$103+ 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 8/20. Fares are subject to change and may not be available on all flights or dates of travel.
ONT — BZN
Jul 8 — Jul 151
Round-trip
1 adult, Economy
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Find cheap flights from Ontario to Montana with Cheapflights
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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 June 8, 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 June 8, 2026.
This Kiwi.com deal was found by Cheapflights users on 6/5. Clicking the “Pick Dates” 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 8/2711:43 am
ONT
- MSO
1 stop8h 19m
Multiple Airlines
Sun 8/309:52 pm
MSO
- ONT
1 stop18h 17m
Multiple Airlines
Deal found 6/5![Multiple Airlines logo]()
$189
This Kiwi.com deal was found by Cheapflights users on 6/7. Clicking the “Pick Dates” 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 9/169:49 pm
ONT
- BZN
1 stop22h 03m
Multiple Airlines
Sun 9/209:42 pm
BZN
- ONT
1 stop13h 39m
Multiple Airlines
Deal found 6/7![Multiple Airlines logo]()
$202
This Kiwi.com deal was found by Cheapflights users on 6/5. Clicking the “Pick Dates” 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.
Sun 8/233:34 pm
ONT
- FCA
1 stop22h 15m
Multiple Airlines
Mon 8/3112:14 pm
FCA
- ONT
1 stop27h 55m
Multiple Airlines
Deal found 6/5![Multiple Airlines logo]()
$204
This Kiwi.com deal was found by Cheapflights users on 6/5. Clicking the “Pick Dates” 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.
Sun 8/2311:43 am
ONT
- MSO
1 stop8h 19m
Multiple Airlines
Sun 8/309:52 pm
MSO
- ONT
1 stop18h 17m
Multiple Airlines
Deal found 6/5![Multiple Airlines logo]()
$215
This Kiwi.com deal was found by Cheapflights users on 6/5. Clicking the “Pick Dates” 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.
Sun 8/233:34 pm
ONT
- FCA
1 stop22h 15m
Multiple Airlines
Fri 8/2810:54 am
FCA
- ONT
1 stop9h 54m
Multiple Airlines
Deal found 6/5![Multiple Airlines logo]()
$222
This Kiwi.com deal was found by Cheapflights users on 6/5. Clicking the “Pick Dates” 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 8/273:34 pm
ONT
- FCA
1 stop17h 30m
Multiple Airlines
Mon 8/3112:14 pm
FCA
- ONT
1 stop27h 55m
Multiple Airlines
Deal found 6/5![Multiple Airlines logo]()
$237
This Kiwi.com deal was found by Cheapflights users on 6/3. Clicking the “Pick Dates” 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 9/269:49 pm
ONT
- MSO
1 stop22h 10m
Multiple Airlines
Sun 10/46:05 pm
MSO
- ONT
1 stop17h 16m
Multiple Airlines
Deal found 6/3![Multiple Airlines logo]()
$243
This Kiwi.com deal was found by Cheapflights users on 6/5. Clicking the “Pick Dates” 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 8/2711:43 am
ONT
- MSO
1 stop8h 19m
Multiple Airlines
Thu 9/39:49 pm
MSO
- ONT
1 stop18h 20m
Multiple Airlines
Deal found 6/5![Multiple Airlines logo]()
$264
This Kiwi.com deal was found by Cheapflights users on 6/4. Clicking the “Pick Dates” 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 7/3011:52 am
ONT
- FCA
1 stop21h 08m
Multiple Airlines
Mon 8/310:30 am
FCA
- ONT
1 stop22h 33m
Multiple Airlines
Deal found 6/4![Multiple Airlines logo]()
$264
This Delta deal was found by Cheapflights users on 6/7. Clicking the “Pick Dates” 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 7/115:10 pm
ONT
- BZN
1 stop3h 53m
Delta
Wed 7/155:15 am
BZN
- ONT
1 stop4h 32m
Delta
Deal found 6/7![Delta logo]()
$271
This Alaska Airlines deal was found by Cheapflights users on 6/7. Clicking the “Pick Dates” 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 10/247:23 am
ONT
- FCA
1 stop5h 00m
Alaska Airlines
Wed 10/287:45 pm
FCA
- ONT
1 stop4h 57m
Alaska Airlines
Deal found 6/7![Alaska Airlines logo]()
$277
This United Airlines deal was found by Cheapflights users on 6/3. Clicking the “Pick Dates” 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 8/215:00 am
ONT
- BZN
1 stop7h 24m
United Airlines
Mon 8/244:32 pm
BZN
- ONT
1 stop5h 21m
United Airlines
Deal found 6/3![United Airlines logo]()
$282
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 June 8, 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 June 8, 2026.
