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Find cheap flights from Chicago to Big Sky from $115

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from Chicago to Big Sky departing on 7/17. 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
0 bags
Thu 6/27
Thu 7/4

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In the last 7 days travelers have searched 42,816,550 times on KAYAK, and here is why:

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Good to know

Low season

November

High season

August

Cheapest flight

$115
Best time to beat the crowds but there is an average 4% increase in price.
Most popular time to fly and prices are also 5% lower on average.
Flight from Chicago O'Hare Airport to Bozeman

When to book flights from Chicago to Big Sky

Are your dates flexible? Find out the best times to travel from Chicago to Big Sky based on our flight data from the last year. Discover the cheapest month and even day to fly.
Estimated round-trip price

FAQs for booking flights from Chicago to Big Sky

  • Which airports will I be using when flying from Chicago to Big Sky?

    When flying out of Chicago you’ll be using one of these airports: Chicago Midway or Chicago O'Hare Intl. Big Sky does not have its own airport so you’ll be flying into nearby Bozeman Gallatin Field airport, which is 37.5 mi away.

  • How long does a flight from Chicago to Big Sky take?

    Direct flights cover the 1,198 miles separating Chicago and Big Sky in about 3h 15m.

  • How many flights are there between Chicago and Big Sky?

    6 direct flights run between Chicago and Big Sky on a daily basis. On average, there are about 47 departures each week.

  • What’s the cheapest day of the week to fly between Chicago and Big Sky?

    Consider leaving on a Thursday and avoid Saturdays if you are looking for the best rates. For your return to Chicago, you’ll find the best rates on Saturdays and the most expensive ones on Thursdays.

  • How does KAYAK find such low prices on flights from Chicago to Big Sky?

    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 to Big Sky.

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

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Big Sky from Chicago 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 to Big Sky?

    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 to Big Sky with an airline and back to Chicago with another airline.

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

    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 to Big Sky from Chicago up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

  • Which airlines provide the cheapest flights from Chicago to Big Sky?

    In the last 72 hours, the cheapest one-way ticket between Chicago and Big Sky found on KAYAK was with Sun Country Air for $115. American Airlines offered a round-trip connection from $351 and Alaska Airlines from $352.

See more FAQs

Top tips for finding cheap flights from Chicago to Big Sky

  • There is no airport in Big Sky. Instead, you’ll be flying into Gallatin Field Airport when flying between Chicago and Big Sky.
  • The cheapest flight from Chicago to Big Sky was found 88 days before departure, on average.
  • Book at least 2 weeks before departure in order to get a below-average price.
  • High season is considered to be November, December and January. The cheapest month to fly is January.
See more tips

Top 5 airlines serving Chicago to Big Sky

 
Need help choosing which airline to fly with from Chicago to Big Sky? 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 9192 reviews
8.2Boarding
7.3Food
7.3Entertainment
7.9Comfort
8.6Crew
Airline reviews

Flights were on time. Check in was fine. Crew members were pleasant.

10.0 ExcellentAnonymous, May 2024TUS - SEA
Read more about Alaska Airlines reviews

Flights were on time. Check in was fine. Crew members were pleasant.

The boarding gate is literally just an aisle to the concourse. There is no seating and it's shared with several other airlines. It's crowded, hot, and standing-room only. It's difficult to hear gate announcements over the PA system with too many other carriers crammed into a small space. I've enjoyed flying AA in the past on the west coast, but the BNA single gate experience is horrendous! Never again from BNA to SEA with AA.

I would have liked it to have been easier to order food for the flight. My son was not happy with the snack pack I bought him and it was a very long flight for a little boy to go without food.

It was a partial full flight. But even with a spare seat it was hard to get comfortable More on me being a wide body probably

I had a middle seat in between two large men. It was a redeye so needless to say I didn’t get a minute of sleep. One guy was pouring over into my seat the other kept falling onto my shoulder

Our flights using Alaska Airlines went great! All of the flight attendants were very friendly. Big shout out to the pilots for getting us to and from our destinations safely!

I can’t complain. Perhaps passing out headphones, but it was on me to bring my own since I could have used some for my personal device.

Easy and quick boarding. A bit of a hard landing at PDX

Great price on internet. I love that WiFi was so affordable. Got a lot done.

Very close to on-time takeoff and landing. Attendants were all great - Julia was best! Joined the Alaska Air Rewards and will fly with them again!

Flew first class so everything was great. But maybe because the flights were red eye, no meals were served, just chips. I flew Alaska Air 1st class at 9PM (2 hour flight) and they served beef short rib sliders!

Had to change aircraft due to a faulty door. Surprisingly it only caused about an hour and a half of delay. Delta handled this situation as well as can be expected.

Awful. Flight was continuously getting delayed and gates kept changing without any reason. Flight was delayed for more then 3 hours

Paid premium for Delta only to be on safe but tired old 767 with ancient cabin in mediocre condition. Poor wifi and horrible inflight entertainment. Hardly a premium experience. Should have flown SW and had fun flight crew and no pretense

Our flight to Zurich was delayed by almost 3 hours, so we missed our next flight. There was no indication it would be delayed this much. We were told the gate had changed and then it apparently took over 2 hours to load the "catering" on the plane. We were not compensated in any way for the trouble.

