$116+ 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 9/24. Fares are subject to change and may not be available on all flights or dates of travel.
ONT — BZN
Sep 3 — Sep 101
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 August 4, 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 August 4, 2026.
This Kiwi.com deal was found by Cheapflights users on 8/3. 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.
Thu 9/242:30 pm
ONT
- BZN
1 stop5h 22m
Multiple Airlines
Sun 9/279:42 pm
BZN
- ONT
1 stop10h 22m
Multiple Airlines
Deal found 8/3![Multiple Airlines logo]()
$240
This Kiwi.com deal was found by Cheapflights users on 8/1. Clicking the “Pick Dates” 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 8/2711:15 am
ONT
- MSO
1 stop8h 47m
Multiple Airlines
Sun 8/309:52 pm
MSO
- ONT
1 stop11h 11m
Multiple Airlines
Deal found 8/1![Multiple Airlines logo]()
$253
This Kiwi.com deal was found by Cheapflights users on 7/31. Clicking the “Pick Dates” 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 10/299:43 pm
ONT
- BIL
1 stop18h 18m
Multiple Airlines
Mon 11/27:59 pm
BIL
- ONT
1 stop21h 11m
Multiple Airlines
Deal found 7/31![Multiple Airlines logo]()
$253
This Kiwi.com deal was found by Cheapflights users on 8/3. 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.
Wed 9/92:30 pm
ONT
- BZN
1 stop26h 24m
Multiple Airlines
Sun 9/139:42 pm
BZN
- ONT
1 stop10h 22m
Multiple Airlines
Deal found 8/3![Multiple Airlines logo]()
$258
This Delta deal was found by Cheapflights users on 7/31. Clicking the “Pick Dates” 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 9/225:15 pm
ONT
- FCA
1 stop4h 39m
Delta
Tue 9/296:00 pm
FCA
- ONT
1 stop6h 47m
Delta
Deal found 7/31![Delta logo]()
$287
This Delta deal was found by Cheapflights users on 7/31. Clicking the “Pick Dates” 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 9/226:00 am
ONT
- FCA
1 stop4h 47m
Delta
Fri 10/25:30 am
FCA
- ONT
1 stop4h 32m
Delta
Deal found 7/31![Delta logo]()
$298
This Trip.com deal was found by Cheapflights users on 8/2. Clicking the “Pick Dates” 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 9/108:00 am
ONT
- BZN
1 stop8h 54m
Multiple Airlines
Thu 9/172:21 pm
BZN
- ONT
1 stop5h 42m
Multiple Airlines
Deal found 8/2![Multiple Airlines logo]()
$299
This Kiwi.com deal was found by Cheapflights users on 7/29. Clicking the “Pick Dates” 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.
Fri 9/118:00 am
ONT
- BIL
1 stop7h 21m
Multiple Airlines
Fri 9/185:11 pm
BIL
- ONT
1 stop16h 58m
Multiple Airlines
Deal found 7/29![Multiple Airlines logo]()
$303
This Priceline deal was found by Cheapflights users on 7/30. Clicking the “Pick Dates” 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 10/196:02 am
ONT
- FCA
1 stop5h 21m
Alaska Airlines
Fri 10/231:03 pm
FCA
- ONT
1 stop4h 47m
Alaska Airlines
Deal found 7/30![Alaska Airlines logo]()
$307
This Booking.com deal was found by Cheapflights users on 7/30. Clicking the “Pick Dates” 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 9/193:14 pm
ONT
- FCA
1 stop6h 42m
Alaska Airlines
Wed 9/238:21 pm
FCA
- ONT
1 stop15h 55m
Alaska Airlines
Deal found 7/30![Alaska Airlines logo]()
$308
This Alaska Airlines deal was found by Cheapflights users on 8/2. Clicking the “Pick Dates” 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 10/2011:13 am
ONT
- FCA
1 stop6h 52m
Alaska Airlines
Sat 10/248:01 am
FCA
- ONT
1 stop6h 15m
Alaska Airlines
Deal found 8/2![Alaska Airlines logo]()
$315
This Alaska Airlines deal was found by Cheapflights users on 7/30. Clicking the “Pick Dates” 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 10/107:25 am
ONT
- FCA
1 stop4h 58m
Alaska Airlines
Thu 10/157:45 pm
FCA
- ONT
1 stop4h 57m
Alaska Airlines
Deal found 7/30![Alaska Airlines logo]()
$318
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 August 4, 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 August 4, 2026.
