$149 Cheap Flights from Idaho Falls (IDA) to Missoula (MSO)

View $149 flight on Wed, Jan 14, 2026Opens in a new window

Popular airlines from Idaho Falls Regional Airport (IDA) to Missoula Intl. Airport (MSO)

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Cheap Flights from Idaho Falls to Missoula (IDA-MSO)

Prices were available within the past 7 days and start at $149 for one-way flights and $262 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Hawaiian Airlines
Tue, Nov 18 - Sat, Dec 6
IDA
Idaho Falls
MSO
Missoula
$262 Roundtrip, found 6 days ago
$262
Roundtrip
found 6 days ago
Select Hawaiian Airlines flight, departing Tue, Nov 18 from Idaho Falls to Missoula, returning Sat, Dec 6, priced at $262 found 6 days ago
Hawaiian Airlines
Wed, Dec 10 - Wed, Dec 24
IDA
Idaho Falls
MSO
Missoula
$280 Roundtrip, found 6 days ago
$280
Roundtrip
found 6 days ago
Select Hawaiian Airlines flight, departing Wed, Dec 10 from Idaho Falls to Missoula, returning Wed, Dec 24, priced at $280 found 6 days ago
Alaska Airlines
Fri, Dec 5 - Tue, Dec 9
IDA
Idaho Falls
MSO
Missoula
$282 Roundtrip, found 6 days ago
$282
Roundtrip
found 6 days ago
Select Alaska Airlines flight, departing Fri, Dec 5 from Idaho Falls to Missoula, returning Tue, Dec 9, priced at $282 found 6 days ago
Alaska Airlines
Fri, Dec 5 - Tue, Dec 9
IDA
Idaho Falls
MSO
Missoula
$292 Roundtrip, found 6 days ago
$292
Roundtrip
found 6 days ago
Select Alaska Airlines flight, departing Fri, Dec 5 from Idaho Falls to Missoula, returning Tue, Dec 9, priced at $292 found 6 days ago
Delta
Tue, Nov 18 - Wed, Nov 19
IDA
Idaho Falls
MSO
Missoula
$299 Roundtrip, found 6 days ago
$299
Roundtrip
found 6 days ago
Select Delta flight, departing Tue, Nov 18 from Idaho Falls to Missoula, returning Wed, Nov 19, priced at $299 found 6 days ago
Hawaiian Airlines
Wed, Dec 10 - Thu, Dec 25
IDA
Idaho Falls
MSO
Missoula
$300 Roundtrip, found 6 days ago
$300
Roundtrip
found 6 days ago
Select Hawaiian Airlines flight, departing Wed, Dec 10 from Idaho Falls to Missoula, returning Thu, Dec 25, priced at $300 found 6 days ago
Hawaiian Airlines
Thu, Jan 1 - Sun, Jan 11
IDA
Idaho Falls
MSO
Missoula
$302 Roundtrip, found 6 days ago
$302
Roundtrip
found 6 days ago
Select Hawaiian Airlines flight, departing Thu, Jan 1 from Idaho Falls to Missoula, returning Sun, Jan 11, priced at $302 found 6 days ago
Alaska Airlines
Fri, Dec 5 - Tue, Dec 9
IDA
Idaho Falls
MSO
Missoula
$312 Roundtrip, found 6 days ago
$312
Roundtrip
found 6 days ago
Select Alaska Airlines flight, departing Fri, Dec 5 from Idaho Falls to Missoula, returning Tue, Dec 9, priced at $312 found 6 days ago
American Airlines
Tue, Sep 1 - Mon, Sep 7
IDA
Idaho Falls
MSO
Missoula
$816 Roundtrip, found 11 hours ago
$816
Roundtrip
found 11 hours ago
Select American Airlines flight, departing Tue, Sep 1 from Idaho Falls to Missoula, returning Mon, Sep 7, priced at $816 found 11 hours ago
United
Wed, May 13 - Thu, May 14
IDA
Idaho Falls
MSO
Missoula
$863 Roundtrip, found 11 hours ago
$863
Roundtrip
found 11 hours ago
Select United flight, departing Wed, May 13 from Idaho Falls to Missoula, returning Thu, May 14, priced at $863 found 11 hours ago

Alternative airports near Missoula

Prices were available within the past 7 days. Prices and availability are subject to change.

Select flight to Missoula Intl. MSO. Cheapest and Closest option available. Average driving time to city center is 8 minutes. Flights from $358
MSO
Missoula Intl.
CheapestClosest
Average driving time to city center8 min
Flights from $358

Frequently asked questions

How much does a flight from Idaho Falls Regional Airport (IDA) to Missoula Intl. Airport (MSO) cost?
Grab a cheap one-way flight from $149 or cheap return flight from $262 from Idaho Falls Regional Airport (IDA) to Missoula Intl. Airport (MSO) with Expedia. Enter your travel dates and sort by "Price (lowest to highest)" to see our cheapest flight offers on this route.
What is the cheapest month to fly from Idaho Falls Regional Airport (IDA) to Missoula Intl. Airport (MSO)?
Traveling in November is a good way to save, as it's the cheapest month for flights between IDA and MSO. You'll usually find the lowest prices during the off-season.
What is the cheapest airline that flies from Idaho Falls Regional Airport (IDA) to Missoula Intl. Airport (MSO)?
Expedia's filter tool lets you easily compare different airlines, travel time and fares all in one place. Choose your preferences, then sort by "Price (lowest to highest)" to see which carrier offers the cheapest IDA to MSO flight.
How many flights per day from Idaho Falls Regional Airport (IDA) to Missoula Intl. Airport (MSO)?
You'll need to catch a flight with a layover when traveling from Idaho Falls Regional Airport (IDA) to Missoula Intl. Airport (MSO). There are no daily direct flights on this route. However, simply filter your search to include one or more stops to find the best option for your trip.
What day of the week has the most flights from IDA to MSO?
You'll typically find Tuesday the quietest day for flights, while Fridays tend to be the busiest.* However this can vary from season to season and during peak travel times or public holidays.*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 Missoula Intl. Airport (MSO)?
Opt for a flight from Idaho Falls Regional Airport (IDA) to Missoula Intl. Airport (MSO) that takes off before 3 PM to reduce the likelihood of delays and cancellations. Departures after this time are on average 22% more likely to be canceled.**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 Missoula Intl. Airport (MSO) last-minute?
Last-minute bookings from IDA to MSO are usually more expensive. For the cheapest rates, start searching for flights well in advance. That being said, if you're flexible with your travel dates, you may score a cheap fare right before your trip.
Is it cheaper to book an IDA to MSO flight and hotel package?
Opting for an IDA to MSO flight and hotel package is usually cheaper than booking separately. With Expedia, you can enjoy the convenience of organizing your travels in one place. Choose from our impressive range of stays and then add car rentals, activities and flights to your booking. Bundle everything 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 Missoula Intl. Airport (MSO)?
You can usually reschedule or cancel your IDA to MSO flight. However, for bookings made more than 24 hours ago, additional fees may apply. Refer to your airline's policies in your itinerary to see what changes are allowed and whether any costs are involved. You'll also find more information on our Customer Service portal.

Travel information

Origin airport
Idaho Falls Regional
Destination airport
Missoula Intl.
Roundtrip price
$262
Distance
254 mi

Book with confidence

Idaho Falls to Missoula Flights

The cheapest times to fly from Idaho Falls to Missoula

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

 

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

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

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 Missoula in 2025. You can also book with separate airlines for your outbound and return journeys, from $149 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 Missoula 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 Missoula 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.

 

Idaho Falls to Missoula Flights

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