$102+ 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 5/27. Fares are subject to change and may not be available on all flights or dates of travel.
ONT — BZN
Mar 30 — Apr 61
1 adult, Economy
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Find cheap flights from Ontario 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 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 February 28, 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 February 28, 2026.
This Alaska Airlines deal was found by Cheapflights users on 2/26. 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 3/136:08 pm
ONT
- BZN
1 stop18h 00m
Alaska Airlines
Tue 3/177:00 am
BZN
- ONT
1 stop9h 08m
Alaska Airlines
Deal found 2/26![Alaska Airlines logo]()
$211
This Delta deal was found by Cheapflights users on 2/25. 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 9/195:05 pm
ONT
- BZN
1 stop5h 54m
Delta
Fri 9/255:45 am
BZN
- ONT
1 stop4h 16m
Delta
Deal found 2/25![Delta logo]()
$217
This Delta deal was found by Cheapflights users on 2/27. 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 8/115:05 pm
ONT
- FCA
1 stop4h 57m
Delta
Thu 8/205:25 am
FCA
- ONT
1 stop4h 36m
Delta
Deal found 2/27![Delta logo]()
$217
This Delta deal was found by Cheapflights users on 2/27. 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 4/217:00 am
ONT
- BZN
1 stop14h 40m
Delta
Tue 4/287:18 am
BZN
- ONT
1 stop7h 21m
Delta
Deal found 2/27![Delta logo]()
$223
This Delta deal was found by Cheapflights users on 2/27. 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 4/246:00 am
ONT
- BZN
1 stop4h 04m
Delta
Thu 4/307:18 am
BZN
- ONT
1 stop7h 21m
Delta
Deal found 2/27![Delta logo]()
$225
This Delta deal was found by Cheapflights users on 2/25. 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 8/165:05 pm
ONT
- FCA
1 stop4h 57m
Delta
Thu 8/205:25 am
FCA
- ONT
1 stop4h 36m
Delta
Deal found 2/25![Delta logo]()
$225
This Delta deal was found by Cheapflights users on 2/27. 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 4/266:00 am
ONT
- BZN
1 stop4h 04m
Delta
Wed 4/293:15 pm
BZN
- ONT
1 stop8h 22m
Delta
Deal found 2/27![Delta logo]()
$227
This Alaska Airlines deal was found by Cheapflights users on 2/25. 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 5/87:00 am
ONT
- BZN
1 stop5h 23m
Alaska Airlines
Tue 5/127:59 pm
BZN
- ONT
1 stop16h 13m
Alaska Airlines
Deal found 2/25![Alaska Airlines logo]()
$231
This CheapOair deal was found by Cheapflights users on 2/24. 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 5/194:03 pm
ONT
- FCA
1 stop6h 55m
Alaska Airlines
Sat 5/235:40 pm
FCA
- ONT
1 stop18h 30m
Alaska Airlines
Deal found 2/24![Alaska Airlines logo]()
$233
This United Airlines deal was found by Cheapflights users on 2/27. 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 3/106:15 am
ONT
- BZN
1 stop5h 17m
United Airlines
Tue 3/171:35 pm
BZN
- ONT
1 stop5h 06m
United Airlines
Deal found 2/27![United Airlines logo]()
$235
This Alaska Airlines deal was found by Cheapflights users on 2/27. 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 4/86:00 am
ONT
- BZN
1 stop16h 57m
Alaska Airlines
Mon 4/134:04 pm
BZN
- ONT
1 stop5h 19m
Alaska Airlines
Deal found 2/27![Alaska Airlines logo]()
$237
This Delta deal was found by Cheapflights users on 2/25. 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 9/175:05 pm
ONT
- BZN
1 stop5h 54m
Delta
Sun 9/205:45 am
BZN
- ONT
1 stop4h 16m
Delta
Deal found 2/25![Delta logo]()
$239
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 February 28, 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 February 28, 2026.
