$95+ 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 3/25. Fares are subject to change and may not be available on all flights or dates of travel.
ONT — BZN
Mar 18 — Mar 251
1 adult, Economy
We work with more than 300 partners to bring you better travel deals
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
We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.3. Compare prices and book
Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.Cheap flight deals from Ontario to Montana
Cheapest
Best
Last-minute
One-way
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 16, 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 16, 2026.
This United Airlines deal was found by Cheapflights users on 2/12. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 2/271:50 pm
ONT
- BZN
1 stop5h 16m
United Airlines
Tue 3/34:29 pm
BZN
- ONT
1 stop5h 21m
United Airlines
Deal found 2/12![United Airlines logo]()
$211
This Delta deal was found by Cheapflights users on 2/13. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 4/105:09 pm
ONT
- BZN
1 stop5h 01m
Delta
Mon 4/137:18 am
BZN
- ONT
1 stop7h 21m
Delta
Deal found 2/13![Delta logo]()
$217
This Delta deal was found by Cheapflights users on 2/14. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 5/136:00 am
ONT
- FCA
1 stop4h 26m
Delta
Sat 5/306:13 pm
FCA
- ONT
1 stop5h 32m
Delta
Deal found 2/14![Delta logo]()
$217
This Alaska Airlines deal was found by Cheapflights users on 2/13. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 3/147:00 am
ONT
- BZN
1 stop5h 08m
Alaska Airlines
Fri 3/201:50 pm
BZN
- ONT
1 stop4h 55m
Alaska Airlines
Deal found 2/13![Alaska Airlines logo]()
$221
This Delta deal was found by Cheapflights users on 2/15. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 4/96:00 am
ONT
- FCA
1 stop4h 26m
Delta
Wed 4/225:05 am
FCA
- ONT
2 stops9h 34m
Delta
Deal found 2/15![Delta logo]()
$222
This Delta deal was found by Cheapflights users on 2/13. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 3/156:00 am
ONT
- BZN
1 stop3h 48m
Delta
Wed 3/253:19 pm
BZN
- ONT
1 stop8h 15m
Delta
Deal found 2/13![Delta logo]()
$225
This Delta deal was found by Cheapflights users on 2/13. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 3/156:00 am
ONT
- BZN
1 stop3h 48m
Delta
Thu 3/196:30 pm
BZN
- ONT
1 stop6h 21m
Delta
Deal found 2/13![Delta logo]()
$227
This Alaska Airlines deal was found by Cheapflights users on 2/15. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 8/77:48 pm
ONT
- BZN
1 stop13h 47m
Alaska Airlines
Mon 8/108:00 am
BZN
- ONT
1 stop5h 53m
Alaska Airlines
Deal found 2/15![Alaska Airlines logo]()
$231
This Alaska Airlines deal was found by Cheapflights users on 2/14. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 4/156:00 am
ONT
- FCA
1 stop5h 12m
Alaska Airlines
Mon 4/277:28 pm
FCA
- ONT
1 stop5h 31m
Alaska Airlines
Deal found 2/14![Alaska Airlines logo]()
$233
This Alaska Airlines deal was found by Cheapflights users on 2/13. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 2/264:02 pm
ONT
- BZN
1 stop6h 54m
Alaska Airlines
Tue 3/33:02 pm
BZN
- ONT
1 stop8h 42m
Alaska Airlines
Deal found 2/13![Alaska Airlines logo]()
$235
This Delta deal was found by Cheapflights users on 2/14. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 5/146:00 am
ONT
- FCA
1 stop4h 26m
Delta
Thu 5/285:13 am
FCA
- ONT
1 stop4h 40m
Delta
Deal found 2/14![Delta logo]()
$237
This Delta deal was found by Cheapflights users on 2/12. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 3/55:00 pm
ONT
- BZN
1 stop5h 15m
Delta
Tue 3/103:19 pm
BZN
- ONT
1 stop8h 14m
Delta
Deal found 2/12![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 16, 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 16, 2026.
