$125+ Cheap flights from Chicago (CHI) to Montana
This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 4/9. Fares are subject to change and may not be available on all flights or dates of travel.
CHI — BZN
Apr 16 — Apr 231
Round-trip
1 adult, Economy
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Find cheap flights from Chicago to Montana with Cheapflights
1. Tell us where you want to go
Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”2. Select your favorite providers
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Cheapest flights from Chicago to MontanaExplore the most affordable flight options available from Chicago to Montana. Find the lowest fares from popular airlines and budget airlines, with prices last updated on March 17, 2026.
Explore the most affordable flight options available from Chicago to Montana. Find the lowest fares from popular airlines and budget airlines, with prices last updated on March 17, 2026.
This Alaska Airlines deal was found by Cheapflights users on 3/12. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 4/136:00 am
ORD
- BZN
1 stop9h 10m
Alaska Airlines
Sat 4/187:26 pm
BZN
- ORD
1 stop10h 13m
Alaska Airlines
Deal found 3/12![Alaska Airlines logo]()
$249
This United Airlines deal was found by Cheapflights users on 3/12. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 8/228:40 am
ORD
- BIL
Nonstop3h 22m
United Airlines
Wed 8/2611:43 am
BIL
- ORD
Nonstop3h 05m
United Airlines
Deal found 3/12![United Airlines logo]()
$251
This United Airlines deal was found by Cheapflights users on 3/12. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 8/228:40 am
ORD
- BIL
Nonstop3h 22m
United Airlines
Tue 8/252:25 pm
BIL
- ORD
1 stop7h 16m
United Airlines
Deal found 3/12![United Airlines logo]()
$261
This American Airlines deal was found by Cheapflights users on 3/14. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 8/211:36 pm
ORD
- BZN
Nonstop3h 14m
American Airlines
Tue 8/254:54 pm
BZN
- ORD
Nonstop3h 09m
American Airlines
Deal found 3/14![American Airlines logo]()
$268
This Alaska Airlines deal was found by Cheapflights users on 3/13. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 4/148:20 am
ORD
- BZN
1 stop28h 40m
Alaska Airlines
Sat 4/187:26 pm
BZN
- ORD
1 stop10h 13m
Alaska Airlines
Deal found 3/13![Alaska Airlines logo]()
$269
This American Airlines deal was found by Cheapflights users on 3/12. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 4/95:00 am
ORD
- BIL
1 stop9h 21m
American Airlines
Thu 4/161:51 pm
BIL
- ORD
1 stop8h 57m
American Airlines
Deal found 3/12![American Airlines logo]()
$269
This United Airlines deal was found by Cheapflights users on 3/12. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 8/57:52 pm
ORD
- BIL
Nonstop3h 23m
United Airlines
Mon 8/106:00 pm
BIL
- ORD
1 stop5h 44m
United Airlines
Deal found 3/12![United Airlines logo]()
$270
This Delta deal was found by Cheapflights users on 3/12. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 5/22:12 pm
MDW
- BIL
1 stop6h 54m
Delta
Tue 5/56:24 am
BIL
- MDW
1 stop6h 08m
Delta
Deal found 3/12![Delta logo]()
$271
This United Airlines deal was found by Cheapflights users on 3/12. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 8/1112:45 pm
ORD
- BZN
Nonstop3h 37m
United Airlines
Tue 8/182:37 pm
BZN
- ORD
1 stop7h 04m
United Airlines
Deal found 3/12![United Airlines logo]()
$275
This American Airlines deal was found by Cheapflights users on 3/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 6/31:44 pm
ORD
- BZN
Nonstop3h 18m
American Airlines
Tue 6/94:43 pm
BZN
- ORD
1 stop6h 59m
American Airlines
Deal found 3/16![American Airlines logo]()
$276
This Delta deal was found by Cheapflights users on 3/12. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 4/1811:19 am
ORD
- BIL
2 stops12h 05m
Delta
Tue 4/215:20 am
BIL
- ORD
1 stop5h 31m
Delta
Deal found 3/12![Delta logo]()
$276
This American Airlines deal was found by Cheapflights users on 3/14. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 8/211:36 pm
ORD
- BZN
Nonstop3h 14m
American Airlines
Fri 8/281:22 pm
BZN
- ORD
1 stop8h 21m
American Airlines
Deal found 3/14![American Airlines logo]()
$278
Best flights from Chicago to MontanaDiscover carefully curated flight deals from Chicago to Montana that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated March 17, 2026.