This United Airlines deal was found by Cheapflights users on 2/26. 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 4/255:10 am
ONT
- FCA
1 stop7h 21m
United Airlines
Sat 5/26:00 am
FCA
- ONT
1 stop7h 38m
United Airlines
Deal found 2/26![United Airlines logo]()
$241
This Alaska Airlines deal was found by Cheapflights users on 2/24. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 7/42:09 pm
ONT
- BZN
1 stop8h 13m
Alaska Airlines
Tue 7/76:00 am
BZN
- ONT
1 stop6h 14m
Alaska Airlines
Deal found 2/24![Alaska Airlines logo]()
$251
This Delta deal was found by Cheapflights users on 2/27. 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 4/285:05 pm
ONT
- BIL
1 stop4h 49m
Delta
Fri 5/16:18 pm
BIL
- ONT
1 stop6h 26m
Delta
Deal found 2/27![Delta logo]()
$261
This United Airlines deal was found by Cheapflights users on 2/25. 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 4/155:10 am
ONT
- BIL
1 stop7h 13m
United Airlines
Fri 4/1710:38 am
BIL
- ONT
2 stops13h 07m
United Airlines
Deal found 2/25![United Airlines logo]()
$257
This Alaska Airlines deal was found by Cheapflights users on 2/25. 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 4/166:00 am
ONT
- BZN
1 stop7h 10m
Alaska Airlines
Sun 4/197:00 am
BZN
- ONT
1 stop27h 39m
Alaska Airlines
Deal found 2/25![Alaska Airlines logo]()
$258
This Delta deal was found by Cheapflights users on 2/27. 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 5/214:57 pm
ONT
- BZN
1 stop6h 02m
Delta
Mon 5/255:35 am
BZN
- ONT
1 stop4h 18m
Delta
Deal found 2/27![Delta logo]()
$273
This Alaska Airlines deal was found by Cheapflights users on 2/27. 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 4/86:00 am
ONT
- BZN
1 stop16h 57m
Alaska Airlines
Mon 4/137:26 pm
BZN
- ONT
2 stops23h 19m
Alaska Airlines
Deal found 2/27![Alaska Airlines logo]()
$258
This Alaska Airlines deal was found by Cheapflights users on 2/24. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 7/215:38 pm
ONT
- MSO
1 stop16h 04m
Alaska Airlines
Wed 7/297:00 am
MSO
- ONT
1 stop5h 14m
Alaska Airlines
Deal found 2/24![Alaska Airlines logo]()
$261
This Delta deal was found by Cheapflights users on 2/25. 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 3/275:09 pm
ONT
- BIL
1 stop4h 20m
Delta
Mon 3/306:21 pm
BIL
- ONT
1 stop6h 30m
Delta
Deal found 2/25![Delta logo]()
$296
This Alaska Airlines deal was found by Cheapflights users on 2/24. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 7/152:09 pm
ONT
- MSO
1 stop7h 43m
Alaska Airlines
Wed 7/2211:22 am
MSO
- ONT
1 stop6h 38m
Alaska Airlines
Deal found 2/24![Alaska Airlines logo]()
$261
This Delta deal was found by Cheapflights users on 2/27. 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 6/245:05 pm
ONT
- MSO
1 stop6h 19m
Delta
Sun 6/286:10 pm
MSO
- ONT
1 stop6h 34m
Delta
Deal found 2/27![Delta logo]()
$305
This Alaska Airlines deal was found by Cheapflights users on 2/26. 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 7/156:00 am
ONT
- BZN
1 stop7h 10m
Alaska Airlines
Wed 7/226:00 am
BZN
- ONT
1 stop8h 13m
Alaska Airlines
Deal found 2/26![Alaska Airlines logo]()
$265
This United Airlines deal was found by Cheapflights users on 2/26. 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 5/65:00 am
ONT
- BIL
1 stop7h 23m
United Airlines
Tue 5/126:35 am
BIL
- ONT
2 stops12h 17m
United Airlines
Deal found 2/26![United Airlines logo]()
$356
This Priceline deal was found by Cheapflights users on 2/27. 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.
