Silver Spring

Gaithersburg

Linthicum Heights

Falls Church

Laurel

Easton

Towson

Herndon

Bowie

National Harbor

Oxon Hill

Reston

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$300	Average$481	FlexibilityNo cancel fee	On-timeN/A
American Airlines	Cheapest$316	Average$626	FlexibilityNo cancel fee	On-time71%
United Airlines	Cheapest$380	Average$763	FlexibilityNo cancel fee	On-time69%
Alaska Airlines	Cheapest$392	Average$601	FlexibilityNo cancel fee	On-time75%
Southwest	Cheapest$403	Average$543	FlexibilityNo cancel fee	On-time63%

100% Free

Cheapflights is completely free to use, so you can start saving the moment you arrive.

Book with Flexibility

Our users can plan ahead with confidence and find flights with no change fees

Travel Smart

Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.

$99+ 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 5/20. 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

1. Tell us where you want to go

2. Select your favorite providers

3. Compare prices and book

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 April 30, 2025.

Most accurate provider

Most trusted provider

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 April 30, 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 April 30, 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 April 30, 2025.

Rainfall in Reagan-National by month

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

Temperature in Reagan-National by month

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

Reviews of airlines servicing Reagan-National

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.

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?

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 Idaho?

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Alternative routes for Idaho to Reagan-National

See prices for flight routes from nearby airports that may be better suited for you.

Top 5 airlines flying from Idaho to Reagan-National

100% Free

Book with Flexibility

Travel Smart

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 April 30, 2025.