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

Departing from Washington, D.C. Reagan-National Airport to Idaho Falls will take you 9h 20m. The distance from Washington, D.C. Reagan-National Airport to Idaho Falls is about 1835 mi. When browsing for deals, the options you’ll see will be for both nonstop flights and flights with stops.

In terms of precipitation, rainfall in Idaho Falls ranges from 0.6 - 2.0 inches per month. May is typically the wettest month, when rainfall can reach 2.0 in. July is typically the driest time to visit Idaho Falls when rainfall is around 0.6 in.

If weather is an important factor for your trip to Idaho Falls, 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 69.8 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 23.0 F).

What is the cheapest time of day to fly from DCA to IDA?

Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from Washington, D.C. Reagan-National Airport to Idaho Falls as you normally would.

Most accurate provider : When it comes to deals on Washington, D.C. Reagan-National Airport-Idaho Falls flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Washington, D.C. Reagan-National Airport-Idaho Falls flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Washington, D.C. Reagan-National Airport-Idaho Falls flight searches over the past month and is updated monthly.

Most trusted provider : When it comes to deals on Washington, D.C. Reagan-National Airport-Idaho Falls flights, Cheapflights users trust FlightHub the most. FlightHub 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 Washington, D.C. Reagan-National Airport-Idaho Falls flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.

What airport do you fly into for flights to Idaho Falls from Washington, D.C. Reagan-National?

For a flight from Washington, D.C. Reagan-National to Idaho Falls, you will be flying into Fanning Field. Idaho Falls Fanning Field (IDA) is just 3.8 mi from the center of the city. Fanning Field is the only Idaho Falls airport and it handles 0 inbound flights from Washington, D.C. Reagan-National per day. 0 airlines have flights to Idaho Falls Fanning Field from Washington, D.C. Reagan-National on a regular basis.

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

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

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

After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Reagan-National to Idaho Falls.

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

Yes. Cheapflights offers flight deals from Reagan-National to Idaho Falls by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

$200+ Cheap Flights from Washington, D.C. Reagan-National Airport to Idaho Falls

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Cheap flight deals from Reagan-National to Idaho Falls

Cheapest

Best

Last-minute

One-way

Cheapest flights from Reagan-National to Idaho Falls
Explore the most affordable flight options available from Reagan-National to Idaho Falls. Find the lowest fares from popular airlines and budget airlines, with prices last updated on September 11, 2026.

Fri 10/236:00 am -

1 stop9h 20m

Tue 10/271:50 pm -

1 stop8h 09m

Deal found 9/8

$379

Fri 12/112:59 pm -

2 stops9h 08m

Tue 1/56:45 pm -

2 stops12h 27m

Deal found 9/9

$389

Tue 10/1310:10 am -

2 stops14h 00m

Fri 10/166:56 pm -

2 stops12h 14m

Deal found 9/10

$470

Mon 9/285:00 am -

1 stop8h 45m

Thu 10/12:08 pm -

1 stop7h 51m

Deal found 9/7

$479

Thu 12/244:01 pm -

1 stop7h 18m

Wed 1/67:00 am -

1 stop5h 56m

Deal found 9/9

$482

Fri 12/253:31 pm -

1 stop8h 15m

Thu 1/71:45 pm -

1 stop8h 14m

Deal found 9/9

$489

Fri 12/253:31 pm -

1 stop8h 15m

Sat 1/91:45 pm -

1 stop8h 14m

Deal found 9/9

$499

Thu 12/245:00 pm -

1 stop8h 45m

Tue 1/53:58 pm -

1 stop22h 02m

Deal found 9/7

$509

Best flights from Reagan-National to Idaho Falls
Discover carefully curated flight deals from Reagan-National to Idaho Falls that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated September 11, 2026.

Fri 10/236:00 am -

1 stop9h 20m

Tue 10/276:37 am -

2 stops10h 11m

Deal found 9/8

$466

Tue 10/1310:10 am -

2 stops14h 00m

Fri 10/166:56 pm -

2 stops12h 14m

Deal found 9/10

$470

Thu 12/244:01 pm -

1 stop7h 18m

Wed 1/67:00 am -

1 stop5h 56m

Deal found 9/7

$496

Fri 12/116:59 pm -

2 stops29h 40m

Tue 1/53:58 pm -

1 stop22h 02m

Deal found 9/8

$516

Fri 12/112:59 pm -

2 stops9h 08m

Tue 1/56:00 am -

1 stop8h 17m

Deal found 9/7

$494

Tue 10/205:00 pm -

1 stop24h 20m

Fri 10/231:58 pm -

1 stop30h 01m

Deal found 9/6

$613

Tue 10/2011:57 am -

2 stops10h 57m

Fri 10/234:05 pm -

3 stops27h 09m

Deal found 9/9

$650

Mon 12/2111:55 am -

2 stops13h 08m

Tue 1/56:00 am -

2 stops11h 19m

Deal found 9/9

$662

Last-minute flights from Reagan-National to Idaho Falls
Discover last-minute flight deals from Reagan-National to Idaho Falls. Data last updated September 11, 2026 and is based on user searches.