Discover carefully curated flight deals from Chicago to Montana that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated March 17, 2026.
This Alaska Airlines deal was found by Cheapflights users on 3/12. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 4/106:00 am
ORD
- BZN
1 stop9h 10m
Alaska Airlines
Thu 4/167:26 pm
BZN
- ORD
1 stop10h 13m
Alaska Airlines
Deal found 3/12![Alaska Airlines logo]()
$249
This United Airlines deal was found by Cheapflights users on 3/12. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 5/232:33 pm
ORD
- BIL
1 stop7h 09m
United Airlines
Tue 5/264:10 pm
BIL
- ORD
1 stop7h 34m
United Airlines
Deal found 3/12![United Airlines logo]()
$271
This Delta deal was found by Cheapflights users on 3/12. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 5/307:13 pm
MDW
- BIL
1 stop4h 53m
Delta
Tue 6/25:35 am
BIL
- MDW
2 stops11h 58m
Delta
Deal found 3/12![Delta logo]()
$276
This Southwest deal was found by Cheapflights users on 3/12. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 5/23:05 pm
ORD
- BZN
1 stop7h 35m
Southwest
Sat 5/1611:10 am
BZN
- ORD
2 stops11h 15m
Southwest
Deal found 3/12![Southwest logo]()
$294
This United Airlines deal was found by Cheapflights users on 3/12. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 4/182:00 pm
ORD
- BIL
1 stop7h 57m
United Airlines
Tue 4/212:35 pm
BIL
- ORD
1 stop5h 45m
United Airlines
Deal found 3/12![United Airlines logo]()
$271
This Delta deal was found by Cheapflights users on 3/12. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 5/911:07 am
ORD
- BIL
2 stops12h 45m
Delta
Tue 5/125:35 am
BIL
- ORD
1 stop5h 17m
Delta
Deal found 3/12![Delta logo]()
$276
This Southwest deal was found by Cheapflights users on 3/14. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 4/176:15 pm
ORD
- BZN
1 stop5h 45m
Southwest
Tue 4/2111:20 am
BZN
- ORD
2 stops11h 35m
Southwest
Deal found 3/14![Southwest logo]()
$294
This Alaska Airlines deal was found by Cheapflights users on 3/14. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 4/228:00 am
ORD
- MSO
1 stop7h 59m
Alaska Airlines
Tue 4/281:59 pm
MSO
- ORD
1 stop9h 00m
Alaska Airlines
Deal found 3/14![Alaska Airlines logo]()
$297
This United Airlines deal was found by Cheapflights users on 3/12. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 8/85:00 am
ORD
- BIL
1 stop5h 35m
United Airlines
Tue 8/1111:43 am
BIL
- ORD
Nonstop3h 05m
United Airlines
Deal found 3/12![United Airlines logo]()
$283
This Delta deal was found by Cheapflights users on 3/12. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 5/99:23 am
MDW
- BIL
2 stops9h 16m
Delta
Tue 5/126:27 am
BIL
- MDW
2 stops11h 06m
Delta
Deal found 3/12![Delta logo]()
$290
This Alaska Airlines deal was found by Cheapflights users on 3/12. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 5/88:48 pm
ORD
- GTF
1 stop21h 47m
Alaska Airlines
Sun 5/106:15 pm
GTF
- ORD
1 stop11h 25m
Alaska Airlines
Deal found 3/12![Alaska Airlines logo]()
$298
This Delta deal was found by Cheapflights users on 3/14. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 5/277:13 pm
MDW
- BIL
1 stop5h 01m
Delta
Mon 6/16:30 am
BIL
- MDW
1 stop5h 49m
Delta
Deal found 3/14![Delta logo]()
$300
This Southwest deal was found by Cheapflights users on 3/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 6/34:00 pm
MDW
- BZN
2 stops9h 15m
Southwest
Mon 6/87:35 am
BZN
- MDW
Nonstop2h 50m
Southwest
Deal found 3/16![Southwest logo]()
$337
This Expedia deal was found by Cheapflights users on 3/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 4/158:00 am
ORD
- FCA
1 stop12h 46m
Alaska Airlines
Wed 4/227:28 pm
FCA
- ORD
1 stop10h 12m
Alaska Airlines