This Alaska Airlines deal was found by Cheapflights users on 8/3. 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 10/272:13 pm
ONT
- FCA
1 stop7h 46m
Alaska Airlines
Fri 10/307:45 pm
FCA
- ONT
1 stop4h 57m
Alaska Airlines
Deal found 8/3![Alaska Airlines logo]()
$287
This Delta deal was found by Cheapflights users on 8/3. 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.
Mon 8/316:00 am
ONT
- FCA
1 stop4h 09m
Delta
Fri 9/45:15 am
FCA
- ONT
1 stop4h 37m
Delta
Deal found 8/3![Delta logo]()
$287
This Kiwi.com deal was found by Cheapflights users on 7/29. Clicking the “Pick Dates” 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.
Fri 9/118:00 am
ONT
- BIL
1 stop7h 21m
Multiple Airlines
Fri 9/185:11 pm
BIL
- ONT
1 stop16h 58m
Multiple Airlines
Deal found 7/29![Multiple Airlines logo]()
$303
This Southwest deal was found by Cheapflights users on 7/30. Clicking the “Pick Dates” 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 8/282:00 pm
ONT
- BZN
1 stop7h 25m
Southwest
Mon 8/317:20 am
BZN
- ONT
1 stop5h 05m
Southwest
Deal found 7/30![Southwest logo]()
$321
This United Airlines deal was found by Cheapflights users on 7/31. Clicking the “Pick Dates” 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
- WYS
1 stop7h 20m
United Airlines
Fri 8/284:44 pm
WYS
- ONT
1 stop5h 09m
United Airlines
Deal found 7/31![United Airlines logo]()
$384
This Delta deal was found by Cheapflights users on 8/2. Clicking the “Pick Dates” 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 9/225:15 pm
ONT
- FCA
1 stop4h 39m
Delta
Tue 9/296:00 pm
FCA
- ONT
1 stop6h 47m
Delta
Deal found 8/2![Delta logo]()
$287
This Delta deal was found by Cheapflights users on 8/3. 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.
Sun 9/206:00 am
ONT
- FCA
1 stop4h 47m
Delta
Wed 9/306:00 pm
FCA
- ONT
1 stop6h 47m
Delta
Deal found 8/3![Delta logo]()
$287
This Alaska Airlines deal was found by Cheapflights users on 7/30. Clicking the “Pick Dates” 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 10/107:25 am
ONT
- FCA
1 stop4h 58m
Alaska Airlines
Thu 10/157:45 pm
FCA
- ONT
1 stop4h 57m
Alaska Airlines
Deal found 7/30![Alaska Airlines logo]()
$318
This Southwest deal was found by Cheapflights users on 8/3. 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.
Thu 10/221:05 pm
ONT
- BZN
2 stops8h 20m
Southwest
Wed 10/2811:25 am
BZN
- ONT
2 stops8h 10m
Southwest
Deal found 8/3![Southwest logo]()
$345
This Alaska Airlines deal was found by Cheapflights users on 8/1. Clicking the “Pick Dates” 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 10/277:25 am
ONT
- BZN
1 stop4h 50m
Alaska Airlines
Sat 10/317:24 am
BZN
- ONT
1 stop6h 52m
Alaska Airlines
Deal found 8/1![Alaska Airlines logo]()
$321
This United Airlines deal was found by Cheapflights users on 8/1. Clicking the “Pick Dates” 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 8/295:00 am
ONT
- COD
1 stop7h 50m
United Airlines
Tue 9/15:00 am
COD
- ONT
1 stop8h 50m
United Airlines
Deal found 8/1![United Airlines logo]()
$388
This Delta deal was found by Cheapflights users on 8/3. 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 10/225:03 pm
ONT
- BZN
1 stop6h 24m
Delta
Wed 10/286:30 pm
BZN
- ONT
1 stop6h 25m
Delta
Deal found 8/3![Delta logo]()
$321
This Alaska Airlines deal was found by Cheapflights users on 7/31. Clicking the “Pick Dates” 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 8/263:07 pm
ONT
- BIL
1 stop7h 22m
Alaska Airlines
Mon 8/316:14 am
BIL
- ONT
1 stop5h 50m
Alaska Airlines
Deal found 7/31![Alaska Airlines logo]()
$331
This Southwest deal was found by Cheapflights users on 8/3. 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.