Thu 9/101:52 pm -

1 stop9h 28m

Sat 9/121:58 pm -

1 stop8h 01m

Deal found 9/6

$563

Sat 9/121:52 pm -

1 stop9h 28m

Sat 9/262:08 pm -

1 stop7h 51m

Deal found 9/9

$576

Mon 9/145:59 pm -

1 stop6h 23m

Sat 9/196:00 am -

1 stop8h 42m

Deal found 9/7

$564

Mon 9/147:32 am -

1 stop8h 05m

Wed 9/1612:15 pm -

1 stop9h 44m

Deal found 9/10

$572

Mon 9/285:00 am -

1 stop8h 45m

Thu 10/12:08 pm -

1 stop7h 51m

Deal found 9/7

$479

Tue 10/1310:10 am -

2 stops14h 00m

Fri 10/166:56 pm -

2 stops12h 14m

Deal found 9/10

$470

Tue 10/137:45 am -

1 stop7h 35m

Fri 10/161:50 pm -

1 stop8h 09m

Deal found 9/10

$562

Fri 10/166:00 am -

1 stop9h 20m

Mon 10/191:50 pm -

1 stop8h 09m

Deal found 9/9

$541

Fri 10/236:00 am -

1 stop9h 20m

Tue 10/271:50 pm -

1 stop8h 09m

Deal found 9/8

$379

One-way flights from Reagan-National to Idaho Falls
Search for one-way flight options from Reagan-National to Idaho Falls. Find affordable one-way fares based on user searches. Data last updated September 11, 2026.

Tue 9/295:00 am -

1 stop8h 45m

Wed 12/3112:00 am -

Nonstop0h 00m

Deal found 9/8

$200

Sat 10/36:00 am -

2 stops11h 24m

Wed 12/3112:00 am -

Nonstop0h 00m

Deal found 9/8

$205

Wed 9/301:00 pm -

3 stops53h 00m

Wed 12/3112:00 am -

Nonstop0h 00m

Deal found 9/8

$223

Tue 9/296:00 am -

2 stops11h 21m

Wed 12/3112:00 am -

Nonstop0h 00m

Deal found 9/8

$230

Thu 10/16:30 am -

1 stop8h 58m

Wed 12/3112:00 am -

Nonstop0h 00m

Deal found 9/8

$240

Wed 9/306:00 am -

2 stops11h 21m

Wed 12/3112:00 am -

Nonstop0h 00m

Deal found 9/8

$254

Thu 10/11:06 pm -

2 stops28h 54m

Wed 12/3112:00 am -

Nonstop0h 00m

Deal found 9/8

$269

Tue 10/68:00 am -

1 stop9h 20m

Wed 12/3112:00 am -

Nonstop0h 00m

Deal found 9/8

$270

Tue 10/63:00 pm -

2 stops9h 10m

Wed 12/3112:00 am -

Nonstop0h 00m

Deal found 9/8

$275

Sun 10/46:00 am -

2 stops11h 24m

Wed 12/3112:00 am -

Nonstop0h 00m

Deal found 9/8

$280

Fri 10/26:00 am -

2 stops11h 24m

Wed 12/3112:00 am -

Nonstop0h 00m

Deal found 9/8

$335

Fri 10/26:30 am -

1 stop8h 58m

Wed 12/3112:00 am -

Nonstop0h 00m

Deal found 9/8

$340

Find flight deals from Reagan-National to Idaho Falls

Most accurate provider	FlightHub 3 stars
Most trusted provider	FlightHub 3 stars
Round-trip from	$379 (American Airlines)
One-way from	$200 (American Airlines)

Provider with most accurate pricing for Washington, D.C. Reagan-National-Idaho Falls Fanning Field flight deals.

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Provider most trusted by Cheapflights users for Washington, D.C. Reagan-National-Idaho Falls Fanning Field flights.

