$142+ 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 8/3. Fares are subject to change and may not be available on all flights or dates of travel.
CHI — BZN
Jul 24 — Jul 311
Round-trip
1 adult, Economy
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Find cheap flights from Chicago to Montana with Cheapflights
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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 June 24, 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 June 24, 2026.
This Delta deal was found by Cheapflights users on 6/19. 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.
Mon 9/147:45 am
ORD
- GTF
1 stop5h 50m
Delta
Mon 9/215:40 am
GTF
- ORD
1 stop5h 15m
Delta
Deal found 6/19![Delta logo]()
$206
This Delta deal was found by Cheapflights users on 6/19. 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 9/112:00 pm
ORD
- GTF
2 stops9h 42m
Delta
Thu 9/241:15 pm
GTF
- ORD
1 stop7h 32m
Delta
Deal found 6/19![Delta logo]()
$212
This United Airlines deal was found by Cheapflights users on 6/20. 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 9/58:40 am
ORD
- BIL
Nonstop3h 22m
United Airlines
Sat 9/125:00 am
BIL
- ORD
1 stop5h 28m
United Airlines
Deal found 6/20![United Airlines logo]()
$261
This Delta deal was found by Cheapflights users on 6/19. 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 9/47:48 am
ORD
- GTF
1 stop5h 40m
Delta
Mon 9/145:40 am
GTF
- ORD
1 stop5h 15m
Delta
Deal found 6/19![Delta logo]()
$262
This United Airlines deal was found by Cheapflights users on 6/20. 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 8/298:40 am
ORD
- BIL
Nonstop3h 22m
United Airlines
Sat 9/511:43 am
BIL
- ORD
Nonstop3h 05m
United Airlines
Deal found 6/20![United Airlines logo]()
$266
This Delta deal was found by Cheapflights users on 6/19. 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 9/48:28 am
ORD
- GTF
2 stops10h 10m
Delta
Tue 9/151:15 pm
GTF
- ORD
1 stop7h 32m
Delta
Deal found 6/19![Delta logo]()
$268
This United Airlines deal was found by Cheapflights users on 6/23. 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 8/255:00 am
ORD
- BIL
1 stop5h 41m
United Airlines
Tue 9/84:07 pm
BIL
- ORD
1 stop5h 39m
United Airlines
Deal found 6/23![United Airlines logo]()
$271
This Delta deal was found by Cheapflights users on 6/23. 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 8/257:25 pm
MDW
- BIL
1 stop5h 05m
Delta
Tue 9/86:20 am
BIL
- MDW
1 stop6h 00m
Delta
Deal found 6/23![Delta logo]()
$271
This Delta deal was found by Cheapflights users on 6/19. 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 8/2512:29 pm
ORD
- BIL
2 stops10h 56m
Delta
Tue 9/111:51 am
BIL
- ORD
1 stop5h 28m
Delta
Deal found 6/19![Delta logo]()
$276
This United Airlines deal was found by Cheapflights users on 6/20. 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 8/155:51 pm
ORD
- BIL
1 stop6h 00m
United Airlines
Wed 8/194:40 pm
BIL
- ORD
1 stop6h 19m
United Airlines
Deal found 6/20![United Airlines logo]()
$286
This United Airlines deal was found by Cheapflights users on 6/23. 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 8/143:35 pm
ORD
- COD
Nonstop3h 17m
United Airlines
Tue 8/185:53 pm
COD
- ORD
1 stop5h 06m
United Airlines
Deal found 6/23![United Airlines logo]()
$288
This Delta deal was found by Cheapflights users on 6/19. 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 9/137:30 am
ORD
- GTF
1 stop5h 53m
Delta
Tue 9/221:15 pm
GTF
- ORD
1 stop7h 32m
Delta
Deal found 6/19![Delta logo]()
$292
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 June 24, 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 June 24, 2026.