Deal found 3/16![Alaska Airlines logo]()
$324
This Delta deal was found by Cheapflights users on 3/12. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 8/221:35 pm
ORD
- BIL
2 stops9h 52m
Delta
Tue 8/255:45 am
BIL
- ORD
1 stop5h 36m
Delta
Deal found 3/12![Delta logo]()
$305
This United Airlines deal was found by Cheapflights users on 3/12. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 4/112:00 pm
ORD
- FCA
1 stop8h 47m
United Airlines
Sat 4/182:33 pm
FCA
- ORD
1 stop7h 25m
United Airlines
Deal found 3/12![United Airlines logo]()
$336
This Southwest deal was found by Cheapflights users on 3/14. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 4/245:15 pm
MDW
- BZN
1 stop6h 45m
Southwest
Mon 4/2710:55 am
BZN
- MDW
2 stops9h 05m
Southwest
Deal found 3/14![Southwest logo]()
$342
This Delta deal was found by Cheapflights users on 3/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 6/275:20 pm
ORD
- BZN
1 stop7h 33m
Delta
Fri 7/311:30 am
BZN
- ORD
1 stop5h 31m
Delta
Deal found 3/16![Delta logo]()
$309
This United Airlines deal was found by Cheapflights users on 3/12. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 6/206:00 am
ORD
- BZN
1 stop8h 20m
United Airlines
Sat 6/278:00 am
BZN
- ORD
Nonstop3h 05m
United Airlines
Deal found 3/12![United Airlines logo]()
$365
This Delta deal was found by Cheapflights users on 3/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 4/282:12 pm
MDW
- BZN
1 stop6h 59m
Delta
Thu 4/302:53 pm
BZN
- MDW
1 stop6h 35m
Delta
Deal found 3/16![Delta logo]()
$309
This Delta deal was found by Cheapflights users on 3/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 6/57:13 pm
MDW
- BIL
1 stop5h 01m
Delta
Mon 6/86:15 am
BIL
- MDW
1 stop5h 56m
Delta
Deal found 3/16![Delta logo]()
$309
This United Airlines deal was found by Cheapflights users on 3/12. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 4/282:05 pm
ORD
- GTF
1 stop8h 12m
United Airlines
Sat 5/22:35 pm
GTF
- ORD
1 stop5h 48m
United Airlines
Deal found 3/12![United Airlines logo]()
$378
This Southwest deal was found by Cheapflights users on 3/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 7/1112:50 pm
MDW
- BZN
2 stops10h 05m
Southwest
Sat 7/185:00 pm
BZN
- MDW
1 stop10h 40m
Southwest
Deal found 3/16![Southwest logo]()
$440
This Delta deal was found by Cheapflights users on 3/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 5/17:10 pm
ORD
- BZN
1 stop5h 59m
Delta
Fri 5/81:00 pm
BZN
- ORD
2 stops9h 59m
Delta
Deal found 3/16![Delta logo]()
$314
This United Airlines deal was found by Cheapflights users on 3/14. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 8/222:33 pm
ORD
- FCA
1 stop7h 59m
United Airlines
Tue 8/254:08 pm
FCA
- ORD
Nonstop3h 42m
United Airlines
Deal found 3/14![United Airlines logo]()
$380
This Alaska Airlines deal was found by Cheapflights users on 3/12. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/171:35 pm
ORD
- FCA
Nonstop3h 39m
Alaska Airlines
Sat 8/224:54 pm
FCA
- ORD
Nonstop3h 22m
Alaska Airlines
Deal found 3/12![Alaska Airlines logo]()
$465
This Delta deal was found by Cheapflights users on 3/13. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 8/237:15 am
ORD
- BZN
1 stop8h 31m
Delta
Sat 8/295:45 am
BZN
- ORD
2 stops8h 13m
Delta
Deal found 3/13![Delta logo]()
$314
This United Airlines deal was found by Cheapflights users on 3/12. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 6/46:00 am
ORD
- MSO
1 stop8h 24m
United Airlines
Thu 6/115:20 pm
MSO
- ORD
1 stop6h 24m
United Airlines
Deal found 3/12![United Airlines logo]()
$389
This Delta deal was found by Cheapflights users on 3/15. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 4/146:00 am
