$296+ Cheap flights from Santa Rosa (STS) to Ontario
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 10/7. Fares are subject to change and may not be available on all flights or dates of travel.
STS — YYZ
Jul 22 — Jul 291
Round-trip
1 adult, Economy
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Find cheap flights from Santa Rosa to Ontario with Cheapflights
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Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”2. Select your favorite providers
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Cheapest flights from Santa Rosa to OntarioExplore the most affordable flight options available from Santa Rosa to Ontario. Find the lowest fares from popular airlines and budget airlines, with prices last updated on June 22, 2026.
Explore the most affordable flight options available from Santa Rosa to Ontario. Find the lowest fares from popular airlines and budget airlines, with prices last updated on June 22, 2026.
This Kiwi.com deal was found by Cheapflights users on 6/20. Clicking the “Pick Dates” 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 7/181:06 pm
STS
- YYZ
2 stops13h 39m
Multiple Airlines
Mon 7/208:35 pm
YYZ
- STS
1 stop23h 41m
Multiple Airlines
Deal found 6/20![Multiple Airlines logo]()
$509
This Kiwi.com deal was found by Cheapflights users on 6/20. Clicking the “Pick Dates” 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 7/221:06 pm
STS
- YYZ
1 stop14h 33m
Multiple Airlines
Fri 7/243:50 pm
YYZ
- STS
2 stops28h 26m
Multiple Airlines
Deal found 6/20![Multiple Airlines logo]()
$522
This Kiwi.com deal was found by Cheapflights users on 6/20. Clicking the “Pick Dates” 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 7/181:06 pm
STS
- YYZ
2 stops13h 39m
Multiple Airlines
Fri 7/248:35 pm
YYZ
- STS
1 stop23h 41m
Multiple Airlines
Deal found 6/20![Multiple Airlines logo]()
$523
This Kiwi.com deal was found by Cheapflights users on 6/20. Clicking the “Pick Dates” 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.
Tue 7/216:26 am
STS
- YYZ
2 stops21h 13m
Multiple Airlines
Fri 7/248:35 pm
YYZ
- STS
1 stop23h 41m
Multiple Airlines
Deal found 6/20![Multiple Airlines logo]()
$539
This Kiwi.com deal was found by Cheapflights users on 6/20. Clicking the “Pick Dates” 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 7/181:06 pm
STS
- YYZ
2 stops13h 39m
Multiple Airlines
Tue 7/217:00 am
YYZ
- STS
1 stop13h 16m
Multiple Airlines
Deal found 6/20![Multiple Airlines logo]()
$543
This Kiwi.com deal was found by Cheapflights users on 6/20. Clicking the “Pick Dates” 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 7/231:06 pm
STS
- YYZ
2 stops13h 04m
Multiple Airlines
Fri 7/248:35 pm
YYZ
- STS
1 stop23h 41m
Multiple Airlines
Deal found 6/20![Multiple Airlines logo]()
$544
This Kiwi.com deal was found by Cheapflights users on 6/19. Clicking the “Pick Dates” 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 7/151:06 pm
STS
- YYZ
2 stops13h 04m
Multiple Airlines
Tue 7/217:00 am
YYZ
- STS
1 stop13h 16m
Multiple Airlines
Deal found 6/19![Multiple Airlines logo]()
$556
This Kiwi.com deal was found by Cheapflights users on 6/20. Clicking the “Pick Dates” 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 7/181:06 pm
STS
- YYZ
2 stops13h 39m
Multiple Airlines
Wed 7/228:35 pm
YYZ
- STS
1 stop23h 41m
Multiple Airlines
Deal found 6/20![Multiple Airlines logo]()
$576
This Kiwi.com deal was found by Cheapflights users on 6/20. Clicking the “Pick Dates” 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 7/171:06 pm
STS
- YYZ
2 stops13h 39m
Multiple Airlines
Mon 7/208:35 pm
YYZ
- STS
1 stop23h 41m
Multiple Airlines
Deal found 6/20![Multiple Airlines logo]()
$580
This Kiwi.com deal was found by Cheapflights users on 6/21. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 10/121:58 pm
STS
- YYZ
2 stops16h 47m
Multiple Airlines
Sun 10/188:35 pm
YYZ
- STS
1 stop22h 37m
Multiple Airlines
Deal found 6/21![Multiple Airlines logo]()
$582
This American Airlines deal was found by Cheapflights users on 6/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/3112:58 pm
STS
- YUL
2 stops19h 45m
American Airlines
Tue 9/85:34 pm
YUL
- STS
2 stops21h 52m
American Airlines
Deal found 6/20![American Airlines logo]()
$835
This American Airlines deal was found by Cheapflights users on 6/18. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 8/2112:39 pm
STS
- YUL
1 stop23h 05m
American Airlines
Mon 8/243:45 pm
YUL
- STS
1 stop23h 24m
American Airlines
Deal found 6/18![American Airlines logo]()
$851
Best flights from Santa Rosa to OntarioDiscover carefully curated flight deals from Santa Rosa to Ontario that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated June 22, 2026.
