$109 Find Cheap Flights from Chicago O'Hare Airport to Montana - Compare and Save

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from O'Hare Intl to Montana departing on 8/11. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.
1 adult
1 adult, Economy, 0 bags

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These are the airlines KAYAK users have selected most often from within our search results in flight searches from Chicago to Montana, as well as popular online travel agencies
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Chicago to Montana, as well as popular online travel agencies
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Cheap Flights from O'Hare Intl to Montana

Cheapest round-trip prices found by our users on KAYAK in the last 72 hours
Bozeman
Bozemannonstop$295
Kalispell
Kalispellnonstop$309
Missoula
Missoulanonstop$309
Billings
Billings1 stop$271
Great Falls
Great Falls1 stop$318
Butte
Butte1 stop$414
Bozeman
Bozemannonstop$295
Kalispell
Kalispellnonstop$309
Missoula
Missoulanonstop$309
Billings
Billings1 stop$271
Great Falls
Great Falls1 stop$318
Butte
Butte1 stop$414

Book Cheap O'Hare Intl to Montana Plane Tickets

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from O'Hare Intl to Montana that are departing in the next months. While these flights were available on KAYAK in the last 72 hours, prices and availability are subject to change and deals may expire.
Discover the best prices for you by selecting your travel dates on KAYAK.

Recent round-trip flight deals from O'Hare Intl to Montana

Wed, Aug 19 - Sat, Aug 22
Delta Logo
6:45 pm - 11:30 pm
ORD
-
BIL
5h 45m
1 stop
Delta Logo
5:20 am - 11:59 am
BIL
-
ORD
5h 39m
1 stop
$271Delta
Tue, Sep 15 - Tue, Sep 22
Delta Logo
2:00 pm - 11:11 pm
ORD
-
BIL
10h 11m
2 stops
Delta Logo
12:57 pm - 9:47 pm
BIL
-
ORD
7h 50m
1 stop
$276Delta
Wed, Aug 19 - Sat, Aug 22
United Airlines Logo
5:00 am - 9:41 am
ORD
-
BIL
5h 41m
1 stop
United Airlines Logo
2:29 pm - 9:52 pm
BIL
-
ORD
6h 23m
1 stop
$293United Airlines
Tue, Aug 4 - Sat, Aug 15
American Airlines Logo
10:09 am - 12:34 pm
ORD
-
BZN
3h 25mnonstop
American Airlines Logo
6:26 am - 3:55 pm
BZN
-
ORD
8h 29m
1 stop
$295American Airlines
Thu, Aug 13 - Sat, Aug 22
Delta Logo
7:00 am - 2:34 pm
ORD
-
BZN
8h 34m
1 stop
Delta Logo
6:00 am - 11:59 am
BZN
-
ORD
4h 59m
1 stop
$297Delta
Tue, Aug 18 - Tue, Aug 25
United Airlines Logo
5:00 am - 9:30 am
ORD
-
COD
5h 30m
1 stop
United Airlines Logo
5:53 pm - 11:59 pm
COD
-
ORD
5h 06m
1 stop
$298United Airlines
Mon, Sep 28 - Sat, Oct 3
American Airlines Logo
3:00 pm - 8:43 pm
ORD
-
BZN
6h 43m
1 stop
American Airlines Logo
6:30 am - 2:07 pm
BZN
-
ORD
6h 37m
1 stop
$304American Airlines
Sat, Jul 4 - Mon, Jul 13
Sun Country Air Logo
6:05 pm - 9:18 am
ORD
-
FCA
16h 13m
1 stop
Sun Country Air Logo
10:17 am - 5:29 pm
FCA
-
ORD
6h 12m
1 stop
$355Sun Country Air
Sun, Sep 6 - Sun, Sep 13
Alaska Airlines Logo
9:00 am - 4:45 pm
ORD
-
GTF
8h 45m
1 stop
Alaska Airlines Logo
5:19 pm - 6:20 am
GTF
-
ORD
12h 01m
1 stop
$363Alaska Airlines
Sun, Sep 6 - Sun, Sep 13
Alaska Airlines Logo
9:00 am - 4:45 pm
ORD
-
GTF
8h 45m
1 stop
Alaska Airlines Logo
5:19 pm - 8:15 pm
GTF
-
ORD
25h 56m
2 stops
$379Alaska Airlines
Booking Insights

KAYAK's insights & trends for O'Hare Intl to Montana flights

Get data-powered insights and trends into flights from O'Hare Intl to Montana to help you find the cheapest flights, the best time to fly and much more.

