How long is the flight from Washington, D.C. to Idaho Falls?

Airlines like Delta, United Airlines, and Alaska Airlines fly from Washington, D.C. to Idaho Falls in about 7h 17m. The time it takes to get you to your destination can typically vary by up to 2h 56m. The distance from Washington, D.C. to Idaho Falls is about 1845 mi. When browsing for deals, the options you’ll see will be for both nonstop flights and flights with stops.

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

United Airlines, at $333, was found to be the cheapest airline from Washington, D.C. to Idaho Falls. An alternate airline flying to your destination would be Alaska Airlines.

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 are the most popular routes from Washington, D.C. to Idaho Falls?

When deciding which route to take from Washington, D.C. to Idaho Falls consider Washington, D.C. Dulles Intl - Idaho Falls Fanning Field, Baltimore/Washington - Idaho Falls Fanning Field or Washington, D.C. Reagan-National - Idaho Falls Fanning Field as they are the most popular.

What is the cheapest time of day to fly from WAS 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. to Idaho Falls as you normally would.

Most accurate provider : When it comes to deals on Washington, D.C.-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.-Idaho Falls flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Washington, D.C.-Idaho Falls flight searches over the past month and is updated monthly.

Most trusted provider : When it comes to deals on Washington, D.C.-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.-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.?

Located just 3.8 mi from the city center, Idaho Falls Fanning Field is the airport most travelers will use when flying to Idaho Falls from Washington, D.C.. Booking flights from Washington, D.C. to Fanning Field (IDA) should be relatively easy as there are 0 daily inbound flights from Washington, D.C. from 3 different airlines.

Can I find deals for flights from Washington, D.C. to Idaho Falls that include hotel bookings?

Yes. In addition to deals on Washington, D.C. to Idaho Falls flights, Cheapflights offers vacation packages that include both flights and hotel.

How can I find direct flights from Washington, D.C. to Idaho Falls?

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

Can I find deals for business class flights from Washington, D.C. to Idaho Falls?

Yes. Cheapflights offers flight deals from Washington, D.C. 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.

$160+ Cheap Flights from Washington, D.C. to Idaho Falls

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Cheap flight deals from Washington, D.C. to Idaho Falls

Cheapest

Best

Last-minute

One-way

Cheapest flights from Washington, D.C. to Idaho Falls
Explore the most affordable flight options available from Washington, D.C. to Idaho Falls. Find the lowest fares from popular airlines and budget airlines, with prices last updated on October 11, 2026.