MDW
- BZN
1 stop8h 36m
Delta
Sat 4/185:30 am
BZN
- MDW
2 stops7h 02m
Delta
Deal found 3/15![Delta logo]()
$314
This Delta deal was found by Cheapflights users on 3/14. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 5/282:00 pm
ORD
- BIL
2 stops9h 52m
Delta
Mon 6/15:30 am
BIL
- ORD
1 stop5h 22m
Delta
Deal found 3/14![Delta logo]()
$314
Last-minute flights from Chicago to MontanaDiscover last-minute flight deals from Chicago to Montana. Data last updated March 17, 2026 and is based on user searches.
Discover last-minute flight deals from Chicago to Montana. Data last updated March 17, 2026 and is based on user searches.
This American Airlines deal was found by Cheapflights users on 3/14. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 4/310:09 am
ORD
- BZN
Nonstop3h 29m
American Airlines
Tue 4/71:43 pm
BZN
- ORD
1 stop8h 02m
American Airlines
Deal found 3/14![American Airlines logo]()
$279
This American Airlines deal was found by Cheapflights users on 3/12. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 4/95:00 am
ORD
- BIL
1 stop9h 21m
American Airlines
Thu 4/161:51 pm
BIL
- ORD
1 stop8h 57m
American Airlines
Deal found 3/12![American Airlines logo]()
$269
This United Airlines deal was found by Cheapflights users on 3/12. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 4/109:05 am
ORD
- BZN
Nonstop3h 24m
United Airlines
Fri 4/172:40 pm
BZN
- ORD
1 stop7h 14m
United Airlines
Deal found 3/12![United Airlines logo]()
$275
This Alaska Airlines deal was found by Cheapflights users on 3/12. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 4/136:00 am
ORD
- BZN
1 stop9h 10m
Alaska Airlines
Sat 4/187:26 pm
BZN
- ORD
1 stop10h 13m
Alaska Airlines
Deal found 3/12![Alaska Airlines logo]()
$249
This Alaska Airlines deal was found by Cheapflights users on 3/12. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 4/136:00 am
ORD
- BZN
1 stop9h 10m
Alaska Airlines
Sun 4/197:00 am
BZN
- ORD
1 stop22h 39m
Alaska Airlines
Deal found 3/12![Alaska Airlines logo]()
$286
This Alaska Airlines deal was found by Cheapflights users on 3/13. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 4/148:20 am
ORD
- BZN
1 stop28h 40m
Alaska Airlines
Sat 4/187:26 pm
BZN
- ORD
1 stop10h 13m
Alaska Airlines
Deal found 3/13![Alaska Airlines logo]()
$269
This Alaska Airlines deal was found by Cheapflights users on 3/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 4/148:20 am
ORD
- BZN
1 stop28h 40m
Alaska Airlines
Tue 4/2111:20 am
BZN
- ORD
1 stop11h 39m
Alaska Airlines
Deal found 3/16![Alaska Airlines logo]()
$283
This United Airlines deal was found by Cheapflights users on 3/12. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 4/182:00 pm
ORD
- BIL
1 stop7h 57m
United Airlines
Tue 4/212:35 pm
BIL
- ORD
1 stop5h 45m
United Airlines
Deal found 3/12![United Airlines logo]()
$271
This Delta deal was found by Cheapflights users on 3/12. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 4/1811:19 am
ORD
- BIL
2 stops12h 05m
Delta
Tue 4/215:20 am
BIL
- ORD
1 stop5h 31m
Delta
Deal found 3/12![Delta logo]()
$276
This United Airlines deal was found by Cheapflights users on 3/12. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 4/219:05 am
ORD
- BZN
Nonstop3h 26m
United Airlines
Wed 4/2212:39 pm
BZN
- ORD
Nonstop3h 11m
United Airlines
Deal found 3/12![United Airlines logo]()
$285
This Southwest deal was found by Cheapflights users on 3/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 4/276:15 pm
ORD
- BZN
1 stop5h 45m
Southwest
Thu 4/306:15 am
BZN
- ORD
1 stop6h 40m
Southwest
Deal found 3/16![Southwest logo]()
$284
This American Airlines deal was found by Cheapflights users on 3/15. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 4/285:00 am