This Delta deal was found by Cheapflights users on 6/19. 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 9/67:48 am
ORD
- GTF
1 stop5h 40m
Delta
Tue 9/155:40 am
GTF
- ORD
2 stops12h 05m
Delta
Deal found 6/19![Delta logo]()
$212
This United Airlines deal was found by Cheapflights users on 6/23. 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 8/155:00 am
ORD
- BIL
1 stop5h 41m
United Airlines
Sat 8/222:29 pm
BIL
- ORD
1 stop6h 23m
United Airlines
Deal found 6/23![United Airlines logo]()
$271
This Southwest deal was found by Cheapflights users on 6/20. 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 9/2010:25 am
MDW
- BZN
Nonstop3h 10m
Southwest
Thu 9/2412:20 pm
BZN
- MDW
Nonstop2h 55m
Southwest
Deal found 6/20![Southwest logo]()
$335
This Alaska Airlines deal was found by Cheapflights users on 6/19. 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.
Sat 9/53:43 pm
ORD
- MSO
1 stop8h 18m
Alaska Airlines
Fri 9/114:16 pm
MSO
- ORD
1 stop6h 43m
Alaska Airlines
Deal found 6/19![Alaska Airlines logo]()
$389
This Sun Country Air deal was found by Cheapflights users on 6/23. 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 Sun Country Air is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 7/106:31 pm
ORD
- FCA
1 stop16h 29m
Sun Country Air
Mon 7/1310:17 am
FCA
- ORD
1 stop6h 12m
Sun Country Air
Deal found 6/23![Sun Country Air logo]()
$425
This Delta deal was found by Cheapflights users on 6/19. 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 9/47:48 am
ORD
- GTF
1 stop5h 40m
Delta
Mon 9/145:40 am
GTF
- ORD
1 stop5h 15m
Delta
Deal found 6/19![Delta logo]()
$262
This United Airlines deal was found by Cheapflights users on 6/23. 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 8/143:35 pm
ORD
- COD
Nonstop3h 17m
United Airlines
Tue 8/185:53 pm
COD
- ORD
1 stop5h 06m
United Airlines
Deal found 6/23![United Airlines logo]()
$288
This Delta deal was found by Cheapflights users on 6/22. 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 8/154:45 pm
ORD
- BIL
1 stop7h 08m
Delta
Sat 8/225:20 am
BIL
- ORD
1 stop5h 39m
Delta
Deal found 6/22![Delta logo]()
$271
This United Airlines deal was found by Cheapflights users on 6/23. 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 8/114:15 pm
ORD
- BZN
Nonstop3h 27m
United Airlines
Tue 8/184:32 pm
BZN
- ORD
1 stop6h 27m
United Airlines
Deal found 6/23![United Airlines logo]()
$295
This Southwest deal was found by Cheapflights users on 6/23. 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 8/103:10 pm
MDW
- BZN
2 stops8h 15m
Southwest
Wed 8/196:55 am
BZN
- MDW
2 stops10h 50m
Southwest
Deal found 6/23![Southwest logo]()
$354
This United Airlines deal was found by Cheapflights users on 6/19. 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.
Sun 8/305:00 am
ORD
- COD
1 stop5h 30m
United Airlines
Sat 9/55:53 pm
COD
- ORD
1 stop5h 06m
United Airlines
Deal found 6/19![United Airlines logo]()
$298
This Delta deal was found by Cheapflights users on 6/20. 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 8/267:25 pm
MDW
- BIL
1 stop5h 05m
Delta
Sun 8/306:26 am
BIL
- MDW
1 stop5h 44m
Delta
Deal found 6/20![Delta logo]()
$302
This Delta deal was found by Cheapflights users on 6/19. 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.
Mon 8/175:57 pm
ORD
- BIL
1 stop6h 33m
Delta
Sat 8/225:20 am
BIL
- ORD
1 stop5h 39m
Delta
Deal found 6/19![Delta logo]()
$302
This United Airlines deal was found by Cheapflights users on 6/19. 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 7/104:15 pm
ORD
- COD
Nonstop3h 30m
United Airlines
Tue 7/145:55 pm
COD
- ORD
1 stop5h 49m
United Airlines
Deal found 6/19![United Airlines logo]()
$313
This Southwest deal was found by Cheapflights users on 6/23. 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.
