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$788+ Cheap flights from Fort Smith to Idaho Falls (FSM - 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 6/23. Fares are subject to change and may not be available on all flights or dates of travel.
FSM — IDA
Jun 17 — Jun 241
Tue 6/17
Tue 6/24
1 adult, Economy
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Find flight deals from Fort Smith to Idaho Falls

One-way flights from Fort Smith to Idaho Falls
Search for one-way flight options from Fort Smith to Idaho Falls. Find affordable one-way fares based on user searches. Data last updated June 12, 2025.

This American Airlines deal was found by Cheapflights users on 6/11. 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 6/236:01 amFSM - IDA
1 stop16h 34mAmerican Airlines
Deal found 6/11$788

Cheapflights Fare Finder

Customize your flight search to find flights from Fort Smith 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 June 12, 2025.
Use the filters below to find and compare flights from Fort Smith to Idaho Falls that are best for you.

Fly from

Fort Smith

Fly to

Idaho Falls

Route

Depart

Return

Price

Fort SmithIdaho Falls

FSM - IDA

FSMIDA

Fort Smith

Mon 6/23

6:01 am-9:35 pm

1 stop16h 34m

$788

Flights are sorted by cheapest round-trip flights first.

Deals found on 6/11

Best time to book a flight from Fort Smith to Idaho Falls

Have a flexible travel schedule? Discover the best time to fly to Idaho Falls from Fort Smith 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 Fort Smith to Idaho Falls

What is the cheapest month to book a flight from Fort Smith to Idaho Falls?

Currently, October is the cheapest month in which you can book a flight from Fort Smith to Idaho Falls (average of $380). Flying from Fort Smith to Idaho Falls in December is currently the most expensive (average of $578). 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.

Rainfall in Idaho Falls by month

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

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

Get insights into the airlines that provide service to Idaho Falls. 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 Idaho Falls. Reviews last updated June 12, 2025.
American Airlines
7.2
Good
10,000 reviews

Overall

7.2

Entertainment

6.9

Food

6.5

Boarding

7.5

Comfort

7.2

Crew

8.0

Reviews

1 / 20
2.0
Mediocre

Andrew,May 2025

LAX - MIA

2 hour delay. Discovered an engine problem late, we boarded the plane and they asked us to come off. To add insult to injury nothing was given to passengers to make amends. No free drink. No extra food or snacks. No free WiFi. Gimme a break
American Airlines
7.2
Good
10,000 reviews
American Airlines
7.2
Good
10,000 reviews

Overall

7.2

Entertainment

6.9

Food

6.5

Boarding

7.5

Comfort

7.2

Crew

8.0

Reviews

1 / 20
2.0
Mediocre

Andrew,May 2025

LAX - MIA

2 hour delay. Discovered an engine problem late, we boarded the plane and they asked us to come off. To add insult to injury nothing was given to passengers to make amends. No free drink. No extra food or snacks. No free WiFi. Gimme a break

Related info for your journey

Find useful and relevant information for your journey from Fort Smith to Idaho Falls. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

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

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

  • How can I find direct flights from Fort Smith to Idaho Falls?

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

  • Can I find deals for business class flights from Fort Smith to Idaho Falls?

    Yes. Cheapflights offers flight deals from Fort Smith 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 Fort Smith to Idaho Falls?

    Currently, October is the cheapest month in which you can book a flight from Fort Smith to Idaho Falls (average of $380). Flying from Fort Smith to Idaho Falls in December is currently the most expensive (average of $578). 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.

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