HomeSearch by dateVacation packagesHotelsFlight dealsCar rentalTravel tips & news
District of Columbia

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

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 10/20. Fares are subject to change and may not be available on all flights or dates of travel.
IDA — IAD
Oct 17 — Oct 241
Fri 10/17
Fri 10/24
1 adult, Economy
We work with more than 300 partners to bring you better travel deals

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

Keep the following information in mind while searching for Idaho Falls to District of Columbia flight deals. Data was last updated September 17, 2025.

Round-trip from

$412
(Alaska Airlines)

One-way from

$208
(American Airlines)
From Idaho Falls Fanning Field to District of Columbia
Search Deals
One-way flight from Idaho Falls Fanning Field to District of Columbia
Search Deals

Find flight deals from Idaho Falls to District of Columbia

Cheapest flights from Idaho Falls to District of Columbia
Explore the most affordable flight options available from Idaho Falls to District of Columbia. Find the lowest fares from popular airlines and budget airlines, with prices last updated on September 17, 2025.

This Alaska Airlines deal was found by Cheapflights users on 9/15. 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 11/43:50 pmIDA - IAD
1 stop12h 33mAlaska Airlines
Sat 11/87:43 amIAD - IDA
1 stop9h 30mAlaska Airlines
Deal found 9/15$412
This Alaska Airlines deal was found by Cheapflights users on 9/16. 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 11/86:05 amIDA - DCA
1 stop8h 48mAlaska Airlines
Wed 11/198:00 amDCA - IDA
1 stop9h 13mAlaska Airlines
Deal found 9/16$412
This United Airlines deal was found by Cheapflights users on 9/15. 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 10/72:35 pmIDA - IAD
1 stop6h 47mUnited Airlines
Sat 10/112:45 pmIAD - IDA
1 stop8h 07mUnited Airlines
Deal found 9/15$413
This Alaska 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 10/273:50 pmIDA - IAD
1 stop12h 33mAlaska Airlines
Fri 10/317:43 amIAD - IDA
1 stop9h 30mAlaska Airlines
Deal found 9/14$414
This American Airlines deal was found by Cheapflights users on 9/15. 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 10/271:11 pmIDA - DCA
1 stop7h 04mAmerican Airlines
Sat 11/16:59 amDCA - IDA
1 stop7h 25mAmerican Airlines
Deal found 9/15$414
This American Airlines deal was found by Cheapflights users on 9/15. 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 10/2712:55 pmIDA - IAD
1 stop7h 56mAmerican Airlines
Thu 10/306:11 amIAD - IDA
1 stop8h 30mAmerican Airlines
Deal found 9/15$415
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.
Mon 10/271:11 pmIDA - DCA
1 stop8h 01mAmerican Airlines
Fri 10/316:59 amDCA - IDA
1 stop7h 26mAmerican Airlines
Deal found 9/14$415
This American Airlines deal was found by Cheapflights users on 9/16. 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 11/87:10 amIDA - IAD
2 stops13h 18mAmerican Airlines
Wed 11/196:04 amIAD - IDA
1 stop9h 24mAmerican Airlines
Deal found 9/16$418
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.
Sat 10/2512:55 pmIDA - IAD
2 stops8h 58mAmerican Airlines
Fri 10/316:11 amIAD - IDA
1 stop8h 30mAmerican Airlines
Deal found 9/14$419
This American Airlines deal was found by Cheapflights users on 9/15. 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 12/81:58 pmIDA - IAD
1 stop7h 01mAmerican Airlines
Thu 12/119:15 amIAD - IDA
2 stops15h 21mAmerican Airlines
Deal found 9/15$420
This Alaska Airlines deal was found by Cheapflights users on 9/16. 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 10/76:00 amIDA - IAD
1 stop16h 23mAlaska Airlines
Sat 10/116:25 amIAD - IDA
1 stop18h 13mAlaska Airlines
Deal found 9/16$442
This American Airlines deal was found by Cheapflights users on 9/17. 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 10/271:11 pmIDA - DCA
1 stop8h 01mAmerican Airlines
Thu 10/301:30 pmDCA - IDA
1 stop10h 19mAmerican Airlines
Deal found 9/17$448

Cheapflights Fare Finder

 
Customize your flight search to find flights from Idaho Falls to District of Columbia 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 17, 2025.
Use the filters below to find and compare flights from Idaho Falls to District of Columbia that are best for you.