Tue 8/113:50 pm
MDW
- BZN
1 stop7h 35m
Southwest
Tue 8/1812:55 pm
BZN
- MDW
Nonstop2h 55m
Southwest
Deal found 6/23![Southwest logo]()
$400
This Delta deal was found by Cheapflights users on 6/19. 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 9/116:59 am
ORD
- BZN
1 stop8h 38m
Delta
Mon 9/146:00 am
BZN
- ORD
1 stop4h 55m
Delta
Deal found 6/19![Delta logo]()
$305
This United Airlines deal was found by Cheapflights users on 6/22. 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 8/254:20 pm
ORD
- FCA
1 stop6h 01m
United Airlines
Thu 9/312:33 pm
FCA
- ORD
Nonstop3h 32m
United Airlines
Deal found 6/22![United Airlines logo]()
$319
This Delta deal was found by Cheapflights users on 6/23. 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 9/137:45 am
ORD
- GTF
1 stop5h 50m
Delta
Tue 9/221:15 pm
GTF
- ORD
1 stop7h 37m
Delta
Deal found 6/23![Delta logo]()
$306
This Alaska Airlines deal was found by Cheapflights users on 6/21. 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 9/103:52 pm
ORD
- MSO
1 stop8h 09m
Alaska Airlines
Sun 9/137:00 am
MSO
- ORD
1 stop22h 20m
Alaska Airlines
Deal found 6/21![Alaska Airlines logo]()
$496
This Southwest deal was found by Cheapflights users on 6/20. 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 7/2011:00 am
MDW
- BZN
Nonstop3h 10m
Southwest
Wed 7/297:00 pm
BZN
- MDW
1 stop9h 25m
Southwest
Deal found 6/20![Southwest logo]()
$424
This United Airlines deal was found by Cheapflights users on 6/22. 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 7/215:00 am
ORD
- BIL
1 stop5h 36m
United Airlines
Tue 7/286:00 pm
BIL
- ORD
1 stop5h 44m
United Airlines
Deal found 6/22![United Airlines logo]()
$319
This Delta deal was found by Cheapflights users on 6/23. 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 9/137:45 am
ORD
- GTF
1 stop5h 50m
Delta
Sat 9/195:40 am
GTF
- ORD
1 stop5h 15m
Delta
Deal found 6/23![Delta logo]()
$306
This Southwest deal was found by Cheapflights users on 6/23. 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 7/226:40 pm
MDW
- BZN
1 stop7h 10m
Southwest
Mon 7/277:15 pm
BZN
- MDW
1 stop9h 10m
Southwest
Deal found 6/23![Southwest logo]()
$434
This United Airlines deal was found by Cheapflights users on 6/20. 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 8/265:00 am
ORD
- BIL
1 stop5h 41m
United Airlines
Sun 8/304:40 pm
BIL
- ORD
1 stop6h 21m
United Airlines
Deal found 6/20![United Airlines logo]()
$331
This Delta deal was found by Cheapflights users on 6/19. 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.
Mon 8/105:57 pm
ORD
- BZN
2 stops7h 07m
Delta
Sat 8/156:00 am
BZN
- ORD
1 stop4h 59m
Delta
Deal found 6/19![Delta logo]()
$310
This Southwest deal was found by Cheapflights users on 6/23. 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 7/114:50 pm
MDW
- BZN
1 stop7h 05m
Southwest
Tue 7/146:40 am
BZN
- MDW
Nonstop2h 50m
Southwest
Deal found 6/23![Southwest logo]()
$435
This Delta deal was found by Cheapflights users on 6/23. 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 8/191:59 pm
ORD
- BZN
2 stops10h 17m
Delta
Sat 8/226:00 am
BZN
- ORD
1 stop4h 59m
Delta
Deal found 6/23![Delta logo]()
$310
This United Airlines deal was found by Cheapflights users on 6/23. 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.
Sun 8/98:15 pm
ORD
- BZN
Nonstop3h 28m
United Airlines
Fri 8/144:30 pm
BZN
- ORD
Nonstop3h 07m
United Airlines
Deal found 6/23![United Airlines logo]()
$357
This Southwest deal was found by Cheapflights users on 6/23. 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 9/96:00 pm
MDW
- BZN
1 stop5h 25m
Southwest
Mon 9/1412:20 pm
BZN
- MDW
Nonstop2h 55m
Southwest
Deal found 6/23![Southwest logo]()
$451
This Delta deal was found by Cheapflights users on 6/21. 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 7/2812:27 pm
ORD
- BZN
2 stops11h 22m
Delta
Fri 7/313:54 pm
BZN
- ORD
1 stop6h 44m
Delta
Deal found 6/21![Delta logo]()
$310
Last-minute flights from Chicago to MontanaDiscover last-minute flight deals from Chicago to Montana. Data last updated June 24, 2026 and is based on user searches.