Sun 8/26:00 am
ONT
- SDY
2 stops9h 45m
Multiple Airlines
Mon 8/39:32 am
SDY
- ONT
2 stops11h 59m
Multiple Airlines
Deal found 2/27![Multiple Airlines logo]()
$804
This Alaska Airlines deal was found by Cheapflights users on 2/24. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 3/136:14 am
ONT
- BZN
1 stop6h 54m
Alaska Airlines
Tue 3/173:02 pm
BZN
- ONT
1 stop8h 42m
Alaska Airlines
Deal found 2/24![Alaska Airlines logo]()
$266
This Delta deal was found by Cheapflights users on 2/27. 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 4/246:00 am
ONT
- BIL
1 stop3h 53m
Delta
Tue 4/286:18 pm
BIL
- ONT
1 stop6h 26m
Delta
Deal found 2/27![Delta logo]()
$330
This United Airlines deal was found by Cheapflights users on 2/26. 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 4/15:10 am
ONT
- HLN
1 stop7h 29m
United Airlines
Sat 4/42:25 pm
HLN
- ONT
1 stop7h 11m
United Airlines
Deal found 2/26![United Airlines logo]()
$391
This Alaska Airlines deal was found by Cheapflights users on 2/24. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 5/197:41 pm
ONT
- BZN
1 stop26h 01m
Alaska Airlines
Tue 5/268:00 am
BZN
- ONT
1 stop8h 09m
Alaska Airlines
Deal found 2/24![Alaska Airlines logo]()
$273
This Alaska Airlines deal was found by Cheapflights users on 2/26. 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 5/63:24 pm
ONT
- BIL
1 stop6h 35m
Alaska Airlines
Tue 5/127:00 am
BIL
- ONT
1 stop8h 32m
Alaska Airlines
Deal found 2/26![Alaska Airlines logo]()
$281
This Delta deal was found by Cheapflights users on 2/24. 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 3/116:00 am
ONT
- MSO
2 stops10h 23m
Delta
Sun 3/156:04 pm
MSO
- ONT
1 stop6h 47m
Delta
Deal found 2/24![Delta logo]()
$376
This United Airlines deal was found by Cheapflights users on 2/26. 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 4/25:10 am
ONT
- HLN
1 stop7h 29m
United Airlines
Sun 4/52:25 pm
HLN
- ONT
1 stop7h 11m
United Airlines
Deal found 2/26![United Airlines logo]()
$436
This Delta deal was found by Cheapflights users on 2/25. 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 7/179:55 am
ONT
- MSO
1 stop6h 28m
Delta
Sun 7/265:40 am
MSO
- ONT
1 stop4h 21m
Delta
Deal found 2/25![Delta logo]()
$400
This Alaska Airlines deal was found by Cheapflights users on 2/24. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 4/76:00 am
ONT
- BZN
2 stops8h 24m
Alaska Airlines
Wed 4/87:26 pm
BZN
- ONT
1 stop5h 33m
Alaska Airlines
Deal found 2/24![Alaska Airlines logo]()
$303
This United Airlines deal was found by Cheapflights users on 2/27. 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 5/231:18 pm
ONT
- HLN
1 stop7h 02m
United Airlines
Tue 5/262:20 pm
HLN
- ONT
1 stop7h 22m
United Airlines
Deal found 2/27![United Airlines logo]()
$455
This Alaska Airlines deal was found by Cheapflights users on 2/24. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 4/243:26 pm
ONT
- HLN
1 stop25h 19m
Alaska Airlines
Sun 4/266:22 pm
HLN
- ONT
1 stop16h 23m
Alaska Airlines
Deal found 2/24![Alaska Airlines logo]()
$304
This Alaska Airlines deal was found by Cheapflights users on 2/25. 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 8/2612:00 pm
ONT
- MSO
1 stop4h 56m
Alaska Airlines
Sat 8/292:16 pm
MSO
- ONT
1 stop4h 57m
Alaska Airlines
Deal found 2/25![Alaska Airlines logo]()
$305
This Delta deal was found by Cheapflights users on 2/24. 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.
Sat 5/236:00 am
ONT
- WYS
1 stop5h 25m
Delta
Mon 5/255:40 pm
WYS
- ONT
1 stop6h 54m
Delta
Deal found 2/24![Delta logo]()
$483
This Alaska Airlines deal was found by Cheapflights users on 2/24. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 7/152:09 pm
ONT
- MSO
1 stop7h 43m
Alaska Airlines
Sat 7/187:00 am
MSO
- ONT
1 stop5h 14m
Alaska Airlines
Deal found 2/24![Alaska Airlines logo]()
$305
This Delta deal was found by Cheapflights users on 2/24. 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.
