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Idaho Falls

$208+ Cheap flights from District of Columbia to Idaho Falls (IDA)

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 2/1. Fares are subject to change and may not be available on all flights or dates of travel.
IAD — IDA
Oct 14 — Oct 211
Tue 10/14
Tue 10/21
1 adult, Economy
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Cheap flight deals from District of Columbia to Idaho Falls

Keep the following information in mind while searching for District of Columbia to Idaho Falls flight deals. Data was last updated September 14, 2025.

Round-trip from

$412
(Hawaiian Airlines)

One-way from

$208
(American Airlines)

Popular in

November

Cheapest in

January

Average price

$597
From District of Columbia to Idaho Falls Fanning Field
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One-way flight from District of Columbia to Idaho Falls Fanning Field
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Highest demand for flights based on searches. 7% potential increase in price ($52 potential increase over avg. RT price).
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Cheapest flight prices on average. 3% potential price decrease ($22 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 District of Columbia to Idaho Falls

Cheapest flights from District of Columbia to Idaho Falls
Explore the most affordable flight options available from District of Columbia to Idaho Falls. Find the lowest fares from popular airlines and budget airlines, with prices last updated on September 14, 2025.

This Hawaiian Airlines deal was found by Cheapflights users on 9/13. 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.
Sat 10/116:25 amIAD - IDA
1 stop11h 13mHawaiian Airlines
Sat 10/186:00 amIDA - IAD
1 stop10h 28mHawaiian Airlines
Deal found 9/13$412
This American Airlines deal was found by Cheapflights users on 9/13. 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 10/136:59 amDCA - IDA
1 stop7h 26mAmerican Airlines
Mon 10/201:11 pmIDA - DCA
1 stop8h 01mAmerican Airlines
Deal found 9/13$415
This Alaska Airlines deal was found by Cheapflights users on 9/11. 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 10/48:53 amIAD - IDA
1 stop8h 45mAlaska Airlines
Sat 10/116:00 amIDA - IAD
1 stop16h 23mAlaska Airlines
Deal found 9/11$492
This United Airlines deal was found by Cheapflights users on 9/11. 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.
Sat 9/274:23 pmDCA - IDA
1 stop6h 29mUnited Airlines
Wed 10/15:00 amIDA - DCA
1 stop8h 07mUnited Airlines
Deal found 9/11$506
This United Airlines deal was found by Cheapflights users on 9/11. 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.
Sat 9/274:00 pmIAD - IDA
1 stop6h 52mUnited Airlines
Wed 10/110:50 amIDA - IAD
1 stop6h 33mUnited Airlines
Deal found 9/11$506
This American Airlines deal was found by Cheapflights users on 9/12. 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 10/412:25 pmDCA - IDA
2 stops11h 00mAmerican Airlines
Sat 10/116:44 amIDA - DCA
1 stop16h 15mAmerican Airlines
Deal found 9/12$528
This Alaska Airlines deal was found by Cheapflights users on 9/13. 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 10/166:25 amIAD - IDA
1 stop11h 13mAlaska Airlines
Mon 10/204:15 pmIDA - IAD
1 stop13h 18mAlaska Airlines
Deal found 9/13$529
This Alaska Airlines deal was found by Cheapflights users on 9/11. 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 10/48:00 amDCA - IDA
1 stop9h 38mAlaska Airlines
Sat 10/116:00 amIDA - DCA
1 stop8h 48mAlaska Airlines
Deal found 9/11$547
This Kiwi.com deal was found by Cheapflights users on 9/13. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/37:00 amIAD - IDA
1 stop17h 39mAlaska Airlines
Mon 10/64:15 pmIDA - IAD
1 stop30h 08mAlaska Airlines
Deal found 9/13$548
This United Airlines deal was found by Cheapflights users on 9/12. 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.
Tue 10/712:35 pmIAD - IDA
1 stop6h 43mUnited Airlines
Fri 10/102:35 pmIDA - IAD
1 stop6h 47mUnited Airlines
Deal found 9/12$552
This United Airlines deal was found by Cheapflights users on 9/12. 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 10/1610:20 pmIAD - IDA
2 stops17h 13mUnited Airlines
Mon 10/205:56 pmIDA - IAD
1 stop9h 26mUnited Airlines
Deal found 9/12$556
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.
Thu 10/168:25 pmIAD - IDA
2 stops18h 16mAmerican Airlines
Mon 10/201:11 pmIDA - IAD
2 stops18h 44mAmerican Airlines
Deal found 9/14$557

Cheapflights Fare Finder

 
Customize your flight search to find flights from District of Columbia to Idaho Falls 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 14, 2025.
Use the filters below to find and compare flights from District of Columbia to Idaho Falls that are best for you.

