$114+ Cheap flights from Ontario (ONT) 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 9/17. Fares are subject to change and may not be available on all flights or dates of travel.
ONT — BZN
Aug 17 — Aug 241
Round-trip
1 adult, Economy
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Cheapest flights from Ontario to MontanaExplore the most affordable flight options available from Ontario to Montana. Find the lowest fares from popular airlines and budget airlines, with prices last updated on July 18, 2026.
Explore the most affordable flight options available from Ontario to Montana. Find the lowest fares from popular airlines and budget airlines, with prices last updated on July 18, 2026.
This Kiwi.com deal was found by Cheapflights users on 7/14. 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.
Thu 11/59:43 pm
ONT
- FCA
1 stop18h 20m
Multiple Airlines
Mon 11/98:18 pm
FCA
- ONT
1 stop20h 52m
Multiple Airlines
Deal found 7/14![Multiple Airlines logo]()
$251
This Kiwi.com deal was found by Cheapflights users on 7/17. 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.
Mon 8/2411:50 am
ONT
- BIL
1 stop7h 18m
Multiple Airlines
Mon 8/319:57 pm
BIL
- ONT
2 stops17h 06m
Multiple Airlines
Deal found 7/17![Multiple Airlines logo]()
$271
This Alaska Airlines deal was found by Cheapflights users on 7/13. 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.
Sat 10/1011:13 am
ONT
- FCA
1 stop6h 52m
Alaska Airlines
Thu 10/157:45 pm
FCA
- ONT
1 stop5h 00m
Alaska Airlines
Deal found 7/13![Alaska Airlines logo]()
$277
This Kiwi.com deal was found by Cheapflights users on 7/13. 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.
Thu 8/203:40 pm
ONT
- FCA
1 stop17h 24m
Multiple Airlines
Mon 8/243:39 pm
FCA
- ONT
1 stop6h 48m
Multiple Airlines
Deal found 7/13![Multiple Airlines logo]()
$285
This Kiwi.com deal was found by Cheapflights users on 7/14. 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.
Sat 8/84:09 pm
ONT
- BZN
1 stop22h 52m
Multiple Airlines
Thu 8/134:51 pm
BZN
- ONT
1 stop16h 12m
Multiple Airlines
Deal found 7/14![Multiple Airlines logo]()
$290
This Delta deal was found by Cheapflights users on 7/12. 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 8/126:00 am
ONT
- WYS
1 stop5h 27m
Delta
Tue 8/181:09 pm
WYS
- ONT
1 stop4h 15m
Delta
Deal found 7/12![Delta logo]()
$294
This Kiwi.com deal was found by Cheapflights users on 7/14. 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.
Thu 9/172:58 pm
ONT
- BZN
1 stop4h 54m
Multiple Airlines
Thu 9/249:42 pm
BZN
- ONT
1 stop13h 39m
Multiple Airlines
Deal found 7/14![Multiple Airlines logo]()
$295
This Kiwi.com deal was found by Cheapflights users on 7/13. 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.
Wed 8/125:08 pm
ONT
- BZN
1 stop21h 53m
Multiple Airlines
Sun 8/164:51 pm
BZN
- ONT
1 stop16h 12m
Multiple Airlines
Deal found 7/13![Multiple Airlines logo]()
$304
This Delta deal was found by Cheapflights users on 7/15. 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.
Sat 8/86:00 am
ONT
- WYS
1 stop3h 46m
Delta
Thu 8/131:09 pm
WYS
- ONT
1 stop4h 15m
Delta
Deal found 7/15![Delta logo]()
$308
This Delta deal was found by Cheapflights users on 7/14. 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.
Fri 9/255:15 pm
ONT
- BZN
1 stop6h 00m
Delta
Fri 10/26:00 am
BZN
- ONT
1 stop4h 02m
Delta
Deal found 7/14![Delta logo]()
$311
This Delta deal was found by Cheapflights users on 7/17. 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 8/96:00 am
ONT
- FCA
1 stop4h 09m
Delta
Thu 8/1312:02 pm
FCA
- ONT
1 stop5h 22m
Delta
Deal found 7/17![Delta logo]()
$311
This Kiwi.com deal was found by Cheapflights users on 7/14. 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.