This Alaska Airlines deal was found by Cheapflights users on 6/7. Clicking the “Pick Dates” 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 8/246:05 pm
ONT
- BZN
1 stop18h 19m
Alaska Airlines
Mon 8/313:35 pm
BZN
- ONT
1 stop5h 49m
Alaska Airlines
Deal found 6/7![Alaska Airlines logo]()
$271
This Delta deal was found by Cheapflights users on 6/7. Clicking the “Pick Dates” 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 8/215:05 pm
ONT
- BZN
1 stop5h 59m
Delta
Mon 8/246:00 am
BZN
- ONT
1 stop3h 52m
Delta
Deal found 6/7![Delta logo]()
$271
This Southwest deal was found by Cheapflights users on 6/3. Clicking the “Pick Dates” 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 7/104:40 pm
ONT
- BZN
1 stop7h 35m
Southwest
Tue 7/147:45 am
BZN
- ONT
2 stops7h 20m
Southwest
Deal found 6/3![Southwest logo]()
$370
This United Airlines deal was found by Cheapflights users on 6/3. Clicking the “Pick Dates” 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 10/35:00 am
ONT
- WYS
1 stop7h 20m
United Airlines
Fri 10/92:02 pm
WYS
- ONT
1 stop7h 50m
United Airlines
Deal found 6/3![United Airlines logo]()
$483
This Alaska Airlines deal was found by Cheapflights users on 6/7. Clicking the “Pick Dates” 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 10/247:23 am
ONT
- BZN
1 stop4h 59m
Alaska Airlines
Wed 10/2811:16 am
BZN
- ONT
1 stop7h 44m
Alaska Airlines
Deal found 6/7![Alaska Airlines logo]()
$271
This Delta deal was found by Cheapflights users on 6/4. Clicking the “Pick Dates” 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 9/169:45 am
ONT
- FCA
1 stop6h 43m
Delta
Thu 9/175:20 am
FCA
- ONT
1 stop4h 33m
Delta
Deal found 6/4![Delta logo]()
$277
This Alaska Airlines deal was found by Cheapflights users on 6/7. Clicking the “Pick Dates” 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 8/106:02 am
ONT
- BZN
1 stop7h 07m
Alaska Airlines
Sat 8/156:03 am
BZN
- ONT
1 stop6h 11m
Alaska Airlines
Deal found 6/7![Alaska Airlines logo]()
$294
This Delta deal was found by Cheapflights users on 6/4. Clicking the “Pick Dates” 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 7/275:10 pm
ONT
- MSO
1 stop6h 18m
Delta
Wed 8/55:30 am
MSO
- ONT
1 stop4h 18m
Delta
Deal found 6/4![Delta logo]()
$311
This Delta deal was found by Cheapflights users on 6/7. Clicking the “Pick Dates” 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 9/65:05 pm
ONT
- BIL
1 stop4h 20m
Delta
Thu 9/106:25 pm
BIL
- ONT
1 stop5h 19m
Delta
Deal found 6/7![Delta logo]()
$316
This Priceline deal was found by Cheapflights users on 6/6. Clicking the “Pick Dates” 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.