Thu 11/57:00 am -

1 stop7h 22m

Sun 11/86:56 pm -

1 stop8h 49m

Deal found 10/8

$379

Mon 11/237:00 am -

2 stops13h 17m

Thu 11/266:00 am -

2 stops11h 54m

Deal found 10/8

$393

Thu 12/33:31 pm -

1 stop8h 18m

Wed 12/91:41 pm -

1 stop8h 18m

Deal found 10/6

$399

Thu 12/32:42 pm -

1 stop9h 07m

Wed 12/91:41 pm -

1 stop7h 49m

Deal found 10/6

$399

Thu 11/56:13 am -

1 stop8h 09m

Sun 11/86:56 pm -

2 stops12h 13m

Deal found 10/8

$404

Thu 11/512:27 pm -

2 stops11h 43m

Mon 11/91:11 pm -

2 stops8h 26m

Deal found 10/9

$409

Thu 11/512:30 pm -

2 stops11h 40m

Mon 11/96:57 pm -

2 stops12h 12m

Deal found 10/9

$409

Thu 12/310:29 am -

2 stops13h 38m

Wed 12/96:59 pm -

1 stop9h 01m

Deal found 10/6

$414

Sat 10/2412:37 pm -

2 stops11h 33m

Wed 10/286:56 pm -

1 stop8h 49m

Deal found 10/7

$421

Fri 11/66:10 am -

1 stop9h 18m

Mon 11/92:35 pm -

1 stop6h 40m

Deal found 10/9

$421

Tue 11/38:20 am -

1 stop7h 08m

Fri 11/62:35 pm -

1 stop6h 40m

Deal found 10/6

$424

Thu 10/2210:01 am -

2 stops29h 33m

Mon 10/267:30 pm -

1 stop8h 50m

Deal found 10/7

$428

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

Mon 3/227:10 am -

1 stop7h 17m

Thu 3/256:45 pm -

1 stop9h 15m

Deal found 10/9

$379

Tue 11/38:23 am -

1 stop9h 15m

Fri 11/62:35 pm -

1 stop6h 33m

Deal found 10/6

$445

Sun 11/17:05 am -

1 stop10h 13m

Tue 11/31:53 pm -

1 stop13h 51m

Deal found 10/10

$489

Thu 11/57:00 am -

1 stop7h 22m

Sun 11/86:56 pm -

1 stop8h 49m

Deal found 10/8

$379

Thu 11/56:13 am -

1 stop8h 09m

Sun 11/86:56 pm -

2 stops12h 13m

Deal found 10/8

$404

Fri 10/306:10 am -

1 stop9h 18m

Mon 11/22:35 pm -

1 stop6h 38m

Deal found 10/6

$479

Thu 11/511:13 am -

2 stops12h 57m

Sun 11/86:56 pm -

2 stops13h 06m

Deal found 10/8

$409

Tue 11/35:11 pm -

1 stop24h 07m

Fri 11/63:55 pm -

1 stop22h 16m

Deal found 10/6

$541

Fri 1/84:10 pm -

1 stop7h 00m

Tue 1/127:00 am -

1 stop6h 04m

Deal found 10/9

$499

Mon 1/43:00 pm -

2 stops9h 19m

Thu 1/71:10 pm -

1 stop8h 30m

Deal found 10/6

$428

Fri 10/308:23 am -

1 stop9h 15m

Mon 11/22:35 pm -

1 stop6h 33m

Deal found 10/6

$499

Fri 11/65:17 pm -

1 stop24h 01m

Sun 11/81:53 pm -

1 stop13h 51m

Deal found 10/6

$601

Mon 1/46:45 am -

1 stop8h 43m

Sat 1/92:30 pm -

1 stop6h 56m

Deal found 10/10

$499

Wed 10/2110:21 am -

2 stops13h 49m

Fri 10/236:56 pm -

1 stop8h 49m

Deal found 10/7

$454

Sat 10/2412:37 pm -

2 stops11h 33m

Wed 10/286:56 pm -

1 stop8h 49m

Deal found 10/8

$454

Mon 1/46:45 am -

1 stop8h 43m

Thu 1/77:00 am -

1 stop8h 10m

Deal found 10/6

$500

Fri 1/85:30 pm -

2 stops21h 49m

Tue 1/123:58 pm -

2 stops22h 29m

Deal found 10/7

$611

Fri 1/84:15 pm -

1 stop6h 55m

Tue 1/127:00 am -

1 stop5h 55m

Deal found 10/10

$519

Thu 10/227:00 am -

1 stop7h 22m

Mon 10/266:56 pm -

2 stops12h 20m

Deal found 10/7

$499

Fri 1/84:15 pm -

1 stop6h 55m

Tue 1/122:30 pm -

1 stop6h 56m

Deal found 10/10

$519

Mon 1/43:00 pm -

2 stops9h 19m

Sat 1/91:10 pm -

1 stop8h 30m

Deal found 10/10

$504

Fri 11/66:10 am -

1 stop9h 18m

Sat 11/72:35 pm -

1 stop6h 40m

Deal found 10/6

$554

Tue 10/2012:26 pm -

2 stops11h 44m

Fri 10/236:56 pm -

2 stops13h 13m

Deal found 10/6

$515

Mon 1/43:10 pm -

2 stops9h 09m

Thu 1/76:00 am -

1 stop8h 17m

Deal found 10/6

$544

Thu 10/2212:30 pm -

2 stops11h 40m

Mon 10/266:56 pm -

2 stops12h 23m

Deal found 10/7

$574

Wed 10/2112:27 pm -

2 stops11h 43m

Thu 10/296:56 pm -

1 stop19h 53m

Deal found 10/7

$600

Tue 11/36:13 am -

1 stop8h 09m

Fri 11/61:05 pm -

2 stops9h 37m

Deal found 10/6

$634

Thu 12/310:15 am -

2 stops13h 52m

Wed 12/96:59 pm -

2 stops13h 06m

Deal found 10/6

$639

Last-minute flights from Washington, D.C. to Idaho Falls
Discover last-minute flight deals from Washington, D.C. to Idaho Falls. Data last updated October 11, 2026 and is based on user searches.