Thu 8/1310:49 am
ONT
- MSO
2 stops25h 12m
Multiple Airlines
Sun 8/1610:24 am
MSO
- ONT
1 stop22h 39m
Multiple Airlines
Deal found 7/14![Multiple Airlines logo]()
$315
Best flights from Ontario to MontanaDiscover carefully curated flight deals from Ontario to Montana that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated July 18, 2026.
Discover carefully curated flight deals from Ontario to Montana that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated July 18, 2026.
This Alaska Airlines deal was found by Cheapflights users on 7/13. 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.
Sat 10/1011:13 am
ONT
- FCA
1 stop6h 52m
Alaska Airlines
Thu 10/157:45 pm
FCA
- ONT
1 stop5h 00m
Alaska Airlines
Deal found 7/13![Alaska Airlines logo]()
$277
This Delta deal was found by Cheapflights users on 7/17. 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 8/225:05 pm
ONT
- BZN
1 stop3h 58m
Delta
Mon 8/246:00 am
BZN
- ONT
1 stop3h 52m
Delta
Deal found 7/17![Delta logo]()
$311
This Southwest deal was found by Cheapflights users on 7/16. 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.
Fri 9/255:45 pm
ONT
- BZN
1 stop4h 55m
Southwest
Tue 9/296:55 am
BZN
- ONT
1 stop6h 45m
Southwest
Deal found 7/16![Southwest logo]()
$311
This United Airlines deal was found by Cheapflights users on 7/13. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 8/125:00 am
ONT
- FCA
1 stop7h 29m
United Airlines
Wed 8/197:15 am
FCA
- ONT
1 stop5h 57m
United Airlines
Deal found 7/13![United Airlines logo]()
$357
This Priceline deal was found by Cheapflights users on 7/15. 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 Priceline is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 8/287:12 am
ONT
- SDY
2 stops11h 36m
Multiple Airlines
Wed 9/309:45 am
SDY
- ONT
2 stops10h 18m
Multiple Airlines
Deal found 7/15![Multiple Airlines logo]()
$563
This Delta deal was found by Cheapflights users on 7/14. 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 9/235:15 pm
ONT
- BZN
1 stop6h 00m
Delta
Thu 10/16:36 pm
BZN
- ONT
1 stop6h 11m
Delta
Deal found 7/14![Delta logo]()
$311
This Alaska Airlines deal was found by Cheapflights users on 7/13. 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.
Wed 10/217:23 am
ONT
- BZN
1 stop4h 59m
Alaska Airlines
Sat 10/2411:16 am
BZN
- ONT
1 stop7h 47m
Alaska Airlines
Deal found 7/13![Alaska Airlines logo]()
$311
This Delta deal was found by Cheapflights users on 7/13. 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.
Tue 7/285:10 pm
ONT
- BZN
1 stop6h 13m
Delta
Fri 7/315:15 am
BZN
- ONT
1 stop4h 32m
Delta
Deal found 7/13![Delta logo]()
$311
This Alaska Airlines deal was found by Cheapflights users on 7/14. 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.
Tue 8/253:07 pm
ONT
- BZN
1 stop6h 52m
Alaska Airlines
Sat 8/293:35 pm
BZN
- ONT
1 stop5h 49m
Alaska Airlines
Deal found 7/14![Alaska Airlines logo]()
$311
This Delta deal was found by Cheapflights users on 7/13. 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.