This United Airlines deal was found by Cheapflights users on 2/12. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 2/271:50 pm
ONT
- BZN
1 stop5h 16m
United Airlines
Tue 3/34:29 pm
BZN
- ONT
1 stop5h 21m
United Airlines
Deal found 2/12![United Airlines logo]()
$211
This Delta deal was found by Cheapflights users on 2/14. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 6/36:00 am
ONT
- FCA
1 stop4h 26m
Delta
Tue 6/235:25 am
FCA
- ONT
1 stop4h 36m
Delta
Deal found 2/14![Delta logo]()
$217
This Alaska Airlines deal was found by Cheapflights users on 2/14. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 6/295:33 pm
ONT
- BZN
1 stop5h 24m
Alaska Airlines
Sat 7/48:00 am
BZN
- ONT
1 stop5h 53m
Alaska Airlines
Deal found 2/14![Alaska Airlines logo]()
$231
This Delta deal was found by Cheapflights users on 2/15. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 4/96:00 am
ONT
- FCA
1 stop4h 26m
Delta
Wed 4/225:05 am
FCA
- ONT
2 stops9h 34m
Delta
Deal found 2/15![Delta logo]()
$222
This Alaska Airlines deal was found by Cheapflights users on 2/14. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 8/77:48 pm
ONT
- BZN
1 stop13h 47m
Alaska Airlines
Mon 8/108:00 am
BZN
- ONT
1 stop5h 53m
Alaska Airlines
Deal found 2/14![Alaska Airlines logo]()
$231
This Delta deal was found by Cheapflights users on 2/13. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 3/165:09 pm
ONT
- BZN
1 stop5h 01m
Delta
Wed 3/253:19 pm
BZN
- ONT
1 stop8h 15m
Delta
Deal found 2/13![Delta logo]()
$225
This United Airlines deal was found by Cheapflights users on 2/13. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 4/155:10 am
ONT
- BIL
1 stop7h 13m
United Airlines
Fri 4/172:35 pm
BIL
- ONT
2 stops9h 10m
United Airlines
Deal found 2/13![United Airlines logo]()
$266
This Delta deal was found by Cheapflights users on 2/13. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 3/156:00 am
ONT
- BZN
1 stop3h 48m
Delta
Tue 3/243:19 pm
BZN
- ONT
1 stop8h 15m
Delta
Deal found 2/13![Delta logo]()
$225
This Alaska Airlines deal was found by Cheapflights users on 2/13. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 7/215:33 pm
ONT
- MSO
1 stop5h 46m
Alaska Airlines
Wed 7/294:13 pm
MSO
- ONT
1 stop8h 43m
Alaska Airlines
Deal found 2/13![Alaska Airlines logo]()
$261
This Delta deal was found by Cheapflights users on 2/13. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 3/185:09 pm
ONT
- BZN
1 stop5h 01m
Delta
Thu 3/196:30 pm
BZN
- ONT
1 stop6h 21m
Delta
Deal found 2/13![Delta logo]()
$227
This Alaska Airlines deal was found by Cheapflights users on 2/12. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 4/226:00 am
ONT
- MSO
1 stop5h 28m
Alaska Airlines
Tue 4/283:55 pm
MSO
- ONT
1 stop7h 37m
Alaska Airlines
Deal found 2/12![Alaska Airlines logo]()
$261
This Delta deal was found by Cheapflights users on 2/15. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 3/286:00 am
ONT
- BZN
1 stop3h 48m
Delta
Tue 4/76:30 pm
BZN
- ONT
1 stop6h 21m
Delta
Deal found 2/15![Delta logo]()
$227
This Alaska Airlines deal was found by Cheapflights users on 2/13. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 7/305:33 pm
ONT
- MSO
1 stop5h 46m
Alaska Airlines
Mon 8/106:36 pm
MSO
- ONT
1 stop6h 20m
Alaska Airlines
Deal found 2/13![Alaska Airlines logo]()
$261
This Delta deal was found by Cheapflights users on 2/12. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 3/265:09 pm
ONT
- BZN
1 stop5h 01m
Delta
Mon 3/306:30 pm
BZN
- ONT
1 stop6h 21m
Delta
Deal found 2/12![Delta logo]()
$227
This Alaska Airlines deal was found by Cheapflights users on 2/13. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 3/186:00 am
ONT
- HLN
1 stop10h 45m
Alaska Airlines
Tue 3/246:22 pm
HLN
- ONT
1 stop6h 37m
Alaska Airlines
Deal found 2/13![Alaska Airlines logo]()
$263
This United Airlines deal was found by Cheapflights users on 2/13. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 3/175:15 am