ORD
- BZN
1 stop8h 53m
American Airlines
Thu 4/301:43 pm
BZN
- ORD
1 stop9h 05m
American Airlines
Deal found 3/15![American Airlines logo]()
$287
One-way flights from Chicago to MontanaSearch for one-way flight options from Chicago to Montana. Find affordable one-way fares based on user searches. Data last updated March 17, 2026.
Search for one-way flight options from Chicago to Montana. Find affordable one-way fares based on user searches. Data last updated March 17, 2026.
This Alaska Airlines deal was found by Cheapflights users on 3/12. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 4/96:00 am
ORD
- BZN
1 stop9h 10m
Alaska Airlines
Deal found 3/12![Alaska Airlines logo]()
$125
This Trip.com deal was found by Cheapflights users on 3/13. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 4/36:00 am
ORD
- BZN
1 stop9h 10m
Hawaiian Airlines
Deal found 3/13![Hawaiian Airlines logo]()
$127
This Kiwi.com deal was found by Cheapflights users on 3/14. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 4/282:15 pm
MDW
- BZN
2 stops44h 20m
Multiple Airlines
Deal found 3/14![Multiple Airlines logo]()
$134
This American Airlines deal was found by Cheapflights users on 3/13. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 5/271:44 pm
ORD
- BZN
Nonstop3h 18m
American Airlines
Deal found 3/13![American Airlines logo]()
$135
This Kiwi.com deal was found by Cheapflights users on 3/13. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 5/98:52 pm
ORD
- BZN
1 stop13h 43m
Multiple Airlines
Deal found 3/13![Multiple Airlines logo]()
$137
This Kiwi.com deal was found by Cheapflights users on 3/14. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 4/296:10 am
MDW
- BZN
2 stops28h 25m
Multiple Airlines
Deal found 3/14![Multiple Airlines logo]()
$137
This Expedia deal was found by Cheapflights users on 3/14. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 4/288:48 pm
ORD
- BZN
1 stop14h 55m
Alaska Airlines
Deal found 3/14![Alaska Airlines logo]()
$140
This American Airlines deal was found by Cheapflights users on 3/15. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 7/201:49 pm
ORD
- BZN
Nonstop3h 19m
American Airlines
Deal found 3/15![American Airlines logo]()
$143
This Delta deal was found by Cheapflights users on 3/12. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 5/277:45 pm
ORD
- BZN
1 stop5h 14m
Delta
Deal found 3/12![Delta logo]()
$145
This Southwest deal was found by Cheapflights users on 3/12. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 4/55:55 am
MDW
- BZN
1 stop5h 20m
Southwest
Deal found 3/12![Southwest logo]()
$145
This Kiwi.com deal was found by Cheapflights users on 3/11. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 4/84:36 pm
ORD
- FCA
2 stops20h 07m
Multiple Airlines
Deal found 3/11![Multiple Airlines logo]()
$146
This Kiwi.com deal was found by Cheapflights users on 3/12. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 4/146:08 pm
ORD
- BZN
2 stops40h 27m
Multiple Airlines
Deal found 3/12![Multiple Airlines logo]()
$147
Find flight deals from Chicago to Montana
Keep the following information in mind while searching for Chicago to Montana flight deals. Data was last updated March 17, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $249 (Alaska Airlines) |
One-way from | $125 (Alaska Airlines) |
Popular in | March |
Cheapest in | September |
Average price | $379 |
Good round-trip deal | $286 or less |
Good one-way deal | $164 or less |
Cheapflights Fare Finder
Customize your flight search to find flights from Chicago to Montana that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated March 17, 2026.