Tue 10/139:45 am
ONT
- BZN
1 stop7h 13m
Delta
Tue 10/201:10 pm
BZN
- ONT
1 stop4h 14m
Delta
Deal found 7/13![Delta logo]()
$311
This United Airlines deal was found by Cheapflights users on 7/12. 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 9/11:18 pm
ONT
- COD
1 stop8h 27m
United Airlines
Sat 9/55:00 am
COD
- ONT
2 stops11h 41m
United Airlines
Deal found 7/12![United Airlines logo]()
$384
This Alaska Airlines deal was found by Cheapflights users on 7/16. 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.
Sat 10/104:42 pm
ONT
- BZN
1 stop23h 21m
Alaska Airlines
Sat 10/178:00 am
BZN
- ONT
1 stop6h 21m
Alaska Airlines
Deal found 7/16![Alaska Airlines logo]()
$327
This Delta deal was found by Cheapflights users on 7/14. 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 9/245:15 pm
ONT
- BZN
1 stop6h 00m
Delta
Mon 9/286:00 am
BZN
- ONT
1 stop4h 02m
Delta
Deal found 7/14![Delta logo]()
$311
This Alaska Airlines deal was found by Cheapflights users on 7/16. 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.
Mon 8/2412:00 pm
ONT
- BZN
1 stop9h 59m
Alaska Airlines
Mon 8/313:35 pm
BZN
- ONT
1 stop5h 49m
Alaska Airlines
Deal found 7/16![Alaska Airlines logo]()
$339
This United Airlines deal was found by Cheapflights users on 7/15. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 8/291:18 pm
ONT
- BIL
1 stop6h 42m
United Airlines
Sun 9/65:07 am
BIL
- ONT
2 stops8h 05m
United Airlines
Deal found 7/15![United Airlines logo]()
$414
This Delta deal was found by Cheapflights users on 7/15. 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.
Fri 8/145:05 pm
ONT
- HLN
1 stop4h 25m
Delta
Fri 8/215:40 am
HLN
- ONT
1 stop4h 12m
Delta
Deal found 7/15![Delta logo]()
$338
This Alaska Airlines deal was found by Cheapflights users on 7/14. 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.
Fri 8/283:07 pm
ONT
- BZN
1 stop6h 52m
Alaska Airlines
Mon 8/313:35 pm
BZN
- ONT
1 stop5h 49m
Alaska Airlines
Deal found 7/14![Alaska Airlines logo]()
$339
This United Airlines deal was found by Cheapflights users on 7/16. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 8/305:00 am
ONT
- MSO
1 stop7h 38m
United Airlines
Wed 9/24:11 pm
MSO
- ONT
1 stop4h 50m
United Airlines
Deal found 7/16![United Airlines logo]()
$419
This United Airlines deal was found by Cheapflights users on 7/15. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/185:00 am
ONT
- WYS
1 stop7h 20m
United Airlines
Tue 9/221:55 pm
WYS
- ONT
1 stop7h 58m
United Airlines
Deal found 7/15![United Airlines logo]()
$420
This Delta deal was found by Cheapflights users on 7/18. 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 8/155:05 pm
ONT
- HLN
1 stop4h 25m
Delta
Fri 8/215:40 am
HLN
- ONT
1 stop4h 12m
Delta
Deal found 7/18![Delta logo]()
$353
This Alaska Airlines deal was found by Cheapflights users on 7/13. 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.
Wed 9/97:12 am
ONT
- BIL
1 stop6h 50m
Alaska Airlines
Sat 9/126:14 am
BIL
- ONT
2 stops12h 04m
Alaska Airlines
Deal found 7/13![Alaska Airlines logo]()
$367
This United deal was found by Cheapflights users on 7/16. 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 United is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/41:18 pm
ONT
- SDY
2 stops26h 18m
Multiple Airlines
Mon 9/72:55 pm
SDY
- ONT
2 stops22h 55m
Multiple Airlines
Deal found 7/16![Multiple Airlines logo]()
$598
This Delta deal was found by Cheapflights users on 7/17. 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 8/185:05 pm
ONT
- BIL
1 stop4h 20m
Delta
Sun 8/235:20 am
BIL
- ONT
1 stop4h 32m
Delta
Deal found 7/17![Delta logo]()
$361
This Booking.com deal was found by Cheapflights users on 7/13. 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 Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 8/166:02 am
ONT
- HLN
1 stop9h 30m
Alaska Airlines
Tue 8/255:11 pm
HLN
- ONT
1 stop18h 53m
Alaska Airlines
Deal found 7/13![Alaska Airlines logo]()
$369
This United Airlines deal was found by Cheapflights users on 7/14. 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.
