HomeSearch by dateVacation packagesHotelsFlight dealsCar rentalTravel tips & news
Idaho Falls

$144+ 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 2/25. Fares are subject to change and may not be available on all flights or dates of travel.
IAD — IDA
Feb 28 — Mar 71
Sat 2/28
Sat 3/7
1 adult, Economy
We work with more than 300 partners to bring you better travel deals

Find cheap flights from District of Columbia to Idaho Falls with Cheapflights

1. Tell us where you want to go

Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”

2. Select your favorite providers

We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.

3. Compare prices and book

Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.

Cheap 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 January 29, 2026.

This Alaska Airlines deal was found by Cheapflights users on 1/28. 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.
Tue 10/278:00 am
DCA
-
IDA
1 stop9h 29m
Alaska Airlines
Sat 10/316:15 am
IDA
-
DCA
1 stop7h 53m
Alaska Airlines
Deal found 1/28$309
This Alaska Airlines deal was found by Cheapflights users on 1/28. 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.
Tue 10/276:30 am
IAD
-
IDA
1 stop10h 59m
Alaska Airlines
Sat 10/316:15 am
IDA
-
IAD
1 stop9h 01m
Alaska Airlines
Deal found 1/28$309
This Delta deal was found by Cheapflights users on 1/27. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 2/2412:59 pm
DCA
-
IDA
2 stops11h 22m
Delta
Tue 3/35:25 am
IDA
-
DCA
2 stops11h 08m
Delta
Deal found 1/27$329
This United Airlines deal was found by Cheapflights users on 1/27. 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 2/243:58 pm
IAD
-
IDA
1 stop7h 00m
United Airlines
Tue 3/32:40 pm
IDA
-
IAD
1 stop6h 39m
United Airlines
Deal found 1/27$337
This Alaska Airlines deal was found by Cheapflights users on 1/27. 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.
Tue 2/245:00 pm
DCA
-
IDA
1 stop8h 36m
Alaska Airlines
Tue 3/35:20 pm
IDA
-
DCA
1 stop20h 46m
Alaska Airlines
Deal found 1/27$354
This United Airlines deal was found by Cheapflights users on 1/28. 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.
Mon 6/295:15 pm
IAD
-
IDA
1 stop7h 38m
United Airlines
Sat 7/44:15 pm
IDA
-
IAD
1 stop6h 17m
United Airlines
Deal found 1/28$362
This United Airlines deal was found by Cheapflights users on 1/27. 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 7/710:22 am
IAD
-
IDA
1 stop9h 00m
United Airlines
Fri 7/104:15 pm
IDA
-
IAD
1 stop6h 17m
United Airlines
Deal found 1/27$374
This Alaska Airlines deal was found by Cheapflights users on 1/27. 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 2/185:00 pm
DCA
-
IDA
1 stop8h 36m
Alaska Airlines
Fri 2/278:00 am
IDA
-
DCA
1 stop11h 59m
Alaska Airlines
Deal found 1/27$399
This Alaska Airlines deal was found by Cheapflights users on 1/27. 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 5/79:00 am
IAD
-
IDA
1 stop8h 29m
Alaska Airlines
Sat 5/231:43 pm
IDA
-
IAD
1 stop8h 16m
Alaska Airlines
Deal found 1/27$399
This United Airlines deal was found by Cheapflights users on 1/27. 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 2/104:11 pm
DCA
-
IDA
1 stop7h 03m
United Airlines
Sun 2/156:35 am
IDA
-
DCA
1 stop6h 24m
United Airlines
Deal found 1/27$404
This United Airlines deal was found by Cheapflights users on 1/27. 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 2/108:15 am
IAD
-
IDA
1 stop7h 15m
United Airlines
Sun 2/156:35 am
IDA
-
IAD
1 stop8h 07m
United Airlines
Deal found 1/27$404
This United Airlines deal was found by Cheapflights users on 1/27. 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 10/272:25 pm
IAD
-
IDA
1 stop8h 43m
United Airlines
Sat 10/312:35 pm
IDA
-
IAD
2 stops15h 47m
United Airlines
Deal found 1/27$413

Find 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 January 29, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$329
(Delta)

One-way from

$144
(American Airlines)

Popular in

June

Cheapest in

January

Average price

$403
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 District of Columbia to Idaho Falls Fanning Field
Search Deals
One-way flight from District of Columbia to Idaho Falls Fanning Field
Search Deals
Highest demand for flights based on searches. 8% potential increase in price ($56 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 3% potential price decrease ($19 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in January 2026
Search Deals

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 January 29, 2026.
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