Mon 7/207:00 am
ONT
- SDY
2 stops11h 48m
Multiple Airlines
Tue 7/217:35 am
SDY
- ONT
2 stops9h 55m
Multiple Airlines
Deal found 6/6![Multiple Airlines logo]()
$811
This Alaska Airlines deal was found by Cheapflights users on 6/3. Clicking the “Pick Dates” 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 8/116:02 am
ONT
- BZN
1 stop7h 07m
Alaska Airlines
Mon 8/176:03 am
BZN
- ONT
1 stop8h 06m
Alaska Airlines
Deal found 6/3![Alaska Airlines logo]()
$340
This Delta deal was found by Cheapflights users on 6/4. Clicking the “Pick Dates” 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 8/156:00 am
ONT
- WYS
1 stop3h 46m
Delta
Wed 8/191:09 pm
WYS
- ONT
1 stop4h 15m
Delta
Deal found 6/4![Delta logo]()
$319
This Alaska Airlines deal was found by Cheapflights users on 6/4. Clicking the “Pick Dates” 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 8/176:02 am
ONT
- BZN
1 stop7h 07m
Alaska Airlines
Tue 8/2510:27 am
BZN
- ONT
2 stops10h 57m
Alaska Airlines
Deal found 6/4![Alaska Airlines logo]()
$357
This Delta deal was found by Cheapflights users on 6/6. Clicking the “Pick Dates” 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 7/76:00 am
ONT
- HLN
1 stop5h 15m
Delta
Mon 7/135:40 am
HLN
- ONT
1 stop4h 07m
Delta
Deal found 6/6![Delta logo]()
$329
This United Airlines deal was found by Cheapflights users on 6/5. Clicking the “Pick Dates” 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 8/15:00 am
ONT
- COD
1 stop7h 19m
United Airlines
Wed 8/1210:40 am
COD
- ONT
1 stop11h 13m
United Airlines
Deal found 6/5![United Airlines logo]()
$485
This Alaska Airlines deal was found by Cheapflights users on 6/3. Clicking the “Pick Dates” 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 10/202:14 pm
ONT
- MSO
1 stop6h 45m
Alaska Airlines
Sat 10/242:06 pm
MSO
- ONT
1 stop4h 54m
Alaska Airlines
Deal found 6/3![Alaska Airlines logo]()
$361
This Delta deal was found by Cheapflights users on 6/5. Clicking the “Pick Dates” 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 8/255:05 pm
ONT
- MSO
1 stop6h 13m
Delta
Mon 8/316:27 pm
MSO
- ONT
1 stop4h 56m
Delta
Deal found 6/5![Delta logo]()
$331
This United Airlines deal was found by Cheapflights users on 6/6. Clicking the “Pick Dates” 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 8/291:56 pm
ONT
- COD
2 stops7h 49m
United Airlines
Wed 9/210:40 am
COD
- ONT
2 stops10h 21m
United Airlines
Deal found 6/6![United Airlines logo]()
$489
This Alaska Airlines deal was found by Cheapflights users on 6/4. Clicking the “Pick Dates” 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 10/312:14 pm
ONT
- BIL
1 stop8h 36m
Alaska Airlines
Wed 11/411:55 am
BIL
- ONT
1 stop7h 33m
Alaska Airlines
Deal found 6/4![Alaska Airlines logo]()
$369
This United Airlines deal was found by Cheapflights users on 6/4. Clicking the “Pick Dates” 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
ONT
- WYS
1 stop7h 20m
United Airlines
Wed 8/191:55 pm
WYS
- ONT
2 stops23h 17m
United Airlines
Deal found 6/4![United Airlines logo]()
$493