Thu 6/255:05 pm
ONT
- FCA
1 stop4h 57m
Delta
Sun 6/285:25 am
FCA
- ONT
1 stop4h 36m
Delta
Deal found 2/24![Delta logo]()
$485
This Alaska Airlines deal was found by Cheapflights users on 2/24. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 8/512:02 pm
ONT
- MSO
1 stop6h 17m
Alaska Airlines
Sat 8/87:00 am
MSO
- ONT
1 stop5h 14m
Alaska Airlines
Deal found 2/24![Alaska Airlines logo]()
$305
Last-minute flights from Ontario to MontanaDiscover last-minute flight deals from Ontario to Montana. Data last updated February 28, 2026 and is based on user searches.
Discover last-minute flight deals from Ontario to Montana. Data last updated February 28, 2026 and is based on user searches.
This Alaska Airlines deal was found by Cheapflights users on 2/27. 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 3/26:14 am
ONT
- BZN
1 stop6h 54m
Alaska Airlines
Tue 3/101:48 pm
BZN
- ONT
1 stop6h 26m
Alaska Airlines
Deal found 2/27![Alaska Airlines logo]()
$314
This United Airlines deal was found by Cheapflights users on 2/27. 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 3/106:15 am
ONT
- BZN
1 stop5h 17m
United Airlines
Tue 3/171:35 pm
BZN
- ONT
1 stop5h 06m
United Airlines
Deal found 2/27![United Airlines logo]()
$235
This United Airlines deal was found by Cheapflights users on 2/25. 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 3/121:50 pm
ONT
- MSO
1 stop7h 07m
United Airlines
Tue 3/176:15 am
MSO
- ONT
1 stop7h 34m
United Airlines
Deal found 2/25![United Airlines logo]()
$321
This Alaska Airlines deal was found by Cheapflights users on 2/26. 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 3/136:08 pm
ONT
- BZN
1 stop18h 00m
Alaska Airlines
Tue 3/177:00 am
BZN
- ONT
1 stop9h 08m
Alaska Airlines
Deal found 2/26![Alaska Airlines logo]()
$211
This United Airlines deal was found by Cheapflights users on 2/27. 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 3/156:15 am
ONT
- BZN
1 stop5h 17m
United Airlines
Thu 3/191:35 pm
BZN
- ONT
1 stop5h 06m
United Airlines
Deal found 2/27![United Airlines logo]()
$276
This Alaska Airlines deal was found by Cheapflights users on 2/24. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 3/156:14 am
ONT
- BZN
1 stop6h 54m
Alaska Airlines
Sat 3/217:26 pm
BZN
- ONT
1 stop5h 33m
Alaska Airlines
Deal found 2/24![Alaska Airlines logo]()
$320
This Alaska Airlines deal was found by Cheapflights users on 2/24. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 3/186:00 am
ONT
- FCA
1 stop16h 47m
Alaska Airlines
Wed 3/258:26 pm
FCA
- ONT
1 stop14h 13m
Alaska Airlines
Deal found 2/24![Alaska Airlines logo]()
$324
This Alaska Airlines deal was found by Cheapflights users on 2/26. 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 3/246:00 am
ONT
- BZN
1 stop16h 57m
Alaska Airlines
Wed 3/2511:20 am
BZN
- ONT
1 stop7h 53m
Alaska Airlines
Deal found 2/26![Alaska Airlines logo]()
$311
This United Airlines deal was found by Cheapflights users on 2/25. 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 3/255:15 am
ONT
- MSO
1 stop7h 18m
United Airlines
Wed 4/16:15 am
MSO
- ONT
1 stop7h 23m
United Airlines
Deal found 2/25![United Airlines logo]()
$291
This Alaska Airlines deal was found by Cheapflights users on 2/26. 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 3/256:00 am
ONT
- HLN
1 stop10h 45m
Alaska Airlines
Sun 3/296:22 pm
HLN
- ONT
1 stop16h 17m
Alaska Airlines
Deal found 2/26![Alaska Airlines logo]()
$303
This Alaska Airlines deal was found by Cheapflights users on 2/25. 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 3/256:00 am
ONT
- MSO
1 stop8h 35m
Alaska Airlines
Wed 4/14:23 pm
MSO
- ONT
1 stop8h 36m
Alaska Airlines
Deal found 2/25![Alaska Airlines logo]()
$313
This Delta deal was found by Cheapflights users on 2/25. 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 3/275:09 pm
ONT
- BIL
1 stop4h 20m
Delta
Mon 3/306:21 pm
BIL
- ONT
1 stop6h 30m
Delta
Deal found 2/25![Delta logo]()
$296
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 February 28, 2026.