Mon 9/142:40 pm
ONT
- BZN
2 stops8h 05m
Southwest
Sat 9/194:10 pm
BZN
- ONT
1 stop4h 55m
Southwest
Deal found 8/3![Southwest logo]()
$380
This Delta deal was found by Cheapflights users on 8/1. Clicking the “Pick Dates” 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 9/296:00 am
ONT
- BZN
1 stop5h 03m
Delta
Tue 10/61:12 pm
BZN
- ONT
1 stop4h 11m
Delta
Deal found 8/1![Delta logo]()
$321
This United Airlines deal was found by Cheapflights users on 7/30. Clicking the “Pick Dates” 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 8/145:00 am
ONT
- HLN
1 stop7h 45m
United Airlines
Tue 8/186:15 am
HLN
- ONT
1 stop7h 35m
United Airlines
Deal found 7/30![United Airlines logo]()
$399
This Alaska Airlines deal was found by Cheapflights users on 7/31. Clicking the “Pick Dates” 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 8/243:07 pm
ONT
- BZN
1 stop6h 52m
Alaska Airlines
Sat 8/293:35 pm
BZN
- ONT
1 stop5h 49m
Alaska Airlines
Deal found 7/31![Alaska Airlines logo]()
$341
This United Airlines deal was found by Cheapflights users on 7/31. Clicking the “Pick Dates” 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 10/45:00 am
ONT
- BZN
1 stop7h 31m
United Airlines
Wed 10/74:30 pm
BZN
- ONT
1 stop5h 28m
United Airlines
Deal found 7/31![United Airlines logo]()
$401
This Delta deal was found by Cheapflights users on 8/3. 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.
Fri 8/216:00 am
ONT
- WYS
1 stop5h 27m
Delta
Fri 8/281:09 pm
WYS
- ONT
2 stops10h 36m
Delta
Deal found 8/3![Delta logo]()
$344
This Alaska Airlines deal was found by Cheapflights users on 8/2. Clicking the “Pick Dates” 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 10/86:45 pm
ONT
- BZN
1 stop19h 30m
Alaska Airlines
Mon 10/122:55 pm
BZN
- ONT
1 stop4h 10m
Alaska Airlines
Deal found 8/2![Alaska Airlines logo]()
$352
This United Airlines deal was found by Cheapflights users on 7/30. Clicking the “Pick Dates” 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 8/145:00 am
ONT
- COD
1 stop7h 50m
United Airlines
Tue 8/182:25 pm
COD
- ONT
1 stop7h 28m
United Airlines
Deal found 7/30![United Airlines logo]()
$403
This Delta deal was found by Cheapflights users on 7/30. Clicking the “Pick Dates” 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 8/186:00 am
ONT
- FCA
1 stop4h 09m
Delta
Tue 8/255:15 am
FCA
- ONT
1 stop4h 37m
Delta
Deal found 7/30![Delta logo]()
$364
This United Airlines deal was found by Cheapflights users on 7/30. Clicking the “Pick Dates” 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 8/151:18 pm
ONT
- FCA
1 stop7h 03m
United Airlines
Thu 8/206:20 am
FCA
- ONT
1 stop7h 30m
United Airlines
Deal found 7/30![United Airlines logo]()
$405
This Alaska Airlines deal was found by Cheapflights users on 8/4. 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.
Thu 9/176:02 am
ONT
- HLN
1 stop9h 39m
Alaska Airlines
Wed 9/235:18 pm
HLN
- ONT
1 stop18h 58m
Alaska Airlines
Deal found 8/4![Alaska Airlines logo]()
$371
This United Airlines deal was found by Cheapflights users on 7/31. Clicking the “Pick Dates” 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 1/95:00 am
ONT
- HLN
1 stop7h 27m
United Airlines
Tue 1/122:30 pm
HLN
- ONT
1 stop6h 50m
United Airlines
Deal found 7/31![United Airlines logo]()
$409
This Alaska Airlines deal was found by Cheapflights users on 8/3. 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.