This Delta deal was found by Cheapflights users on 6/5. Clicking the “Pick Dates” 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 8/249:43 am
ONT
- MSO
1 stop7h 04m
Delta
Fri 8/286:27 pm
MSO
- ONT
1 stop6h 07m
Delta
Deal found 6/5![Delta logo]()
$341
This Delta deal was found by Cheapflights users on 6/6. Clicking the “Pick Dates” 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 7/145:10 pm
ONT
- HLN
1 stop4h 29m
Delta
Tue 7/215:40 am
HLN
- ONT
1 stop4h 07m
Delta
Deal found 6/6![Delta logo]()
$344
This Alaska Airlines deal was found by Cheapflights users on 6/7. Clicking the “Pick Dates” 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 10/316:00 am
ONT
- MSO
1 stop7h 50m
Alaska Airlines
Wed 11/41:55 pm
MSO
- ONT
1 stop5h 33m
Alaska Airlines
Deal found 6/7![Alaska Airlines logo]()
$381
This United Airlines deal was found by Cheapflights users on 6/5. Clicking the “Pick Dates” 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 7/311:18 pm
ONT
- COD
1 stop8h 25m
United Airlines
Wed 8/1210:40 am
COD
- ONT
2 stops10h 21m
United Airlines
Deal found 6/5![United Airlines logo]()
$514
This Alaska Airlines deal was found by Cheapflights users on 6/3. Clicking the “Pick Dates” 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 11/124:09 pm
ONT
- BIL
1 stop5h 34m
Alaska Airlines
Mon 11/165:12 pm
BIL
- ONT
2 stops24h 46m
Alaska Airlines
Deal found 6/3![Alaska Airlines logo]()
$387
This Delta deal was found by Cheapflights users on 6/3. Clicking the “Pick Dates” 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 8/205:05 pm
ONT
- BIL
1 stop4h 20m
Delta
Sun 8/235:20 am
BIL
- ONT
1 stop4h 28m
Delta
Deal found 6/3![Delta logo]()
$361
This United Airlines deal was found by Cheapflights users on 6/4. Clicking the “Pick Dates” 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 7/111:50 pm
ONT
- COD
2 stops7h 53m
United Airlines
Sun 7/125:15 am
COD
- ONT
1 stop8h 32m
United Airlines
Deal found 6/4![United Airlines logo]()
$544
This Alaska Airlines deal was found by Cheapflights users on 6/4. Clicking the “Pick Dates” 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 10/57:23 am
ONT
- BZN
1 stop4h 59m
Alaska Airlines
Sun 10/118:00 am
BZN
- ONT
1 stop16h 42m
Alaska Airlines
Deal found 6/4![Alaska Airlines logo]()
$395
This United Airlines deal was found by Cheapflights users on 6/5. Clicking the “Pick Dates” 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 7/285:00 am
ONT
- COD
1 stop7h 19m
United Airlines
Wed 8/1210:40 am
COD
- ONT
1 stop11h 13m
United Airlines
Deal found 6/5![United Airlines logo]()
$545
This Delta deal was found by Cheapflights users on 6/6. Clicking the “Pick Dates” 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 7/295:10 pm
ONT
- MSO
1 stop6h 18m
Delta
Sun 8/25:35 am
MSO
- ONT
1 stop4h 12m
Delta
Deal found 6/6![Delta logo]()
$381
Last-minute flights from Ontario to MontanaDiscover last-minute flight deals from Ontario to Montana. Data last updated June 8, 2026 and is based on user searches.
Discover last-minute flight deals from Ontario to Montana. Data last updated June 8, 2026 and is based on user searches.
