What are the cheapest airlines flying from Washington, D.C. Dulles Intl Airport to Idaho Falls round-trip?

Our cheapest airline available from Washington, D.C. Dulles Intl Airport to Idaho Falls is American Airlines. Our recent data shows that you can find tickets from as low as $345 on this airline. Additional options worth looking into are United Airlines and Delta, starting at $355 and $360 round-trip. American Airlines is currently priced 51% below the average price you’ll pay for this route.

What is the cheapest day to fly from Washington, D.C. Dulles Intl Airport to Idaho Falls?

Travelers seeking maximum savings on their Washington, D.C. Dulles Intl Airport to Idaho Falls flight should consider departing on Saturday mornings when fares are most often at their lowest. Sunday mornings flights should be avoided if possible as fares are typically the most expensive at this time.

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

Users have found that flying from Washington, D.C. Dulles Intl Airport to Idaho Falls on a Sunday typically leans towards higher prices. However, this doesn’t mean you still can’t find a deal. Flexibility with other aspects of your flight can still land a great price for your trip.

What is the cheapest month to fly from Washington, D.C. Dulles Intl Airport to Idaho Falls?

January is one of the best times of the year to fly to Idaho Falls from Washington, D.C. Dulles Intl Airport. Prices for January average $710 per person but you can even find prices for as low as $393. The most expensive prices can be found in the month of November. Opting for a January flight can save you 21% on your journey compared to booking in November

Most accurate provider : When it comes to deals on Washington, D.C. Dulles Intl Airport-Idaho Falls flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Washington, D.C. Dulles Intl Airport-Idaho Falls flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Washington, D.C. Dulles Intl Airport-Idaho Falls flight searches over the past month and is updated monthly.

Most trusted provider : When it comes to deals on Washington, D.C. Dulles Intl Airport-Idaho Falls flights, Cheapflights users trust FlightHub the most. FlightHub has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for Washington, D.C. Dulles Intl Airport-Idaho Falls flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.

What airport do you fly into for flights to Idaho Falls from Washington, D.C. Dulles Intl?

For a flight from Washington, D.C. Dulles Intl to Idaho Falls, you will be flying into 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 inbound flights from Washington, D.C. Dulles Intl per day. 2 airlines have flights to Idaho Falls Fanning Field from Washington, D.C. Dulles Intl on a regular basis.

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

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

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

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

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

Yes. Cheapflights offers flight deals from Dulles Intl 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.

$247+ Flights from Washington, D.C. Dulles Intl Airport to Idaho Falls

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Cheap flight deals from Dulles Intl to Idaho Falls

Most accurate provider	FlightHub 3 stars
Most trusted provider	FlightHub 3 stars
Round-trip from	$345 (American Airlines)
One-way from	$247 (Alaska Airlines)
Popular in	March
Cheapest in	January
Average price	$444

Provider with most accurate pricing for Washington, D.C. Dulles Intl-Idaho Falls Fanning Field flight deals.

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Provider most trusted by Cheapflights users for Washington, D.C. Dulles Intl-Idaho Falls Fanning Field flights.

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From Washington, D.C. Dulles Intl to Idaho Falls Fanning Field

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One-way flight from Washington, D.C. Dulles Intl to Idaho Falls Fanning Field

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High demand for flights, 2% potential price rise

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Best time to find cheap flights, 4% potential price drop

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Average for round-trip flights in January 2025

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Find flight deals from Dulles Intl to Idaho Falls

Cheapest flights from Dulles Intl to Idaho Falls
Explore the most affordable flight options available from Dulles Intl to Idaho Falls. Find the lowest fares from popular airlines and budget airlines, with prices last updated on January 5, 2025.

Tue 2/116:10 amIAD - IDA

1 stop8h 15mAmerican Airlines

Tue 2/187:31 amIDA - IAD

2 stops13h 02mAmerican Airlines

Deal found 1/4

$345

Wed 1/296:57 pmIAD - IDA

1 stop22h 30mAlaska Airlines

Wed 2/58:00 amIDA - IAD

1 stop7h 57mAlaska Airlines

Deal found 1/4

$355

Tue 2/412:29 pmIAD - IDA

2 stops12h 15mDelta

Wed 2/121:10 pmIDA - IAD

1 stop8h 24mDelta

Deal found 1/4

$360

Sat 1/188:33 amIAD - IDA

1 stop8h 45mUnited Airlines

Sat 1/2510:50 amIDA - IAD

1 stop8h 33mUnited Airlines

Deal found 1/4

$415

Best flights from Dulles Intl to Idaho Falls
Discover carefully curated flight deals from Dulles Intl to Idaho Falls that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated January 5, 2025.