Search for one-way flight options from Ontario to Montana. Find affordable one-way fares based on user searches. Data last updated February 28, 2026.
This SmartFares deal was found by Cheapflights users on 2/26. 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 SmartFares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 5/274:03 pm
ONT
- BZN
1 stop5h 39m
Alaska Airlines
Deal found 2/26![Alaska Airlines logo]()
$102
This Alaska Airlines deal was found by Cheapflights users on 2/26. 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 5/194:03 pm
ONT
- BZN
1 stop5h 39m
Alaska Airlines
Deal found 2/26![Alaska Airlines logo]()
$106
This Kiwi.com deal was found by Cheapflights users on 2/25. 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 4/2211:44 am
ONT
- FCA
1 stop22h 59m
Multiple Airlines
Deal found 2/25![Multiple Airlines logo]()
$108
This Delta deal was found by Cheapflights users on 2/24. 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.
Fri 3/206:00 am
ONT
- FCA
1 stop4h 26m
Delta
Deal found 2/24![Delta logo]()
$109
This Delta deal was found by Cheapflights users on 2/24. 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 3/166:00 am
ONT
- BZN
1 stop7h 36m
Delta
Deal found 2/24![Delta logo]()
$114
This Delta deal was found by Cheapflights users on 2/26. 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 4/2111:53 am
ONT
- FCA
2 stops10h 34m
Delta
Deal found 2/26![Delta logo]()
$114
This Alaska Airlines deal was found by Cheapflights users on 2/26. 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 4/147:00 am
ONT
- BZN
1 stop5h 10m
Alaska Airlines
Deal found 2/26![Alaska Airlines logo]()
$117
This Delta deal was found by Cheapflights users on 2/26. 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 4/246:00 am
ONT
- FCA
1 stop4h 23m
Delta
Deal found 2/26![Delta logo]()
$117
This Alaska Airlines deal was found by Cheapflights users on 2/25. 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 4/17:08 pm
ONT
- BZN
1 stop27h 49m
Alaska Airlines
Deal found 2/25![Alaska Airlines logo]()
$118
This Alaska Airlines deal was found by Cheapflights users on 2/26. 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 5/87:00 am
ONT
- BZN
1 stop5h 23m
Alaska Airlines
Deal found 2/26![Alaska Airlines logo]()
$119
This Alaska Airlines deal was found by Cheapflights users on 2/26. 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.