This Delta deal was found by Cheapflights users on 6/6. Clicking the “Pick Dates” 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 6/216:00 am
ONT
- BZN
1 stop4h 18m
Delta
Mon 6/225:15 am
BZN
- ONT
1 stop4h 35m
Delta
Deal found 6/6![Delta logo]()
$295
This Delta deal was found by Cheapflights users on 6/4. Clicking the “Pick Dates” 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 7/106:00 am
ONT
- HLN
1 stop5h 15m
Delta
Sun 7/125:40 am
HLN
- ONT
1 stop4h 07m
Delta
Deal found 6/4![Delta logo]()
$319
This Delta deal was found by Cheapflights users on 6/7. Clicking the “Pick Dates” 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 7/115:10 pm
ONT
- BZN
1 stop3h 53m
Delta
Wed 7/155:15 am
BZN
- ONT
1 stop4h 32m
Delta
Deal found 6/7![Delta logo]()
$271
This Delta deal was found by Cheapflights users on 6/4. Clicking the “Pick Dates” 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 7/115:10 pm
ONT
- BZN
1 stop3h 53m
Delta
Mon 7/205:15 am
BZN
- ONT
1 stop4h 32m
Delta
Deal found 6/4![Delta logo]()
$291
This Alaska Airlines deal was found by Cheapflights users on 6/4. Clicking the “Pick Dates” 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 7/142:05 pm
ONT
- BZN
1 stop8h 14m
Alaska Airlines
Sat 7/186:03 am
BZN
- ONT
1 stop6h 11m
Alaska Airlines
Deal found 6/4![Alaska Airlines logo]()
$317
This Alaska Airlines deal was found by Cheapflights users on 6/4. Clicking the “Pick Dates” 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 7/152:05 pm
ONT
- BZN
1 stop8h 14m
Alaska Airlines
Tue 7/216:03 am
BZN
- ONT
1 stop6h 11m
Alaska Airlines
Deal found 6/4![Alaska Airlines logo]()
$294
This Delta deal was found by Cheapflights users on 6/5. Clicking the “Pick Dates” 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 7/191:00 pm
ONT
- BZN
1 stop4h 44m
Delta
Tue 7/215:15 am
BZN
- ONT
1 stop4h 32m
Delta
Deal found 6/5![Delta logo]()
$315
This Delta deal was found by Cheapflights users on 6/4. Clicking the “Pick Dates” 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 7/266:00 am
ONT
- FCA
1 stop4h 26m
Delta
Thu 8/65:15 am
FCA
- ONT
1 stop4h 33m
Delta
Deal found 6/4![Delta logo]()
$277
This Delta deal was found by Cheapflights users on 6/4. Clicking the “Pick Dates” 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 7/275:10 pm
ONT
- MSO
1 stop6h 18m
Delta
Wed 8/55:30 am
MSO
- ONT
1 stop4h 18m
Delta
Deal found 6/4![Delta logo]()
$311
This Kiwi.com deal was found by Cheapflights users on 6/7. Clicking the “Pick Dates” 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 7/291:38 pm
ONT
- MSO
1 stop18h 56m
Multiple Airlines
Sun 8/210:24 am
MSO
- ONT
1 stop22h 39m
Multiple Airlines
Deal found 6/7![Multiple Airlines logo]()
$283
This Kiwi.com deal was found by Cheapflights users on 6/4. Clicking the “Pick Dates” 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 7/3011:52 am
ONT
- FCA
1 stop21h 08m
Multiple Airlines
Mon 8/310:30 am
FCA
- ONT
1 stop22h 33m
Multiple Airlines
Deal found 6/4![Multiple Airlines logo]()
$264
This Kiwi.com deal was found by Cheapflights users on 6/7. Clicking the “Pick Dates” 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 7/308:58 am
ONT
- MSO
2 stops27h 08m
Multiple Airlines
Thu 8/610:24 am
MSO
- ONT
1 stop6h 30m
Multiple Airlines
Deal found 6/7![Multiple Airlines logo]()
$304
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 June 8, 2026.
Search for one-way flight options from Ontario to Montana. Find affordable one-way fares based on user searches. Data last updated June 8, 2026.
This Kiwi.com deal was found by Cheapflights users on 6/4. Clicking the “Pick Dates” 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 8/2011:43 am
ONT
- MSO
1 stop8h 19m
Multiple Airlines
Deal found 6/4![Multiple Airlines logo]()
$103
This SmartFares deal was found by Cheapflights users on 6/7. Clicking the “Pick Dates” 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.