Discover carefully curated flight deals from Santa Rosa to Ontario that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated June 22, 2026.
This Kiwi.com deal was found by Cheapflights users on 6/19. Clicking the “Pick Dates” 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 7/151:06 pm
STS
- YYZ
2 stops13h 04m
Multiple Airlines
Tue 7/217:00 am
YYZ
- STS
1 stop13h 16m
Multiple Airlines
Deal found 6/19![Multiple Airlines logo]()
$556
This American Airlines deal was found by Cheapflights users on 6/19. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 7/154:12 pm
STS
- YYZ
2 stops15h 06m
American Airlines
Tue 7/216:15 am
YYZ
- STS
2 stops12h 27m
American Airlines
Deal found 6/19![American Airlines logo]()
$644
This Alaska Airlines deal was found by Cheapflights users on 6/18. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/107:00 am
STS
- YYZ
1 stop29h 45m
Alaska Airlines
Fri 10/164:55 pm
YYZ
- STS
1 stop23h 11m
Alaska Airlines
Deal found 6/18![Alaska Airlines logo]()
$721
This Kiwi.com deal was found by Cheapflights users on 6/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 7/201:06 pm
STS
- YYZ
2 stops19h 49m
Multiple Airlines
Wed 7/228:35 pm
YYZ
- STS
1 stop23h 41m
Multiple Airlines
Deal found 6/20![Multiple Airlines logo]()
$629
This Kiwi.com deal was found by Cheapflights users on 6/20. Clicking the “Pick Dates” 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.
Tue 7/211:06 pm
STS
- YYZ
1 stop14h 33m
Multiple Airlines
Thu 7/238:35 pm
YYZ
- STS
1 stop23h 41m
Multiple Airlines
Deal found 6/20![Multiple Airlines logo]()
$640
This American Airlines deal was found by Cheapflights users on 6/21. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/234:20 pm
STS
- YYZ
2 stops17h 10m
American Airlines
Tue 10/276:46 am
YYZ
- STS
1 stop8h 26m
American Airlines
Deal found 6/21![American Airlines logo]()
$725
This American Airlines deal was found by Cheapflights users on 6/21. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/234:20 pm
STS
- YYZ
2 stops17h 10m
American Airlines
Wed 10/286:20 am
YYZ
- STS
2 stops12h 27m
American Airlines
Deal found 6/21![American Airlines logo]()
$730
This American Airlines deal was found by Cheapflights users on 6/18. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/104:20 pm
STS
- YYZ
2 stops15h 25m
American Airlines
Sat 10/177:20 pm
YYZ
- STS
2 stops19h 52m
American Airlines
Deal found 6/18![American Airlines logo]()
$730
This American Airlines deal was found by Cheapflights users on 6/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 7/1912:43 pm
STS
- YYZ
1 stop22h 14m
American Airlines
Thu 7/236:46 am
YYZ
- STS
1 stop8h 17m
American Airlines
Deal found 6/20![American Airlines logo]()
$750
This American Airlines deal was found by Cheapflights users on 6/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 7/1912:43 pm
STS
- YYZ
1 stop22h 14m
American Airlines
Tue 7/216:46 am
YYZ
- STS
1 stop8h 17m
American Airlines
Deal found 6/20![American Airlines logo]()
$750
This American Airlines deal was found by Cheapflights users on 6/22. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 8/74:08 pm
STS
- YYZ
2 stops15h 51m
American Airlines
Sun 8/96:00 am
YYZ
- STS
2 stops12h 47m
American Airlines
Deal found 6/22![American Airlines logo]()
$755
This American Airlines deal was found by Cheapflights users on 6/18. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 8/2112:39 pm
STS
- YUL
1 stop23h 05m
American Airlines
Mon 8/243:45 pm
YUL
- STS
1 stop23h 24m
American Airlines
Deal found 6/18![American Airlines logo]()
$851
This American Airlines deal was found by Cheapflights users on 6/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/3112:58 pm
STS
- YUL
2 stops19h 45m
American Airlines
Wed 9/95:34 pm
YUL
- STS
2 stops21h 52m