Rated entertainment as Mediocre as there were major problems with the Infotainment system that took probably a half hour for them to fix.

Your crew could maybe answer the call bell at least one of the times I pressed it. I pressed it first time with 2.5 hours left in our flight bc my partner was hungry and wanted a sandwich. We finally got the sandwich with 40 mins left in the flight.

Delta crushed it. Flight attendant in first was attentive and just never stopped. Honestly one of the best domestic flights I’ve been on.

They were an hour late and they didn’t have my wheelchair for me

The Flight crew didn’t serve us until about 1.5 hours into the flight because of turbulence but after it ended it was fine to move around. They served us water only and snacks and then NEVER, NOT ONE TIME came through to collect trash until right before landing about 1.5 hours later. There was absolutely no need for that. They crew was just standing around talking and visiting with each other and really never tried to see if we might want something besides water or even try to come pick up trash. This is VERY unusual for a Delta flight but it was not what I would have expected for a 4 hour flight.

There was no screens on board AND the WiFi didn’t work. My seat was broken and couldn’t recline so I couldn’t even sleep. The flight attendants didn’t offer anything to make it more comfortable. It was such an old cramped plane, when the person in front of me reclined I couldn’t even open my tray table. All the United ads talk about guaranteeing everyone gets a screen!

I’ve had a couple flights this week on United that were delayed by an hour or more

Great! The plane was decently sized and comfortable. The staff was nice and there was great in flight entertainment

Last minute gate change nearly caused us to miss our flight. Change was not announced or displayed in the main board at the old gate. Terrible communication. When we landed we had to wait 20 minutes because there was another plane at the assigned gate. Not the crew’s fault, but adding 20 minutes to a 45 minute flight sucked.

delay several times and wait extra long to board. no entertainment service because there are problem for some rows. always encounter some delays for the last flight of the day.

The flight experience was very good! Especially the United Club!

I was not able to buy food in the flight. They refer to include your Credit card in the APP, and if you are not from USA (i have a credit card form Canada) it is not possible

The flight from Ottawa to Chicago took a lot longer due to DC in Ottawa. We got to Chicago and went to our gate to catch our flight. We only had nine minutes I found that very stressful.

Good boarding. Crew started quick with drinks and food. They came around several times for trash which I really liked. Other than turbulence due to storms in the area, flight was great.

The control panel for the seat back screen did not work at all after takeoff.

Good flights. Departure and arrivals were on time. DFW was a little problematic in that the Skytrain without prior notice bypassed the Echo terminal so that delayed my arrival at my connecting flight.

Because I can’t stand very long in one place, I was allowed to reword.

5 hour flight - full flight - not enough room to use my computer - slightly delayed - Admirals club was excellent quality food, drink made up for flight seating. No food offerred on flight, you ahd to prebook.

Excellent- plan was barely populated. I cannot remember a flight where I was able/encouraged to stretch out!

Great flight. Boarding was efficient and quick. On time departure and smooth flight. Flight arrived early at destination. Good experience.

Had technical issue which delayed the flight period. Flight crew knew there was 5 passengers that the connecting flight was within 15 minutes once at the gate. Rather than identify the 5 passengers to assure they got first. The flight attended mentioned it but didn't assist to assure passengers with connecting flights off first. This caused a hardship and our party of 3 missed the connecting flight.

I don't like that I have to pay if I want extra leg room. The seats are so expensive; I sit in normal seats and my legs and knees cramp the entire flight. I never feel comfortable on AA flights.

Flight was delayed at departure due to weather and the need for de-icing. The flight was smooth but there was a delay at arrival due to weather. We were in a hold for 20 minutes or more. The flight arrived more than 30 minutes late. Airlines have no control over the weather and I'm glad that they follow all safety procedures. Had to wait a long time for my checked luggage. Whole process was slow and the bags arrived wet due to the rain. The onboard wifi and entertainment access was spotty and the signal was dropped several times. Otherwise the crew was great and friendly. They tried to get everyone's bags stowed and seated so we could take off.

Regarding the boarding: it needs more efforts to make it more convenient

Deicing in Denver took forever and I almost missed my connection. De-ice faster! Not Americans fault.

They were flexible and let my daughter and I sit in the back of the plane.

A flight attendant appeared to not be in a good mood that served us; felt she was being short. Overhead announcements were very loud compared to other airlines and the message was not friendly and was a little confusing. This flight was particularly over all was not satisfying compared to previous Sun Country flights.

Airlines should have to add their fees to their fares

I am upset with the hidden fees for bringing on an overhead carryon onto flight and also having to pay for my seat selection. This should all be part of the original price of the ticket. Very poor customer service

Sun country Wi-Fi was not working. Flight was overbooked by two people. Had to pay extra for carryons day before flight and I don’t like hidden fees like that.

WiFi did not work. Woman flight attendant in the rear of the plane was moody.