Tue 7/282:05 pm
ONT
- BZN
1 stop8h 14m
Alaska Airlines
Deal found 6/7![Alaska Airlines logo]()
$125
This Trip.com deal was found by Cheapflights users on 6/7. Clicking the “Pick Dates” 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 8/203:07 pm
ONT
- BZN
1 stop6h 52m
Alaska Airlines
Deal found 6/7![Alaska Airlines logo]()
$129
This Booking.com deal was found by Cheapflights users on 6/7. Clicking the “Pick Dates” 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.
Sat 8/223:07 pm
ONT
- BZN
1 stop6h 52m
Alaska Airlines
Deal found 6/7![Alaska Airlines logo]()
$135
This Priceline deal was found by Cheapflights users on 6/7. Clicking the “Pick Dates” 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.
Tue 8/42:05 pm
ONT
- BZN
1 stop8h 14m
Alaska Airlines
Deal found 6/7![Alaska Airlines logo]()
$136
This Delta deal was found by Cheapflights users on 6/7. Clicking the “Pick Dates” 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 7/45:21 pm
ONT
- FCA
1 stop4h 34m
Delta
Deal found 6/7![Delta logo]()
$139
This Booking.com deal was found by Cheapflights users on 6/7. Clicking the “Pick Dates” 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.
Fri 7/109:20 pm
ONT
- BZN
1 stop11h 26m
Alaska Airlines
Deal found 6/7![Alaska Airlines logo]()
$141
This Delta deal was found by Cheapflights users on 6/4. Clicking the “Pick Dates” 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 7/35:21 pm
ONT
- BZN
1 stop6h 02m
Delta
Deal found 6/4![Delta logo]()
$146
This Trip.com deal was found by Cheapflights users on 6/7. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 8/72:05 pm
ONT
- BZN
1 stop8h 14m
Alaska Airlines
Deal found 6/7![Alaska Airlines logo]()
$149
This Kiwi.com deal was found by Cheapflights users on 6/6. Clicking the “Pick Dates” 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 6/2011:58 am
ONT
- MSO
1 stop20h 37m
Multiple Airlines
Deal found 6/6![Multiple Airlines logo]()
$154
This Delta deal was found by Cheapflights users on 6/7. Clicking the “Pick Dates” 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 7/275:10 pm
ONT
- MSO
1 stop6h 18m
Delta
Deal found 6/7![Delta logo]()
$156
This Priceline deal was found by Cheapflights users on 6/7. Clicking the “Pick Dates” 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.
Wed 7/82:05 pm
ONT
- BZN
1 stop8h 14m
Alaska Airlines
Deal found 6/7![Alaska Airlines logo]()
$159
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 June 8, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $189 (Kiwi.com) |
One-way from | $103 (Kiwi.com) |
Popular in | May |
Cheapest in | January |
Average price | $392 |
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 June 8, 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
OntarioBozeman
ONT - BZN
ONTBZN
Ontario
Mon 8/24
6:05 pm-1:24 pm
1 stop18h 19m
Bozeman Gallatin Field
Mon 8/31
3:35 pm-8:24 pm
1 stop5h 49m
$271
OntarioBozeman
ONT - BZN
ONTBZN
Ontario
Fri 8/21
5:05 pm-12:04 am
1 stop5h 59m
Bozeman Gallatin Field
Mon 8/24
6:00 am-8:52 am
1 stop3h 52m
$271
OntarioBozeman
ONT - BZN
ONTBZN
Ontario
Sat 10/24
7:23 am-1:22 pm
1 stop4h 59m
