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District of Columbia

$131+ 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 2/9. Fares are subject to change and may not be available on all flights or dates of travel.
IDA — IAD
Jan 17 — Jan 241
Sat 1/17
Sat 1/24
1 adult, Economy
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Cheap 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 December 18, 2025.

This United Airlines deal was found by Cheapflights users on 12/15. 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.
Mon 12/295:00 amIDA - IAD
1 stop8h 34mUnited Airlines
Thu 1/14:00 pmIAD - IDA
1 stop7h 14mUnited Airlines
Deal found 12/15$481
This Delta deal was found by Cheapflights users on 12/16. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/181:17 pmIDA - DCA
2 stops8h 20mDelta
Thu 1/15:11 pmDCA - IDA
1 stop7h 41mDelta
Deal found 12/16$676
This United Airlines deal was found by Cheapflights users on 12/17. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/186:40 amIDA - DCA
1 stop6h 19mUnited Airlines
Thu 1/14:17 pmDCA - IDA
1 stop6h 57mUnited Airlines
Deal found 12/17$681
This American Airlines deal was found by Cheapflights users on 12/15. 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 12/291:16 pmIDA - IAD
2 stops17h 26mAmerican Airlines
Thu 1/16:35 amIAD - IDA
2 stops17h 46mAmerican Airlines
Deal found 12/15$718
This American Airlines deal was found by Cheapflights users on 12/17. 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.
Sun 12/217:00 amIDA - DCA
2 stops11h 13mAmerican Airlines
Tue 12/2310:49 amDCA - IDA
2 stops13h 32mAmerican Airlines
Deal found 12/17$741
This American Airlines deal was found by Cheapflights users on 12/16. 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.
Thu 12/187:00 amIDA - DCA
2 stops11h 13mAmerican Airlines
Thu 1/11:44 pmDCA - IDA
2 stops10h 37mAmerican Airlines
Deal found 12/16$791
This American Airlines deal was found by Cheapflights users on 12/16. 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.
Wed 12/247:00 amIDA - DCA
2 stops12h 10mAmerican Airlines
Sun 12/281:07 pmDCA - IDA
2 stops11h 14mAmerican Airlines
Deal found 12/16$854
This American Airlines deal was found by Cheapflights users on 12/16. 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.
Thu 12/181:16 pmIDA - IAD
1 stop7h 17mAmerican Airlines
Thu 1/19:12 amIAD - IDA
2 stops15h 09mAmerican Airlines
Deal found 12/16$876
This United Airlines deal was found by Cheapflights users on 12/17. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/172:45 pmIDA - IAD
1 stop6h 30mUnited Airlines
Fri 12/194:00 pmIAD - IDA
1 stop8h 59mUnited Airlines
Deal found 12/17$886
This Delta deal was found by Cheapflights users on 12/16. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/181:17 pmIDA - IAD
1 stop8h 12mDelta
Thu 1/17:05 amIAD - IDA
1 stop7h 22mDelta
Deal found 12/16$903
This United Airlines deal was found by Cheapflights users on 12/16. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/246:40 amIDA - IAD
1 stop6h 54mUnited Airlines
Sun 12/2810:10 pmIAD - IDA
1 stop13h 48mUnited Airlines
Deal found 12/16$925
This Delta deal was found by Cheapflights users on 12/16. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/245:55 amIDA - IAD
2 stops14h 18mDelta
Sun 12/2812:32 pmIAD - IDA
2 stops12h 20mDelta
Deal found 12/16$1,275

Find 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 December 18, 2025.

Most accurate provider

eDreams
3 stars

Most trusted provider

eDreams
3 stars

Round-trip from

$341
(United Airlines)

One-way from

$131
(Kiwi.com)
Provider with most accurate pricing for Idaho Falls Fanning Field-Washington, D.C. (WAS) flight deals.
Search Deals
Provider most trusted by Cheapflights users for Idaho Falls Fanning Field-Washington, D.C. (WAS) flights.
Search Deals
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

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 December 18, 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

Mon 1/26

2:40 pm-11:22 pm

1 stop6h 42m

Washington, D.C. Dulles Intl

Sat 1/31

8:15 am-3:31 pm

1 stop9h 16m

$402

Idaho FallsWashington, D.C.

IDA - IAD

IDAIAD

Idaho Falls Fanning Field

Mon 4/13

4:00 pm-5:49 am

1 stop11h 49m

Washington, D.C. Dulles Intl

Fri 4/17

7:00 am-3:20 pm

1 stop10h 20m

$414

Idaho FallsWashington, D.C.

IDA - IAD

IDAIAD

Idaho Falls Fanning Field

Sat 5/16

4:20 pm-7:36 am

1 stop13h 16m

Washington, D.C. Dulles Intl

Wed 5/27

7:15 pm-3:40 pm

1 stop22h 25m

$414

Idaho FallsWashington, D.C.