Tue 2/116:10 amIAD - IDA

1 stop8h 15mAmerican Airlines

Tue 2/187:31 amIDA - IAD

2 stops13h 02mAmerican Airlines

Deal found 1/4

$345

Wed 1/294:00 pmIAD - IDA

1 stop7h 08mUnited Airlines

Wed 2/510:50 amIDA - IAD

1 stop6h 22mUnited Airlines

Deal found 1/4

$355

Tue 2/412:29 pmIAD - IDA

2 stops12h 15mDelta

Wed 2/121:10 pmIDA - IAD

1 stop8h 24mDelta

Deal found 1/4

$360

Tue 2/116:57 pmIAD - IDA

1 stop29h 36mAlaska Airlines

Wed 2/198:00 amIDA - IAD

1 stop7h 48mAlaska Airlines

Deal found 1/4

$373

Last-minute flights from Dulles Intl to Idaho Falls
Discover last-minute flight deals from Dulles Intl to Idaho Falls. Data last updated January 5, 2025 and is based on user searches.

Sat 1/117:20 amIAD - IDA

1 stop7h 10mDelta

Sat 1/251:10 pmIDA - IAD

1 stop8h 26mDelta

Deal found 1/4

$597

Wed 1/154:00 pmIAD - IDA

1 stop7h 08mUnited Airlines

Wed 1/292:28 pmIDA - IAD

1 stop7h 02mUnited Airlines

Deal found 1/4

$612

Wed 1/151:52 pmIAD - IDA

2 stops10h 25mAmerican Airlines

Wed 1/2912:55 pmIDA - IAD

1 stop7h 46mAmerican Airlines

Deal found 1/4

$617

Wed 1/156:57 pmIAD - IDA

1 stop22h 30mAlaska Airlines

Wed 1/228:00 amIDA - IAD

1 stop7h 57mAlaska Airlines

Deal found 1/4

$720

Sat 1/188:33 amIAD - IDA

1 stop8h 45mUnited Airlines

Sat 1/2510:50 amIDA - IAD

1 stop8h 33mUnited Airlines

Deal found 1/4

$415

Wed 1/296:57 pmIAD - IDA

1 stop22h 30mAlaska Airlines

Wed 2/58:00 amIDA - IAD

1 stop7h 57mAlaska Airlines

Deal found 1/4

$355

Tue 2/412:29 pmIAD - IDA

2 stops12h 15mDelta

Wed 2/121:10 pmIDA - IAD

1 stop8h 24mDelta

Deal found 1/4

$360

Tue 2/116:10 amIAD - IDA

1 stop8h 15mAmerican Airlines

Tue 2/187:31 amIDA - IAD

2 stops13h 02mAmerican Airlines

Deal found 1/4

$345

One-way flights from Dulles Intl to Idaho Falls
Search for one-way flight options from Dulles Intl to Idaho Falls. Find affordable one-way fares based on user searches. Data last updated January 5, 2025.

Fri 2/75:25 pmIAD - IDA

2 stops24h 02mAlaska Airlines

Deal found 1/4

$247

Fri 2/710:05 pmIAD - IDA

1 stop13h 47mUnited Airlines

Deal found 1/4

$293

Find flights from Dulles Intl to Idaho Falls within your budget

Fly from

Fly to

Route

Depart

Return

Price

Washington, D.C.Idaho Falls

IAD - IDA

IADIDA

Washington, D.C. Dulles Intl

Tue 2/11

6:10 am-12:25 pm

1 stop8h 15m

Idaho Falls Fanning Field

Tue 2/18

7:31 am-10:33 pm

2 stops13h 02m

$345

Washington, D.C.Idaho Falls

IAD - IDA

IADIDA

Washington, D.C. Dulles Intl

Wed 1/29

6:57 pm-3:27 pm

1 stop22h 30m

Idaho Falls Fanning Field

Wed 2/5

8:00 am-5:57 pm

1 stop7h 57m

$355

Washington, D.C.Idaho Falls

IAD - IDA

IADIDA

Washington, D.C. Dulles Intl

Tue 2/4

12:29 pm-10:44 pm

2 stops12h 15m

Idaho Falls Fanning Field

Wed 2/12

1:10 pm-11:34 pm

1 stop8h 24m

$360

Washington, D.C.Idaho Falls

IAD - IDA

IADIDA

Washington, D.C. Dulles Intl

Sat 1/18

8:33 am-3:18 pm

1 stop8h 45m

Idaho Falls Fanning Field

Sat 1/25

10:50 am-9:23 pm

1 stop8h 33m

$415

Washington, D.C.Idaho Falls

IAD - IDA

IADIDA

Washington, D.C. Dulles Intl

Fri 2/7

5:25 pm-3:27 pm

2 stops24h 02m

$247

Washington, D.C.Idaho Falls

IAD - IDA

IADIDA

Washington, D.C. Dulles Intl

Fri 2/7

10:05 pm-9:52 am

1 stop13h 47m

$293

Flights are sorted by cheapest round-trip flights first.