Mon 8/247:59 pm
ONT
- BZN
1 stop12h 43m
Alaska Airlines
Mon 8/317:03 am
BZN
- ONT
1 stop8h 06m
Alaska Airlines
Deal found 8/3![Alaska Airlines logo]()
$382
This Delta deal was found by Cheapflights users on 8/3. 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 10/16:00 am
ONT
- BZN
1 stop5h 03m
Delta
Sun 10/46:00 am
BZN
- ONT
1 stop4h 02m
Delta
Deal found 8/3![Delta logo]()
$384
This United Airlines deal was found by Cheapflights users on 7/30. Clicking the “Pick Dates” 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 8/269:01 am
ONT
- BIL
2 stops12h 06m
United Airlines
Mon 8/317:00 am
BIL
- ONT
2 stops12h 11m
United Airlines
Deal found 7/30![United Airlines logo]()
$411
This Alaska Airlines deal was found by Cheapflights users on 7/30. Clicking the “Pick Dates” 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 10/17:12 am
ONT
- BZN
1 stop5h 12m
Alaska Airlines
Tue 10/67:24 am
BZN
- ONT
2 stops9h 38m
Alaska Airlines
Deal found 7/30![Alaska Airlines logo]()
$387
This Priceline deal was found by Cheapflights users on 8/3. 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 Priceline is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 9/127:12 am
ONT
- SDY
2 stops11h 36m
Multiple Airlines
Sun 9/209:25 am
SDY
- ONT
2 stops10h 38m
Multiple Airlines
Deal found 8/3![Multiple Airlines logo]()
$788
Last-minute flights from Ontario to MontanaDiscover last-minute flight deals from Ontario to Montana. Data last updated August 4, 2026 and is based on user searches.
Discover last-minute flight deals from Ontario to Montana. Data last updated August 4, 2026 and is based on user searches.
This Kiwi.com deal was found by Cheapflights users on 8/1. Clicking the “Pick Dates” 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 8/2711:15 am
ONT
- MSO
1 stop8h 47m
Multiple Airlines
Sun 8/309:52 pm
MSO
- ONT
1 stop11h 11m
Multiple Airlines
Deal found 8/1![Multiple Airlines logo]()
$253
This Delta deal was found by Cheapflights users on 8/2. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/75:05 pm
ONT
- BIL
1 stop4h 20m
Delta
Mon 9/145:20 am
BIL
- ONT
1 stop4h 42m
Delta
Deal found 8/2![Delta logo]()
$321
This Kiwi.com deal was found by Cheapflights users on 8/3. 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.
Wed 9/92:30 pm
ONT
- BZN
1 stop26h 24m
Multiple Airlines
Sun 9/139:42 pm
BZN
- ONT
1 stop10h 22m
Multiple Airlines
Deal found 8/3![Multiple Airlines logo]()
$258
This Trip.com deal was found by Cheapflights users on 8/2. Clicking the “Pick Dates” 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 9/108:00 am
ONT
- BZN
1 stop8h 54m
Multiple Airlines
Thu 9/172:21 pm
BZN
- ONT
1 stop5h 42m
Multiple Airlines
Deal found 8/2![Multiple Airlines logo]()
$299
This Kiwi.com deal was found by Cheapflights users on 7/29. Clicking the “Pick Dates” 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.
Fri 9/118:00 am
ONT
- BIL
1 stop7h 21m
Multiple Airlines
Fri 9/185:11 pm
BIL
- ONT
1 stop16h 58m
Multiple Airlines
Deal found 7/29![Multiple Airlines logo]()
$303
This Priceline deal was found by Cheapflights users on 8/2. Clicking the “Pick Dates” 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.
Thu 9/173:14 pm
ONT
- BZN
1 stop6h 45m
Alaska Airlines
Wed 9/237:03 am
BZN
- ONT
1 stop8h 13m
Alaska Airlines
Deal found 8/2![Alaska Airlines logo]()
$331
This Booking.com deal was found by Cheapflights users on 7/30. Clicking the “Pick Dates” 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 9/193:14 pm
ONT
- FCA
1 stop6h 42m
Alaska Airlines
Wed 9/238:21 pm
FCA
- ONT
1 stop15h 55m
Alaska Airlines
Deal found 7/30![Alaska Airlines logo]()
$308
This Delta deal was found by Cheapflights users on 7/31. Clicking the “Pick Dates” 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 9/226:00 am
ONT
- FCA
1 stop4h 47m
Delta
Thu 10/112:40 pm
FCA
- ONT
1 stop4h 55m
Delta
Deal found 7/31![Delta logo]()
$287
This Delta deal was found by Cheapflights users on 7/31. Clicking the “Pick Dates” 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 9/226:00 am
ONT
- FCA
1 stop4h 47m
Delta
Fri 10/25:30 am
FCA
- ONT
1 stop4h 32m
Delta
Deal found 7/31![Delta logo]()
$298
This Alaska Airlines deal was found by Cheapflights users on 7/31. Clicking the “Pick Dates” 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 9/2312:12 pm
ONT
- FCA
1 stop6h 29m
Alaska Airlines
Fri 10/26:08 pm
FCA
- ONT
1 stop6h 16m
Alaska Airlines
Deal found 7/31![Alaska Airlines logo]()
$315
This Kiwi.com deal was found by Cheapflights users on 8/3. 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.