ONT
- HLN
1 stop7h 23m
United Airlines
Tue 3/246:15 am
HLN
- ONT
2 stops12h 26m
United Airlines
Deal found 2/13![United Airlines logo]()
$352
This Delta deal was found by Cheapflights users on 2/12. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 3/156:00 am
ONT
- BZN
1 stop3h 48m
Delta
Thu 3/196:30 pm
BZN
- ONT
1 stop6h 21m
Delta
Deal found 2/12![Delta logo]()
$227
This Alaska Airlines deal was found by Cheapflights users on 2/13. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 3/174:02 pm
ONT
- HLN
1 stop24h 43m
Alaska Airlines
Wed 3/256:22 pm
HLN
- ONT
1 stop6h 37m
Alaska Airlines
Deal found 2/13![Alaska Airlines logo]()
$263
This United Airlines deal was found by Cheapflights users on 2/13. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 3/181:50 pm
ONT
- HLN
1 stop6h 35m
United Airlines
Tue 3/246:15 am
HLN
- ONT
2 stops12h 26m
United Airlines
Deal found 2/13![United Airlines logo]()
$352
This Delta deal was found by Cheapflights users on 2/14. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 5/146:00 am
ONT
- FCA
1 stop4h 26m
Delta
Wed 5/276:13 pm
FCA
- ONT
1 stop6h 21m
Delta
Deal found 2/14![Delta logo]()
$237
This Alaska Airlines deal was found by Cheapflights users on 2/14. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 6/14:03 pm
ONT
- FCA
1 stop6h 55m
Alaska Airlines
Wed 6/176:33 am
FCA
- ONT
1 stop7h 20m
Alaska Airlines
Deal found 2/14![Alaska Airlines logo]()
$276
This Alaska Airlines deal was found by Cheapflights users on 2/13. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 3/1810:33 am
ONT
- HLN
1 stop6h 12m
Alaska Airlines
Wed 3/256:22 pm
HLN
- ONT
1 stop6h 37m
Alaska Airlines
Deal found 2/13![Alaska Airlines logo]()
$277
This Delta deal was found by Cheapflights users on 2/15. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 3/125:09 pm
ONT
- MSO
1 stop6h 15m
Delta
Thu 3/196:04 pm
MSO
- ONT
1 stop6h 47m
Delta
Deal found 2/15![Delta logo]()
$261
This Delta deal was found by Cheapflights users on 2/15. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 3/126:00 am
ONT
- MSO
1 stop5h 16m
Delta
Mon 3/166:04 pm
MSO
- ONT
1 stop6h 47m
Delta
Deal found 2/15![Delta logo]()
$261
This Alaska Airlines deal was found by Cheapflights users on 2/14. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 3/166:08 pm
ONT
- MSO
1 stop17h 51m
Alaska Airlines
Mon 3/234:23 pm
MSO
- ONT
1 stop8h 36m
Alaska Airlines
Deal found 2/14![Alaska Airlines logo]()
$290
This United Airlines deal was found by Cheapflights users on 2/12. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 5/95:00 am
ONT
- WYS
1 stop7h 28m
United Airlines
Wed 5/132:03 pm
WYS
- ONT
1 stop23h 35m
United Airlines
Deal found 2/12![United Airlines logo]()
$489
This Delta deal was found by Cheapflights users on 2/15. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 6/24:58 pm
ONT
- BIL
1 stop4h 54m
Delta
Mon 6/85:45 am
BIL
- ONT
1 stop4h 16m
Delta
Deal found 2/15![Delta logo]()
$261
This Alaska Airlines deal was found by Cheapflights users on 2/13. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 3/164:02 pm
ONT
- HLN
1 stop22h 57m
Alaska Airlines
Tue 3/246:22 pm
HLN
- ONT
1 stop6h 37m
Alaska Airlines
Deal found 2/13![Alaska Airlines logo]()
$293
This Delta deal was found by Cheapflights users on 2/13. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 3/315:09 pm
ONT
- BIL
1 stop4h 20m
Delta
Thu 4/26:21 pm
BIL
- ONT
1 stop6h 30m
Delta
Deal found 2/13![Delta logo]()
$261
This United Airlines deal was found by Cheapflights users on 2/15. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 7/165:00 am
ONT
- WYS
1 stop7h 20m
United Airlines
Sun 7/192:02 pm
WYS
- ONT
1 stop7h 15m
United Airlines
Deal found 2/15![United Airlines logo]()
$518
Last-minute flights from Ontario to MontanaDiscover last-minute flight deals from Ontario to Montana. Data last updated February 16, 2026 and is based on user searches.