Fri 8/71:18 pm
ONT
- COD
1 stop8h 25m
United Airlines
Sun 8/95:55 pm
COD
- ONT
2 stops29h 42m
United Airlines
Deal found 7/14![United Airlines logo]()
$462
This Alaska Airlines deal was found by Cheapflights users on 7/16. 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.
Sat 12/54:00 pm
ONT
- BIL
1 stop7h 08m
Alaska Airlines
Wed 12/96:00 am
BIL
- ONT
1 stop6h 09m
Alaska Airlines
Deal found 7/16![Alaska Airlines logo]()
$384
This Delta deal was found by Cheapflights users on 7/15. 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 8/116:00 am
ONT
- HLN
1 stop5h 15m
Delta
Thu 8/205:40 am
HLN
- ONT
2 stops18h 05m
Delta
Deal found 7/15![Delta logo]()
$391
This United Airlines deal was found by Cheapflights users on 7/15. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 8/55:00 am
ONT
- WYS
1 stop7h 32m
United Airlines
Mon 8/171:55 pm
WYS
- ONT
1 stop7h 58m
United Airlines
Deal found 7/15![United Airlines logo]()
$483
This Booking.com deal was found by Cheapflights users on 7/14. 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 Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 9/207:59 pm
ONT
- BIL
1 stop14h 41m
Alaska Airlines
Thu 9/247:29 pm
BIL
- ONT
1 stop16h 47m
Alaska Airlines
Deal found 7/14![Alaska Airlines logo]()
$386
This Delta deal was found by Cheapflights users on 7/15. 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.
Mon 8/105:05 pm
ONT
- HLN
1 stop4h 25m
Delta
Tue 8/1812:55 pm
HLN
- ONT
2 stops10h 50m
Delta
Deal found 7/15![Delta logo]()
$409
Last-minute flights from Ontario to MontanaDiscover last-minute flight deals from Ontario to Montana. Data last updated July 18, 2026 and is based on user searches.
Discover last-minute flight deals from Ontario to Montana. Data last updated July 18, 2026 and is based on user searches.
This Kiwi.com deal was found by Cheapflights users on 7/14. 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.
Sat 8/84:09 pm
ONT
- BZN
1 stop22h 52m
Multiple Airlines
Thu 8/134:51 pm
BZN
- ONT
1 stop16h 12m
Multiple Airlines
Deal found 7/14![Multiple Airlines logo]()
$290
This Delta deal was found by Cheapflights users on 7/15. 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.
Sat 8/86:00 am
ONT
- WYS
1 stop3h 46m
Delta
Thu 8/131:09 pm
WYS
- ONT
1 stop4h 15m
Delta
Deal found 7/15![Delta logo]()
$308
This Delta deal was found by Cheapflights users on 7/17. 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 8/96:00 am
ONT
- FCA
1 stop4h 09m
Delta
Thu 8/1312:02 pm
FCA
- ONT
1 stop5h 22m
Delta
Deal found 7/17![Delta logo]()
$311
This Delta deal was found by Cheapflights users on 7/15. 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.
Sun 8/96:00 am
ONT
- HLN
1 stop5h 15m
Delta
Thu 8/205:40 am
HLN
- ONT
1 stop4h 12m
Delta
Deal found 7/15![Delta logo]()
$319
This Delta deal was found by Cheapflights users on 7/16. 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 8/116:00 am
ONT
- FCA
1 stop4h 09m
Delta
Tue 8/255:15 am
FCA
- ONT
1 stop4h 37m
Delta
Deal found 7/16![Delta logo]()
$277
This Kiwi.com deal was found by Cheapflights users on 7/13. 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.
