$131 Find Cheap Flights from Idaho to Montana

1 adult

KAYAK searches hundreds of travel sites at once for deals on flights to Montana

Travelers love KAYAK
41,299,237 searches in the past 7 days on KAYAK

Save 22% or moreCompare multiple travel sites with one search.

Track pricesNot ready to book? Create a price alert for when prices drop.

Bundle and saveSave money when you bundle your flight + hotel.

Filter your dealsChoose cabin class, free Wi-Fi and more.

Useful Info
Useful Info

Good to know

Low seasonNovember
High seasonJuly
Cheapest flight$131
Best time to beat the crowds but there is an average 8% increase in price.
Most popular time to fly with an average 3% increase in price.
Flight from Boise to Kalispell

FAQs for booking flights from Idaho to Montana

  • How does KAYAK find such low prices on flights from Idaho to Montana?

    KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from Idaho to Montana.

  • How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from Idaho to Montana?

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight from Idaho to Montana is likely to change within 7 days, so travelers know whether to wait or book now.

  • What is the Hacker Fare option on flights from Idaho to Montana?

    Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional round-trip ticket. You could then fly from Idaho to Montana with an airline and back with another airline.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from Idaho to Montana?

    Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying from Idaho to Montana up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

  • Which is the cheapest airport to fly into in Montana?

    Prices will differ depending on the departure airport, but generally, the cheapest airport to fly to in Montana is Bozeman Gallatin Field Airport (BZN), with an average flight price of $279.

  • What is the cheapest day to fly to Montana?

    Based on KAYAK data, the cheapest day to fly to Montana is Monday where round-trip tickets can be as cheap as $147. On the other hand, the most expensive day to fly is Wednesday, where round-trip prices are $412 on average.

  • What is the cheapest time of day to fly to Montana?

    The cheapest time of day to fly to Montana is generally in the afternoon, when round-trip flights cost $193 on average. Morning departures are around 16% more expensive than evening flights, on average. The most expensive time of day to fly to Montana is generally in the morning, which is peak travel time and where the average cost of a ticket is $437.

  • What is the cheapest flight to Montana?

    The cheapest ticket to Montana from Idaho found in the last 72 hours was to Bozeman, at $107 round-trip. The most popular route is Boise (BOI) to Bozeman (BZN) and the cheapest round-trip airline ticket found on this route in the last 72 hours was $107.

  • What is the cheapest month to fly from Idaho to Montana?

    The cheapest month for flights from Idaho to Montana is March, when tickets cost $147 (return) on average. On the other hand, the most expensive months are July and August, when the average cost of round-trip tickets is $517 and $437 respectively.

  • How long is the flight to Montana?

    An average nonstop flight from Idaho to Montana takes 7h 09m, covering a distance of 325 miles. The shortest route is Boise (BOI) to Bozeman (BZN) with an average flight time of 1h 08m.

  • What are the most popular destinations in Montana?

    Based on KAYAK flight searches, the most popular destination is Billings (35% of total searches to Montana). The next most popular destinations are Kalispell (20%) and Bozeman (19%). Searches for flights to Missoula (13%), to Glendive (6%) and to Helena (3%) are also popular.

Top 3 airlines serving from Idaho to Montana

Need help choosing which airline to fly with from Idaho to Montana? KAYAK airline reviews give an overall score for each airline based on loads of factors, including comfort, boarding, in-flight entertainment and more, to make your decision easier. See airline scores according to verified KAYAK customer reviews.
8.0
Alaska AirlinesOverall score based on 9968 reviews
7.1Entertainment
7.1Food
8.5Crew
7.9Comfort
8.2Boarding
Airline reviews

It was all great all around. Will travel with Alaska next trip.

10.0 ExcellentLoyola, Apr 2025BOS - SEA
Read more Alaska Airlines reviews

It was all great all around. Will travel with Alaska next trip.

I got the last seat on the plane, in the back in the corner against the window, and I paid a competitive price for my ticket several weeks before the flight.

Everything was good. However, the selections of movies and TV shows were boring and unexciting. It was disappointing.

Long delay before boarding. By the time I was informed of the delay I was already at the gate.

There was no seating at the gate, no where to charge your devices, super crowded. Boarding in group F meant all luggage space was taken when it was time for me to board. The boarding crew was short with everyone and seemed irritated. The luggage space was insufficient, the seat was too small for me (6'4") and very uncomfortable trip. I was in a middle seat between a person snoring the whole trip and a person with very strong body odor. The flight crew was terse and unfriendly, seemed irritated and impatient. Yelled a lot at people with earbuds in, understandable. Finally, we arrived 10 minutes early, only to sit on the tarmac for 20 minutes and wait for a gate. Worst flight experience I've had in years.