Thu 9/242:30 pm
ONT
- BZN
1 stop5h 22m
Multiple Airlines
Sun 9/279:42 pm
BZN
- ONT
1 stop10h 22m
Multiple Airlines
Deal found 8/3![Multiple Airlines logo]()
$240
This Southwest deal was found by Cheapflights users on 7/30. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/297:45 am
ONT
- BZN
1 stop4h 40m
Southwest
Tue 10/66:30 am
BZN
- ONT
1 stop5h 15m
Southwest
Deal found 7/30![Southwest logo]()
$321
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 August 4, 2026.
Search for one-way flight options from Ontario to Montana. Find affordable one-way fares based on user searches. Data last updated August 4, 2026.
This Kiwi.com deal was found by Cheapflights users on 7/31. Clicking the “Pick Dates” 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 9/242:30 pm
ONT
- BZN
1 stop5h 22m
Multiple Airlines
Deal found 7/31![Multiple Airlines logo]()
$116
This Delta deal was found by Cheapflights users on 7/31. Clicking the “Pick Dates” 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 8/236:00 am
ONT
- FCA
1 stop4h 09m
Delta
Deal found 7/31![Delta logo]()
$144
This Delta deal was found by Cheapflights users on 7/30. Clicking the “Pick Dates” 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 10/289:45 am
ONT
- FCA
1 stop6h 48m
Delta
Deal found 7/30![Delta logo]()
$154
This Delta deal was found by Cheapflights users on 7/31. Clicking the “Pick Dates” 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
- FCA
1 stop4h 48m
Delta
Deal found 7/31![Delta logo]()
$155
This Delta deal was found by Cheapflights users on 7/31. Clicking the “Pick Dates” 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 9/125:15 pm
ONT
- BZN
1 stop4h 16m
Delta
Deal found 7/31![Delta logo]()
$161
This Delta deal was found by Cheapflights users on 7/31. Clicking the “Pick Dates” 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 12/315:05 pm
ONT
- BIL
1 stop4h 27m
Delta
Deal found 7/31![Delta logo]()
$161
This Gotogate deal was found by Cheapflights users on 7/31. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/117:59 pm
ONT
- BZN
1 stop12h 55m
Alaska Airlines
Deal found 7/31![Alaska Airlines logo]()
$166
This Booking.com deal was found by Cheapflights users on 7/31. Clicking the “Pick Dates” 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.
Thu 9/103:14 pm
ONT
- BZN
1 stop6h 45m
Alaska Airlines
Deal found 7/31![Alaska Airlines logo]()
$171
This Priceline deal was found by Cheapflights users on 8/3. 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 Priceline is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/3112:00 pm
ONT
- FCA
1 stop6h 21m
Alaska Airlines
Deal found 8/3![Alaska Airlines logo]()
$171
This United Airlines deal was found by Cheapflights users on 7/30. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 8/111:18 pm
ONT
- BZN
1 stop7h 01m
United Airlines
Deal found 7/30![United Airlines logo]()
$175
This Booking.com deal was found by Cheapflights users on 7/30. Clicking the “Pick Dates” 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 10/236:56 pm
ONT
- BZN
1 stop13h 44m
Alaska Airlines
Deal found 7/30![Alaska Airlines logo]()
$176
This Booking.com deal was found by Cheapflights users on 8/3. 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 Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 9/66:05 pm
ONT
- BZN
1 stop18h 19m
Alaska Airlines
Deal found 8/3![Alaska Airlines logo]()
$180
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 August 4, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $253 (Kiwi.com) |
One-way from | $116 (Kiwi.com) |
Popular in | May |
Cheapest in | January |