Search Deals

From Washington, D.C. Reagan-National to Idaho Falls Fanning Field

Search Deals

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

Search Deals

Cheapflights Fare Finder

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

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

Washington, D.C.Idaho Falls

DCA Washington, D.C. Reagan-National - IDA Idaho Falls Fanning Field

DCAIDA

Washington, D.C. Reagan-National

Tue 9/29

6:00 am-3:21 pm

2 stops11h 21m

Idaho Falls Fanning Field

Wed 12/31

12:00 am-2:00 am

Nonstop0h 00m

$230

Washington, D.C.Idaho Falls

DCA Washington, D.C. Reagan-National - IDA Idaho Falls Fanning Field

DCAIDA

Washington, D.C. Reagan-National

Wed 9/30

6:00 am-3:21 pm

2 stops11h 21m

Idaho Falls Fanning Field

Wed 12/31

12:00 am-2:00 am

Nonstop0h 00m

$254

Quickest round-trip

Washington, D.C.Idaho Falls

DCA Washington, D.C. Reagan-National - IDA Idaho Falls Fanning Field

DCAIDA

Washington, D.C. Reagan-National

Tue 10/6

8:00 am-3:20 pm

1 stop9h 20m

Idaho Falls Fanning Field

Wed 12/31

12:00 am-2:00 am

Nonstop0h 00m

$270

Washington, D.C.Idaho Falls

DCA Washington, D.C. Reagan-National - IDA Idaho Falls Fanning Field

DCAIDA

Washington, D.C. Reagan-National

Sun 10/4

6:00 am-3:24 pm

2 stops11h 24m

Idaho Falls Fanning Field

Wed 12/31

12:00 am-2:00 am

Nonstop0h 00m

$280

Washington, D.C.Idaho Falls

DCA Washington, D.C. Reagan-National - IDA Idaho Falls Fanning Field

DCAIDA

Washington, D.C. Reagan-National

Fri 10/23

6:00 am-1:20 pm

1 stop9h 20m

Idaho Falls Fanning Field

Tue 10/27

6:37 am-6:48 pm

2 stops10h 11m

$466

Washington, D.C.Idaho Falls

DCA Washington, D.C. Reagan-National - IDA Idaho Falls Fanning Field

DCAIDA

Washington, D.C. Reagan-National

Tue 10/13

10:10 am-10:10 pm

2 stops14h 00m

Idaho Falls Fanning Field

Fri 10/16

6:56 pm-9:10 am

2 stops12h 14m

$470

Washington, D.C.Idaho Falls

DCA Washington, D.C. Reagan-National - IDA Idaho Falls Fanning Field

DCAIDA

Washington, D.C. Reagan-National

Fri 12/11

2:59 pm-10:07 pm

2 stops9h 08m

Idaho Falls Fanning Field

Tue 1/5

6:00 am-4:17 pm

1 stop8h 17m

$494

Washington, D.C.Idaho Falls

DCA Washington, D.C. Reagan-National - IDA Idaho Falls Fanning Field

DCAIDA

Washington, D.C. Reagan-National

Thu 12/24

4:01 pm-9:19 pm

1 stop7h 18m

Idaho Falls Fanning Field

Wed 1/6

7:00 am-2:56 pm

1 stop5h 56m

$496

Washington, D.C.Idaho Falls

DCA Washington, D.C. Reagan-National - IDA Idaho Falls Fanning Field

DCAIDA

Washington, D.C. Reagan-National

Fri 12/11

6:59 pm-10:39 pm

2 stops29h 40m

Idaho Falls Fanning Field

Tue 1/5

3:58 pm-4:00 pm

1 stop22h 02m

$516

Washington, D.C.Idaho Falls

DCA Washington, D.C. Reagan-National - IDA Idaho Falls Fanning Field

DCAIDA

Washington, D.C. Reagan-National

Wed 9/16

1:00 pm-5:01 pm

3 stops54h 01m

Idaho Falls Fanning Field

Wed 12/31

12:00 am-2:00 am

Nonstop0h 00m

$592

Flights are sorted by cheapest round-trip flights first.

Deals found on 9/8

Showing 1-10 of 14 resultsSorted by cheapest first

Compare providers for flights from Reagan-National to Idaho Falls

Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from Reagan-National to Idaho Falls in September.

Provider	Price Accuracy	Trust Score*
Expedia	Price Accuracy1 star	Trust Score*3 stars
FlightHub	Price Accuracy3 stars	Trust Score*3 stars

*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 Washington, D.C. Reagan-National Airport-Idaho Falls flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Washington, D.C. Reagan-National Airport-Idaho Falls flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Washington, D.C. Reagan-National Airport-Idaho Falls flight searches over the past month and is updated monthly.
Most trusted provider: When it comes to deals on Washington, D.C. Reagan-National Airport-Idaho Falls flights, Cheapflights users trust FlightHub the most. FlightHub 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 Washington, D.C. Reagan-National Airport-Idaho Falls 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 Reagan-National to Idaho Falls

Have a flexible travel schedule? Discover the best time to fly to Idaho Falls from Reagan-National with our price prediction graph.

DCA-IDA

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.