Discover last-minute flight deals from Chicago to Montana. Data last updated June 24, 2026 and is based on user searches.
This United Airlines deal was found by Cheapflights users on 6/19. 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 7/186:00 am
ORD
- BZN
1 stop8h 20m
United Airlines
Tue 7/214:24 pm
BZN
- ORD
Nonstop3h 16m
United Airlines
Deal found 6/19![United Airlines logo]()
$323
This Delta deal was found by Cheapflights users on 6/19. 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 7/1812:46 pm
ORD
- BZN
1 stop7h 58m
Delta
Tue 7/2112:13 pm
BZN
- ORD
1 stop5h 44m
Delta
Deal found 6/19![Delta logo]()
$333
This United Airlines deal was found by Cheapflights users on 6/22. 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 7/215:00 am
ORD
- BIL
1 stop5h 36m
United Airlines
Tue 7/286:00 pm
BIL
- ORD
1 stop5h 44m
United Airlines
Deal found 6/22![United Airlines logo]()
$319
This United Airlines deal was found by Cheapflights users on 6/23. 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 7/235:00 am
ORD
- COD
1 stop5h 28m
United Airlines
Thu 7/305:55 pm
COD
- ORD
1 stop5h 49m
United Airlines
Deal found 6/23![United Airlines logo]()
$298
This Delta deal was found by Cheapflights users on 6/21. 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 7/258:27 am
ORD
- BZN
1 stop7h 23m
Delta
Fri 7/313:54 pm
BZN
- ORD
1 stop6h 44m
Delta
Deal found 6/21![Delta logo]()
$332
This United Airlines deal was found by Cheapflights users on 6/21. 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.
Sun 7/268:15 pm
ORD
- BZN
Nonstop3h 28m
United Airlines
Thu 7/304:24 pm
BZN
- ORD
Nonstop3h 16m
United Airlines
Deal found 6/21![United Airlines logo]()
$325
This Delta deal was found by Cheapflights users on 6/21. 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.
Mon 7/279:54 am
MDW
- BZN
1 stop5h 53m
Delta
Sat 8/811:27 am
BZN
- MDW
1 stop5h 34m
Delta
Deal found 6/21![Delta logo]()
$332
This American Airlines deal was found by Cheapflights users on 6/23. 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 7/285:00 am
ORD
- BZN
1 stop6h 47m
American Airlines
Fri 7/315:03 pm
BZN
- ORD
Nonstop3h 27m
American Airlines
Deal found 6/23![American Airlines logo]()
$295
This Delta deal was found by Cheapflights users on 6/22. 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 7/287:40 pm
ORD
- BZN
1 stop5h 43m
Delta
Thu 8/63:49 pm
BZN
- ORD
1 stop6h 40m
Delta
Deal found 6/22![Delta logo]()
$305
This Delta deal was found by Cheapflights users on 6/21. 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 7/289:54 am
MDW
- BZN
1 stop5h 53m
Delta
Sat 8/811:27 am
BZN
- MDW
1 stop5h 34m
Delta
Deal found 6/21![Delta logo]()
$305
This Kiwi.com deal was found by Cheapflights users on 6/21. 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 7/289:57 pm
ORD
- BZN
2 stops22h 44m
Multiple Airlines
Thu 8/64:51 pm
BZN
- ORD
1 stop11h 46m
Multiple Airlines
Deal found 6/21![Multiple Airlines logo]()
$324
This American Airlines deal was found by Cheapflights users on 6/21. 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 7/311:49 pm
ORD
- BZN
Nonstop3h 24m
American Airlines
Sun 8/25:03 pm
BZN
- ORD
Nonstop3h 27m
American Airlines
Deal found 6/21![American Airlines logo]()
$322
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 June 24, 2026.
Search for one-way flight options from Chicago to Montana. Find affordable one-way fares based on user searches. Data last updated June 24, 2026.
This American Airlines deal was found by Cheapflights users on 6/19. 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 8/31:49 pm
ORD
- BZN
Nonstop3h 24m
American Airlines
Deal found 6/19![American Airlines logo]()
$142
This United Airlines deal was found by Cheapflights users on 6/19. 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.