Average price | $397 |
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 August 4, 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
Tue 10/27
2:13 pm-10:59 pm
1 stop7h 46m
Kalispell Glacier Park
Fri 10/30
7:45 pm-11:42 pm
1 stop4h 57m
$287
Quickest round-trip
OntarioKalispell
ONT - FCA
ONTFCA
Ontario
Mon 8/31
6:00 am-11:09 am
1 stop4h 09m
Kalispell Glacier Park
Fri 9/4
5:15 am-8:52 am
1 stop4h 37m
$287
OntarioKalispell
ONT - FCA
ONTFCA
Ontario
Tue 9/22
5:15 pm-10:54 pm
1 stop4h 39m
Kalispell Glacier Park
Tue 9/29
6:00 pm-11:47 pm
1 stop6h 47m
$287
OntarioKalispell
ONT - FCA
ONTFCA
Ontario
Sun 9/20
6:00 am-11:47 am
1 stop4h 47m
Kalispell Glacier Park
Wed 9/30
6:00 pm-11:47 pm
1 stop6h 47m
$287
OntarioBillings
ONT - BIL
ONTBIL
Ontario
Fri 9/11
8:00 am-4:21 pm
1 stop7h 21m
Billings Logan Intl
Fri 9/18
5:11 pm-9:09 am
1 stop16h 58m
$303
OntarioKalispell
ONT - FCA
ONTFCA
Ontario
Sat 10/10
7:25 am-1:23 pm
1 stop4h 58m
Kalispell Glacier Park
Thu 10/15
7:45 pm-11:42 pm
1 stop4h 57m
$318
OntarioBozeman
ONT - BZN
ONTBZN
Ontario
Fri 8/28
2:00 pm-10:25 pm
1 stop7h 25m
Bozeman Gallatin Field
Mon 8/31
7:20 am-11:25 am
1 stop5h 05m
$321
OntarioBozeman
ONT - BZN
ONTBZN
Ontario
Tue 10/27
7:25 am-1:15 pm
1 stop4h 50m
Bozeman Gallatin Field
Sat 10/31
7:24 am-1:16 pm
1 stop6h 52m
$321
OntarioBozeman
ONT - BZN
ONTBZN
Ontario
Thu 10/22
5:03 pm-12:27 am
1 stop6h 24m
Bozeman Gallatin Field
Wed 10/28
6:30 pm-11:55 pm
1 stop6h 25m
$321
OntarioBozeman
ONT - BZN
ONTBZN
Ontario
Tue 9/29
6:00 am-12:03 pm
1 stop5h 03m
Bozeman Gallatin Field
Tue 10/6
1:12 pm-4:23 pm
1 stop4h 11m
$321
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-BZN
ONT-MSO
ONT-FCA
ONT-BIL
ONT-HLN
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-BZN
ONT-MSO
ONT-FCA
ONT-BIL
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 $494). 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?
Airfare is below average for this route at the moment.
Ontario to Montana flights typically cost between $299 and $488 in September.The cheapest round-trip price found within the last 5 days was $240 on Multiple Airlines (Sep 24-Sep 27).
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 August 4, 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
Boarding
8.1
Entertainment
7.5
Crew
8.6
Comfort
8.0
Food
7.0
Reviews
1 / 20
8.0
ExcellentLa Tracimeldamarcos,Jun 2026
LAX - SLC
Overall
8.0
Boarding
8.1
Entertainment
7.5
Crew
8.6
Comfort
8.0
Food
7.0
Reviews
1 / 20
8.0
ExcellentLa Tracimeldamarcos,Jun 2026
LAX - SLC
Overall
8.0
Boarding
8.1
Entertainment
7.5
Crew
8.6
Comfort
8.0
Food
7.0
Reviews
1 / 20
8.0
ExcellentLa Tracimeldamarcos,Jun 2026
LAX - SLC
Overall
8.0
Boarding
8.1
Entertainment
7.5
Crew
8.6
Comfort
8.0
Food
7.0
Reviews
1 / 20
8.0
ExcellentLa Tracimeldamarcos,Jun 2026
LAX - SLC
Overall
8.0
Boarding
8.1
Entertainment
7.5
Crew
8.6
Comfort
8.0
Food
7.0
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.
Browse thousands of different options on Cheapflights for your next trip
Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.
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Alternative routes for 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 August 4, 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 August 4, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$182 | Average$443 | FlexibilityNo cancel fee | On-time75% | |
| Cheapest$189 | Average$440 | FlexibilityNo cancel fee | On-time69% | |
| Cheapest$216 | Average$389 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$230 | Average$412 | FlexibilityNo cancel fee | On-time63% |