American Airlines
Deal found 6/20![American Airlines logo]()
$854
This American Airlines deal was found by Cheapflights users on 6/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 7/312:43 pm
STS
- YUL
2 stops20h 00m
American Airlines
Thu 7/233:48 pm
YUL
- STS
1 stop23h 15m
American Airlines
Deal found 6/20![American Airlines logo]()
$860
This American Airlines deal was found by Cheapflights users on 6/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 7/34:12 pm
STS
- YUL
2 stops16h 31m
American Airlines
Mon 7/201:05 pm
YUL
- STS
2 stops25h 58m
American Airlines
Deal found 6/20![American Airlines logo]()
$865
This American Airlines deal was found by Cheapflights users on 6/21. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 8/64:08 pm
STS
- YUL
2 stops16h 35m
American Airlines
Thu 8/135:34 pm
YUL
- STS
2 stops21h 54m
American Airlines
Deal found 6/21![American Airlines logo]()
$866
This American Airlines deal was found by Cheapflights users on 6/22. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/1412:35 pm
STS
- YUL
1 stop23h 09m
American Airlines
Tue 10/206:00 pm
YUL
- STS
2 stops21h 21m
American Airlines
Deal found 6/22![American Airlines logo]()
$878
This American Airlines deal was found by Cheapflights users on 6/22. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/1512:35 pm
STS
- YUL
1 stop23h 09m
American Airlines
Tue 10/206:00 pm
YUL
- STS
2 stops21h 21m
American Airlines
Deal found 6/22![American Airlines logo]()
$878
This American Airlines deal was found by Cheapflights users on 6/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/3112:39 pm
STS
- YUL
1 stop23h 05m
American Airlines
Tue 9/85:34 pm
YUL
- STS
2 stops21h 52m
American Airlines
Deal found 6/20![American Airlines logo]()
$878
This American Airlines deal was found by Cheapflights users on 6/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 8/3012:58 pm
STS
- YUL
2 stops24h 55m
American Airlines
Fri 9/113:45 pm
YUL
- STS
1 stop23h 24m
American Airlines
Deal found 6/20![American Airlines logo]()
$929
This American Airlines deal was found by Cheapflights users on 6/22. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 7/154:12 pm
STS
- YUL
2 stops16h 31m
American Airlines
Wed 7/223:48 pm
YUL
- STS
1 stop23h 15m
American Airlines
Deal found 6/22![American Airlines logo]()
$979
This American Airlines deal was found by Cheapflights users on 6/19. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 7/3012:43 pm
STS
- YOW
2 stops28h 57m
American Airlines
Mon 8/108:40 am
YOW
- STS
2 stops30h 29m
American Airlines
Deal found 6/19![American Airlines logo]()
$1,650
This American Airlines deal was found by Cheapflights users on 6/19. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 7/3012:43 pm
STS
- YOW
2 stops28h 57m
American Airlines
Sun 8/97:00 am
YOW
- STS
2 stops32h 09m
American Airlines
Deal found 6/19![American Airlines logo]()
$1,659
This American Airlines deal was found by Cheapflights users on 6/19. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 7/3112:43 pm
STS
- YOW
2 stops32h 42m
American Airlines
Sat 8/87:00 am
YOW
- STS
2 stops32h 09m
American Airlines
Deal found 6/19![American Airlines logo]()
$1,683
This American Airlines deal was found by Cheapflights users on 6/19. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 7/3112:43 pm
STS
- YOW
2 stops32h 42m
American Airlines
Sun 8/97:00 am
YOW
- STS
2 stops32h 09m
American Airlines
Deal found 6/19![American Airlines logo]()
$1,683
Last-minute flights from Santa Rosa to OntarioDiscover last-minute flight deals from Santa Rosa to Ontario. Data last updated June 22, 2026 and is based on user searches.
Discover last-minute flight deals from Santa Rosa to Ontario. Data last updated June 22, 2026 and is based on user searches.