Fly from

Idaho Falls

Fly to

District of Columbia

Route

Depart

Return

Price

Idaho FallsWashington, D.C.

IDA - IAD

IDAIAD

Idaho Falls Fanning Field

Sat 11/8

3:50 pm-6:23 am

1 stop12h 33m

Washington, D.C. Dulles Intl

Wed 11/19

6:13 pm-3:13 pm

1 stop23h 00m

$412

Idaho FallsWashington, D.C.

IDA - DCA

IDADCA

Idaho Falls Fanning Field

Sat 11/8

6:05 am-4:53 pm

1 stop8h 48m

Washington, D.C. Reagan-National

Wed 11/19

8:00 am-3:13 pm

1 stop9h 13m

$412

Idaho FallsWashington, D.C.

IDA - IAD

IDAIAD

Idaho Falls Fanning Field

Sat 10/25

6:00 am-6:28 pm

1 stop10h 28m

Washington, D.C. Dulles Intl

Fri 10/31

7:43 am-3:13 pm

1 stop9h 30m

$413

Idaho FallsWashington, D.C.

IDA - IAD

IDAIAD

Idaho Falls Fanning Field

Fri 3/6

8:00 am-5:55 pm

1 stop7h 55m

Washington, D.C. Dulles Intl

Tue 3/10

7:00 am-3:23 pm

1 stop10h 23m

$414

Idaho FallsWashington, D.C.

IDA - IAD

IDAIAD

Idaho Falls Fanning Field

Sat 10/25

1:15 pm-11:33 pm

1 stop8h 18m

Washington, D.C. Dulles Intl

Thu 10/30

6:15 am-12:33 pm

1 stop8h 18m

$414

Idaho FallsWashington, D.C.

IDA - DCA

IDADCA

Idaho Falls Fanning Field

Mon 10/27

1:11 pm-10:15 pm

1 stop7h 04m

Washington, D.C. Reagan-National

Sat 11/1

3:30 pm-9:48 pm

1 stop8h 18m

$414

Idaho FallsWashington, D.C.

IDA - DCA

IDADCA

Idaho Falls Fanning Field

Sat 10/25

12:55 pm-10:15 pm

1 stop7h 20m

Washington, D.C. Reagan-National

Fri 10/31

6:59 am-12:25 pm

1 stop7h 26m

$414

Idaho FallsWashington, D.C.

IDA - IAD

IDAIAD

Idaho Falls Fanning Field

Mon 10/27

3:50 pm-6:23 am

1 stop12h 33m

Washington, D.C. Dulles Intl

Fri 10/31

7:43 am-3:13 pm

1 stop9h 30m

$414

Idaho FallsWashington, D.C.

IDA - IAD

IDAIAD

Idaho Falls Fanning Field

Mon 10/27

12:55 pm-10:51 pm

1 stop7h 56m

Washington, D.C. Dulles Intl

Thu 10/30

6:11 am-12:41 pm

1 stop8h 30m

$415

Idaho FallsWashington, D.C.

IDA - DCA

IDADCA

Idaho Falls Fanning Field

Mon 10/27

1:11 pm-11:12 pm

1 stop8h 01m

Washington, D.C. Reagan-National

Thu 10/30

1:30 pm-9:49 pm

1 stop10h 19m

$448

Flights are sorted by cheapest round-trip flights first.

Deals found on 9/17

Showing 1-10 of 38 results
1
2
3
4

Best time to book a flight from Idaho Falls to District of Columbia

Have a flexible travel schedule? Discover the best time to fly to District of Columbia 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.

Cheapflights Insights

Everything you need to know about your flight from Idaho Falls to District of Columbia

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

Currently, August is the cheapest month in which you can book a flight from Idaho Falls to District of Columbia (average of $292). Flying from Idaho Falls to District of Columbia in April is currently the most expensive (average of $337). 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 IDA to DC?

Find hourly flight availability from Idaho Falls to District of Columbia. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated September 17, 2025.

When flying from Idaho Falls to District of Columbia, the time of day you decide to fly out makes little to no difference towards the overall price you’ll pay on tickets.