How much is a round-trip flight from Chicago O'Hare Intl Airport to Montana?

This analysis is based on the cheapest round-trip price found on KAYAK in the last 12 months by searching for a flight from Chicago O'Hare Intl Airport to Montana departing in August.

What is the cheapest Chicago O'Hare Intl Airport to Montana flight route?

Data is based on round-trip flight searches on KAYAK over the past month.

The cheapest ticket to Montana from Chicago O'Hare Intl Airport found in the last 5 days was to Bozeman, at $285 round-trip. The most popular route is from Chicago O'Hare Intl Airport (ORD) to Bozeman (BZN), and the cheapest round-trip airline ticket found on this route in the last 5 days was $285.

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

The average price for all round-trip flights from Chicago O'Hare Intl Airport to Montana depending on the time of departure, clicked by users on KAYAK in the last 2 weeks.

The cheapest time of day to fly to Montana is generally in the afternoon, when round-trip flights cost $335 on average. Morning departures are around 8% cheaper than evening flights, on average. The most expensive time of day to fly to Montana is generally in the evening, which is peak travel time and where the average cost of a ticket is $396.

Can I save money by flying with a layover from Chicago O'Hare Intl Airport to Montana?

The average round-trip price for all non-stop flights, flights with one layover, and flights with two layovers for the route found by users searching on KAYAK in the last 2 weeks.

Yes, flying with a layover may cost you more time, but you can also save money on the route, with a 1 stop layover the cheapest option at $481 on average.

What is the cheapest month to fly from Chicago O'Hare Intl Airport to Montana?

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for round-trip flights from Chicago O'Hare Intl Airport to Montana, removes the top 0.1% to account for outliers, and then takes the median of all values for each month.

The cheapest month for flights from Chicago O'Hare Intl Airport to Montana is October, when tickets cost $133 (return) on average. On the other hand, the most expensive months are December and November, when the average cost of round-trip tickets is $269 and $249 respectively.

What’s the cheapest day of the week to fly from Chicago O'Hare Airport to Montana?

The average price of all round-trip flights from Chicago O'Hare Intl Airport to Montana clicked on KAYAK for each day over the last 12 months.

When flying from Chicago O'Hare Airport to Montana, you should consider leaving on a Tuesday and avoid Thursdays if you are looking for the best rates. For your return to Chicago O'Hare Airport, you’ll find the best rates on Thursdays and the most expensive ones on Sundays.

How far in advance should I book a flight from Chicago O'Hare Intl Airport to Montana?

To calculate weekly average prices, KAYAK takes all prices for each week before departure over the last year for round-trip flights from Chicago O'Hare Intl Airport to Montana, removes the top 0.1% to account for outliers, and then takes the average of all the values for each week.

To get a below average price on the flight from Chicago O'Hare Intl Airport to Montana, you should book around 3 weeks before departure, which saves you about 22% compared to booking last minute. For the absolute cheapest price, our data suggests you should book 20 weeks before departure.

Good to know

Low seasonNovember
Cheapest flight$109
Best time to beat the crowds but there is an average 24% increase in price.
Most popular time to fly with an average 10% increase in price.
Flight from Chicago O'Hare Airport to Bozeman

FAQs - booking Montana flights

  • How does KAYAK find such low prices on flights from Chicago O'Hare Airport 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 Chicago O'Hare Airport to Montana.

