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Find cheap flights from Chicago to Big Sky from $88

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 7/5. 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
Sat 6/22
Sat 6/29

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In the last 7 days travelers have searched 43,800,826 times on KAYAK, and here is why:

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Good to know

Low season

November

High season

August

Cheapest flight

$88
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 14m.

  • 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 43 departures each week.

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

    Consider leaving on a Wednesday and avoid Sundays if you are looking for the best rates. For your return to Chicago, you’ll find the best rates on Wednesdays 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 $88. Sun Country Air offered a round-trip connection from $175 and United Airlines from $313.

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 9175 reviews
7.3Entertainment
7.9Comfort
8.6Crew
7.3Food
8.2Boarding
Airline reviews

I didn't have food or use entertainment, so those evaluations are invalid.

10.0 ExcellentLonnie, May 2024SEA - FLL
Read more about Alaska Airlines reviews

I didn't have food or use entertainment, so those evaluations are invalid.

I got to my destination but no comforts no snacks nothing. Like herding cows!!

The flight was late getting in, so many were stressed. The snacks for a LONG flight was not enough.

My only comment was the confusion at Houston. Suppose to leave at 6 am and didn't leave til 11 am. Then moving from gate 10 to 30 and couple of hours later back to gate 10. Otherwise everyone everything was great.

The whole experience went very well except the rest rooms were a disaster

My experience for a sort flight was perfect and hassle free.

Sat on tarmac for 30 minutes despite staring at three empty gates, one of which we eventually pulled into

It was ok. Alaska was adequate. Efficient and what I paid for it was fair. The boarding area at the gate was a joke. By the time they get past the C boarding group people all line up impatiently and then it’s chaos. We were boarding early then we sat on the tarmac for 30 minutes. I would of rather sat in the airport.

The flight was mostly smooth and quiet. No seatback screens.

The entire flight was terrible. I recently had neurocervical surgery, and I needed a wheelchair to get to the gate. They were wonderful, truly. The flight staff was lovely, as well. Despite the need for assistance, I was put in the middle seat in the last row in front of the toilets. It was "policy" that I couldn't be moved. The pain I felt after the flight was astromnomical. The flight was so WARM, I was sweating, and the "air" did nothing to the stuffy feeling. The seats were uncomfortable, the plane itself was in bad/worn condition (although very clean - thanks to the staff) - and the flight was definitely rocky (not the pilot's fault, of course). All in all - one of the worst flights I've ever taken. The humans were wonderful!! You have a really great team. But your flight policies and your plane are absymal. For what you charge, you need to upgrade your plane and your policies.

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.

The 1st class male crew member was very pleasant - the short female with round glasses , maybe in 50’s had no personality- never spoke when delivering my food, drink, & never smiled the whole trip! In fact looked annoyed when the boarding proses was happening- I would never hire this woman - unfriendly . Have never dealt with a crew member like her-

5-hour delay due to storms in Tanoa and airspace restricted by Miami traffic controllers.

A regional sized plane was used for a cross country flight with no overhead bin space. I had to "pink check" my laptop and my medications. I was NOT pleased!!!!

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.

Plane was so old it had cigarette butt trays in the seat

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

6/26Wed
1 stopSun Country Air
16h 02mORD-BZN
7/3Wed
1 stopSun Country Air
9h 30mBZN-ORD
$175
7/9Tue
1 stopSun Country Air
15h 52mORD-BZN
7/17Wed
1 stopSun Country Air
5h 39mBZN-ORD
$195
7/24Wed
nonstopUnited Airlines
3h 20mORD-BZN
8/7Wed
1 stopUnited Airlines
6h 34mBZN-ORD
$313
7/30Tue
1 stopAlaska Airlines
10h 09mORD-BZN
8/6Tue
1 stopAlaska Airlines
9h 45mBZN-ORD
$318
9/24Tue
nonstopUnited Airlines
3h 21mORD-BZN
9/28Sat
nonstopUnited Airlines
3h 03mBZN-ORD
$323
6/19Wed
1 stopAlaska Airlines
13h 50mORD-BZN
7/10Wed
2 stopsAlaska Airlines
22h 15mBZN-ORD
$334
8/10Sat
1 stopAmerican Airlines
7h 29mORD-BZN
8/14Wed
1 stopAmerican Airlines
6h 34mBZN-ORD
$342
8/13Tue
1 stopDelta
5h 11mMDW-BZN
8/24Sat
1 stopDelta
5h 41mBZN-MDW
$342
8/9Fri
nonstopAmerican Airlines
3h 15mORD-BZN
8/16Fri
nonstopAmerican Airlines
3h 00mBZN-ORD
$343
8/13Tue
2 stopsDelta
11h 49mMDW-BZN
8/24Sat
1 stopDelta
5h 41mBZN-MDW
$347

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Recent one-way flight deals

7/5Fri
1 stopSun Country Air
13h 32mORD-BZN
$88
7/18Thu
1 stopSun Country Air
4h 53mORD-BZN
$103
8/7Wed
nonstopUnited Airlines
3h 25mORD-BZN
$152
8/7Wed
1 stopAmerican Airlines
7h 29mORD-BZN
$161
9/14Sat
1 stopAlaska Airlines
28h 41mORD-BZN
$171
9/14Sat
nonstopAmerican Airlines
3h 14mORD-BZN
$172
9/14Sat
2 stopsAlaska Airlines
9h 09mORD-BZN
$173
9/14Sat
2 stopsDelta
11h 07mMDW-BZN
$186
6/13Thu
nonstopUnited Airlines
3h 21mORD-BZN
$196
8/18Sun
2 stopsDelta
7h 18mORD-BZN
$200

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Last minute flights from Chicago to Big Sky

Last minute flight, train and bus deals

5/28Tue
multi-stop
22h 17mORD-BZN
6/3Mon
multi-stop
33h 30mBZN-ORD
$523
5/28Tue
multi-stop
28h 22mORD-BZN
6/3Mon
multi-stop
33h 30mBZN-ORD
$590
5/28Tue
multi-stop
22h 17mORD-BZN
6/3Mon
multi-stop
22h 34mBZN-ORD
$615
5/26Sun
multi-stopAlaska Airlines
9h 59mORD-BZN
6/2Sun
multi-stopAlaska Airlines
6h 40mBZN-ORD
$630
5/28Tue
nonstopUnited Airlines
3h 25mORD-BZN
6/3Mon
multi-stopUnited Airlines
19h 46mBZN-ORD
$649
5/28Tue
nonstopUnited Airlines
3h 25mORD-BZN
6/1Sat
nonstopUnited Airlines
3h 03mBZN-ORD
$651
5/28Tue
multi-stopAlaska Airlines
20h 21mORD-BZN
6/3Mon
multi-stopAlaska Airlines
9h 39mBZN-ORD
$654
5/25Sat
multi-stopDelta
5h 22mORD-BZN
6/3Mon
multi-stopDelta
5h 56mBZN-ORD
$658
5/26Sun
multi-stopDelta
8h 11mMDW-BZN
6/2Sun
multi-stopDelta
6h 35mBZN-MDW
$658
5/28Tue
multi-stopUnited Airlines
7h 54mORD-BZN
6/3Mon
nonstopUnited Airlines
3h 03mBZN-ORD
$661

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Flights to Big Sky

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