This American Airlines deal was found by Cheapflights users on 6/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 7/34:12 pm
STS
- YUL
2 stops16h 31m
American Airlines
Mon 7/203:48 pm
YUL
- STS
1 stop23h 15m
American Airlines
Deal found 6/20![American Airlines logo]()
$860
This American Airlines deal was found by Cheapflights users on 6/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 7/34:12 pm
STS
- YUL
2 stops16h 31m
American Airlines
Wed 7/221:05 pm
YUL
- STS
2 stops25h 58m
American Airlines
Deal found 6/20![American Airlines logo]()
$865
This Kiwi.com deal was found by Cheapflights users on 6/19. Clicking the “Pick Dates” 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 7/151:06 pm
STS
- YYZ
2 stops13h 04m
Multiple Airlines
Tue 7/217:00 am
YYZ
- STS
1 stop13h 16m
Multiple Airlines
Deal found 6/19![Multiple Airlines logo]()
$556
This Kiwi.com deal was found by Cheapflights users on 6/20. Clicking the “Pick Dates” 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 7/171:06 pm
STS
- YYZ
2 stops13h 39m
Multiple Airlines
Mon 7/208:35 pm
YYZ
- STS
1 stop23h 41m
Multiple Airlines
Deal found 6/20![Multiple Airlines logo]()
$580
This Kiwi.com deal was found by Cheapflights users on 6/20. Clicking the “Pick Dates” 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 7/181:06 pm
STS
- YYZ
2 stops13h 39m
Multiple Airlines
Mon 7/208:35 pm
YYZ
- STS
1 stop23h 41m
Multiple Airlines
Deal found 6/20![Multiple Airlines logo]()
$509
This Kiwi.com deal was found by Cheapflights users on 6/20. Clicking the “Pick Dates” 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 7/181:06 pm
STS
- YYZ
2 stops13h 39m
Multiple Airlines
Fri 7/248:35 pm
YYZ
- STS
1 stop23h 41m
Multiple Airlines
Deal found 6/20![Multiple Airlines logo]()
$523
This Kiwi.com deal was found by Cheapflights users on 6/20. Clicking the “Pick Dates” 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 7/181:06 pm
STS
- YYZ
2 stops13h 39m
Multiple Airlines
Tue 7/217:00 am
YYZ
- STS
1 stop13h 16m
Multiple Airlines
Deal found 6/20![Multiple Airlines logo]()
$543
This Kiwi.com deal was found by Cheapflights users on 6/20. Clicking the “Pick Dates” 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 7/181:06 pm
STS
- YYZ
2 stops13h 39m
Multiple Airlines
Wed 7/228:35 pm
YYZ
- STS
1 stop23h 41m
Multiple Airlines
Deal found 6/20![Multiple Airlines logo]()
$576
This Kiwi.com deal was found by Cheapflights users on 6/20. Clicking the “Pick Dates” 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.
Tue 7/216:26 am
STS
- YYZ
2 stops21h 13m
Multiple Airlines
Fri 7/248:35 pm
YYZ
- STS
1 stop23h 41m
Multiple Airlines
Deal found 6/20![Multiple Airlines logo]()
$539
This Kiwi.com deal was found by Cheapflights users on 6/20. Clicking the “Pick Dates” 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 7/221:06 pm
STS
- YYZ
1 stop14h 33m
Multiple Airlines
Fri 7/243:50 pm
YYZ
- STS
2 stops28h 26m
Multiple Airlines
Deal found 6/20![Multiple Airlines logo]()
$522
This Kiwi.com deal was found by Cheapflights users on 6/20. Clicking the “Pick Dates” 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 7/221:06 pm
STS
- YYZ
1 stop14h 33m
Multiple Airlines
Thu 7/238:35 pm
YYZ
- STS
2 stops29h 23m
Multiple Airlines
Deal found 6/20![Multiple Airlines logo]()
$591
This Kiwi.com deal was found by Cheapflights users on 6/20. Clicking the “Pick Dates” 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 7/231:06 pm
STS
- YYZ
2 stops13h 04m
Multiple Airlines
Fri 7/248:35 pm
YYZ
- STS
1 stop23h 41m
Multiple Airlines
Deal found 6/20![Multiple Airlines logo]()
$544
One-way flights from Santa Rosa to OntarioSearch for one-way flight options from Santa Rosa to Ontario. Find affordable one-way fares based on user searches. Data last updated June 22, 2026.
Search for one-way flight options from Santa Rosa to Ontario. Find affordable one-way fares based on user searches. Data last updated June 22, 2026.
