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Reagan-National

$250+ 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 11/18. Fares are subject to change and may not be available on all flights or dates of travel.
IDA — DCA
Dec 6 — Dec 131
Sat 12/6
Sat 12/13
1 adult, Economy
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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 November 6, 2025.

This Alaska Airlines deal was found by Cheapflights users on 11/5. 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 12/35:07 pmIDA - DCA
1 stop26h 52mAlaska Airlines
Wed 12/108:00 amDCA - IDA
1 stop17h 59mAlaska Airlines
Deal found 11/5$344
This American Airlines deal was found by Cheapflights users on 11/5. 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 12/37:00 amIDA - DCA
2 stops11h 58mAmerican Airlines
Wed 12/107:43 amDCA - IDA
1 stop7h 44mAmerican Airlines
Deal found 11/5$429
This United Airlines deal was found by Cheapflights users on 11/5. 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 11/205:00 amIDA - DCA
1 stop7h 55mUnited Airlines
Mon 11/244:17 pmDCA - IDA
1 stop8h 35mUnited Airlines
Deal found 11/5$501
This Alaska Airlines deal was found by Cheapflights users on 11/4. 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 12/135:07 pmIDA - DCA
1 stop21h 01mAlaska Airlines
Mon 1/55:00 pmDCA - IDA
1 stop9h 07mAlaska Airlines
Deal found 11/4$550
This American Airlines deal was found by Cheapflights users on 11/4. 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 12/137:00 amIDA - DCA
2 stops13h 15mAmerican Airlines
Mon 1/56:30 amDCA - IDA
1 stop8h 16mAmerican Airlines
Deal found 11/4$578
This American Airlines deal was found by Cheapflights users on 11/4. 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 11/121:58 pmIDA - DCA
1 stop7h 02mAmerican Airlines
Sat 11/157:43 amDCA - IDA
1 stop7h 45mAmerican Airlines
Deal found 11/4$661

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 November 6, 2025.

Most accurate provider

eDreams
3 stars

Most trusted provider

eDreams
3 stars

Round-trip from

$344
(Alaska Airlines)

One-way from

$250
(Alaska Airlines)

Popular in

January

Cheapest in

April

Average price

$549
Provider with most accurate pricing for Idaho Falls Fanning Field-Washington, D.C. Reagan-National flight deals.
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Provider most trusted by Cheapflights users for Idaho Falls Fanning Field-Washington, D.C. Reagan-National flights.
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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. 23% potential increase in price ($240 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 7% potential price decrease ($58 potential savings vs. average RT price).
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Average for round-trip flights in November 2025
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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 November 6, 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

Wed 12/3

5:07 pm-9:59 pm

1 stop26h 52m

Washington, D.C. Reagan-National

Wed 12/10

8:00 am-11:59 pm

1 stop17h 59m

$344

Idaho FallsWashington, D.C.

IDA - DCA

IDADCA

Idaho Falls Fanning Field

Thu 1/8

6:58 pm-8:00 pm

2 stops23h 02m

Washington, D.C. Reagan-National

Mon 1/12

9:59 am-6:18 pm

2 stops34h 19m

$395

Idaho FallsWashington, D.C.

IDA - DCA

IDADCA

Idaho Falls Fanning Field

Wed 12/3

7:00 am-8:58 pm

2 stops11h 58m

Washington, D.C. Reagan-National

Wed 12/10

7:43 am-1:27 pm

1 stop7h 44m

$429

Idaho FallsWashington, D.C.

IDA - DCA

IDADCA

Idaho Falls Fanning Field

Tue 3/10

8:00 am-9:55 pm

1 stop11h 55m

Washington, D.C. Reagan-National

Wed 3/11

8:00 am-10:38 pm

1 stop16h 38m

$434

Idaho FallsWashington, D.C.

IDA - DCA

IDADCA

Idaho Falls Fanning Field

Thu 11/20

5:00 am-2:55 pm

1 stop7h 55m

Washington, D.C. Reagan-National

Mon 11/24

4:17 pm-10:52 pm

1 stop8h 35m

$501

Idaho FallsWashington, D.C.

IDA - DCA

IDADCA

Idaho Falls Fanning Field

Fri 2/13

8:00 am-9:55 pm

1 stop11h 55m

Washington, D.C. Reagan-National

Sun 2/15

9:30 am-10:38 pm

2 stops15h 08m

$507

Idaho FallsWashington, D.C.