Thu 10/2210:01 am -

2 stops29h 33m

Mon 10/267:30 pm -

1 stop8h 50m

Deal found 10/7

$428

Sat 10/2412:37 pm -

2 stops11h 33m

Wed 10/286:56 pm -

1 stop8h 49m

Deal found 10/7

$421

Sat 10/2412:27 pm -

2 stops11h 43m

Sat 10/316:00 am -

1 stop8h 49m

Deal found 10/7

$441

Sat 10/2412:20 pm -

2 stops11h 50m

Wed 10/281:05 pm -

1 stop8h 30m

Deal found 10/7

$441

Tue 11/38:20 am -

1 stop7h 08m

Fri 11/62:35 pm -

1 stop6h 40m

Deal found 10/6

$424

Thu 11/57:00 am -

1 stop7h 22m

Sun 11/86:56 pm -

1 stop8h 49m

Deal found 10/8

$379

Thu 11/56:13 am -

1 stop8h 09m

Sun 11/86:56 pm -

2 stops12h 13m

Deal found 10/8

$404

Thu 11/511:13 am -

2 stops12h 57m

Sun 11/86:56 pm -

2 stops13h 06m

Deal found 10/8

$409

Thu 11/512:30 pm -

2 stops11h 40m

Mon 11/96:57 pm -

2 stops12h 12m

Deal found 10/9

$409

Fri 11/66:10 am -

1 stop9h 18m

Mon 11/92:35 pm -

1 stop6h 40m

Deal found 10/9

$421

Mon 11/237:00 am -

2 stops13h 17m

Thu 11/266:00 am -

2 stops11h 54m

Deal found 10/8

$393

Tue 11/241:09 pm -

1 stop24h 37m

Mon 11/303:32 pm -

2 stops26h 40m

Deal found 10/8

$436

One-way flights from Washington, D.C. to Idaho Falls
Search for one-way flight options from Washington, D.C. to Idaho Falls. Find affordable one-way fares based on user searches. Data last updated October 11, 2026.

Wed 12/212:06 pm -

2 stops29h 09m

Wed 12/3112:00 am -

Nonstop0h 00m

Deal found 10/7

$160

Fri 10/307:17 am -

1 stop8h 03m

Wed 12/3112:00 am -

Nonstop0h 00m

Deal found 10/7

$190

Fri 10/309:50 am -

2 stops10h 26m

Wed 12/3112:00 am -

Nonstop0h 00m

Deal found 10/7

$195

Fri 10/307:45 am -

1 stop7h 35m

Wed 12/3112:00 am -

Nonstop0h 00m

Deal found 10/7

$200

Thu 11/56:13 am -

1 stop8h 09m

Wed 12/3112:00 am -

Nonstop0h 00m

Deal found 10/6

$200

Fri 10/309:40 am -

2 stops10h 36m

Wed 12/3112:00 am -

Nonstop0h 00m

Deal found 10/7

$205

Fri 10/3012:30 pm -

2 stops11h 40m

Wed 12/3112:00 am -

Nonstop0h 00m

Deal found 10/7

$205

Fri 11/66:10 am -

1 stop9h 18m

Wed 12/3112:00 am -

Nonstop0h 00m

Deal found 10/8

$220

Sat 11/79:06 pm -

3 stops41h 47m

Wed 12/3112:00 am -

Nonstop0h 00m

Deal found 10/6

$223

Wed 12/27:00 am -

3 stops34h 15m

Wed 12/3112:00 am -

Nonstop0h 00m

Deal found 10/7

$229

Fri 11/68:41 pm -

3 stops37h 31m

Wed 12/3112:00 am -

Nonstop0h 00m

Deal found 10/7

$247

Fri 11/69:06 pm -

3 stops37h 06m

Wed 12/3112:00 am -

Nonstop0h 00m

Deal found 10/7

$247

Find flight deals from Washington, D.C. to Idaho Falls

Most accurate provider	FlightHub 3 stars
Most trusted provider	FlightHub 3 stars
Round-trip from	$379 (Delta)
One-way from	$160 (Kiwi.com)