Mon 7/278:15 pm
ORD
- BZN
Nonstop3h 28m
United Airlines
Deal found 6/19![United Airlines logo]()
$143
This American Airlines deal was found by Cheapflights users on 6/24. 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 7/271:49 pm
ORD
- BZN
Nonstop3h 24m
American Airlines
Deal found 6/24![American Airlines logo]()
$145
This Kiwi.com deal was found by Cheapflights users on 6/21. 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 8/199:10 am
ORD
- MSO
2 stops36h 52m
Multiple Airlines
Deal found 6/21![Multiple Airlines logo]()
$150
This American Airlines deal was found by Cheapflights users on 6/23. 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 9/1612:09 pm
ORD
- BZN
1 stop9h 34m
American Airlines
Deal found 6/23![American Airlines logo]()
$152
This Delta deal was found by Cheapflights users on 6/24. 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.
Mon 7/276:55 am
ORD
- BZN
1 stop8h 40m
Delta
Deal found 6/24![Delta logo]()
$153
This Delta deal was found by Cheapflights users on 6/23. 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 8/137:25 pm
MDW
- BZN
1 stop4h 51m
Delta
Deal found 6/23![Delta logo]()
$153
This Kiwi.com deal was found by Cheapflights users on 6/19. 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 8/87:15 am
ORD
- MSO
1 stop27h 19m
Multiple Airlines
Deal found 6/19![Multiple Airlines logo]()
$154
This Delta deal was found by Cheapflights users on 6/24. 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 8/191:50 pm
ORD
- BZN
2 stops10h 26m
Delta
Deal found 6/24![Delta logo]()
$158
This Delta deal was found by Cheapflights users on 6/23. 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 8/211:25 pm
MDW
- BZN
2 stops11h 39m
Delta
Deal found 6/23![Delta logo]()
$158
This United Airlines deal was found by Cheapflights users on 6/22. 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 7/258:15 pm
ORD
- BZN
Nonstop3h 28m
United Airlines
Deal found 6/22![United Airlines logo]()
$159
This United Airlines deal was found by Cheapflights users on 6/21. 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 9/125:30 pm
ORD
- BZN
Nonstop3h 27m
United Airlines
Deal found 6/21![United Airlines logo]()
$164
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 June 24, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $206 (Delta) |
One-way from | $142 (American Airlines) |
Popular in | March |
Cheapest in | April |
Average price | $331 |
Good round-trip deal | $374 or less |
Good one-way deal | $192 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 June 24, 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
ChicagoGreat Falls
ORD - GTF
ORDGTF
Chicago O'Hare Intl
Sun 9/6
7:48 am-12:28 pm
1 stop5h 40m
Great Falls
Tue 9/15
5:40 am-6:45 pm
2 stops12h 05m
$212
ChicagoGreat Falls
ORD - GTF
ORDGTF
Chicago O'Hare Intl
Fri 9/4
7:48 am-12:28 pm
1 stop5h 40m
Great Falls
Mon 9/14
5:40 am-11:55 am
1 stop5h 15m
$262
ChicagoBillings
ORD - BIL
ORDBIL
Chicago O'Hare Intl
Sat 8/15
5:00 am-9:41 am
1 stop5h 41m
Billings Logan Intl
Sat 8/22
2:29 pm-9:52 pm
1 stop6h 23m
$271
ChicagoBillings
ORD - BIL
ORDBIL
Chicago O'Hare Intl
Sat 8/15
4:45 pm-10:53 pm
1 stop7h 08m
Billings Logan Intl
Sat 8/22
5:20 am-11:59 am
1 stop5h 39m
$271
ChicagoCody
ORD - COD
ORDCOD
Chicago O'Hare Intl
Fri 8/14
3:35 pm-5:52 pm
Nonstop3h 17m
Cody E.E. Faust
Tue 8/18
5:53 pm-11:59 pm
1 stop5h 06m
$288
ChicagoBozeman
ORD - BZN
ORDBZN
Chicago O'Hare Intl
Tue 8/11
4:15 pm-6:42 pm
Nonstop3h 27m
Bozeman Gallatin Field
Tue 8/18
4:32 pm-11:59 pm
1 stop6h 27m
$295
ChicagoCody
ORD - COD
ORDCOD
Chicago O'Hare Intl
Sun 8/30
5:00 am-9:30 am
1 stop5h 30m
Cody E.E. Faust
Sat 9/5
5:53 pm-11:59 pm
1 stop5h 06m
$298
