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Reagan-National

$328+ Cheap flights from Idaho Falls (IDA) 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 10/23. Fares are subject to change and may not be available on all flights or dates of travel.
IDA — DCA
Aug 25 — Sep 11
Mon 8/25
Mon 9/1
1 adult, Economy
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Cheap flight deals from Idaho Falls to Reagan-National

Discover tips and strategies to find the most affordable flight options for your journey from Idaho Falls (IDA) to Reagan-National (DCA). 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 August 20, 2025.

Round-trip from

$395
(American Airlines)

One-way from

$328
(Alaska Airlines)

Popular in

August

Cheapest in

December

Average price

$1,429
From Idaho Falls Fanning Field to Washington, D.C. Reagan-National
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One-way flight from Idaho Falls Fanning Field to Washington, D.C. Reagan-National
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Highest demand for flights based on searches. 20% potential increase in price ($178 potential increase over avg. RT price).
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Cheapest flight prices on average. 10% potential price decrease ($67 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 Idaho Falls to Reagan-National

Cheapest flights from Idaho Falls to Reagan-National
Explore the most affordable flight options available from Idaho Falls to Reagan-National. Find the lowest fares from popular airlines and budget airlines, with prices last updated on August 20, 2025.

This American Airlines deal was found by Cheapflights users on 8/18. 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.
Fri 10/241:11 pmIDA - DCA
1 stop7h 04mAmerican Airlines
Tue 10/286:59 amDCA - IDA
1 stop7h 25mAmerican Airlines
Deal found 8/18$395
This American Airlines deal was found by Cheapflights users on 8/18. 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.
Fri 9/2612:54 pmIDA - DCA
1 stop7h 06mAmerican Airlines
Fri 10/36:30 amDCA - IDA
1 stop7h 54mAmerican Airlines
Deal found 8/18$427
This Delta deal was found by Cheapflights users on 8/18. 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 9/206:00 amIDA - DCA
1 stop8h 11mDelta
Sat 9/272:40 pmDCA - IDA
2 stops9h 45mDelta
Deal found 8/18$432
This Alaska Airlines deal was found by Cheapflights users on 8/19. 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 11/123:50 pmIDA - DCA
2 stops26h 10mAlaska Airlines
Sun 11/165:00 pmDCA - IDA
1 stop8h 59mAlaska Airlines
Deal found 8/19$444
This American Airlines deal was found by Cheapflights users on 8/18. 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.
Sat 9/206:44 amIDA - DCA
2 stops10h 56mAmerican Airlines
Sat 9/271:30 pmDCA - IDA
2 stops9h 55mAmerican Airlines
Deal found 8/18$485
This Delta deal was found by Cheapflights users on 8/19. 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.
Fri 9/266:51 pmIDA - DCA
2 stops12h 18mDelta
Fri 10/35:21 pmDCA - IDA
1 stop7h 04mDelta
Deal found 8/19$524
This Delta deal was found by Cheapflights users on 8/18. 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.
Fri 10/246:53 pmIDA - DCA
2 stops12h 17mDelta
Tue 10/2810:20 amDCA - IDA
2 stops13h 55mDelta
Deal found 8/18$529
This Alaska Airlines deal was found by Cheapflights users on 8/18. 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 10/234:15 pmIDA - DCA
1 stop27h 44mAlaska Airlines
Mon 10/275:00 pmDCA - IDA
1 stop24h 13mAlaska Airlines
Deal found 8/18$593
This American Airlines deal was found by Cheapflights users on 8/19. 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.
Fri 10/312:54 pmIDA - DCA
1 stop8h 32mAmerican Airlines
Sun 10/56:30 amDCA - IDA
1 stop7h 39mAmerican Airlines
Deal found 8/19$631
This United Airlines deal was found by Cheapflights users on 8/19. 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.
Fri 10/35:56 pmIDA - DCA
2 stops14h 02mUnited Airlines
Sun 10/55:27 pmDCA - IDA
2 stops18h 21mUnited Airlines
Deal found 8/19$674

Cheapflights Fare Finder

 
Customize your flight search to find flights from Idaho Falls 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 August 20, 2025.
Use the filters below to find and compare flights from Idaho Falls to Washington, D.C. Reagan-National Airport that are best for you.

Fly from

Idaho Falls

Fly to

Reagan-National

Route

Depart

Return

Price

Idaho FallsWashington, D.C.

IDA - DCA

IDADCA

Idaho Falls Fanning Field

Fri 10/24

1:11 pm-10:15 pm

1 stop7h 04m

Washington, D.C. Reagan-National

Tue 10/28

6:59 am-12:24 pm

1 stop7h 25m

$395

Idaho FallsWashington, D.C.

IDA - DCA

IDADCA

Idaho Falls Fanning Field

Sat 9/20

6:00 am-4:11 pm

1 stop8h 11m

Washington, D.C. Reagan-National

Sat 9/27

5:21 pm-10:25 pm

1 stop7h 04m

$427

Idaho FallsWashington, D.C.

IDA - DCA

IDADCA

Idaho Falls Fanning Field

Fri 9/26

12:54 pm-10:00 pm

1 stop7h 06m

Washington, D.C. Reagan-National

Fri 10/3

6:30 am-12:24 pm

1 stop7h 54m

$427

Idaho FallsWashington, D.C.