Provider with most accurate pricing for Washington, D.C. (WAS)-Idaho Falls Fanning Field flight deals.

Search Deals

Provider most trusted by Cheapflights users for Washington, D.C. (WAS)-Idaho Falls Fanning Field flights.

Search Deals

From Washington, D.C. (WAS) to Idaho Falls Fanning Field

Search Deals

One-way flight from Washington, D.C. (WAS) to Idaho Falls Fanning Field

Search Deals

Cheapflights Fare Finder

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

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

Quickest round-trip

BaltimoreIdaho Falls

BWI Baltimore/Washington - IDA Idaho Falls Fanning Field

BWIIDA

Baltimore/Washington

Mon 11/2

7:00 am-12:22 pm

1 stop7h 22m

Idaho Falls Fanning Field

Wed 12/31

12:00 am-2:00 am

Nonstop0h 00m

$190

BaltimoreIdaho Falls

BWI Baltimore/Washington - IDA Idaho Falls Fanning Field

BWIIDA

Baltimore/Washington

Thu 11/5

6:10 am-1:28 pm

2 stops9h 18m

Idaho Falls Fanning Field

Wed 12/31

12:00 am-2:00 am

Nonstop0h 00m

$195

BaltimoreIdaho Falls

BWI Baltimore/Washington - IDA Idaho Falls Fanning Field

BWIIDA

Baltimore/Washington

Fri 10/30

9:50 am-6:16 pm

2 stops10h 26m

Idaho Falls Fanning Field

Wed 12/31

12:00 am-2:00 am

Nonstop0h 00m

$195

Washington, D.C.Idaho Falls

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

DCAIDA

Washington, D.C. Reagan-National

Fri 10/30

7:45 am-1:20 pm

1 stop7h 35m

Idaho Falls Fanning Field

Wed 12/31

12:00 am-2:00 am

Nonstop0h 00m

$200

Washington, D.C.Idaho Falls

IAD Washington, D.C. Dulles Intl - IDA Idaho Falls Fanning Field

IADIDA

Washington, D.C. Dulles Intl

Mon 11/9

6:10 am-1:28 pm

1 stop9h 18m

Idaho Falls Fanning Field

Wed 12/31

12:00 am-2:00 am

Nonstop0h 00m

$200

Washington, D.C.Idaho Falls

IAD Washington, D.C. Dulles Intl - IDA Idaho Falls Fanning Field

IADIDA

Washington, D.C. Dulles Intl

Fri 10/30

6:13 am-12:22 pm

1 stop8h 09m

Idaho Falls Fanning Field

Wed 12/31

12:00 am-2:00 am

Nonstop0h 00m

$200

Washington, D.C.Idaho Falls

IAD Washington, D.C. Dulles Intl - IDA Idaho Falls Fanning Field

IADIDA

Washington, D.C. Dulles Intl

Thu 11/5

6:10 am-1:28 pm

1 stop9h 18m

Idaho Falls Fanning Field

Wed 12/31

12:00 am-2:00 am

Nonstop0h 00m

$200

Washington, D.C.Idaho Falls

IAD Washington, D.C. Dulles Intl - IDA Idaho Falls Fanning Field

IADIDA

Washington, D.C. Dulles Intl

Mon 11/2

6:13 am-12:22 pm

1 stop8h 09m

Idaho Falls Fanning Field

Wed 12/31

12:00 am-2:00 am

Nonstop0h 00m

$200

Washington, D.C.Idaho Falls

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

DCAIDA

Washington, D.C. Reagan-National

Fri 10/30

9:40 am-6:16 pm

2 stops10h 36m

Idaho Falls Fanning Field

Wed 12/31

12:00 am-2:00 am

Nonstop0h 00m

$205

Washington, D.C.Idaho Falls

IAD Washington, D.C. Dulles Intl - IDA Idaho Falls Fanning Field

IADIDA

Washington, D.C. Dulles Intl

Fri 11/6

6:10 am-1:28 pm

1 stop9h 18m

Idaho Falls Fanning Field

Wed 12/31

12:00 am-2:00 am

Nonstop0h 00m

$220

Flights are sorted by cheapest round-trip flights first.

Deals found on 10/7

Showing 1-10 of 53 resultsSorted by cheapest first

...

Compare providers for flights from Washington, D.C. to Idaho Falls

Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from Washington, D.C. to Idaho Falls in October.

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.-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.-Idaho Falls flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Washington, D.C.-Idaho Falls flight searches over the past month and is updated monthly.
Most trusted provider: When it comes to deals on Washington, D.C.-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.-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 Washington, D.C. to Idaho Falls