ChicagoBillings
MDW - BIL
MDWBIL
Chicago Midway
Wed 8/26
7:25 pm-11:30 pm
1 stop5h 05m
Billings Logan Intl
Sun 8/30
6:26 am-1:10 pm
1 stop5h 44m
$302
ChicagoBillings
ORD - BIL
ORDBIL
Chicago O'Hare Intl
Mon 8/17
5:57 pm-11:30 pm
1 stop6h 33m
Billings Logan Intl
Sat 8/22
5:20 am-11:59 am
1 stop5h 39m
$302
ChicagoBozeman
ORD - BZN
ORDBZN
Chicago O'Hare Intl
Fri 9/11
6:59 am-2:37 pm
1 stop8h 38m
Bozeman Gallatin Field
Mon 9/14
6:00 am-11:55 am
1 stop4h 55m
$305
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-GTF
ORD-BIL
MDW-BZN
ORD-MSO
ORD-FCA
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-GTF
ORD-BIL
MDW-BZN
ORD-MSO
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 $133). Flying from Chicago to Montana in July is currently the most expensive (average of $714). 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 June 24, 2026.
Unlike at noon, when flights are generally more expensive, you can save up to 32% on flights from Chicago to Montana by exploring options for tickets in the afternoon.
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 June 24, 2026.
The most flights from CHI to USMT are scheduled on a Wednesday (10 on average). You will have fewer flight options on Saturday, which is when the least amount of flights are scheduled (4 on average).
How much does it cost to fly round-trip from Chicago to Montana?
How far ahead should I book a flight from Chicago to Montana?
The best time to book flights from Chicago to Montana is 60 days before your desired departure date. The cost of your flight will likely increase significantly if you book two weeks in advance of your flight.
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 June 20, 2026.
Travelers seeking maximum savings on their Chicago to Montana flight should consider departing on Monday evenings when fares are most often at their lowest. Tuesday afternoons flights should be avoided if possible as fares are typically the most expensive at this time.
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 June 24, 2026.
Get a feel of what it's like to fly with Alaska Airlines,Southwest, 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.
Overall
7.9
Food
7.0
Comfort
7.8
Boarding
8.1
Crew
8.5
Entertainment
7.0
Reviews
1 / 20
4.0
OkayAnonymous,Jun 2026
SEA - RNO
Overall
7.9
Food
7.0
Comfort
7.8
Boarding
8.1
Crew
8.5
Entertainment
7.0
Reviews
1 / 20
4.0
OkayAnonymous,Jun 2026
SEA - RNO
Overall
7.9
Food
7.0
Comfort
7.8
Boarding
8.1
Crew
8.5
Entertainment
7.0
Reviews
1 / 20
4.0
OkayAnonymous,Jun 2026
SEA - RNO
Overall
7.9
Food
7.0
Comfort
7.8
Boarding
8.1
Crew
8.5
Entertainment
7.0
Reviews
1 / 20
4.0
OkayAnonymous,Jun 2026
SEA - RNO
Overall
7.9
Food
7.0
Comfort
7.8
Boarding
8.1
Crew
8.5
Entertainment
7.0
Reviews
1 / 20
4.0
OkayAnonymous,Jun 2026
SEA - RNO
Overall
7.9
Food
7.0
Comfort
7.8
Boarding
8.1
Crew
8.5
Entertainment
7.0
Reviews
1 / 20
4.0
OkayAnonymous,Jun 2026
SEA - RNO
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.
Browse thousands of different options on Cheapflights for your next trip
Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.
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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 June 24, 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 June 24, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$210 | Average$440 | FlexibilityNo cancel fee | On-time63% | |
| Cheapest$216 | Average$364 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$218 | Average$429 | FlexibilityNo cancel fee | On-time71% | |
| Cheapest$226 | Average$513 | FlexibilityNo cancel fee | On-time75% | |
| Cheapest$239 | Average$416 | FlexibilityNo cancel fee | On-time69% |