I made a mistake. Read what I wrote in the flight from Dulles to SEA. The negative experience was from SEA to BOI. Total garbage. Wont do it again.

Flight 351 SEA to BOI was terrible. We got to cruising altitude and I needed to use the restroom but the fasten seatbelt sign never came off. There was no turbulence and I'd felt the plane level off so I stood up to use the restroom about 15 minutes after we leveled off. The stewardess went over the intercom and said I needed to be seated because the captain hadn't turned off the fasten seatbelt sign....Which... Fair.... But not five minutes later she went and used the bathroom. Felt very unprofessional to leave a paying customer with a burning urethra for the entire flight and bark at them to sit down and still use the bathroom yourself. They never did turn off the seatbelt sign.

For longer trips, snacks are puny, boring and don’t have ANY nutritional value.

One of the worst check-in experiences ever. Apparently, we were overweight and had to completely repack. They tried to charge us an extra $35 per bag on top of the standard checked baggage fee we had already paid in advance. Surprisingly, we managed to fit everything into our carry-ons and stayed under their precious 50-pound limit. (By the way, 23 kg is actually 50.7 lbs, so we couldn’t even go slightly over 50 according to the very unfriendly agent.)

OUr pilot was very good and also a good landing in a very gusting Phoenix. Most important.

It is southwest seat was ok. Not the most comfortable seat

I’ve always loved Southwest. No issues at all. I was flying standby and the gate agent was extremely friendly and helpful. Boarding was smooth and I was able to get a window seat in the emergency exit row. Crew was fantastic! They were very professional and accommodating. We had to divert from our destination due to weather but the flight crew kept everyone at ease and informed us of all pertinent information. Excellent flight

The price of the tickets isn't matching the flight experience. No matter how long the flight is, you're only getting pretzels. The flight attendants looked unkept and over it.

Plz don't take away free bags and free seating

The seats were a bit cramped and worn, but otherwise okay.

I would have liked to arrive on time - not 5 hours late!

After a 3 hour layover in Denver my flight was delayed over 5 hours! No explanation; no assistance; no offer to provide compensation; no one at Southwest was willing to offer any assistance. 8 hours in the Denver airport - ridiculous!

It was a perfect flight in all aspects! Both legs!

Only one drink pass through the cabin for a 4 hour flight. Quite rough and bumpy landing.

Boarding process, crew were good. But the seats were so uncomfortable that was all I could focus on. I literally had to sit forward so that all 3 of us could fit in row. I will try to avoid Southwest in the future for any flights over 60 minutes.

Delta is my preferred airline. I've traveled with them for years. On time in most cases, good communication, easy to use app. Most planes are pretty nice. I was on a CRJ 700/900 however, which was pretty badly aged inside and needed a refresh. No infotainment, unreliable wifi, best to download before boarding or bring a book. Food choices are really just snacks on this flight, nice variety but about what you'd expect. Great staff and prompt in departure and early arrival too. Overall quite satisfied.

Crew was friendly Love the entertainment in the seat head rest.

Delta flight was on time, seats were comfortable, and crew was nice.

This had nothing to do with Delta… The flights were on time and flawless. The service was excellent. We purchased seats in (aisle/middle) comfort plus since this was a cross country flight. Unfortunately, the woman seated at the window was 300+ pounds and, as might be expected, covered up about a third of the middle seat also. there was absolutely nothing that Delta could have done about that… I just don’t know what the answer should be. If you purchase a seat, you should should be able to use the entire seat and not just the portion that someone else is not sitting/oozing in. Disappointing…there should be something that could be done….I'm just not sure what solution could be.

Delayed take-off. Very small plane so very scary with lots of bumps during the flight. Would never fly Delta on short flights in small 80 seaters plane again! Felt relieved when landed.

The worst part was I was NOT allowed in the lounge even though I was holding a first class ticket and have a premium American Express card. I have flown Business or First Class with many airlines. Delta is the ONLY one who does not extend this courtesy to anyone except people who hold the very expensive American Express card. As a result, I won’t fly Delta if I have any other choice.

A little bumpy ride . No food was being provided due the the turbulence. That was ok it was a short flight to my standards.

Simply outstanding. Their new lounge for Delta One customers is a cut above the rest.

The Dekta Rep that checked us in was great. She's very personable, pleasant, and can tell she enjoys her job.

The plane was old with small storage areas that had problems closing/latching and not enough storage for everyone, and worn, damaged seats. Service was great but feel a little unsafe on such well used planes.