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

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight from Chicago O'Hare Airport 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 Chicago O'Hare Airport 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 Chicago O'Hare Airport 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 Chicago O'Hare Airport 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 Chicago O'Hare Airport to Montana up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

Reviews of the top 4 airlines serving from O'Hare Intl to Montana

 
See real verified KAYAK customer reviews for airlines flying from Chicago to Montana. Airline scores are aggregated from all reviews left by passengers on KAYAK after flying with an airline. KAYAK doesn’t show reviews that are older than 5 years. Learn how KAYAK collects reviews.
Need help choosing which airline to fly with from O'Hare Intl 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.
7.9
Alaska AirlinesOverall score based on 12517 reviews
8.5Crew
8.1Boarding
7.8Comfort
7.1Food
7.0Entertainment
Airline reviews

Didn’t even get on, check my flight to Seattle for details. Do better Alaska.

2.0 MediocreAnonymous, Jun 2026
SEA - MSO
Read more Alaska Airlines reviews

Didn’t even get on, check my flight to Seattle for details. Do better Alaska.

Extremely professional crew there are very friendly and first class. Everything worked well on the plane. Food was to be expected. Drinks were very good. Shout out to Charlie in first class who was an excellent flight attendant.

Thanks for all you do to keep us safe and on time!

WOuld have liked coffee or pretzels but other than that, crew and pilot and flight were great. Seat was great, too.

The flight 2161 was cancelled after repeated delays; for some reason the crew and not the tower located in Billings, Montana made the call. A cancelled flight is not a big deal, it happens. It was very disappointing that upon cancelling the flight it was a free for all to get to the counter for rebooking. Priority seating and first class ticket holders should have been giving priority to get on the next available flight. Most would agree that the process of moving states away, w/a cat, is stressful. A cancelled flight, 90 minutes to rebook, no place to stay, medication that was to be refrigerated and trying to find a local pet friendly hotel significantly added to the stress. Had I been able to rebook (per priority boarding SOP) I could have called the place I had just checked out of as my room most likely was just as I'd left it, including with pet supplies (which also had to be repurchased). While waiting to rebook, many of us called Alaska Airlines 800 number hoping to get a new flight; the waiting time -- this is not a joke -- was eight (8) hours, which dropped to "just" two (2) hours about 45-minutes later. Due to the cancellation I had to spend $268.75 and I still have not been refunded for the change in ticket (first class to regular). Each time I've call, five times now, the wait time was absurd, or a message of call back is given. Hopefully visiting the airport and talking with an agent face to face will be the final chapter to this experience. Alaska has been my go to air travel for years, hopefully this trip was just a hiccup. A system that forces customer's to spend hours of their time (money) to get a just due refund is not a working system. I suggest Alaska Airlines hire more representatives to handle calls; time is more valuable than money, spending 90 minutes to rebook a flight, without the difference being automatic is absurd. There are things called computers, they do amazing things. Once the flight was cancelled, only three agents were working to rebook the PAX, This too was unacceptable. First class ticket holders pay for first-class service, this should include rebooking on flights that are cancelled. I recall a time when flights were cancelled the airline would offer a hotel should the next flight not be until the following day? I had no idea that was no longer SOP; many could return home, several of us could not. The agents were pleasant once the PAX had their turn to rebook, this was true down in baggage area as well. The flight out the next day was also what I'd come to find of Alaska Airlines.

The crew inside the airport for Alaska was rude, lazy and incompetent

I like flying Alaska Airlines. I think the staff are happy, the plane is comfortable, the entertainment reasonable, the food acceptable.

No WiFi. Terrible food. Very long walk to the gate and from the gate after landing. Gate changed without notice.

I really hate the seat assignment at the gate. I understand it is so families can sit together but it caused me and others a lot of unnecessary stress and confusion, enough for me to not fly Alaska again. The app is so awful that it did not even update my seat assignment on the boarding pass but sent me a notification of my seat... it showed in Apple Wallet but not in the Alaska app itself. That only made the stress worse. I think most people like myself prefer to know where they are seated at check in 24 hours before so they don't have to anxiously hang out at the gate the entire time. This is not a good use of your agents time either to be dealing with all of us asking where we are sitting. You should automatically assign the multiple seat purchases to be together before they check in and fill us solo travelers in those gaps as we check in.

Great. Went right to the desk and the people were helpful and kind. I was able to get my boarding pass in under 5minutes. They made sure I received the text.

I have Precheck. Flew HPN to DEN and return this past weekend. Delta didn't attach my Precheck number to this trip. So it was waiting in general line especially in Denver. Unavailable.

