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Reagan-National

$208+ 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 10/20. Fares are subject to change and may not be available on all flights or dates of travel.
IDA — DCA
Oct 17 — Oct 241
Fri 10/17
Fri 10/24
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 September 17, 2025.

Round-trip from

$412
(Alaska Airlines)

One-way from

$208
(American Airlines)

Popular in

June

Cheapest in

December

Average price

$493
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. 22% potential increase in price ($181 potential increase over avg. RT price).
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Cheapest flight prices on average. 5% potential price decrease ($30 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 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 September 17, 2025.

This Alaska Airlines deal was found by Cheapflights users on 9/16. 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.
Sat 11/86:05 amIDA - DCA
1 stop8h 48mAlaska Airlines
Wed 11/198:00 amDCA - IDA
1 stop9h 13mAlaska Airlines
Deal found 9/16$412
This American Airlines deal was found by Cheapflights users on 9/15. 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 10/271:11 pmIDA - DCA
1 stop7h 04mAmerican Airlines
Sat 11/16:59 amDCA - IDA
1 stop7h 25mAmerican Airlines
Deal found 9/15$414
This American Airlines deal was found by Cheapflights users on 9/14. 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 10/271:11 pmIDA - DCA
1 stop8h 01mAmerican Airlines
Fri 10/316:59 amDCA - IDA
1 stop7h 26mAmerican Airlines
Deal found 9/14$415
This American Airlines deal was found by Cheapflights users on 9/17. 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 10/271:11 pmIDA - DCA
1 stop8h 01mAmerican Airlines
Thu 10/301:30 pmDCA - IDA
1 stop10h 19mAmerican Airlines
Deal found 9/17$448
This Hawaiian Airlines deal was found by Cheapflights users on 9/15. 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.
Sun 11/25:05 amIDA - DCA
1 stop8h 48mHawaiian Airlines
Sat 11/158:00 amDCA - IDA
1 stop9h 13mHawaiian Airlines
Deal found 9/15$474
This Alaska Airlines deal was found by Cheapflights users on 9/14. 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.
Sat 10/256:00 amIDA - DCA
1 stop8h 48mAlaska Airlines
Fri 10/315:00 pmDCA - IDA
1 stop8h 59mAlaska Airlines
Deal found 9/14$475
This American Airlines deal was found by Cheapflights users on 9/16. 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 10/11:35 pmIDA - DCA
1 stop9h 25mAmerican Airlines
Sun 10/56:30 amDCA - IDA
1 stop7h 39mAmerican Airlines
Deal found 9/16$481
This American Airlines deal was found by Cheapflights users on 9/14. 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 10/256:44 amIDA - DCA
2 stops11h 15mAmerican Airlines
Fri 10/3111:59 amDCA - IDA
2 stops11h 34mAmerican Airlines
Deal found 9/14$497
This Alaska Airlines deal was found by Cheapflights users on 9/15. 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 12/35:04 pmIDA - DCA
1 stop26h 55mAlaska Airlines
Mon 12/85:00 pmDCA - IDA
1 stop25h 27mAlaska Airlines
Deal found 9/15$503

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 September 17, 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

Sat 11/8

6:05 am-4:53 pm

1 stop8h 48m

Washington, D.C. Reagan-National

Wed 11/19

8:00 am-3:13 pm

1 stop9h 13m

$412

Idaho FallsWashington, D.C.

IDA - DCA

IDADCA

Idaho Falls Fanning Field

Mon 10/27

1:11 pm-10:15 pm

1 stop7h 04m

Washington, D.C. Reagan-National

Sat 11/1

3:30 pm-9:48 pm

1 stop8h 18m

$414

Idaho FallsWashington, D.C.

IDA - DCA

IDADCA

Idaho Falls Fanning Field

Sat 10/25

12:55 pm-10:15 pm

1 stop7h 20m

Washington, D.C. Reagan-National

Fri 10/31

6:59 am-12:25 pm

1 stop7h 26m

$414

Idaho FallsWashington, D.C.