Have a flexible travel schedule? Discover the best time to fly to Idaho Falls from Washington, D.C. with our price prediction graph.

WAS-IDA

BWI-IDA

IAD-IDA

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.

Cheapflights Insights

Everything you need to know about your flight from Washington, D.C. to Idaho Falls

WAS-IDA

BWI-IDA

IAD-IDA

DCA-IDA

No data available for this route at this time. Please check back soon.

Reviews of airlines servicing Idaho Falls

Read through reviews of airlines operating flights from Washington, D.C. to Idaho Falls, such as Delta,United Airlines, andAmerican Airlines. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.

Delta

7.8

Good

8,653 reviews

Reviews

1 / 20

6.0

Good

Ellen,Oct 2026

GRR - ATL

The flight was delayed more then 30 minutes after I hurried and stressed to get to my connecting gate in Atlanta.

Delta

7.8

Good

8,653 reviews

Delta

7.8

Good

8,653 reviews

Reviews

1 / 20

6.0

Good

Ellen,Oct 2026

GRR - ATL

The flight was delayed more then 30 minutes after I hurried and stressed to get to my connecting gate in Atlanta.

United Airlines

7.4

Good

10,339 reviews

Delta

7.8

Good

8,653 reviews

Reviews

1 / 20

6.0

Good

Ellen,Oct 2026

GRR - ATL

The flight was delayed more then 30 minutes after I hurried and stressed to get to my connecting gate in Atlanta.

American Airlines

7.0

Good

12,142 reviews

Delta

7.8

Good

8,653 reviews

Reviews

1 / 20

6.0

Good

Ellen,Oct 2026

GRR - ATL

The flight was delayed more then 30 minutes after I hurried and stressed to get to my connecting gate in Atlanta.

Related info for your journey

What airport do you fly into for flights to Idaho Falls from Washington, D.C.?
Located just 3.8 mi from the city center, Idaho Falls Fanning Field is the airport most travelers will use when flying to Idaho Falls from Washington, D.C.. Booking flights from Washington, D.C. to Fanning Field (IDA) should be relatively easy as there are 0 daily inbound flights from Washington, D.C. from 3 different airlines.
How long is the flight from Washington, D.C. to Idaho Falls?
Airlines like Delta, United Airlines, and Alaska Airlines fly from Washington, D.C. to Idaho Falls in about 7h 17m. The time it takes to get you to your destination can typically vary by up to 2h 56m. The distance from Washington, D.C. to Idaho Falls is about 1845 mi. When browsing for deals, the options you’ll see will be for both nonstop flights and flights with stops.
What are the cheapest airlines flying from Washington, D.C. to Idaho Falls round-trip?
United Airlines, at $333, was found to be the cheapest airline from Washington, D.C. to Idaho Falls. An alternate airline flying to your destination would be Alaska Airlines.
What are the most popular routes from Washington, D.C. to Idaho Falls?
When deciding which route to take from Washington, D.C. to Idaho Falls consider Washington, D.C. Dulles Intl - Idaho Falls Fanning Field, Baltimore/Washington - Idaho Falls Fanning Field or Washington, D.C. Reagan-National - Idaho Falls Fanning Field as they are the most popular.
Can I find deals for flights from Washington, D.C. to Idaho Falls that include hotel bookings?
Yes. In addition to deals on Washington, D.C. to Idaho Falls flights, Cheapflights offers vacation packages that include both flights and hotel.
How can I find direct flights from Washington, D.C. to Idaho Falls?
After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Washington, D.C. to Idaho Falls.
Can I find deals for business class flights from Washington, D.C. to Idaho Falls?
Yes. Cheapflights offers flight deals from Washington, D.C. 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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Alternative routes for Washington, D.C. to Idaho Falls