Book cheap flights from Idaho to Montana

Recent round-trip flight deals

10/10Fri
nonstopAlaska Airlines
1h 08mBOI-BZN
10/14Tue
nonstopAlaska Airlines
1h 11mBZN-BOI
$193
6/5Thu
1 stopDelta
6h 24mBOI-BZN
6/6Fri
1 stopDelta
4h 26mBZN-BOI
$197
5/29Thu
1 stopAlaska Airlines
6h 12mBOI-BZN
6/5Thu
1 stopAlaska Airlines
6h 43mBZN-BOI
$212
6/5Thu
2 stopsSouthwest
7h 40mBOI-BZN
6/6Fri
1 stopSouthwest
5h 10mBZN-BOI
$231
5/15Thu
1 stopDelta
4h 24mBOI-BZN
5/23Fri
1 stopDelta
4h 26mBZN-BOI
$252
6/6Fri
1 stopHawaiian Airlines
4h 30mBOI-MSO
6/12Thu
1 stopHawaiian Airlines
6h 33mMSO-BOI
$280
6/5Thu
2 stopsSouthwest
7h 40mBOI-BZN
6/6Fri
2 stopsSouthwest
9h 10mBZN-BOI
$311
8/7Thu
1 stopHawaiian Airlines
5h 07mBOI-MSO
8/11Mon
1 stopHawaiian Airlines
5h 45mMSO-BOI
$320
7/9Wed
1 stopUnited Airlines
5h 05mBOI-BIL
7/13Sun
1 stopUnited Airlines
4h 46mBIL-BOI
$407
5/14Wed
1 stopUnited Airlines
4h 32mBOI-BIL
5/18Sun
1 stopUnited Airlines
4h 59mBIL-BOI
$431

Search by stops

Search by airline

Search by price

Recent one-way flight deals

5/27Tue
1 stopDelta
5h 12mBOI-FCA
$131
6/1Sun
1 stopAlaska Airlines
3h 38mGEG-BZN
$132
5/22Thu
1 stopAlaska Airlines
6h 07mGEG-FCA
$132
6/9Mon
2 stopsDelta
7h 25mGEG-BZN
$138
5/29Thu
1 stopHawaiian Airlines
6h 20mBOI-BIL
$157
7/24Thu
1 stopHawaiian Airlines
5h 07mBOI-MSO
$160
5/9Fri
1 stopSouthwest
9h 30mGEG-BZN
$259
5/13Tue
1 stopUnited Airlines
5h 05mBOI-BTM
$260
5/9Fri
2 stopsSouthwest
10h 15mGEG-BZN
$269
5/13Tue
2 stopsUnited Airlines
8h 55mBOI-BTM
$417

Search by stops

Search by airline

Search by price

Last minute flights from Idaho to Montana

Last minute flight, train and bus deals

5/4Sun
multi-stopSouthwest
7h 20mBOI-BZN
5/11Sun
multi-stopSouthwest
4h 30mBZN-BOI
$558
5/4Sun
multi-stopSouthwest
7h 20mBOI-BZN
5/11Sun
multi-stopSouthwest
9h 10mBZN-BOI
$563
5/5Mon
multi-stopHawaiian Airlines
5h 14mBOI-FCA
5/8Thu
multi-stopHawaiian Airlines
3h 46mFCA-BOI
$656
5/2Fri
multi-stopAlaska Airlines
9h 14mBOI-FCA
5/4Sun
multi-stopAlaska Airlines
3h 52mFCA-BOI
$686
5/3Sat
multi-stopAlaska Airlines
4h 49mGEG-BIL
5/6Tue
multi-stopAlaska Airlines
5h 46mBIL-GEG
$686
5/2Fri
multi-stopHawaiian Airlines
5h 18mBOI-BIL
5/5Mon
multi-stopHawaiian Airlines
6h 02mBIL-BOI
$686
5/3Sat
multi-stopDelta
8h 23mGEG-BIL
5/6Tue
multi-stopDelta
6h 18mBIL-GEG
$692
5/3Sat
multi-stopDelta
11h 46mGEG-BIL
5/6Tue
multi-stopDelta
7h 22mBIL-GEG
$697
5/2Fri
multi-stopUnited Airlines
5h 17mBOI-BIL
5/4Sun
multi-stopUnited Airlines
4h 59mBIL-BOI
$737
5/2Fri
multi-stopUnited Airlines
4h 39mBOI-BIL
5/4Sun
multi-stopUnited Airlines
29h 39mBIL-BOI
$792

Search by stops

Search by airline

Search by price

Everything you need to know for your flight to Montana

Cabin class types available on flights to Idaho

Cabin classes available on flights to Idaho. Prices are the lowest found on KAYAK over the last 7 days. Price and availability is not guaranteed.

Not what you’re looking for? Find thousands of other hotels, flights, car rentals and package deals with KAYAK.