Discover last-minute flight deals from Ontario to Montana. Data last updated February 16, 2026 and is based on user searches.
This Alaska Airlines deal was found by Cheapflights users on 2/15. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 2/244:02 pm
ONT
- BZN
1 stop6h 54m
Alaska Airlines
Mon 3/21:48 pm
BZN
- ONT
1 stop6h 09m
Alaska Airlines
Deal found 2/15![Alaska Airlines logo]()
$245
This Alaska Airlines deal was found by Cheapflights users on 2/13. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 2/264:02 pm
ONT
- BZN
1 stop6h 54m
Alaska Airlines
Tue 3/33:02 pm
BZN
- ONT
1 stop8h 42m
Alaska Airlines
Deal found 2/13![Alaska Airlines logo]()
$235
This United Airlines deal was found by Cheapflights users on 2/12. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 2/271:50 pm
ONT
- BZN
1 stop5h 16m
United Airlines
Tue 3/34:29 pm
BZN
- ONT
1 stop5h 21m
United Airlines
Deal found 2/12![United Airlines logo]()
$211
This Alaska Airlines deal was found by Cheapflights users on 2/12. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 3/46:14 am
ONT
- BZN
1 stop6h 54m
Alaska Airlines
Mon 3/91:48 pm
BZN
- ONT
1 stop6h 09m
Alaska Airlines
Deal found 2/12![Alaska Airlines logo]()
$250
This Delta deal was found by Cheapflights users on 2/12. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 3/55:00 pm
ONT
- BZN
1 stop5h 15m
Delta
Tue 3/103:19 pm
BZN
- ONT
1 stop8h 14m
Delta
Deal found 2/12![Delta logo]()
$239
This Delta deal was found by Cheapflights users on 2/12. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 3/65:00 pm
ONT
- BZN
1 stop5h 15m
Delta
Mon 3/93:19 pm
BZN
- ONT
1 stop8h 14m
Delta
Deal found 2/12![Delta logo]()
$244
This Alaska Airlines deal was found by Cheapflights users on 2/13. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 3/147:00 am
ONT
- BZN
1 stop5h 08m
Alaska Airlines
Fri 3/201:50 pm
BZN
- ONT
1 stop4h 55m
Alaska Airlines
Deal found 2/13![Alaska Airlines logo]()
$221
This Delta deal was found by Cheapflights users on 2/13. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 3/156:00 am
ONT
- BZN
1 stop3h 48m
Delta
Wed 3/253:19 pm
BZN
- ONT
1 stop8h 15m
Delta
Deal found 2/13![Delta logo]()
$225
This Delta deal was found by Cheapflights users on 2/13. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 3/156:00 am
ONT
- BZN
1 stop3h 48m
Delta
Mon 3/236:30 pm
BZN
- ONT
1 stop6h 21m
Delta
Deal found 2/13![Delta logo]()
$227
This Alaska Airlines deal was found by Cheapflights users on 2/13. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 3/174:02 pm
ONT
- HLN
1 stop24h 43m
Alaska Airlines
Tue 3/246:22 pm
HLN
- ONT
1 stop6h 37m
Alaska Airlines
Deal found 2/13![Alaska Airlines logo]()
$243
This Alaska Airlines deal was found by Cheapflights users on 2/13. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 3/1810:33 am
ONT
- BZN
1 stop7h 13m
Alaska Airlines
Fri 3/201:50 pm
BZN
- ONT
1 stop4h 55m
Alaska Airlines
Deal found 2/13![Alaska Airlines logo]()
$231
This Delta deal was found by Cheapflights users on 2/14. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 3/226:00 am
ONT
- FCA
1 stop4h 26m
Delta
Mon 3/305:56 pm
FCA
- ONT
1 stop6h 55m
Delta
Deal found 2/14![Delta logo]()
$217
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 16, 2026.