Original flight was delayed, then cancelled and the gate staff did not expedite rebooking. Also, no instructions were given that a ticket number was needed before being called to facilitate rebooking. This could have been much more organized.

Be on time? When not on time a circling for over an hour offer more than 1 bag of chips to the passengers? It was a 7 hour flight by the time we got done.

Five hour delays every hour, I wish it were all at once

Flight delayed four separate times. I’m now one hour hours late to landing.

worst flight ever from Delta, it got delayed and kept on delaying..

Should never have had to go to Detroit from Orlando back to Tennessee!

Got rerouted from a straight flight from Orlando to Atlanta to Knoxville to a flight from Orlando to Detroit to Knoxville! Seriously!! Flight delay out of Detroit! Long day for what should have been a pretty easy travel day!

Two delays on two separate planes with parts they could not easily find and replace.

Checkin was good, fllight ws good. Onlly complaint is lack of foot on 6 hour flight from Seattle to Boston. Snacks were flimsy - chips and cookies. could have offered something more substantial for such a long flight. I know you can buy food in airport but for the price you pay for a ticket, they should step up for the passengers.

Horrible! Several delays and then was cancelled! I spent over 24 hours in the airport and was unable to get a hotel or food voucher.

Boarded early; and arrived home 40 mins early. After a long flight, it’s nice to be back home early. These flights have no amenities; no snacks. So need to bring your own

A long delay. Don't travel late in the day.

Super friendly with lots of drink options an entertainment. Friendly crew.

The crew was great. Very friendly and responsive. The plane was old, small and tight. We ran out of overhead space and I had to check. Middle seat was particularly tight.

Several missed and almost missed connections. It felt like everything was being patched together last minute without enough resources and it ended up being an extremely stressful experience that basically ruined our weekend on the west coast. What a waste.

Crew was friendly. Seats are too narrow, particularly when a big person is in the adjacent seat, but I understand this is due to smaller planes usually flight into Lincoln. I have experienced several flight delays going out and coming into Lincoln airport, I say maybe 50% or higher of the flights I've taken out of this airport have been delayed.

Great flight. Boarded efficiently. Arrived early at CLT. There was no in flight entertainment on this aircraft. Great crew.

The seat was comfortable. There was a lot of turbulence. If it weren't for that,it would have been okay.

Poor communication, flight was delayed for preventable reasons. I missed my connection.

I’ve got 31F seat and window seat . My 2 co passengers was AA crew members and they were very rude attitude and when I was going to use bathroom their gestures was very different and awkward and the guy beside me completely occupied the hand rest and I was really uncomfortable

It was so much better than expected, Ohare is not such a pleasant experience but American Airlines with the new, clean aeroplane and free Wi-Fi was outstanding and the crew so pleasant and helpful.

It wa sort of on time; the cab was left with some trash

American Airlines II: Delay Boogaloo. Multiple gate changes, delays, boarded and then MORE delays. I hate to say this won’t matter, but posting stuff about major corporations in 2026 is a post-modern “scream into the void.” Was multiple hours late coming home, so there you go.

The airplane was an old model, the overhead didn’t have enough room for people’s items and made boarding and boarding disappointing and stressful. Crew allowed passengers to bring more than the permitted baggage sizes.

Original flight was on time, then late, then changed gates...4 times. Once our newest plane came in, it was fine.

I almost missed my flight and they helped me out enormously

Delays experienced in boarding/take off due to incoming plane delayed. However, the boarding time/depart time in the app was significantly delayed in providing these updates. Usually not updated until an hour after we should have already boarded. Poorly managed.

Moved to earlier flight which unexpectedly had maintenance issues initially indicated as quick fix to ultimately plane changes. Moved back to original flight, also delayed. In all cases customer updates and communication very unclear, no updates on drivers for delays.

Typical AA - late by 90+ mn. Gate changed twice... Changed the departure time 6 times No explanation, no communication on reasons for delay I travel with AA twice a year... and it is consistently very poor.. I will continue to use AA only when i have to.

Everything you need to know for your flight from O'Hare Intl to Montana

Information on your arrival and departure airports