Fly from

District of Columbia

Fly to

Idaho Falls

Route

Depart

Return

Price

Washington, D.C.Idaho Falls

IAD - IDA

IADIDA

Washington, D.C. Dulles Intl

Sat 10/11

6:25 am-3:38 pm

1 stop11h 13m

Idaho Falls Fanning Field

Sat 10/18

6:00 am-6:28 pm

1 stop10h 28m

$412

Washington, D.C.Idaho Falls

DCA - IDA

DCAIDA

Washington, D.C. Reagan-National

Wed 2/18

6:30 am-12:25 pm

1 stop7h 55m

Idaho Falls Fanning Field

Fri 2/27

1:34 pm-12:40 am

1 stop9h 06m

$414

Washington, D.C.Idaho Falls

DCA - IDA

DCAIDA

Washington, D.C. Reagan-National

Fri 2/20

5:00 am-12:25 pm

1 stop9h 25m

Idaho Falls Fanning Field

Wed 2/25

1:34 pm-10:59 pm

1 stop7h 25m

$452

Washington, D.C.Idaho Falls

DCA - IDA

DCAIDA

Washington, D.C. Reagan-National

Sat 2/21

5:15 pm-10:21 pm

1 stop7h 06m

Idaho Falls Fanning Field

Tue 2/24

6:00 am-4:19 pm

1 stop8h 19m

$492

Washington, D.C.Idaho Falls

IAD - IDA

IADIDA

Washington, D.C. Dulles Intl

Sat 10/4

8:53 am-3:38 pm

1 stop8h 45m

Idaho Falls Fanning Field

Sat 10/11

6:00 am-12:23 am

1 stop16h 23m

$492

Washington, D.C.Idaho Falls

DCA - IDA

DCAIDA

Washington, D.C. Reagan-National

Fri 2/20

5:00 am-12:25 pm

1 stop9h 25m

Idaho Falls Fanning Field

Tue 2/24

1:34 pm-10:59 pm

1 stop7h 25m

$504

Washington, D.C.Idaho Falls

DCA - IDA

DCAIDA

Washington, D.C. Reagan-National

Tue 3/10

6:30 am-12:22 pm

1 stop7h 52m

Idaho Falls Fanning Field

Wed 3/11

1:43 pm-11:00 pm

1 stop7h 17m

$505

Washington, D.C.Idaho Falls

DCA - IDA

DCAIDA

Washington, D.C. Reagan-National

Sat 9/27

4:23 pm-8:52 pm

1 stop6h 29m

Idaho Falls Fanning Field

Wed 10/1

5:00 am-3:07 pm

1 stop8h 07m

$506

Washington, D.C.Idaho Falls

IAD - IDA

IADIDA

Washington, D.C. Dulles Intl

Sat 9/27

4:00 pm-8:52 pm

1 stop6h 52m

Idaho Falls Fanning Field

Wed 10/1

10:50 am-7:23 pm

1 stop6h 33m

$506

Washington, D.C.Idaho Falls

IAD - IDA

IADIDA

Washington, D.C. Dulles Intl

Thu 10/16

6:25 am-3:38 pm

1 stop11h 13m

Idaho Falls Fanning Field

Mon 10/20

4:15 pm-7:33 am

1 stop13h 18m

$529

Flights are sorted by cheapest round-trip flights first.

Deals found on 9/13

Showing 1-10 of 21 results
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Best time to book a flight from District of Columbia to Idaho Falls

Have a flexible travel schedule? Discover the best time to fly to Idaho Falls from District of Columbia 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 District of Columbia to Idaho Falls

What is the cheapest month to book a flight from District of Columbia to Idaho Falls?

Currently, October is the cheapest month in which you can book a flight from District of Columbia to Idaho Falls (average of $380). Flying from District of Columbia to Idaho Falls in December is currently the most expensive (average of $578). 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.

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

Find hourly flight availability from District of Columbia to Idaho Falls. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated September 14, 2025.

Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from District of Columbia to Idaho Falls as you normally would.

Related info for your journey

Find useful and relevant information for your journey from District of Columbia to Idaho Falls. 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 into for flights to Idaho Falls from District of Columbia?

    If you book a flight to Idaho Falls from District of Columbia, you will be flying to Fanning Field, which is the city’s only airport. Idaho Falls Fanning Field (IDA) is located 3.8 mi from the center of Idaho Falls.

  • How long is the flight from District of Columbia to Idaho Falls?

    There are many flights that can get you from District of Columbia to Idaho Falls in 7h 55m. Fly via Hawaiian Airlines, American Airlines, or Alaska Airlines to get the fastest option. The distance from District of Columbia to Idaho Falls is about 1835 mi. This flight may include one or multiple stops.

  • What are the cheapest airlines to fly from District of Columbia to Idaho Falls one-way?

    The cheapest airline one-way is American Airlines, with whom users have recently found tickets for as low as $208. However, be on the lookout for offers from Allegiant Air and Alaska Airlines, as they are both options that can get you from District of Columbia to Idaho Falls for a low price.

  • Can I find deals for flights from District of Columbia to Idaho Falls that include hotel bookings?

    Yes. In addition to deals on District of Columbia to Idaho Falls flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from District of Columbia to Idaho Falls?

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

  • Can I find deals for business class flights from District of Columbia to Idaho Falls?

    Yes. Cheapflights offers flight deals from District of Columbia 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.

  • What is the cheapest month to book a flight from District of Columbia to Idaho Falls?

    Currently, October is the cheapest month in which you can book a flight from District of Columbia to Idaho Falls (average of $380). Flying from District of Columbia to Idaho Falls in December is currently the most expensive (average of $578). 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 Idaho Falls?

Book flights to Idaho Falls if you plan to visit one of these locations
Rexburg

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Top 3 airlines flying from District of Columbia to Idaho Falls

Discover the top 3 airlines that operate flights from District of Columbia to Idaho Falls. 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 14, 2025.
AirlineCheapestAverageFlexibilityOn-time
American AirlinesCheapest$334Average$721FlexibilityNo cancel feeOn-time71%
DeltaCheapest$334Average$489FlexibilityNo cancel feeOn-timeN/A
United AirlinesCheapest$388Average$711FlexibilityNo cancel feeOn-time69%

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