Reagan-National to Spokane flights

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Dulles Intl to Spokane flights

Dulles Intl to Boise flights

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Dulles Intl to Idaho Falls flights

Reagan-National to Idaho Falls flights

Reagan-National to Pocatello flights

Dulles Intl to Pocatello flights

Dulles Intl to West Yellowstone flights

Top 3 airlines flying from Washington, D.C. to Idaho Falls

Airline	Cheapest	Average	Flexibility	On-time
United Airlines	Cheapest$274	Average$595	FlexibilityNo cancel fee	On-time69%
Alaska Airlines	Cheapest$433	Average$708	FlexibilityNo cancel fee	On-time75%
American Airlines	Cheapest$448	Average$651	FlexibilityNo cancel fee	On-time71%

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$160+ Cheap flights from Washington, D.C. (WAS) 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 12/2. Fares are subject to change and may not be available on all flights or dates of travel.

Find cheap flights from Washington, D.C. to Idaho Falls with Cheapflights

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Cheap flight deals from Washington, D.C. to Idaho Falls

Cheapest flights from Washington, D.C. to Idaho FallsExplore the most affordable flight options available from Washington, D.C. to Idaho Falls. Find the lowest fares from popular airlines and budget airlines, with prices last updated on October 11, 2026.

Explore the most affordable flight options available from Washington, D.C. to Idaho Falls. Find the lowest fares from popular airlines and budget airlines, with prices last updated on October 11, 2026.

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

Discover carefully curated flight deals from Washington, D.C. to Idaho Falls that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated October 11, 2026.

Last-minute flights from Washington, D.C. to Idaho FallsDiscover last-minute flight deals from Washington, D.C. to Idaho Falls. Data last updated October 11, 2026 and is based on user searches.

Discover last-minute flight deals from Washington, D.C. to Idaho Falls. Data last updated October 11, 2026 and is based on user searches.

One-way flights from Washington, D.C. to Idaho FallsSearch for one-way flight options from Washington, D.C. to Idaho Falls. Find affordable one-way fares based on user searches. Data last updated October 11, 2026.

Search for one-way flight options from Washington, D.C. to Idaho Falls. Find affordable one-way fares based on user searches. Data last updated October 11, 2026.

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Reviews of airlines servicing Idaho Falls

Read through reviews of airlines operating flights from Washington, D.C. to Idaho Falls, such as Delta,United Airlines, andAmerican Airlines. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.

Related info for your journey

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Alternative routes for Washington, D.C. to Idaho Falls

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Other flights to Idaho Falls

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Washington, D.C. and Idaho Falls flights

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Other flights from Washington, D.C.

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Washington, D.C. to Idaho Falls flights

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Cheapest flights from Washington, D.C. to Idaho Falls
Explore the most affordable flight options available from Washington, D.C. to Idaho Falls. Find the lowest fares from popular airlines and budget airlines, with prices last updated on October 11, 2026.

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

Last-minute flights from Washington, D.C. to Idaho Falls
Discover last-minute flight deals from Washington, D.C. to Idaho Falls. Data last updated October 11, 2026 and is based on user searches.

One-way flights from Washington, D.C. to Idaho Falls
Search for one-way flight options from Washington, D.C. to Idaho Falls. Find affordable one-way fares based on user searches. Data last updated October 11, 2026.