Deals found on 1/4

Compare providers for flights from Dulles Intl to Idaho Falls

Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from Dulles Intl to Idaho Falls in January.

Provider	Price Accuracy	Trust Score*
Expedia	Price Accuracy1 star	Trust Score*3 stars
FlightHub	Price Accuracy3 stars	Trust Score*3 stars

*The Trust Score is based on feedback from users after their booking experience. It measures overall satisfaction, helping us identify issues like hidden fees, problems during the ticketing process, and the quality of customer service. This score is our best indicator of the provider's quality and reliability.

Most accurate provider: When it comes to deals on Washington, D.C. Dulles Intl Airport-Idaho Falls flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Washington, D.C. Dulles Intl Airport-Idaho Falls flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Washington, D.C. Dulles Intl Airport-Idaho Falls flight searches over the past month and is updated monthly.
Most trusted provider: When it comes to deals on Washington, D.C. Dulles Intl Airport-Idaho Falls flights, Cheapflights users trust FlightHub the most. FlightHub has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for Washington, D.C. Dulles Intl Airport-Idaho Falls flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.

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

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

Travel insights for flights from Dulles Intl to Idaho Falls

Get recent, data-driven insights about flights from Dulles Intl to Idaho Falls including ideal travel times, pricing trends, and more.

What is the cheapest month to book a flight from Washington, D.C. Dulles Intl Airport to Idaho Falls?

Currently, October is the cheapest month in which you can book a flight from Washington, D.C. Dulles Intl Airport to Idaho Falls (average of $380). Flying from Washington, D.C. Dulles Intl Airport to Idaho Falls in July is currently the most expensive (average of $628). 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 IAD to IDA?

One of the essential ways to save on airfare from Washington, D.C. Dulles Intl Airport to Idaho Falls is to remain as flexible as possible. Flights that are at noon tend to be the most expensive. A flight in the morning could potentially save you up to 7% on airfare.

Rainfall in Idaho Falls by month

In terms of precipitation, rainfall in Idaho Falls ranges from 0.6 - 2.0 inches per month. May is typically the wettest month, when rainfall can reach 2.0 in. July is typically the driest time to visit Idaho Falls when rainfall is around 0.6 in.

Temperature in Idaho Falls by month

If weather is an important factor for your trip to Idaho Falls, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 69.8 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 23.0 F).

Reviews of airlines servicing Idaho Falls

See what other customers who have flown with American Airlines, United Airlines and Delta from Washington, D.C. to Idaho Falls have to say. Users can see the overall rating for each airline as well as how each is rated in terms of entertainment options, comfort, food, crew/service, and boarding process.

Alaska Airlines

8.0

Very good

9,606 reviews

Reviews

1 / 10

One or two midday non-stop flights from PDX to Santa Rosa would be great. The very early and late options are hard on older passengers.

Alaska Airlines

8.0

Very good

9,606 reviews

Alaska Airlines

8.0

Very good

9,606 reviews

Reviews

1 / 10

One or two midday non-stop flights from PDX to Santa Rosa would be great. The very early and late options are hard on older passengers.

Delta

8.0

Very good

8,526 reviews

Alaska Airlines

8.0

Very good

9,606 reviews

Reviews

1 / 10

One or two midday non-stop flights from PDX to Santa Rosa would be great. The very early and late options are hard on older passengers.

United Airlines

7.4

Good

8,963 reviews

Alaska Airlines

8.0

Very good

9,606 reviews

Reviews

1 / 10

One or two midday non-stop flights from PDX to Santa Rosa would be great. The very early and late options are hard on older passengers.

American Airlines

7.2

Good

10,000 reviews

Alaska Airlines

8.0

Very good

9,606 reviews

Reviews

1 / 10

One or two midday non-stop flights from PDX to Santa Rosa would be great. The very early and late options are hard on older passengers.

