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Dulles Intl

$260+ Cheap flights from Idaho Falls (IDA) to Dulles Intl (IAD)

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 10/23. Fares are subject to change and may not be available on all flights or dates of travel.
IDA — IAD
Aug 24 — Aug 311
Sun 8/24
Sun 8/31
1 adult, Economy
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Cheap flight deals from Idaho Falls to Dulles Intl

Discover tips and strategies to find the most affordable flight options for your journey from Idaho Falls (IDA) to Dulles Intl (IAD). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated August 19, 2025.

Round-trip from

$423
(United Airlines)

One-way from

$260
(Hawaiian Airlines)

Popular in

June

Cheapest in

September

Average price

$484
From Idaho Falls Fanning Field to Washington, D.C. Dulles Intl
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One-way flight from Idaho Falls Fanning Field to Washington, D.C. Dulles Intl
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Highest demand for flights based on searches. 25% potential increase in price ($209 potential increase over avg. RT price).
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Cheapest flight prices on average. 6% potential price decrease ($41 potential savings vs. average RT price).
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Average for round-trip flights in August 2025
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Find flight deals from Idaho Falls to Dulles Intl

Cheapest flights from Idaho Falls to Dulles Intl
Explore the most affordable flight options available from Idaho Falls to Dulles Intl. Find the lowest fares from popular airlines and budget airlines, with prices last updated on August 19, 2025.

This United Airlines deal was found by Cheapflights users on 8/19. 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 11/128:30 amIDA - IAD
1 stop8h 22mUnited Airlines
Sun 11/168:25 amIAD - IDA
1 stop8h 51mUnited Airlines
Deal found 8/19$423
This Hawaiian Airlines deal was found by Cheapflights users on 8/18. 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.
Fri 10/246:00 amIDA - IAD
1 stop10h 28mHawaiian Airlines
Tue 10/287:43 amIAD - IDA
1 stop9h 30mHawaiian Airlines
Deal found 8/18$469
This American Airlines deal was found by Cheapflights users on 8/18. 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 9/206:44 amIDA - IAD
1 stop8h 03mAmerican Airlines
Sat 9/276:25 amIAD - IDA
1 stop8h 34mAmerican Airlines
Deal found 8/18$474
This American Airlines deal was found by Cheapflights users on 8/18. 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 10/236:52 amIDA - IAD
1 stop8h 12mAmerican Airlines
Mon 10/276:11 amIAD - IDA
1 stop8h 30mAmerican Airlines
Deal found 8/18$501
This Alaska Airlines deal was found by Cheapflights users on 8/18. 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 10/236:00 amIDA - IAD
1 stop10h 28mAlaska Airlines
Mon 10/277:43 amIAD - IDA
1 stop9h 30mAlaska Airlines
Deal found 8/18$520
This United Airlines deal was found by Cheapflights users on 8/18. 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 10/237:00 amIDA - IAD
1 stop20h 22mUnited Airlines
Mon 10/2710:10 pmIAD - IDA
1 stop13h 38mUnited Airlines
Deal found 8/18$547
This American Airlines deal was found by Cheapflights users on 8/18. 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.
Fri 9/261:35 pmIDA - IAD
1 stop7h 10mAmerican Airlines
Fri 10/36:25 amIAD - IDA
1 stop8h 34mAmerican Airlines
Deal found 8/18$585

Cheapflights Fare Finder

 
Customize your flight search to find flights from Idaho Falls to Dulles Intl 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 August 19, 2025.
Use the filters below to find and compare flights from Idaho Falls to Washington, D.C. Dulles Intl Airport that are best for you.

Fly from

Idaho Falls

Fly to

Dulles Intl

Route

Depart

Return

Price

Idaho FallsWashington, D.C.

IDA - IAD

IDAIAD

Idaho Falls Fanning Field

Wed 11/12

8:30 am-6:52 pm

1 stop8h 22m

Washington, D.C. Dulles Intl

Sun 11/16

8:25 am-3:16 pm

1 stop8h 51m

$423

Idaho FallsWashington, D.C.

IDA - IAD

IDAIAD

Idaho Falls Fanning Field

Fri 10/24

6:00 am-6:28 pm

1 stop10h 28m

Washington, D.C. Dulles Intl

Tue 10/28

7:43 am-3:13 pm

1 stop9h 30m

$469

Idaho FallsWashington, D.C.

IDA - IAD

IDAIAD

Idaho Falls Fanning Field

Sat 9/20

6:44 am-4:47 pm

1 stop8h 03m

Washington, D.C. Dulles Intl

Sat 9/27

6:25 am-12:59 pm

1 stop8h 34m

$474

Idaho FallsWashington, D.C.

IDA - IAD

IDAIAD

Idaho Falls Fanning Field

Thu 10/23

6:52 am-5:04 pm

1 stop8h 12m

Washington, D.C. Dulles Intl

Mon 10/27

6:11 am-12:41 pm

1 stop8h 30m

$501

Idaho FallsWashington, D.C.

IDA - IAD

IDAIAD

Idaho Falls Fanning Field

Thu 10/23

6:00 am-6:28 pm

1 stop10h 28m

Washington, D.C. Dulles Intl

Mon 10/27

7:43 am-3:13 pm

1 stop9h 30m

$520

Idaho FallsWashington, D.C.