Reviews of airlines servicing District of Columbia

Get insights into the airlines that provide service to District of Columbia. 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 District of Columbia. Reviews last updated September 17, 2025.
Read reviews from past customers who have flown United Airlines and American Airlines from Idaho Falls to District of Columbia. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
United Airlines
7.4
Good
8,926 reviews

Overall

7.4

Boarding

7.7

Crew

8.1

Comfort

7.3

Food

6.6

Entertainment

7.1

Reviews

1 / 20
10.0
Excellent

Julia,Sep 2025

BUF - DEN

The staff were amazing, from check in to boarding and on the flight. The range of entertainment options were really good as well.
United Airlines
7.4
Good
8,926 reviews
United Airlines
7.4
Good
8,926 reviews

Overall

7.4

Boarding

7.7

Crew

8.1

Comfort

7.3

Food

6.6

Entertainment

7.1

Reviews

1 / 20
10.0
Excellent

Julia,Sep 2025

BUF - DEN

The staff were amazing, from check in to boarding and on the flight. The range of entertainment options were really good as well.
American Airlines
7.2
Good
10,000 reviews
United Airlines
7.4
Good
8,926 reviews

Overall

7.4

Boarding

7.7

Crew

8.1

Comfort

7.3

Food

6.6

Entertainment

7.1

Reviews

1 / 20
10.0
Excellent

Julia,Sep 2025

BUF - DEN

The staff were amazing, from check in to boarding and on the flight. The range of entertainment options were really good as well.

Related info for your journey

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

    For a flight from Idaho Falls to District of Columbia, you will be flying from Fanning Field. Idaho Falls Fanning Field (IDA) is just 3.8 mi from the center of the city.

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

    For as low as $414, Alaska Airlines can have you in District of Columbia from Idaho Falls in 7h 04m. Airlines will cover a distance of 1835 mi. Both multi-stop and nonstop flights can be found to your destination and back.

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

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

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

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

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

    Yes. Cheapflights offers flight deals from Idaho Falls to District of Columbia 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 Idaho Falls to District of Columbia?

    Currently, August is the cheapest month in which you can book a flight from Idaho Falls to District of Columbia (average of $292). Flying from Idaho Falls to District of Columbia in April is currently the most expensive (average of $337). 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

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 Idaho Falls to District of Columbia

See prices for flight routes from nearby airports that may be better suited for you.
Boise to Las Vegas flights
Boise to Sky Harbor Intl flights
Boise to Seattle flights
Spokane to Seattle flights
Spokane to Sky Harbor Intl flights
Boise to Los Angeles flights
Boise to O'Hare Intl flights
Boise to Dallas/Fort Worth flights
Boise to Portland flights
Boise to Denver flights
Spokane to Dallas/Fort Worth flights
Spokane to Denver flights
Spokane to Las Vegas flights
Boise to Santa Ana flights
Boise to San Diego flights
Boise to Burbank flights
Spokane to Los Angeles flights
Boise to Minneapolis flights
Boise to Spokane flights
Boise to John F Kennedy Intl flights
Spokane to Boise flights
Boise to Honolulu flights
Spokane to Salt Lake City flights
Idaho Falls to Seattle flights
Boise to Sacramento flights
Spokane to Minneapolis flights
Boise to Orlando flights
Spokane to San Diego flights
Boise to Ontario flights
Spokane to Orlando flights
Boise to San Francisco flights
Boise to LaGuardia flights
Spokane to John F Kennedy Intl flights
Spokane to Hobby flights
Spokane to Portland flights
Spokane to Honolulu flights
Spokane to O'Hare Intl flights
Spokane to San Francisco flights
Boise to Atlanta flights
Boise to San Jose flights
Boise to Newark flights
Spokane to Kahului flights
Spokane to Sacramento flights
Boise to Fort Lauderdale flights
Boise to Hobby flights
Spokane to St. Louis flights
Idaho Falls to Dallas/Fort Worth flights
Spokane to Newark flights
Boise to Detroit flights
Boise to Boston flights

Top 2 airlines flying from Idaho Falls to District of Columbia

Discover the top 2 airlines that operate flights from Idaho Falls to District of Columbia. 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 17, 2025.
AirlineCheapestAverageFlexibilityOn-time
American AirlinesCheapest$369Average$560FlexibilityNo cancel feeOn-time71%
United AirlinesCheapest$394Average$651FlexibilityNo cancel feeOn-time69%

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.