Related info for your journey

What airport do you fly into for flights to Idaho Falls from Washington, D.C. Dulles Intl?
For a flight from Washington, D.C. Dulles Intl to Idaho Falls, you will be flying into 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 inbound flights from Washington, D.C. Dulles Intl per day. 2 airlines have flights to Idaho Falls Fanning Field from Washington, D.C. Dulles Intl on a regular basis.
What are the cheapest airlines flying from Washington, D.C. Dulles Intl Airport to Idaho Falls round-trip?
Our cheapest airline available from Washington, D.C. Dulles Intl Airport to Idaho Falls is American Airlines. Our recent data shows that you can find tickets from as low as $345 on this airline. Additional options worth looking into are United Airlines and Delta, starting at $355 and $360 round-trip. American Airlines is currently priced 51% below the average price you’ll pay for this route.
Can I find deals for flights from Dulles Intl to Idaho Falls that include hotel bookings?
Yes. In addition to deals on Dulles Intl to Idaho Falls flights, Cheapflights offers vacation packages that include both flights and hotel.
How can I find direct flights from Dulles Intl to Idaho Falls?
After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Dulles Intl to Idaho Falls.
Can I find deals for business class flights from Dulles Intl to Idaho Falls?
Yes. Cheapflights offers flight deals from Dulles Intl 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 Washington, D.C. Dulles Intl Airport to Idaho Falls?
Currently, October is the cheapest month in which you can book a flight from Washington, D.C. Dulles Intl Airport to Idaho Falls (average of $380). Flying from Washington, D.C. Dulles Intl Airport to Idaho Falls in July is currently the most expensive (average of $628). 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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Top 2 airlines flying from Dulles Intl to Idaho Falls

Airline	Cheapest	Average	Flexibility	On-time
Alaska Airlines	Cheapest$425	Average$500	FlexibilityNo cancel fee	On-time75%
United Airlines	Cheapest$480	Average$774	FlexibilityNo cancel fee	On-time69%

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$247+ Cheap flights from Dulles Intl (IAD) 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 2/7. Fares are subject to change and may not be available on all flights or dates of travel.

Find cheap flights from Dulles Intl to Idaho Falls with Cheapflights

1. Tell us where you want to go

2. Select your favorite providers

3. Compare prices and book

Cheap flight deals from Dulles Intl to Idaho Falls

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Round-trip from

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Cheapest in

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Find flight deals from Dulles Intl to Idaho Falls

Cheapest flights from Dulles Intl to Idaho FallsExplore the most affordable flight options available from Dulles Intl to Idaho Falls. Find the lowest fares from popular airlines and budget airlines, with prices last updated on January 5, 2025.

Explore the most affordable flight options available from Dulles Intl to Idaho Falls. Find the lowest fares from popular airlines and budget airlines, with prices last updated on January 5, 2025.

Find flights from Dulles Intl to Idaho Falls within your budget

Compare providers for flights from Dulles Intl to Idaho Falls

Provider information is updated monthly. Please note that these providers often have deals for this flight, but the availability may vary on a day-by-day basis on Cheapflights.

Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from Dulles Intl to Idaho Falls in January.

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

Have a flexible travel schedule? Discover the best time to fly to Idaho Falls from Dulles Intl with our price prediction graph.

Travel insights for flights from Dulles Intl to Idaho Falls

Get recent, data-driven insights about flights from Dulles Intl to Idaho Falls including ideal travel times, pricing trends, and more.

What is the cheapest month to book a flight from Washington, D.C. Dulles Intl Airport to Idaho Falls?

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

Find hourly flight availability from Dulles Intl 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 January 5, 2025.

Rainfall in Idaho Falls by month

Plan your trip to Idaho Falls by taking into account the average rainfall totals by month.

Temperature in Idaho Falls by month

Plan your trip to Idaho Falls by taking into account the average temperature totals by month.

Reviews of airlines servicing Idaho Falls

Related info for your journey

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

What are the cheapest airlines flying from Washington, D.C. Dulles Intl Airport to Idaho Falls round-trip?

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

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

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

What is the cheapest month to book a flight from Washington, D.C. Dulles Intl Airport to Idaho Falls?

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 Dulles Intl to Idaho Falls

See prices for flight routes from nearby airports that may be better suited for you.

Top 2 airlines flying from Dulles Intl to Idaho Falls

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Cheapest flights from Dulles Intl to Idaho Falls
Explore the most affordable flight options available from Dulles Intl to Idaho Falls. Find the lowest fares from popular airlines and budget airlines, with prices last updated on January 5, 2025.