Search for one-way flight options from Ontario to Montana. Find affordable one-way fares based on user searches. Data last updated February 16, 2026.
This Trip.com deal was found by Cheapflights users on 2/14. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 3/2510:03 pm
ONT
- BZN
1 stop10h 35m
Multiple Airlines
Deal found 2/14![Multiple Airlines logo]()
$95
This Alaska Airlines deal was found by Cheapflights users on 2/12. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 4/157:00 am
ONT
- BZN
1 stop5h 10m
Alaska Airlines
Deal found 2/12![Alaska Airlines logo]()
$106
This Delta deal was found by Cheapflights users on 2/12. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 3/265:09 pm
ONT
- BZN
1 stop5h 01m
Delta
Deal found 2/12![Delta logo]()
$114
This Alaska Airlines deal was found by Cheapflights users on 2/14. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 4/227:00 am
ONT
- BZN
1 stop5h 23m
Alaska Airlines
Deal found 2/14![Alaska Airlines logo]()
$116
This Alaska Airlines deal was found by Cheapflights users on 2/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 3/37:00 am
ONT
- FCA
1 stop5h 13m
Alaska Airlines
Deal found 2/16![Alaska Airlines logo]()
$120
This Alaska Airlines deal was found by Cheapflights users on 2/12. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 3/96:14 am
ONT
- BZN
1 stop6h 54m
Alaska Airlines
Deal found 2/12![Alaska Airlines logo]()
$125
This Trip.com deal was found by Cheapflights users on 2/15. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 5/206:00 am
ONT
- MSO
1 stop5h 23m
Alaska Airlines
Deal found 2/15![Alaska Airlines logo]()
$126
This Alaska Airlines deal was found by Cheapflights users on 2/13. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 2/264:02 pm
ONT
- BZN
1 stop6h 54m
Alaska Airlines
Deal found 2/13![Alaska Airlines logo]()
$130
This Alaska Airlines deal was found by Cheapflights users on 2/12. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 7/812:13 pm
ONT
- MSO
1 stop4h 43m
Alaska Airlines
Deal found 2/12![Alaska Airlines logo]()
$131
This Delta deal was found by Cheapflights users on 2/13. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 3/176:00 am
ONT
- BIL
1 stop3h 53m
Delta
Deal found 2/13![Delta logo]()
$131
This Kiwi.com deal was found by Cheapflights users on 2/13. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 3/122:06 pm
ONT
- BIL
1 stop18h 01m
Multiple Airlines
Deal found 2/13![Multiple Airlines logo]()
$134
This Alaska Airlines deal was found by Cheapflights users on 2/12. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 5/147:41 pm
ONT
- BZN
1 stop25h 56m
Alaska Airlines
Deal found 2/12![Alaska Airlines logo]()
$137
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 16, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $211 (United Airlines) |
One-way from | $95 (Trip.com) |
Popular in | July |
Cheapest in | January |
Average price | $386 |
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 16, 2026.
Use the filters below to find and compare flights from Ontario to Montana that are best for you.