Wed 8/125:08 pm
ONT
- BZN
1 stop21h 53m
Multiple Airlines
Sun 8/164:51 pm
BZN
- ONT
1 stop16h 12m
Multiple Airlines
Deal found 7/13![Multiple Airlines logo]()
$304
This Kiwi.com deal was found by Cheapflights users on 7/14. 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.
Thu 8/1310:49 am
ONT
- MSO
2 stops25h 12m
Multiple Airlines
Sun 8/1610:24 am
MSO
- ONT
1 stop22h 39m
Multiple Airlines
Deal found 7/14![Multiple Airlines logo]()
$315
This Delta deal was found by Cheapflights users on 7/14. 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.
Sat 8/155:05 pm
ONT
- BZN
1 stop3h 58m
Delta
Fri 8/216:00 am
BZN
- ONT
1 stop3h 52m
Delta
Deal found 7/14![Delta logo]()
$311
This Southwest deal was found by Cheapflights users on 7/13. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/175:45 pm
ONT
- BZN
1 stop4h 55m
Southwest
Tue 8/256:55 am
BZN
- ONT
2 stops7h 40m
Southwest
Deal found 7/13![Southwest logo]()
$316
This Kiwi.com deal was found by Cheapflights users on 7/13. 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.
Thu 8/203:40 pm
ONT
- FCA
1 stop17h 24m
Multiple Airlines
Mon 8/243:39 pm
FCA
- ONT
1 stop6h 48m
Multiple Airlines
Deal found 7/13![Multiple Airlines logo]()
$285
This Kiwi.com deal was found by Cheapflights users on 7/17. 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.
Mon 8/2411:50 am
ONT
- BIL
1 stop7h 18m
Multiple Airlines
Mon 8/319:57 pm
BIL
- ONT
2 stops17h 06m
Multiple Airlines
Deal found 7/17![Multiple Airlines logo]()
$271
This Kiwi.com deal was found by Cheapflights users on 7/16. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 8/273:40 pm
ONT
- BZN
2 stops16h 56m
Multiple Airlines
Sun 8/309:06 pm
BZN
- ONT
1 stop11h 57m
Multiple Airlines
Deal found 7/16![Multiple Airlines logo]()
$323
One-way flights from Ontario to MontanaSearch for one-way flight options from Ontario to Montana. Find affordable one-way fares based on user searches. Data last updated July 18, 2026.
Search for one-way flight options from Ontario to Montana. Find affordable one-way fares based on user searches. Data last updated July 18, 2026.
This WAYA deal was found by Cheapflights users on 7/13. 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 WAYA is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/1711:16 am
ONT
- BZN
1 stop8h 36m
Multiple Airlines
Deal found 7/13![Multiple Airlines logo]()
$114
This Kiwi.com deal was found by Cheapflights users on 7/16. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/242:58 pm
ONT
- BZN
1 stop4h 54m
Multiple Airlines
Deal found 7/16![Multiple Airlines logo]()
$124
This Trip.com deal was found by Cheapflights users on 7/16. 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 Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 8/273:40 pm
ONT
- FCA
1 stop17h 24m
Multiple Airlines
Deal found 7/16![Multiple Airlines logo]()
$131
This Kiwi.com deal was found by Cheapflights users on 7/17. 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 9/129:49 pm
ONT
- BZN
1 stop22h 03m
Multiple Airlines
Deal found 7/17![Multiple Airlines logo]()
$134
This Alaska Airlines deal was found by Cheapflights users on 7/14. 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.
Tue 9/153:14 pm
ONT
- FCA
1 stop6h 42m
Alaska Airlines
Deal found 7/14![Alaska Airlines logo]()
$139
This Trip.com deal was found by Cheapflights users on 7/18. 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.