IDA - DCA

IDADCA

Idaho Falls Fanning Field

Tue 3/10

1:43 pm-11:00 pm

1 stop7h 17m

Washington, D.C. Reagan-National

Wed 3/11

9:21 am-9:57 pm

2 stops14h 36m

$519

Idaho FallsWashington, D.C.

IDA - DCA

IDADCA

Idaho Falls Fanning Field

Tue 11/18

6:05 am-4:53 pm

1 stop8h 48m

$250

Idaho FallsWashington, D.C.

IDA - DCA

IDADCA

Idaho Falls Fanning Field

Tue 11/18

6:00 am-6:59 pm

2 stops10h 59m

$256

Idaho FallsWashington, D.C.

IDA - DCA

IDADCA

Idaho Falls Fanning Field

Sat 1/3

9:30 pm-1:01 pm

2 stops37h 31m

$263

Flights are sorted by cheapest round-trip flights first.

Deals found on 11/4

Showing 1-10 of 11 results
1
2

Compare providers for flights from Idaho Falls to Reagan-National

Provider information is updated monthly. Please note that these providers often have deals for this flight, but the availability may vary on a day-by-day basis on Cheapflights.
Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from Idaho Falls to Reagan-National in November.
ProviderPrice AccuracyTrust Score*
eDreamsPrice Accuracy3 starsTrust Score*3 stars
ExpediaPrice Accuracy2 starsTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*1 star

*The Trust Score is based on feedback from users after their booking experience. It measures overall satisfaction, helping us identify issues like hidden fees, problems during the ticketing process, and the quality of customer service. This score is our best indicator of the provider's quality and reliability.

  • Most accurate provider: When it comes to deals on Idaho Falls-Washington, D.C. Reagan-National Airport flights, users find the pricing of eDreams to be most consistent on Cheapflights vs. eDreams Users can find the same prices on Idaho Falls-Washington, D.C. Reagan-National Airport flight deals on Cheapflights vs. eDreams >95% of the time. Price accuracy is based on data collected from Idaho Falls-Washington, D.C. Reagan-National Airport flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on Idaho Falls-Washington, D.C. Reagan-National Airport flights, Cheapflights users trust eDreams the most. eDreams has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for Idaho Falls-Washington, D.C. Reagan-National Airport flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.

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.

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 November 6, 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
9,007 reviews

Overall

7.4

Entertainment

7.1

Boarding

7.7

Crew

8.1

Food

6.6

Comfort

7.3

Reviews

1 / 20
2.0
Mediocre

Sebrena,Oct 2025

IAH - RSW

The worst that I have ever experienced in my life so bad if it was free I'm not ever going to use your Airline again I dont believe ..... very disappointed 😞 😔0000000000000
United Airlines
7.4
Good
9,007 reviews
United Airlines
7.4
Good
9,007 reviews

Overall

7.4

Entertainment

7.1

Boarding

7.7

Crew

8.1

Food

6.6

Comfort

7.3

Reviews

1 / 20
2.0
Mediocre

Sebrena,Oct 2025

IAH - RSW

The worst that I have ever experienced in my life so bad if it was free I'm not ever going to use your Airline again I dont believe ..... very disappointed 😞 😔0000000000000
American Airlines
7.2
Good
11,040 reviews
United Airlines
7.4
Good
9,007 reviews

Overall

7.4

Entertainment

7.1

Boarding

7.7

Crew

8.1

Food

6.6

Comfort

7.3

Reviews

1 / 20
2.0
Mediocre

Sebrena,Oct 2025

IAH - RSW

The worst that I have ever experienced in my life so bad if it was free I'm not ever going to use your Airline again I dont believe ..... very disappointed 😞 😔0000000000000

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 11h 58m. The time it takes to get you to your destination can typically vary by up to 14h 54m. 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, United Airlines ($394), and American Airlines ($437) offers the cheapest pricing from Idaho Falls to Washington, D.C. Reagan-National Airport. Users have found that United Airlines is 49% 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.

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
Alexandria
Tysons
Woodbridge
Arlington
Owings Mills
Springfield
Hanover
Silver Spring
Fairfax
Fredericksburg
Falls Church
Linthicum Heights
Manassas
Laurel
Towson
National Harbor
Waldorf
Bowie
Largo
McLean

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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 November 6, 2025.
AirlineCheapestAverageFlexibilityOn-time
United AirlinesCheapest$394Average$698FlexibilityNo cancel feeOn-time69%
American AirlinesCheapest$437Average$607FlexibilityNo cancel feeOn-time71%

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