Use the filters below to find and compare flights from Chicago to Montana that are best for you.
Fly from
Fly to
Route
Depart
Return
Cheapest round-trip
ChicagoBozeman
ORD - BZN
ORDBZN
Chicago O'Hare Intl
Fri 4/10
6:00 am-2:10 pm
1 stop9h 10m
Bozeman Gallatin Field
Thu 4/16
7:26 pm-6:39 am
1 stop10h 13m
$249
ChicagoBillings
ORD - BIL
ORDBIL
Chicago O'Hare Intl
Sat 5/23
2:33 pm-8:42 pm
1 stop7h 09m
Billings Logan Intl
Tue 5/26
4:10 pm-12:44 am
1 stop7h 34m
$271
ChicagoBillings
ORD - BIL
ORDBIL
Chicago O'Hare Intl
Sat 4/18
2:00 pm-8:57 pm
1 stop7h 57m
Billings Logan Intl
Tue 4/21
2:35 pm-9:20 pm
1 stop5h 45m
$271
ChicagoBillings
MDW - BIL
MDWBIL
Chicago Midway
Sat 5/30
7:13 pm-11:06 pm
1 stop4h 53m
Billings Logan Intl
Tue 6/2
5:35 am-6:33 pm
2 stops11h 58m
$276
ChicagoBillings
ORD - BIL
ORDBIL
Chicago O'Hare Intl
Sat 5/9
11:07 am-10:52 pm
2 stops12h 45m
Billings Logan Intl
Tue 5/12
5:35 am-11:52 am
1 stop5h 17m
$276
ChicagoBillings
ORD - BIL
ORDBIL
Chicago O'Hare Intl
Sat 8/8
5:00 am-9:35 am
1 stop5h 35m
Billings Logan Intl
Tue 8/11
11:43 am-3:48 pm
Nonstop3h 05m
$283
ChicagoBillings
MDW - BIL
MDWBIL
Chicago Midway
Sat 5/9
9:23 am-5:39 pm
2 stops9h 16m
Billings Logan Intl
Tue 5/12
6:27 am-6:33 pm
2 stops11h 06m
$290
ChicagoBozeman
ORD - BZN
ORDBZN
Chicago O'Hare Intl
Sat 5/2
3:05 pm-9:40 pm
1 stop7h 35m
Bozeman Gallatin Field
Sat 5/16
11:10 am-11:25 pm
2 stops11h 15m
$294
ChicagoBozeman
ORD - BZN
ORDBZN
Chicago O'Hare Intl
Fri 4/17
6:15 pm-11:00 pm
1 stop5h 45m
Bozeman Gallatin Field
Tue 4/21
11:20 am-11:55 pm
2 stops11h 35m
$294
ChicagoMissoula
ORD - MSO
ORDMSO
Chicago O'Hare Intl
Wed 4/22
8:00 am-2:59 pm
1 stop7h 59m
Missoula Johnson-Bell Field
Tue 4/28
1:59 pm-11:59 pm
1 stop9h 00m
$297
Showing 1-10 of 60 resultsSorted by cheapest first
Best time to book a flight from Chicago to Montana
Have a flexible travel schedule? Discover the best time to fly to Montana from Chicago with our price prediction graph.
ORD-BZN
ORD-BIL
MDW-BIL
ORD-GTF
MDW-BZN
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.
Cheapflights Insights
Everything you need to know about your flight from Chicago to Montana
CHI-USMT
ORD-BZN
ORD-BIL
MDW-BIL
ORD-GTF
What is the cheapest month to book a flight from Chicago to Montana?
Currently, October is the cheapest month in which you can book a flight from Chicago to Montana (average of $190). Flying from Chicago to Montana in December is currently the most expensive (average of $281). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.