Bozeman Gallatin Field
Wed 10/28
11:16 am-6:00 pm
1 stop7h 44m
$271
OntarioKalispell
ONT - FCA
ONTFCA
Ontario
Wed 9/16
9:45 am-5:28 pm
1 stop6h 43m
Kalispell Glacier Park
Thu 9/17
5:20 am-8:53 am
1 stop4h 33m
$277
OntarioBozeman
ONT - BZN
ONTBZN
Ontario
Mon 8/10
6:02 am-2:09 pm
1 stop7h 07m
Bozeman Gallatin Field
Sat 8/15
6:03 am-11:14 am
1 stop6h 11m
$294
OntarioMissoula
ONT - MSO
ONTMSO
Ontario
Mon 7/27
5:10 pm-12:28 am
1 stop6h 18m
Missoula Johnson-Bell Field
Wed 8/5
5:30 am-8:48 am
1 stop4h 18m
$311
OntarioBillings
ONT - BIL
ONTBIL
Ontario
Sun 9/6
5:05 pm-10:25 pm
1 stop4h 20m
Billings Logan Intl
Thu 9/10
6:25 pm-10:44 pm
1 stop5h 19m
$316
Quickest round-trip
OntarioWest Yellowstone
ONT - WYS
ONTWYS
Ontario
Sat 8/15
6:00 am-10:46 am
1 stop3h 46m
West Yellowstone
Wed 8/19
1:09 pm-4:24 pm
1 stop4h 15m
$319
OntarioHelena
ONT - HLN
ONTHLN
Ontario
Tue 7/7
6:00 am-12:15 pm
1 stop5h 15m
Helena
Mon 7/13
5:40 am-8:47 am
1 stop4h 07m
$329
OntarioMissoula
ONT - MSO
ONTMSO
Ontario
Tue 8/25
5:05 pm-12:18 am
1 stop6h 13m
Missoula Johnson-Bell Field
Mon 8/31
6:27 pm-10:23 pm
1 stop4h 56m
$331
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-MSO
ONT-HLN
ONT-WYS
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-MSO
ONT-HLN
What is the cheapest month to book a flight from Ontario to Montana?
Currently, July is the cheapest month in which you can book a flight from Ontario to Montana (average of $120). Flying from Ontario to Montana in March is currently the most expensive (average of $339). 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.
How much does it cost to fly round-trip from Ontario to Montana?
Reviews of airlines servicing Montana
Get insights into the airlines that provide service to Montana. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Montana. Reviews last updated June 8, 2026.
See what other customers who have flown with Alaska Airlines,Southwest, 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.
Entertainment
7.0
Food
7.1
Overall
7.9
Crew
8.5
Boarding
8.1
Comfort
7.8
Reviews
1 / 20
10.0
ExcellentFranzi,Mar 2026
SFO - PDX
Entertainment
7.0
Food
7.1
Overall
7.9
Crew
8.5
Boarding
8.1
Comfort
7.8
Reviews
1 / 20
10.0
ExcellentFranzi,Mar 2026
SFO - PDX
Entertainment
7.0
Food
7.1
Overall
7.9
Crew
8.5
Boarding
8.1
Comfort
7.8
Reviews
1 / 20
10.0
ExcellentFranzi,Mar 2026
SFO - PDX
Entertainment
7.0
Food
7.1
Overall
7.9
Crew
8.5
Boarding
8.1
Comfort
7.8
Reviews
1 / 20
10.0
ExcellentFranzi,Mar 2026
SFO - PDX
Entertainment
7.0
Food
7.1
Overall
7.9
Crew
8.5
Boarding
8.1
Comfort
7.8
Reviews
1 / 20
10.0
ExcellentFranzi,Mar 2026
SFO - PDX
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
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 June 8, 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 June 8, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$178 | Average$422 | FlexibilityNo cancel fee | On-time75% | |
| Cheapest$189 | Average$410 | FlexibilityNo cancel fee | On-time69% | |
| Cheapest$198 | Average$372 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$230 | Average$489 | FlexibilityNo cancel fee | On-time63% |