Flight delayed over 3 hrs due to unexplained issue. No text message to notify.

Well we did not realize at first it was a ground transfer, but we really enjoyed it and would definitely recommend to friends and family. Our driver was awesome and the ride was wonderful. A bathroom on board would have been nice, but at least we were warned that there wasn't one so we went ahead of time.

We were on a fairly long flight and they offered nothing for a snack (unless you paid) and then quickly gave you a drink and were never to be seen again. I would have loved a refill on my water but that was not an option. The flight attendants were standing on ther phone when we boarded and left and never even greeted us. Any other flight I have been on they would have welcomed us on the plane and again greeted us as we got off. Our landline transfer from MSP to Rochester on the other hand was FANTASTIC! We would highly recommend!

Took forever to get the plane loaded and unloaded. Longest I have ever had. I was in the middle of the plane and it almost took a hour after landing to get off of the plane.

Book cheap flights from Chicago to Big Sky

Recent round-trip flight deals

7/18Thu
1 stop
4h 53mORD-BZN
7/25Thu
3 stops
32h 32mBZN-ORD
$340
6/28Fri
1 stop
13h 44mORD-BZN
7/10Wed
3 stops
17h 56mBZN-ORD
$344
8/14Wed
nonstopAmerican Airlines
3h 15mORD-BZN
8/21Wed
nonstopAmerican Airlines
3h 00mBZN-ORD
$351
7/5Fri
1 stopAlaska Airlines
10h 09mORD-BZN
7/10Wed
1 stopAlaska Airlines
11h 36mBZN-ORD
$352
6/17Mon
nonstopAmerican Airlines
3h 26mORD-BZN
6/21Fri
nonstopAmerican Airlines
3h 04mBZN-ORD
$361
7/15Mon
1 stopAlaska Airlines
10h 09mORD-BZN
7/23Tue
1 stopAlaska Airlines
9h 45mBZN-ORD
$362
7/18Thu
nonstopUnited Airlines
3h 20mORD-BZN
7/25Thu
nonstopUnited Airlines
3h 03mBZN-ORD
$366
9/3Tue
1 stopDelta
5h 26mMDW-BZN
9/11Wed
1 stopDelta
6h 02mBZN-MDW
$370
7/15Mon
1 stopUnited Airlines
5h 38mORD-BZN
7/18Thu
nonstopUnited Airlines
3h 03mBZN-ORD
$371
7/3Wed
1 stopDelta
5h 42mORD-BZN
7/9Tue
1 stopDelta
4h 58mBZN-ORD
$375

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Recent one-way flight deals

7/17Wed
1 stopSun Country Air
17h 38mORD-BZN
$115
6/12Wed
2 stops
24h 01mORD-BZN
$140
9/24Tue
nonstopAmerican Airlines
3h 18mORD-BZN
$176
10/1Tue
2 stopsAlaska Airlines
9h 08mORD-BZN
$177
10/8Tue
1 stopAlaska Airlines
11h 33mORD-BZN
$178
7/16Tue
1 stopDelta
5h 40mORD-BZN
$185
9/24Tue
1 stopDelta
5h 18mMDW-BZN
$185
8/18Sun
nonstopAmerican Airlines
3h 15mORD-BZN
$186
7/30Tue
nonstopUnited Airlines
3h 25mORD-BZN
$209
7/6Sat
nonstopUnited Airlines
3h 20mORD-BZN
$226

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Last minute flights from Chicago to Big Sky

Last minute flight, train and bus deals

6/1Sat
multi-stop
23h 29mORD-BZN
6/3Mon
multi-stop
22h 50mBZN-ORD
$569
6/1Sat
multi-stop
23h 29mORD-BZN
6/3Mon
multi-stop
22h 50mBZN-ORD
$585
5/29Wed
multi-stop
26h 26mORD-BZN
6/2Sun
multi-stop
32h 24mBZN-ORD
$621
5/29Wed
multi-stopAlaska Airlines
9h 09mORD-BZN
6/3Mon
multi-stopAlaska Airlines
6h 40mBZN-ORD
$630
6/1Sat
nonstopUnited Airlines
3h 25mORD-BZN
6/3Mon
multi-stopUnited Airlines
19h 46mBZN-ORD
$649
5/29Wed
nonstopUnited Airlines
3h 21mORD-BZN
6/3Mon
nonstopUnited Airlines
3h 03mBZN-ORD
$651
5/30Thu
multi-stopUnited Airlines
6h 15mORD-BZN
6/3Mon
multi-stopUnited Airlines
17h 33mBZN-ORD
$654
5/29Wed
multi-stopAlaska Airlines
27h 15mORD-BZN
6/3Mon
multi-stopAlaska Airlines
6h 40mBZN-ORD
$694
5/29Wed
multi-stopDelta
7h 11mORD-BZN
6/2Sun
multi-stopDelta
5h 56mBZN-ORD
$720
5/29Wed
multi-stopDelta
8h 11mMDW-BZN
6/2Sun
multi-stopDelta
6h 35mBZN-MDW
$720

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Flights to Big Sky

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