$235 Cheap Flights from Idaho Falls (IDA) to Butte (BTM)

View $235 flight on Sun, Oct 12, 2025Opens in a new window

Popular airlines from Idaho Falls Regional Airport (IDA) to Butte, MT (BTM-Bert Mooney)

Cheap Flights from Idaho Falls to Butte (IDA-BTM)

Prices were available within the past 7 days and start at $235 for one-way flights and for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Flights from Idaho Falls (IDA) to Butte (BTM)
Origin airport
Idaho Falls Regional
Destination airport
Bert Mooney
Distance
169 mi

Idaho Falls to Butte Flights

The cheapest times to fly from Idaho Falls to Butte

On average, Thursday can be the cheapest time to fly, according to data from the Airlines Reporting Corporation (ARC), one of the world's biggest databases for global airline sales. The data reveals that you could save up to 16% by flying on a Thursday—the cheapest day to travel on average—instead of a Sunday—the most expensive. Some of the most affordable flights from Idaho Falls to Butte are during the month of . You can find some of the cheapest flights from Idaho Falls to Butte with Expedia's search tool and vast selection of airlines.

 

The best time to book a flight from Idaho Falls to Butte

Sunday is one of the best days to book for cheap flights from Idaho Falls to Butte: Tickets reserved on a Sunday cost between 6% and 13% less than those reserved on a Friday, according to ARC data. The data also suggests booking early can also lead to cheaper airfares. You could save 24% by buying your tickets for domestic flights at least a month in advance and 10% by booking international flights 2 months in advance.

 

How to find cheap round-trip tickets from Idaho Falls to Butte

Being flexible with your dates and using Expedia's Price Drop Protection and Price Tracking features are some of the best ways of finding a cheap ticket from Idaho Falls to Butte in 2025. You can also book with separate airlines for your outbound and return journeys, from $235 one-way. Expedia also offers Price Drop Protection, so if the cost of your airfare goes down after booking, you'll receive a credit for the difference*. This is available for a small fee, and is free to One Key Gold and Platinum tier members.

 

Expedia's Price Tracking feature means you can stay on top of airfares without manually checking every day. It sends you automated price alerts for cheap Idaho Falls to Butte flights and uses historical data to indicate when the best time to book is. Download Expedia's free app to activate this handy tool in a few easy taps.

 

You could also save big by booking one of Expedia's vacation packages. Bundling together your Idaho Falls to Butte airfare with your accommodations and car rental is often cheaper than booking everything separately. There’s also One Key, Expedia's generous rewards program. Join for free and you could earn One Key cash on most bookings to save on future adventures.

 

*Terms apply.

 

Disclaimer: ARC The statistics are based on average round-trip ticket prices between January and August 2023. The percentages you see are averages.

 

Frequently asked questions

How much does a flight from Idaho Falls Regional Airport (IDA) to Bert Mooney Airport (BTM) cost?
Grab a cheap one-way flight from $235 or cheap return flight from Idaho Falls Regional Airport (IDA) to Bert Mooney Airport (BTM) with Expedia. Enter your travel dates and sort by "Price (lowest to highest)" to see our cheapest flight deals on this route.
What is the cheapest month to fly from Idaho Falls Regional Airport (IDA) to Bert Mooney Airport (BTM)?
is the least expensive month to fly from IDA to BTM. Traveling during quieter months is often the key to scoring lower fares.
What is the cheapest airline that flies from Idaho Falls Regional Airport (IDA) to Bert Mooney Airport (BTM)?
To find the cheapest airline flying from IDA to BTM, use Expedia's filter tool. Customize your search based on your travel needs, such as preferred carriers and number of stops. You can then sort your results by "Price (lowest to highest)" to see the cheapest flights first.
How many flights per day from Idaho Falls Regional Airport (IDA) to Bert Mooney Airport (BTM)?
Nonstop flights from Idaho Falls Regional Airport (IDA) to Bert Mooney Airport (BTM) aren't available daily, so you'll have to take a flight with a layover. Explore your options with Expedia's filters. Enter your travel details and select either "1 Stop" or "2+ Stops."
What day of the week has the most flights from IDA to BTM?
Friday is typically the busiest day for flights, while Tuesday is often the quietest.* Keep in mind that flight schedules can change based on a range of factors, including the carrier and season.*Busiest/quietest day to travel is based on Expedia flight demand through January to December 2024.
What is the best time to fly from Idaho Falls Regional Airport (IDA) to Bert Mooney Airport (BTM)?
To touch down at Bert Mooney Airport (BTM) on time, book a flight that leaves Idaho Falls Regional Airport (IDA) before 3 PM. The chance of cancellations is 22% higher, on average, for departures after this hour.**Most reliable time of the day and month to travel recommendation is based on January through August 2024 flight status data sourced from OAG's global flight data platform.
Is it cheaper to buy a plane ticket from Idaho Falls Regional Airport (IDA) to Bert Mooney Airport (BTM) last-minute?
Holding off until just before your trip to book a ticket from IDA to BTM generally means paying more. Although you may find some last-minute deals, they aren't always guaranteed. Be flexible with your itinerary to boost your chances of scoring a bargain.
Is it cheaper to book an IDA to BTM flight and hotel package?
Booking an IDA to BTM flight and hotel package tends to be cheaper than booking separately. With Expedia, you can enjoy the ease of organizing your trip all in one place. Select from our extensive range of hotels and then add car rentals, activities and flights to your booking. Bundle it all together, and you could save hundreds of dollars.
Can I cancel or change the date of my flight from Idaho Falls Regional Airport (IDA) to Bert Mooney Airport (BTM)?
In most cases, you can modify or cancel your IDA to BTM flight. However, additional fees may apply, especially if your booking was made over 24 hours ago. Double-check your itinerary for the airline's policies and fees on flight changes, or if you'd like further details, visit our Customer Service portal.

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*Available to One Key members.