Sun 5/107:00 am
ONT
- BZN
1 stop5h 23m
Alaska Airlines
Deal found 2/26![Alaska Airlines logo]()
$126
This Alaska Airlines deal was found by Cheapflights users on 2/25. 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 8/122:09 pm
ONT
- MSO
1 stop7h 43m
Alaska Airlines
Deal found 2/25![Alaska Airlines logo]()
$131
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 February 28, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $211 (Alaska Airlines) |
One-way from | $102 (SmartFares) |
Popular in | February |
Cheapest in | January |
Average price | $395 |
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 February 28, 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
OntarioKalispell
ONT - FCA
ONTFCA
Ontario
Sat 4/25
5:10 am-1:31 pm
1 stop7h 21m
Kalispell Glacier Park
Sat 5/2
6:00 am-12:38 pm
1 stop7h 38m
$241
OntarioBozeman
ONT - BZN
ONTBZN
Ontario
Sat 7/4
2:09 pm-11:22 pm
1 stop8h 13m
Bozeman Gallatin Field
Tue 7/7
6:00 am-11:14 am
1 stop6h 14m
$251
OntarioBillings
ONT - BIL
ONTBIL
Ontario
Wed 4/15
5:10 am-1:23 pm
1 stop7h 13m
Billings Logan Intl
Fri 4/17
10:38 am-10:45 pm
2 stops13h 07m
$257
OntarioBozeman
ONT - BZN
ONTBZN
Ontario
Thu 4/16
6:00 am-2:10 pm
1 stop7h 10m
Bozeman Gallatin Field
Sun 4/19
7:00 am-9:39 am
1 stop27h 39m
$258
OntarioBozeman
ONT - BZN
ONTBZN
Ontario
Wed 4/8
6:00 am-11:57 pm
1 stop16h 57m
Bozeman Gallatin Field
Mon 4/13
7:26 pm-5:45 pm
2 stops23h 19m
$258
OntarioBillings
ONT - BIL
ONTBIL
Ontario
Tue 4/28
5:05 pm-10:54 pm
1 stop4h 49m
Billings Logan Intl
Fri 5/1
6:18 pm-11:44 pm
1 stop6h 26m
$261
OntarioMissoula
ONT - MSO
ONTMSO
Ontario
Tue 7/21
5:38 pm-10:42 am
1 stop16h 04m
Missoula Johnson-Bell Field
Wed 7/29
7:00 am-11:14 am
1 stop5h 14m
$261
OntarioMissoula
ONT - MSO
ONTMSO
Ontario
Wed 7/15
2:09 pm-10:52 pm
1 stop7h 43m
Missoula Johnson-Bell Field
Wed 7/22
11:22 am-5:00 pm
1 stop6h 38m
$261
OntarioBozeman
ONT - BZN
ONTBZN
Ontario
Wed 7/15
6:00 am-2:10 pm
1 stop7h 10m
Bozeman Gallatin Field
Wed 7/22
6:00 am-1:13 pm
1 stop8h 13m
$265
OntarioBozeman
ONT - BZN
ONTBZN
Ontario
Fri 3/13
6:14 am-2:08 pm
1 stop6h 54m
Bozeman Gallatin Field
Tue 3/17
3:02 pm-10:44 pm
1 stop8h 42m
$266
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-FCA
ONT-BZN
ONT-BIL
ONT-MSO
ONT-SDY
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-FCA
ONT-BZN
ONT-BIL
ONT-MSO
What is the cheapest month to book a flight from Ontario to Montana?
Currently, April is the cheapest month in which you can book a flight from Ontario to Montana (average of $89). Flying from Ontario to Montana in October is currently the most expensive (average of $187). 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 February 28, 2026.
See what other customers who have flown with Alaska Airlines, Southwest, and Delta 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.
Comfort
7.8
Food
7.1
Entertainment
7.0
Crew
8.5
Boarding
8.1
Overall
8.0
Reviews
1 / 20
10.0
ExcellentAnonymous,Jan 2026
STS - LAX
Comfort
7.8
Food
7.1
Entertainment
7.0
Crew
8.5
Boarding
8.1
Overall
8.0
Reviews
1 / 20
10.0
ExcellentAnonymous,Jan 2026
STS - LAX
Comfort
7.8
Food
7.1
Entertainment
7.0
Crew
8.5
Boarding
8.1
Overall
8.0
Reviews
1 / 20
10.0
ExcellentAnonymous,Jan 2026
STS - LAX
Comfort
7.8
Food
7.1
Entertainment
7.0
Crew
8.5
Boarding
8.1
Overall
8.0
Reviews
1 / 20
10.0
ExcellentAnonymous,Jan 2026
STS - LAX
Comfort
7.8
Food
7.1
Entertainment
7.0
Crew
8.5
Boarding
8.1
Overall
8.0
Reviews
1 / 20
10.0
ExcellentAnonymous,Jan 2026
STS - LAX
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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Alternative routes for Ontario to Montana
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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 February 28, 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 February 28, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$178 | Average$413 | FlexibilityNo cancel fee | On-time75% | |
| Cheapest$184 | Average$380 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$189 | Average$351 | FlexibilityNo cancel fee | On-time69% | |
| Cheapest$211 | Average$383 | FlexibilityNo cancel fee | On-time63% |