$561 Cheap Flights from Butte (BTM) to Idaho Falls (IDA)

View $561 flight on Sat, Dec 27, 2025Opens in a new window

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

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

Prices were available within the past 7 days and start at $561 for one-way flights and for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Frequently asked questions

How much does a flight from Bert Mooney Airport (BTM) to Idaho Falls Regional Airport (IDA) cost?
Snag a cheap one-way flight from $561 or cheap return flight from Bert Mooney Airport (BTM) to Idaho Falls Regional Airport (IDA) with Expedia. Enter your travel dates and sort by "Price (lowest to highest)" to find our cheapest flight offers on this route.
What is the cheapest month to fly from Bert Mooney Airport (BTM) to Idaho Falls Regional Airport (IDA)?
The cheapest month to fly from BTM to IDA is , when there's less demand. Off-peak season is usually when airlines offer better prices between these airports.
What is the cheapest airline that flies from Bert Mooney Airport (BTM) to Idaho Falls Regional Airport (IDA)?
Expedia's filter tool lets you easily compare different airlines, travel time and fares all in one place. Tailor the search to your trip, then sort by "Price (lowest to highest)" to find out which carrier offers the cheapest BTM to IDA flight.
How many flights per day from Bert Mooney Airport (BTM) to Idaho Falls Regional Airport (IDA)?
Direct flights from Bert Mooney Airport (BTM) to Idaho Falls Regional Airport (IDA) aren't available daily, so you'll have to take a flight with a layover. Explore your options with Expedia's filters. Enter your dates and choose either "1 Stop" or "2+ Stops."
What day of the week has the most flights from BTM to IDA?
Usually you'll find the most flight options available on a Friday. Tuesdays are often the quietest.* However, this can vary depending on the time of year, airline and other factors.*Busiest/quietest day to travel is based on Expedia flight demand through January to December 2024.
What is the best time to fly from Bert Mooney Airport (BTM) to Idaho Falls Regional Airport (IDA)?
To land at Idaho Falls Regional Airport (IDA) on time, choose a flight that leaves Bert Mooney Airport (BTM) before 3 PM. The likelihood 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 Bert Mooney Airport (BTM) to Idaho Falls Regional Airport (IDA) last-minute?
Last-minute fares from BTM to IDA are generally more expensive. To secure the best rates, start searching for flights well ahead of time. That said, if you're flexible with your travel dates, you may find a cheap ticket right before your journey.
Is it cheaper to book a BTM to IDA flight and hotel package?
Compared with arranging flights and hotels separately, booking a BTM to IDA flight and hotel package with Expedia could lead to significant savings. Better still, having it all in one place takes the hassle out of travel planning. Just secure your flights and select from our wide range of stays, then tailor your trip with extras like car rentals and activities.
Can I cancel or change the date of my flight from Bert Mooney Airport (BTM) to Idaho Falls Regional Airport (IDA)?
It's usually possible to cancel or reschedule your BTM to IDA flight. However, if it's been more than 24 hours since booking, additional fees may apply. Refer to your airline's policies in your itinerary to see what changes are possible and if any costs are involved. You'll also find more details on our Customer Service portal.

Travel information

Origin airport
Bert Mooney
Destination airport
Idaho Falls Regional
Distance
169 mi

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Butte to Idaho Falls Flights

The cheapest times to fly from Butte to Idaho Falls

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 Butte to Idaho Falls are during the month of . You can find some of the cheapest flights from Butte to Idaho Falls with Expedia's search tool and vast selection of airlines.

 

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

Sunday is one of the best days to book for cheap flights from Butte to Idaho Falls: 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 Butte to Idaho Falls

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 Butte to Idaho Falls in 2025. You can also book with separate airlines for your outbound and return journeys, from $561 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 Butte to Idaho Falls 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 Butte to Idaho Falls 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.

 

Butte to Idaho Falls Flights

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*Available to One Key members.