$133 Find Cheap Flights from Chicago O'Hare Airport to Montana

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 5/29. 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

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

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

Save 24% 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.

Flight Deals
Booking Insights
Flight Deals

Cheap Flights from O'Hare Intl to Montana

Cheapest round-trip prices found by our users on KAYAK in the last 72 hours
Bozeman
Bozeman1 stop$265
Kalispell
Kalispellnonstop$309
Missoula
Missoulanonstop$309
Billings
Billingsnonstop$251
Great Falls
Great Falls1 stop$318
Butte
Butte1 stop$419
Bozeman
Bozeman1 stop$265
Kalispell
Kalispellnonstop$309
Missoula
Missoulanonstop$309
Billings
Billingsnonstop$251
Great Falls
Great Falls1 stop$318
Butte
Butte1 stop$419

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

Tue, Sep 29 - Tue, Oct 6
American Airlines Logo
9:40 am - 11:45 am
ORD
-
BIL
3h 05mnonstop
American Airlines Logo
2:02 pm - 6:00 pm
BIL
-
ORD
2h 58mnonstop
$251American Airlines
Fri, May 29 - Mon, Jun 1
Alaska Airlines Logo
3:28 pm - 10:42 pm
ORD
-
BZN
8h 14m
1 stop
Alaska Airlines Logo
7:59 pm - 6:20 am
BZN
-
ORD
9h 21m
1 stop
$265Alaska Airlines
Wed, May 27 - Wed, Jun 3
American Airlines Logo
9:45 am - 12:12 pm
ORD
-
BIL
3h 27mnonstop
American Airlines Logo
12:42 pm - 4:44 pm
BIL
-
ORD
3h 02mnonstop
$270American Airlines
Wed, May 27 - Wed, Jun 3
Delta Logo
5:41 pm - 11:14 pm
ORD
-
BIL
6h 33m
1 stop
Delta Logo
6:30 am - 2:57 pm
BIL
-
ORD
7h 27m
1 stop
$271Delta
Sat, Jun 6 - Wed, Jun 17
Delta Logo
5:41 pm - 11:14 pm
ORD
-
BIL
6h 33m
1 stop
Delta Logo
5:18 am - 5:02 pm
BIL
-
ORD
10h 44m
2 stops
$276Delta
Thu, May 28 - Wed, Jun 3
Alaska Airlines Logo
7:40 am - 3:32 pm
ORD
-
BZN
8h 52m
1 stop
Alaska Airlines Logo
8:00 am - 4:48 pm
BZN
-
ORD
7h 48m
1 stop
$280Alaska Airlines
Thu, May 28 - Wed, Jun 3
Alaska Airlines Logo
3:28 pm - 10:42 pm
ORD
-
BZN
8h 14m
1 stop
Alaska Airlines Logo
1:57 pm - 11:59 pm
BZN
-
ORD
9h 02m
1 stop
$281Alaska Airlines
Sat, Jun 6 - Wed, Jun 17
Delta Logo
1:44 pm - 11:14 pm
ORD
-
BIL
10h 30m
2 stops
Delta Logo
5:18 am - 5:02 pm
BIL
-
ORD
10h 44m
2 stops
$281Delta
Sat, Jun 6 - Wed, Jun 17
United Airlines Logo
7:52 pm - 10:15 pm
ORD
-
BIL
3h 23mnonstop
United Airlines Logo
6:00 pm - 12:44 am
BIL
-
ORD
5h 44m
1 stop
$291United Airlines
Thu, Aug 27 - Sun, Aug 30
United Airlines Logo
5:00 am - 9:41 am
ORD
-
BIL
5h 41m
1 stop
United Airlines Logo
11:43 am - 3:48 pm
BIL
-
ORD
3h 05mnonstop
$299United 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 May.

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 72 hours was to Billings, at $251 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 72 hours 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 $310 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 $391.

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.

No, with an average price for the route of $436, prices are generally cheapest when you fly direct.

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 24% compared to booking last minute. For the absolute cheapest price, our data suggests you should book 8 weeks before departure.

Good to know

Low seasonNovember
Cheapest flight$133
Best time to beat the crowds but there is an average 25% increase in price.
Most popular time to fly with an average 1% 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 12313 reviews
8.1Boarding
7.0Entertainment
7.8Comfort
7.1Food
8.5Crew
Airline reviews

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

8.0 ExcellentGlenn, Apr 2026
ORD - SEA
Read more Alaska Airlines reviews

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.

The flight was delayed so we didn’t get into San Diego until almost 1 AM. Otherwise, it was lovely.

Larger seats with a bit more room would be good! Thanks for all your hard work. I think we are all feeling a bit down these days economically and your positive attitudes, both from SJC to Seattle and from Seattle to Bozeman makes more of a difference than you can see! Thank you and Merry Christmas! I hope all your financial needs are met and that very good things come your way.

The agent at check in and at the gate were less than thrilled to be at work. I'm not a fan of Kayak's placement on the plane. I got put in the middle seat and none of my preferences were used.

In ATL they have two sets of departure screens. Follow what is on your airline's departure board - the ATL Airport Authority departure board had completely incorrect details about the gate assignment for my flight, which would have made me miss boarding.

Flight was delayed it was hot while sitting on the plane, one engine was working on the plane until they had to do some jimmy rigging down the runway in order for the other engine to charge up. It was ridiculous

The flight was very good and the staff was very friendly and helpful!

The only thing I would say is we tried to get on a standby earlier flight, but with our fair we couldn’t. That seems senseless to leave with open seats..

Very easy to use and convenient, you can perform any action within the same portal

In a world of delays, Delta was on time both ways! Boarding was fast and efficient. Staff was friendly. AND wifi worked.

WiFi didn’t work. Flight delayed 3 hours Crew members were illiterate Seat lean back did not work.

Flight was delayed, we could have been notified earlier and in a consistent manner. App was not refreshing for another passenger to get the latest flight status. We could have stayed and waited at the hotel instead of waiting at the airport had we known the flight was going to delayed for more than 5 hours. The toilet is too tight, and needs to be cleaned more frequently (every hour). The entertainment screen froze, the touch screen not responding to touch. We were upgraded to comfort, it is more comfortable than regular economy seats.

This wasn't my experience with Delta. It was just the Pegasus flight. Seats were very hard. Staff was kinda rough. Not very nice. Charged me for snacks. For a 4 hour flight I would've expected more.

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.

No meal service to the back of the plane as it started late or was too slow to get it out before it was time to land.

Terrible, if possible won't be flying again anytime soon!

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.

The gate got changed several times and the flight was delayed over an hour. Awful experience

American continues to decline in their customer service and its beyond disappointing.

It was an older plane. First Class was not especially roomy or comfortable. It was a short flight so there were no meal but they did offer mixed nuts which used to be normal but now is rare. Crew member was very polite and professional.

Flight to Tampa was delayed taking off due to plane arriving late but no other issues

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

Information on your arrival and departure airports