Fly from
Ontario
Fly to
Montana
Route
Depart
Return
Price
OntarioBozeman
ONT - BZN
ONTBZN
Ontario
Fri 2/27
1:50 pm-8:06 pm
1 stop5h 16m
Bozeman Gallatin Field
Tue 3/3
4:29 pm-8:50 pm
1 stop5h 21m
$211
OntarioKalispell
ONT - FCA
ONTFCA
Ontario
Wed 6/3
6:00 am-11:26 am
1 stop4h 26m
Kalispell Glacier Park
Tue 6/23
5:25 am-9:01 am
1 stop4h 36m
$217
OntarioKalispell
ONT - FCA
ONTFCA
Ontario
Thu 4/9
6:00 am-11:26 am
1 stop4h 26m
Kalispell Glacier Park
Wed 4/22
5:05 am-1:39 pm
2 stops9h 34m
$222
OntarioBozeman
ONT - BZN
ONTBZN
Ontario
Mon 3/16
5:09 pm-11:10 pm
1 stop5h 01m
Bozeman Gallatin Field
Wed 3/25
3:19 pm-10:34 pm
1 stop8h 15m
$225
OntarioBozeman
ONT - BZN
ONTBZN
Ontario
Sun 3/15
6:00 am-10:48 am
1 stop3h 48m
Bozeman Gallatin Field
Tue 3/24
3:19 pm-10:34 pm
1 stop8h 15m
$225
OntarioBozeman
ONT - BZN
ONTBZN
Ontario
Wed 3/18
5:09 pm-11:10 pm
1 stop5h 01m
Bozeman Gallatin Field
Thu 3/19
6:30 pm-11:51 pm
1 stop6h 21m
$227
OntarioBozeman
ONT - BZN
ONTBZN
Ontario
Sat 3/28
6:00 am-10:48 am
1 stop3h 48m
Bozeman Gallatin Field
Tue 4/7
6:30 pm-11:51 pm
1 stop6h 21m
$227
OntarioBozeman
ONT - BZN
ONTBZN
Ontario
Thu 3/26
5:09 pm-11:10 pm
1 stop5h 01m
Bozeman Gallatin Field
Mon 3/30
6:30 pm-11:51 pm
1 stop6h 21m
$227
OntarioBozeman
ONT - BZN
ONTBZN
Ontario
Sun 3/15
6:00 am-10:48 am
1 stop3h 48m
Bozeman Gallatin Field
Thu 3/19
6:30 pm-11:51 pm
1 stop6h 21m
$227
OntarioBozeman
ONT - BZN
ONTBZN
Ontario
Mon 6/29
5:33 pm-11:57 pm
1 stop5h 24m
Bozeman Gallatin Field
Sat 7/4
8:00 am-12:53 pm
1 stop5h 53m
$231
Showing 1-10 of 60 results
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-FCA
ONT-BIL
ONT-MSO
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-FCA
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 $88). 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 16, 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
Overall
8.0
Boarding
8.1
Crew
8.5
Reviews
1 / 20
10.0
ExcellentAnonymous,Jan 2026
STS - LAX
Comfort
7.8
Food
7.1
Entertainment
7.0
Overall
8.0
Boarding
8.1
Crew
8.5
Reviews
1 / 20
10.0
ExcellentAnonymous,Jan 2026
STS - LAX
Comfort
7.8
Food
7.1
Entertainment
7.0
Overall
8.0
Boarding
8.1
Crew
8.5
Reviews
1 / 20
10.0
ExcellentAnonymous,Jan 2026
STS - LAX
Comfort
7.8
Food
7.1
Entertainment
7.0
Overall
8.0
Boarding
8.1
Crew
8.5
Reviews
1 / 20
10.0
ExcellentAnonymous,Jan 2026
STS - LAX
Comfort
7.8
Food
7.1
Entertainment
7.0
Overall
8.0
Boarding
8.1
Crew
8.5
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.
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.
Alternative routes
Complete your trip
Flights by cabin class
Other flight options
Popular flights
Top destinations
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 February 16, 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 16, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$178 | Average$416 | FlexibilityNo cancel fee | On-time75% | |
| Cheapest$184 | Average$372 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$189 | Average$350 | FlexibilityNo cancel fee | On-time69% | |
| Cheapest$211 | Average$369 | FlexibilityNo cancel fee | On-time63% |