Thu 8/134:09 pm
ONT
- FCA
1 stop16h 31m
Multiple Airlines
Deal found 7/18![Multiple Airlines logo]()
$142
This Alaska Airlines deal was found by Cheapflights users on 7/12. 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.
Tue 8/253:07 pm
ONT
- BZN
1 stop6h 52m
Alaska Airlines
Deal found 7/12![Alaska Airlines logo]()
$156
This Alaska Airlines deal was found by Cheapflights users on 7/14. 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.
Tue 8/186:02 am
ONT
- BIL
1 stop6h 03m
Alaska Airlines
Deal found 7/14![Alaska Airlines logo]()
$156
This Delta deal was found by Cheapflights users on 7/14. 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.
Sun 8/96:00 am
ONT
- FCA
1 stop4h 09m
Delta
Deal found 7/14![Delta logo]()
$157
This United Airlines deal was found by Cheapflights users on 7/15. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 9/121:18 pm
ONT
- HLN
1 stop7h 12m
United Airlines
Deal found 7/15![United Airlines logo]()
$160
This Booking.com deal was found by Cheapflights users on 7/12. 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 Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/217:59 pm
ONT
- BZN
1 stop12h 55m
Alaska Airlines
Deal found 7/12![Alaska Airlines logo]()
$161
This Booking.com deal was found by Cheapflights users on 7/14. 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 Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 8/256:05 pm
ONT
- BIL
1 stop19h 57m
Alaska Airlines
Deal found 7/14![Alaska Airlines logo]()
$161
Find flight deals from Ontario to Montana
Keep the following information in mind while searching for Ontario to Montana flight deals. Data was last updated July 18, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $251 (Kiwi.com) |
One-way from | $114 (WAYA) |
Popular in | July |
Cheapest in | January |
Average price | $411 |
Cheapflights Fare Finder
Customize your flight search to find flights from Ontario 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 July 18, 2026.
Use the filters below to find and compare flights from Ontario to Montana that are best for you.
Fly from
Fly to
Route
Depart
Return
Cheapest round-trip
OntarioKalispell
ONT - FCA
ONTFCA
Ontario
Sat 10/10
11:13 am-7:05 pm
1 stop6h 52m
Kalispell Glacier Park
Thu 10/15
7:45 pm-11:45 pm
1 stop5h 00m
$277
Quickest round-trip
OntarioBozeman
ONT - BZN
ONTBZN
Ontario
Sat 8/22
5:05 pm-10:03 pm
1 stop3h 58m
Bozeman Gallatin Field
Mon 8/24
6:00 am-8:52 am
1 stop3h 52m
$311
OntarioBozeman
ONT - BZN
ONTBZN
Ontario
Fri 9/25
5:45 pm-11:40 pm
1 stop4h 55m
Bozeman Gallatin Field
Tue 9/29
6:55 am-12:40 pm
1 stop6h 45m
$311
OntarioBozeman
ONT - BZN
ONTBZN
Ontario
Wed 9/23
5:15 pm-12:15 am
1 stop6h 00m
Bozeman Gallatin Field
Thu 10/1
6:36 pm-11:47 pm
1 stop6h 11m
$311
OntarioBozeman
ONT - BZN
ONTBZN
Ontario
Wed 10/21
7:23 am-1:22 pm
1 stop4h 59m
Bozeman Gallatin Field
Sat 10/24
11:16 am-6:03 pm
1 stop7h 47m
$311
OntarioBozeman
ONT - BZN
ONTBZN
Ontario
Tue 7/28
5:10 pm-12:23 am
1 stop6h 13m
Bozeman Gallatin Field
Fri 7/31
5:15 am-8:47 am
1 stop4h 32m
$311
OntarioBozeman
ONT - BZN
ONTBZN
Ontario
Tue 8/25
3:07 pm-10:59 pm
1 stop6h 52m
Bozeman Gallatin Field
Sat 8/29
3:35 pm-8:24 pm
1 stop5h 49m
$311
OntarioBozeman
ONT - BZN
ONTBZN
Ontario
Tue 10/13
9:45 am-5:58 pm
1 stop7h 13m
Bozeman Gallatin Field
Tue 10/20
1:10 pm-4:24 pm
1 stop4h 14m
$311
OntarioBozeman
ONT - BZN
ONTBZN
Ontario
Thu 9/24
5:15 pm-12:15 am
1 stop6h 00m
Bozeman Gallatin Field
Mon 9/28
6:00 am-9:02 am
1 stop4h 02m
$311
OntarioBozeman
ONT - BZN
ONTBZN
Ontario
Sat 10/10
4:42 pm-5:03 pm
1 stop23h 21m
Bozeman Gallatin Field
Sat 10/17
8:00 am-1:21 pm
1 stop6h 21m
$327
Showing 1-10 of 60 resultsSorted by cheapest first
Best time to book a flight from Ontario to Montana
Have a flexible travel schedule? Discover the best time to fly to Montana from Ontario with our price prediction graph.