IDA - DCA

IDADCA

Idaho Falls Fanning Field

Wed 11/12

3:50 pm-8:00 pm

2 stops26h 10m

Washington, D.C. Reagan-National

Sun 11/16

5:00 pm-11:59 pm

1 stop8h 59m

$444

Idaho FallsWashington, D.C.

IDA - DCA

IDADCA

Idaho Falls Fanning Field

Sat 9/20

6:44 am-7:40 pm

2 stops10h 56m

Washington, D.C. Reagan-National

Sat 9/27

1:30 pm-9:25 pm

2 stops9h 55m

$485

Idaho FallsWashington, D.C.

IDA - DCA

IDADCA

Idaho Falls Fanning Field

Fri 9/26

6:51 pm-9:09 am

2 stops12h 18m

Washington, D.C. Reagan-National

Fri 10/3

5:21 pm-10:25 pm

1 stop7h 04m

$524

Idaho FallsWashington, D.C.

IDA - DCA

IDADCA

Idaho Falls Fanning Field

Fri 10/24

6:53 pm-9:10 am

2 stops12h 17m

Washington, D.C. Reagan-National

Tue 10/28

10:20 am-10:15 pm

2 stops13h 55m

$529

Idaho FallsWashington, D.C.

IDA - DCA

IDADCA

Idaho Falls Fanning Field

Thu 10/23

4:15 pm-9:59 pm

1 stop27h 44m

$328

Flights are sorted by cheapest round-trip flights first.

Deals found on 8/18

Best time to book a flight from Idaho Falls to Reagan-National

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

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

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

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 August 20, 2025.
Get a feel of what it's like to fly with United Airlines and American Airlines from Idaho Falls to Washington, D.C. Reagan-National Airport by reading reviews from past customers. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
United Airlines
7.4
Good
8,928 reviews

Comfort

7.3

Boarding

7.7

Entertainment

7.1

Crew

8.1

Food

6.6

Overall

7.4

Reviews

1 / 20
2.0
Mediocre

Deb,Jan 2025

MKE - ORD

It was terrible! So much to say, but in a nutshell we used vouchers from United because our last trip with them was awful with many mishaps and errors made. Unfortunately, this trip was even worse!
United Airlines
7.4
Good
8,928 reviews
United Airlines
7.4
Good
8,928 reviews

Comfort

7.3

Boarding

7.7

Entertainment

7.1

Crew

8.1

Food

6.6

Overall

7.4

Reviews

1 / 20
2.0
Mediocre

Deb,Jan 2025

MKE - ORD

It was terrible! So much to say, but in a nutshell we used vouchers from United because our last trip with them was awful with many mishaps and errors made. Unfortunately, this trip was even worse!
American Airlines
7.2
Good
10,000 reviews
United Airlines
7.4
Good
8,928 reviews

Comfort

7.3

Boarding

7.7

Entertainment

7.1

Crew

8.1

Food

6.6

Overall

7.4

Reviews

1 / 20
2.0
Mediocre

Deb,Jan 2025

MKE - ORD

It was terrible! So much to say, but in a nutshell we used vouchers from United because our last trip with them was awful with many mishaps and errors made. Unfortunately, this trip was even worse!

Related info for your journey

Find useful and relevant information for your journey from Idaho Falls 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 airport do you fly from for flights from Idaho Falls to Washington, D.C. Reagan-National?

    Idaho Falls Fanning Field (IDA) is the airport you will fly out of if you book a flight from Idaho Falls to Washington, D.C. Reagan-National. You should not have trouble finding flights to Washington, D.C. Reagan-National from Fanning Field; the airport handles an average of 0 outbound flights to Washington, D.C. Reagan-National per day. You should also have plenty of airline options to choose from since 2 airlines have flights from the Idaho Falls airport to Washington, D.C. Reagan-National. It is only a 3.8 mi journey to Fanning Field (IDA) from Idaho Falls’s city center.

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

    Airlines like American Airlines and Delta fly from Idaho Falls to Washington, D.C. Reagan-National Airport in about 7h 04m. The time it takes to get you to your destination can typically vary by up to 1h 07m. The distance from Idaho Falls to Washington, D.C. Reagan-National Airport is about 1835 mi. Both multi-stop and nonstop flights can be found to your destination and back.

  • What are the cheapest airlines flying from Idaho Falls to Washington, D.C. Reagan-National Airport round-trip?

    According to our current data, American Airlines ($369), and United Airlines ($394) offers the cheapest pricing from Idaho Falls to Washington, D.C. Reagan-National Airport. Users have found that American Airlines is 47% cheaper than the other options available to this destination.

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

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

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

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

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

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

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

Book flights to Washington, D.C. Reagan-National Airport if you plan to visit one of these locations
Woodbridge
Arlington
Alexandria
Tysons
Silver Spring
Springfield
Fredericksburg
Gaithersburg
Towson
Linthicum Heights
Fairfax
Manassas
Falls Church
Laurel
Rockville
Oxon Hill
National Harbor
Dundalk
Waldorf
Bowie

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Top 2 airlines flying from Idaho Falls to Reagan-National

Discover the top 2 airlines that operate flights from Idaho Falls 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 August 20, 2025.
AirlineCheapestAverageFlexibilityOn-time
American AirlinesCheapest$369Average$607FlexibilityNo cancel feeOn-time71%
United AirlinesCheapest$394Average$698FlexibilityNo cancel feeOn-time69%

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