IDA - DCA

IDADCA

Idaho Falls Fanning Field

Mon 10/27

1:11 pm-11:12 pm

1 stop8h 01m

Washington, D.C. Reagan-National

Thu 10/30

1:30 pm-9:49 pm

1 stop10h 19m

$448

Idaho FallsWashington, D.C.

IDA - DCA

IDADCA

Idaho Falls Fanning Field

Sat 12/13

6:05 am-4:08 pm

1 stop8h 03m

Washington, D.C. Reagan-National

Thu 12/25

5:00 pm-12:07 am

1 stop9h 07m

$474

Idaho FallsWashington, D.C.

IDA - DCA

IDADCA

Idaho Falls Fanning Field

Sat 10/25

6:00 am-4:48 pm

1 stop8h 48m

Washington, D.C. Reagan-National

Fri 10/31

5:00 pm-11:59 pm

1 stop8h 59m

$475

Idaho FallsWashington, D.C.

IDA - DCA

IDADCA

Idaho Falls Fanning Field

Wed 10/1

1:35 pm-1:00 am

1 stop9h 25m

Washington, D.C. Reagan-National

Sun 10/5

6:30 am-12:09 pm

1 stop7h 39m

$481

Idaho FallsWashington, D.C.

IDA - DCA

IDADCA

Idaho Falls Fanning Field

Wed 12/3

5:04 pm-9:59 pm

1 stop26h 55m

Washington, D.C. Reagan-National

Mon 12/8

5:00 pm-4:27 pm

1 stop25h 27m

$503

Idaho FallsWashington, D.C.

IDA - DCA

IDADCA

Idaho Falls Fanning Field

Mon 10/20

1:11 pm-11:12 pm

1 stop8h 01m

$208

Idaho FallsWashington, D.C.

IDA - DCA

IDADCA

Idaho Falls Fanning Field

Mon 10/20

7:40 pm-12:04 pm

2 stops38h 24m

$208

Flights are sorted by cheapest round-trip flights first.

Deals found on 9/17

Showing 1-10 of 18 results
1
2

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

How much does it cost to fly round-trip from Idaho Falls to Washington, D.C. Reagan-National Airport?

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 September 17, 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
8,926 reviews

Entertainment

7.1

Food

6.6

Overall

7.4

Comfort

7.3

Crew

8.1

Boarding

7.7

Reviews

1 / 20
10.0
Excellent

Julia,Sep 2025

BUF - DEN

The staff were amazing, from check in to boarding and on the flight. The range of entertainment options were really good as well.
United Airlines
7.4
Good
8,926 reviews
United Airlines
7.4
Good
8,926 reviews

Entertainment

7.1

Food

6.6

Overall

7.4

Comfort

7.3

Crew

8.1

Boarding

7.7

Reviews

1 / 20
10.0
Excellent

Julia,Sep 2025

BUF - DEN

The staff were amazing, from check in to boarding and on the flight. The range of entertainment options were really good as well.
American Airlines
7.2
Good
10,000 reviews
United Airlines
7.4
Good
8,926 reviews

Entertainment

7.1

Food

6.6

Overall

7.4

Comfort

7.3

Crew

8.1

Boarding

7.7

Reviews

1 / 20
10.0
Excellent

Julia,Sep 2025

BUF - DEN

The staff were amazing, from check in to boarding and on the flight. The range of entertainment options were really good as well.

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 Alaska Airlines and American Airlines 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 44m. 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 41% 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
Gaithersburg
Fredericksburg
Linthicum Heights
Fairfax
Falls Church
Owings Mills
Manassas
Rockville
Hanover
Oxon Hill
Laurel
Towson
National Harbor
Dundalk

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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 September 17, 2025.
AirlineCheapestAverageFlexibilityOn-time
American AirlinesCheapest$369Average$560FlexibilityNo cancel feeOn-time71%
United AirlinesCheapest$394Average$698FlexibilityNo cancel feeOn-time69%

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