DCA - IDA

DCAIDA

Washington, D.C. Reagan-National

Tue 2/24

5:10 pm-10:21 pm

1 stop7h 11m

Idaho Falls Fanning Field

Tue 3/3

5:25 am-6:33 pm

2 stops11h 08m

$339

Washington, D.C.Idaho Falls

IAD - IDA

IADIDA

Washington, D.C. Dulles Intl

Mon 6/29

5:15 pm-10:53 pm

1 stop7h 38m

Idaho Falls Fanning Field

Sat 7/4

4:15 pm-12:32 am

1 stop6h 17m

$362

Washington, D.C.Idaho Falls

DCA - IDA

DCAIDA

Washington, D.C. Reagan-National

Wed 2/18

5:00 pm-11:36 pm

1 stop8h 36m

Idaho Falls Fanning Field

Fri 2/27

8:00 am-9:59 pm

1 stop11h 59m

$399

Washington, D.C.Idaho Falls

IAD - IDA

IADIDA

Washington, D.C. Dulles Intl

Tue 6/30

6:35 am-1:31 pm

1 stop8h 56m

Idaho Falls Fanning Field

Sat 7/4

4:15 pm-12:32 am

1 stop6h 17m

$414

Washington, D.C.Idaho Falls

IAD - IDA

IADIDA

Washington, D.C. Dulles Intl

Sun 6/28

6:35 am-1:31 pm

1 stop8h 56m

Idaho Falls Fanning Field

Sat 7/4

5:00 am-1:27 pm

1 stop6h 27m

$414

Washington, D.C.Idaho Falls

DCA - IDA

DCAIDA

Washington, D.C. Reagan-National

Tue 2/10

5:10 pm-10:57 pm

1 stop7h 47m

Idaho Falls Fanning Field

Tue 2/17

6:35 pm-4:27 pm

2 stops19h 52m

$442

Washington, D.C.Idaho Falls

IAD - IDA

IADIDA

Washington, D.C. Dulles Intl

Wed 2/11

10:02 am-3:31 pm

1 stop7h 29m

Idaho Falls Fanning Field

Thu 2/19

2:40 pm-11:19 pm

1 stop6h 39m

$449

Washington, D.C.Idaho Falls

IAD - IDA

IADIDA

Washington, D.C. Dulles Intl

Wed 2/18

7:05 am-11:36 pm

1 stop18h 31m

Idaho Falls Fanning Field

Fri 2/27

5:20 pm-5:20 pm

1 stop22h 00m

$453

Washington, D.C.Idaho Falls

IAD - IDA

IADIDA

Washington, D.C. Dulles Intl

Wed 2/18

7:05 am-12:22 pm

1 stop7h 17m

Idaho Falls Fanning Field

Fri 2/27

6:35 pm-9:54 am

2 stops13h 19m

$455

Washington, D.C.Idaho Falls

IAD - IDA

IADIDA

Washington, D.C. Dulles Intl

Fri 4/24

9:00 am-3:29 pm

1 stop8h 29m

Idaho Falls Fanning Field

Tue 4/28

4:06 pm-5:41 pm

2 stops23h 35m

$456

Flights are sorted by cheapest round-trip flights first.

Deals found on 1/27

Showing 1-10 of 39 results
1
2
3
4

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, February is the cheapest month in which you can book a flight from District of Columbia to Idaho Falls (average of $260). Flying from District of Columbia to Idaho Falls in June is currently the most expensive (average of $438). 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.

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 11m. Fly via Delta, United 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.

  • 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, February is the cheapest month in which you can book a flight from District of Columbia to Idaho Falls (average of $260). Flying from District of Columbia to Idaho Falls in June is currently the most expensive (average of $438). 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

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Alternative routes for District of Columbia to Idaho Falls

See prices for flight routes from nearby airports that may be better suited for you.
Newark to Jackson flights
John F Kennedy Intl to Jackson flights
Seattle to Spokane flights
LaGuardia to Jackson flights
O'Hare Intl to Jackson flights
Seattle to Boise flights
Los Angeles to Jackson flights
Los Angeles to Spokane flights
Los Angeles to Boise flights
Denver to Spokane flights
Minneapolis to Spokane flights
Dallas/Fort Worth to Jackson flights
Sky Harbor Intl to Boise flights
Boston to Jackson flights
Portland to Boise flights
San Francisco to Spokane flights
Dallas/Fort Worth to Spokane flights
Denver to Boise flights
Atlanta to Jackson flights
O'Hare Intl to Boise flights
O'Hare Intl to Spokane flights
San Francisco to Boise flights
Denver to Jackson flights
Dulles Intl to Jackson flights
San Francisco to Jackson flights
Minneapolis to Boise flights
Burbank to Boise flights
Atlanta to Boise flights
Reagan-National to Jackson flights
Atlanta to Spokane flights
San Jose to Boise flights
John F Kennedy Intl to Spokane flights
Sky Harbor Intl to Spokane flights
Hobby to Spokane flights
John F Kennedy Intl to Boise flights
Santa Ana to Boise flights
Los Angeles to Hailey flights
Charlotte to Jackson flights
San Diego to Boise flights
Newark to Spokane flights
Baltimore to Jackson flights
Seattle to Jackson flights
Sacramento to Spokane flights
Ontario to Jackson flights
Salt Lake City to Spokane flights
Salt Lake City to Boise flights
Boston to Boise flights
Dallas/Fort Worth to Boise flights
Orlando to Jackson flights
Philadelphia to Jackson flights

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 January 29, 2026.
AirlineCheapestAverageFlexibilityOn-time
DeltaCheapest$360Average$473FlexibilityNo cancel feeOn-timeN/A
United AirlinesCheapest$388Average$707FlexibilityNo cancel feeOn-time69%
American AirlinesCheapest$480Average$571FlexibilityNo cancel feeOn-time71%

100% Free

Cheapflights is completely free to use, so you can start saving the moment you arrive.

Book with Flexibility

Our users can plan ahead with confidence and find flights with no change fees

Travel Smart

Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.