ONT-BIL
ONT-FCA
ONT-BZN
ONT-WYS
ONT-MSO
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 Ontario to Montana
ONT-USMT
ONT-BIL
ONT-FCA
ONT-BZN
ONT-WYS
What is the cheapest month to book a flight from Ontario to Montana?
Currently, February is the cheapest month in which you can book a flight from Ontario to Montana (average of $294). Flying from Ontario to Montana in July is currently the most expensive (average of $490). 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.
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 July 18, 2026.
See what other customers who have flown with Southwest,Alaska Airlines, andDelta from Ontario to Montana have to say. Users can see the overall rating for each airline as well as how each is rated in terms of entertainment options, comfort, food, crew/service, and boarding process.
Overall
8.0
Comfort
8.0
Entertainment
7.5
Crew
8.6
Food
7.0
Boarding
8.1
Reviews
1 / 20
8.0
ExcellentLa Tracimeldamarcos,Jun 2026
LAX - SLC
Overall
8.0
Comfort
8.0
Entertainment
7.5
Crew
8.6
Food
7.0
Boarding
8.1
Reviews
1 / 20
8.0
ExcellentLa Tracimeldamarcos,Jun 2026
LAX - SLC
Overall
8.0
Comfort
8.0
Entertainment
7.5
Crew
8.6
Food
7.0
Boarding
8.1
Reviews
1 / 20
8.0
ExcellentLa Tracimeldamarcos,Jun 2026
LAX - SLC
Overall
8.0
Comfort
8.0
Entertainment
7.5
Crew
8.6
Food
7.0
Boarding
8.1
Reviews
1 / 20
8.0
ExcellentLa Tracimeldamarcos,Jun 2026
LAX - SLC
Overall
8.0
Comfort
8.0
Entertainment
7.5
Crew
8.6
Food
7.0
Boarding
8.1
Reviews
1 / 20
8.0
ExcellentLa Tracimeldamarcos,Jun 2026
LAX - SLC
Related info for your journey
Find useful and relevant information for your journey from Ontario 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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Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.
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Alternative routes for Ontario 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 Ontario to Montana by cabin class
Find flights from Ontario to Montana, based on your preferred cabin class, be it economy, premium economy, business, or first class.
Ontario and Montana flights
Browse other Ontario and Montana flight options. Last updated on July 18, 2026.
Popular flight searches
Check out other popular destinations found by fellow travelers in 2026
Ontario to Montana flights
Consider these flights traveling from Ontario to Montana.
Top 4 airlines flying from Ontario to Montana
Discover the top 4 airlines that operate flights from Ontario 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 July 18, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$178 | Average$456 | FlexibilityNo cancel fee | On-time75% | |
| Cheapest$189 | Average$402 | FlexibilityNo cancel fee | On-time69% | |
| Cheapest$198 | Average$370 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$230 | Average$412 | FlexibilityNo cancel fee | On-time63% |