What is the cheapest time of day to fly from CHI to MT?
Find hourly flight availability from Chicago to Montana. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated March 17, 2026.
Unlike at noon, when flights are generally more expensive, you can save up to 23% on flights from Chicago to Montana by exploring options for tickets in the afternoon.
What is the cheapest day to fly from Chicago to Montana?
Use this chart to determine the cheapest time to fly round-trip from Chicago to Montana. Price data was last updated on March 14, 2026.
Travelers seeking maximum savings on their Chicago to Montana flight should consider departing on Monday afternoons when fares are most often at their lowest. Sunday afternoons flights should be avoided if possible as fares are typically the most expensive at this time.
Weekly flight availability from Chicago to Montana
Explore weekly flight availability from Chicago to Montana. Discover flights operating on different days of the week, giving you the flexibility to choose a travel day that best fits your plans. Compare info to find the most convenient option for your journey. Data last updated March 17, 2026.
The most flights from CHI to USMT are scheduled on a Monday (7 on average). You will have fewer flight options on Saturday, which is when the least amount of flights are scheduled (3 on average).
How much does it cost to fly round-trip from Chicago to Montana?
Reviews of airlines servicing Montana
Get insights into the airlines that provide service to Montana. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Montana. Reviews last updated March 17, 2026.
Get a feel of what it's like to fly with Southwest,Alaska Airlines, andDelta from Chicago to Montana by reading reviews from past customers. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.
Entertainment
7.5
Comfort
8.0
Food
7.0
Crew
8.6
Overall
8.0
Boarding
8.1
Reviews
1 / 20
10.0
ExcellentAnonymous,Mar 2026
KOA - HNL
Entertainment
7.5
Comfort
8.0
Food
7.0
Crew
8.6
Overall
8.0
Boarding
8.1
Reviews
1 / 20
10.0
ExcellentAnonymous,Mar 2026
KOA - HNL
Entertainment
7.5
Comfort
8.0
Food
7.0
Crew
8.6
Overall
8.0
Boarding
8.1
Reviews
1 / 20
10.0
ExcellentAnonymous,Mar 2026
KOA - HNL
Entertainment
7.5
Comfort
8.0
Food
7.0
Crew
8.6
Overall
8.0
Boarding
8.1
Reviews
1 / 20
10.0
ExcellentAnonymous,Mar 2026
KOA - HNL
Entertainment
7.5
Comfort
8.0
Food
7.0
Crew
8.6
Overall
8.0
Boarding
8.1
Reviews
1 / 20
10.0
ExcellentAnonymous,Mar 2026
KOA - HNL
Entertainment
7.5
Comfort
8.0
Food
7.0
Crew
8.6
Overall
8.0
Boarding
8.1
Reviews
1 / 20
10.0
ExcellentAnonymous,Mar 2026
KOA - HNL
Related info for your journey
Find useful and relevant information for your journey from Chicago to Montana. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.
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Alternative routes for Chicago to Montana
See prices for flight routes from nearby airports that may be better suited for you.
Complete your trip
Complete your trip to Montana by adding a car rental and/or hotel reservation to your travel itinerary.
Search flights from Chicago to Montana by cabin class
Find flights from Chicago to Montana, based on your preferred cabin class, be it economy, premium economy, business, or first class.
Chicago and Montana flights
Browse other Chicago and Montana flight options. Last updated on March 17, 2026.
Popular flight searches
Check out other popular destinations found by fellow travelers in 2026
Chicago to Montana flights
Consider these flights traveling from Chicago to Montana.
Top 5 airlines flying from Chicago to Montana
Discover the top 5 airlines that operate flights from Chicago to Montana. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated March 17, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$169 | Average$378 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$210 | Average$374 | FlexibilityNo cancel fee | On-time71% | |
| Cheapest$210 | Average$420 | FlexibilityNo cancel fee | On-time63% | |
| Cheapest$230 | Average$462 | FlexibilityNo cancel fee | On-time69% | |
| Cheapest$291 | Average$552 | FlexibilityNo cancel fee | On-time75% |