IDA - IAD

IDAIAD

Idaho Falls Fanning Field

Mon 1/26

6:58 pm-4:26 pm

1 stop19h 28m

Washington, D.C. Dulles Intl

Fri 1/30

5:26 pm-10:59 pm

2 stops31h 33m

$433

Idaho FallsWashington, D.C.

IDA - IAD

IDAIAD

Idaho Falls Fanning Field

Mon 1/26

2:40 pm-11:22 pm

1 stop6h 42m

Washington, D.C. Dulles Intl

Fri 1/30

8:15 am-1:30 pm

1 stop7h 15m

$434

Idaho FallsWashington, D.C.

IDA - IAD

IDAIAD

Idaho Falls Fanning Field

Mon 3/30

2:35 pm-11:34 pm

1 stop6h 59m

Washington, D.C. Dulles Intl

Thu 4/2

8:15 am-1:24 pm

1 stop7h 09m

$437

Idaho FallsWashington, D.C.

IDA - DCA

IDADCA

Idaho Falls Fanning Field

Thu 2/12

2:02 pm-11:00 pm

1 stop6h 58m

Washington, D.C. Reagan-National

Sat 2/21

11:37 am-11:07 pm

2 stops13h 30m

$439

Idaho FallsWashington, D.C.

IDA - IAD

IDAIAD

Idaho Falls Fanning Field

Mon 1/5

5:00 am-1:16 pm

1 stop6h 16m

Washington, D.C. Dulles Intl

Thu 1/8

10:02 am-3:31 pm

1 stop7h 29m

$447

Idaho FallsWashington, D.C.

IDA - DCA

IDADCA

Idaho Falls Fanning Field

Fri 2/13

2:02 pm-11:00 pm

1 stop6h 58m

Washington, D.C. Reagan-National

Fri 2/20

6:30 am-1:30 pm

1 stop9h 00m

$479

Idaho FallsWashington, D.C.

IDA - IAD

IDAIAD

Idaho Falls Fanning Field

Mon 12/29

5:00 am-3:34 pm

1 stop8h 34m

Washington, D.C. Dulles Intl

Thu 1/1

4:00 pm-9:14 pm

1 stop7h 14m

$481

Flights are sorted by cheapest round-trip flights first.

Deals found on 12/17

Showing 1-10 of 34 results
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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, September is the cheapest month in which you can book a flight from Idaho Falls to District of Columbia (average of $225). Flying from Idaho Falls to District of Columbia in July is currently the most expensive (average of $522). 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 December 18, 2025.

Unlike in the morning, when flights are generally more expensive, you can save up to 21% on flights from Idaho Falls to District of Columbia by exploring options for tickets at noon.

How much does it cost to fly round-trip from Idaho Falls to District of Columbia?

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 December 18, 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
9,091 reviews

Food

6.6

Boarding

7.7

Entertainment

7.1

Crew

8.1

Overall

7.4

Comfort

7.3

Reviews

1 / 20
4.0
Okay

Kevin,Dec 2025

BOS - EWR

Seems like every United flight has a delay and it’s always someone else’s fault. Step up and take some accountability
United Airlines
7.4
Good
9,091 reviews
United Airlines
7.4
Good
9,091 reviews

Food

6.6

Boarding

7.7

Entertainment

7.1

Crew

8.1

Overall

7.4

Comfort

7.3

Reviews

1 / 20
4.0
Okay

Kevin,Dec 2025

BOS - EWR

Seems like every United flight has a delay and it’s always someone else’s fault. Step up and take some accountability
American Airlines
7.2
Good
11,054 reviews
United Airlines
7.4
Good
9,091 reviews

Food

6.6

Boarding

7.7

Entertainment

7.1

Crew

8.1

Overall

7.4

Comfort

7.3

Reviews

1 / 20
4.0
Okay

Kevin,Dec 2025

BOS - EWR

Seems like every United flight has a delay and it’s always someone else’s fault. Step up and take some accountability

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 $402, United Airlines can have you in District of Columbia from Idaho Falls in 6h 42m. Airlines will cover a distance of 1811 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, September is the cheapest month in which you can book a flight from Idaho Falls to District of Columbia (average of $225). Flying from Idaho Falls to District of Columbia in July is currently the most expensive (average of $522). 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

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Alternative routes for Idaho Falls to District of Columbia

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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 December 18, 2025.
AirlineCheapestAverageFlexibilityOn-time
American AirlinesCheapest$437Average$607FlexibilityNo cancel feeOn-time71%
United AirlinesCheapest$446Average$568FlexibilityNo cancel feeOn-time69%

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