IDA - IAD

IDAIAD

Idaho Falls Fanning Field

Thu 10/23

7:00 am-5:22 am

1 stop20h 22m

Washington, D.C. Dulles Intl

Mon 10/27

10:10 pm-9:48 am

1 stop13h 38m

$547

Idaho FallsWashington, D.C.

IDA - IAD

IDAIAD

Idaho Falls Fanning Field

Fri 9/26

1:35 pm-10:45 pm

1 stop7h 10m

Washington, D.C. Dulles Intl

Fri 10/3

6:25 am-12:59 pm

1 stop8h 34m

$585

Idaho FallsWashington, D.C.

IDA - IAD

IDAIAD

Idaho Falls Fanning Field

Thu 10/23

6:00 am-6:28 pm

1 stop10h 28m

$260

Idaho FallsWashington, D.C.

IDA - IAD

IDAIAD

Idaho Falls Fanning Field

Thu 10/23

1:11 pm-11:53 pm

2 stops8h 42m

$281

Idaho FallsWashington, D.C.

IDA - IAD

IDAIAD

Idaho Falls Fanning Field

Thu 10/23

4:15 pm-3:26 pm

3 stops45h 11m

$477

Flights are sorted by cheapest round-trip flights first.

Deals found on 8/18

Best time to book a flight from Idaho Falls to Dulles Intl

Have a flexible travel schedule? Discover the best time to fly to Dulles Intl 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.

Reviews of airlines servicing Dulles Intl

Get insights into the airlines that provide service to Dulles Intl. 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 Dulles Intl. Reviews last updated August 19, 2025.
Peruse reviews from past customers who have flown with Delta and United Airlines from Idaho Falls to Washington, D.C. Dulles Intl Airport to help guide your decision. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.
Delta
8.0
Very good
7,981 reviews

Food

7.3

Boarding

8.2

Overall

8.0

Crew

8.5

Comfort

7.9

Entertainment

7.9

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!
Delta
8.0
Very good
7,981 reviews
Delta
8.0
Very good
7,981 reviews

Food

7.3

Boarding

8.2

Overall

8.0

Crew

8.5

Comfort

7.9

Entertainment

7.9

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!
United Airlines
7.4
Good
8,922 reviews
Delta
8.0
Very good
7,981 reviews

Food

7.3

Boarding

8.2

Overall

8.0

Crew

8.5

Comfort

7.9

Entertainment

7.9

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!

Related info for your journey

Find useful and relevant information for your journey from Idaho Falls to Dulles Intl. 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 Washington, D.C. Dulles Intl?

    For a flight from Idaho Falls to Washington, D.C. Dulles Intl, you will be flying from Fanning Field. Idaho Falls Fanning Field (IDA) is just 3.8 mi from the center of the city. Fanning Field is the only Idaho Falls airport and it handles 0 outbound flights to Washington, D.C. Dulles Intl per day. 1 airline has flights to Washington, D.C. Dulles Intl from Idaho Falls Fanning Field on a regular basis.

  • How long is the flight from Idaho Falls to Washington, D.C. Dulles Intl Airport?

    United Airlines, Hawaiian Airlines, and American Airlines can get you from Idaho Falls to Washington, D.C. Dulles Intl Airport in just under 8h 03m. Your travel time can differ by up to 2h 25m. The distance between Idaho Falls and Washington, D.C. Dulles Intl Airport is about 1811 mi. This flight may include one or multiple stops.

  • What is the cheapest airline to fly from Idaho Falls to Washington, D.C. Dulles Intl Airport round-trip?

    Our cheapest airline available from Idaho Falls to Washington, D.C. Dulles Intl Airport is United Airlines. Our recent data shows that you can find tickets from as low as $464 on this airline. You may be able to fly from Idaho Falls to Washington, D.C. Dulles Intl Airport for 24% less than the average price by searching for this airline.

  • Can I find deals for flights from Idaho Falls to Dulles Intl that include hotel bookings?

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

  • How can I find direct flights from Idaho Falls to Dulles Intl?

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

  • Can I find deals for business class flights from Idaho Falls to Dulles Intl?

    Yes. Cheapflights offers flight deals from Idaho Falls to Dulles Intl 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 Washington, D.C. Dulles Intl Airport?

    Currently, July is the cheapest month in which you can book a flight from Idaho Falls to Washington, D.C. Dulles Intl Airport (average of $303). Flying from Idaho Falls to Washington, D.C. Dulles Intl Airport 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

Traveling to a place near Washington, D.C. Dulles Intl Airport?

Book flights to Washington, D.C. Dulles Intl Airport if you plan to visit one of these locations
Woodbridge
Arlington
Alexandria
Tysons
Silver Spring
Springfield
Fredericksburg
Gaithersburg
Towson
Linthicum Heights
Fairfax
Manassas
Falls Church
Laurel
Rockville
Oxon Hill
National Harbor
Dundalk
Waldorf
Bowie

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Top airline flying from Idaho Falls to Dulles Intl

Discover the top airline that operate flights from Idaho Falls to Dulles Intl. 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 August 19, 2025.
AirlineCheapestAverageFlexibilityOn-time
United AirlinesCheapest$464Average$686FlexibilityNo cancel feeOn-time69%

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