Related info for your journey

What airport do you fly into for flights to Idaho Falls from Washington, D.C. Reagan-National?
For a flight from Washington, D.C. Reagan-National to Idaho Falls, you will be flying into Fanning Field. Idaho Falls Fanning Field (IDA) is just 3.8 mi from the center of the city. Fanning Field is the only Idaho Falls airport and it handles 0 inbound flights from Washington, D.C. Reagan-National per day. 0 airlines have flights to Idaho Falls Fanning Field from Washington, D.C. Reagan-National on a regular basis.
How long is the flight from Washington, D.C. Reagan-National Airport to Idaho Falls?
Departing from Washington, D.C. Reagan-National Airport to Idaho Falls will take you 9h 20m. The distance from Washington, D.C. Reagan-National Airport to Idaho Falls is about 1835 mi. When browsing for deals, the options you’ll see will be for both nonstop flights and flights with stops.
Can I find deals for flights from Reagan-National to Idaho Falls that include hotel bookings?
Yes. In addition to deals on Reagan-National to Idaho Falls flights, Cheapflights offers vacation packages that include both flights and hotel.
How can I find direct flights from Reagan-National to Idaho Falls?
After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Reagan-National to Idaho Falls.
Can I find deals for business class flights from Reagan-National to Idaho Falls?
Yes. Cheapflights offers flight deals from Reagan-National to Idaho Falls 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

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$200+ Cheap flights from Reagan-National (DCA) to Idaho Falls (IDA)

This is the cheapest round-trip flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 9/29. Fares are subject to change and may not be available on all flights or dates of travel.

Find cheap flights from Reagan-National to Idaho Falls with Cheapflights

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Cheap flight deals from Reagan-National to Idaho Falls

Cheapest flights from Reagan-National to Idaho FallsExplore the most affordable flight options available from Reagan-National to Idaho Falls. Find the lowest fares from popular airlines and budget airlines, with prices last updated on September 11, 2026.

Explore the most affordable flight options available from Reagan-National to Idaho Falls. Find the lowest fares from popular airlines and budget airlines, with prices last updated on September 11, 2026.

Best flights from Reagan-National to Idaho FallsDiscover carefully curated flight deals from Reagan-National to Idaho Falls that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated September 11, 2026.

Discover carefully curated flight deals from Reagan-National to Idaho Falls that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated September 11, 2026.

Last-minute flights from Reagan-National to Idaho FallsDiscover last-minute flight deals from Reagan-National to Idaho Falls. Data last updated September 11, 2026 and is based on user searches.

Discover last-minute flight deals from Reagan-National to Idaho Falls. Data last updated September 11, 2026 and is based on user searches.

One-way flights from Reagan-National to Idaho FallsSearch for one-way flight options from Reagan-National to Idaho Falls. Find affordable one-way fares based on user searches. Data last updated September 11, 2026.

Search for one-way flight options from Reagan-National to Idaho Falls. Find affordable one-way fares based on user searches. Data last updated September 11, 2026.

Find flight deals from Reagan-National to Idaho Falls

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Round-trip from

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Cheapflights Fare Finder

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

Compare providers for flights from Reagan-National to Idaho Falls

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 Reagan-National to Idaho Falls in September.

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

Have a flexible travel schedule? Discover the best time to fly to Idaho Falls from Reagan-National with our price prediction graph.

Related info for your journey

What airport do you fly into for flights to Idaho Falls from Washington, D.C. Reagan-National?

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

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

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

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

Traveling to a place near Idaho Falls?

Browse thousands of different options on Cheapflights for your next trip

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Alternative routes for Reagan-National to Idaho Falls

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

Complete your trip

Complete your trip to Idaho Falls by adding a car rental and/or hotel reservation to your travel itinerary.

Search flights from Reagan-National to Idaho Falls by cabin class

Find flights from Reagan-National to Idaho Falls, based on your preferred cabin class, be it economy, premium economy, business, or first class.

Other flights to Idaho Falls

Explore flights to Idaho Falls departing from other origins. Flights are based on user searches made on Cheapflights and were last updated on September 11, 2026.

Reagan-National and Idaho Falls flights

Browse other Reagan-National and Idaho Falls flight options. Last updated on September 11, 2026.

Other flights from Reagan-National

Browse through other flights departing from Reagan-National. Flights are based on user searches made on Cheapflights and were last updated on September 11, 2026.

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Cheapest flights from Reagan-National to Idaho Falls
Explore the most affordable flight options available from Reagan-National to Idaho Falls. Find the lowest fares from popular airlines and budget airlines, with prices last updated on September 11, 2026.

Best flights from Reagan-National to Idaho Falls
Discover carefully curated flight deals from Reagan-National to Idaho Falls that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated September 11, 2026.

Last-minute flights from Reagan-National to Idaho Falls
Discover last-minute flight deals from Reagan-National to Idaho Falls. Data last updated September 11, 2026 and is based on user searches.

One-way flights from Reagan-National to Idaho Falls
Search for one-way flight options from Reagan-National to Idaho Falls. Find affordable one-way fares based on user searches. Data last updated September 11, 2026.