This Delta deal was found by Cheapflights users on 6/20. Clicking the “Pick Dates” 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 10/74:55 pm
STS
- YUL
2 stops27h 56m
Delta
Deal found 6/20![Delta logo]()
$296
This American Airlines deal was found by Cheapflights users on 6/22. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/44:08 pm
STS
- YYZ
2 stops15h 09m
American Airlines
Deal found 6/22![American Airlines logo]()
$297
This Delta deal was found by Cheapflights users on 6/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/611:25 am
STS
- YUL
2 stops33h 26m
Delta
Deal found 6/20![Delta logo]()
$311
This Kiwi.com deal was found by Cheapflights users on 6/22. Clicking the “Pick Dates” 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 9/41:40 pm
STS
- YYZ
3 stops31h 19m
Multiple Airlines
Deal found 6/22![Multiple Airlines logo]()
$325
This American Airlines deal was found by Cheapflights users on 6/21. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 7/154:12 pm
STS
- YYZ
2 stops17h 25m
American Airlines
Deal found 6/21![American Airlines logo]()
$334
This American Airlines deal was found by Cheapflights users on 6/21. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 7/164:12 pm
STS
- YYZ
2 stops19h 47m
American Airlines
Deal found 6/21![American Airlines logo]()
$340
This Delta deal was found by Cheapflights users on 6/20. Clicking the “Pick Dates” 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 10/911:25 am
STS
- YUL
2 stops33h 26m
Delta
Deal found 6/20![Delta logo]()
$340
This American Airlines deal was found by Cheapflights users on 6/18. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 7/410:22 am
STS
- YYZ
2 stops23h 14m
American Airlines
Deal found 6/18![American Airlines logo]()
$345
This Alaska Airlines deal was found by Cheapflights users on 6/21. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/155:34 pm
STS
- YYZ
1 stop19h 11m
Alaska Airlines
Deal found 6/21![Alaska Airlines logo]()
$369
This American Airlines deal was found by Cheapflights users on 6/21. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 7/2712:43 pm
STS
- YYZ
1 stop22h 14m
American Airlines
Deal found 6/21![American Airlines logo]()
$370
This Kiwi.com deal was found by Cheapflights users on 6/21. Clicking the “Pick Dates” 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 7/126:26 am
STS
- YUL
2 stops32h 49m
Multiple Airlines
Deal found 6/21![Multiple Airlines logo]()
$374
This American Airlines deal was found by Cheapflights users on 6/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/312:56 pm
STS
- YUL
2 stops19h 48m
American Airlines
Deal found 6/20![American Airlines logo]()
$406
Find flight deals from Santa Rosa to Ontario
Keep the following information in mind while searching for Santa Rosa to Ontario flight deals. Data was last updated June 22, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $509 (Kiwi.com) |
One-way from | $296 (Delta) |
Popular in | December |
Cheapest in | January |
Average price | $559 |
Cheapflights Fare Finder
Customize your flight search to find flights from Santa Rosa to Ontario 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 22, 2026.
Use the filters below to find and compare flights from Santa Rosa to Ontario that are best for you.
Fly from
Fly to
Route
Depart
Return
Cheapest round-trip
Santa RosaToronto
STS - YYZ
STSYYZ
Santa Rosa Sonoma County
Wed 7/15
1:06 pm-5:10 am
2 stops13h 04m
Toronto Pearson Intl
Tue 7/21
7:00 am-5:16 pm
1 stop13h 16m
$556
Santa RosaToronto
STS - YYZ
STSYYZ
Santa Rosa Sonoma County
Mon 7/20
1:06 pm-11:55 am
2 stops19h 49m
Toronto Pearson Intl
Wed 7/22
8:35 pm-5:16 pm
1 stop23h 41m
$629
Santa RosaToronto
STS - YYZ
STSYYZ
Santa Rosa Sonoma County
Tue 7/21
1:06 pm-6:39 am
1 stop14h 33m
Toronto Pearson Intl
Thu 7/23
8:35 pm-5:16 pm
1 stop23h 41m
$640
Santa RosaToronto
STS - YYZ
STSYYZ
Santa Rosa Sonoma County
Wed 7/15
4:12 pm-10:18 am
2 stops15h 06m
Toronto Pearson Intl
Tue 7/21
6:15 am-3:42 pm
2 stops12h 27m
$644
Santa RosaToronto
STS - YYZ
STSYYZ
Santa Rosa Sonoma County
Sat 10/10
7:00 am-3:45 pm
1 stop29h 45m
Toronto Pearson Intl
Fri 10/16
4:55 pm-1:06 pm
1 stop23h 11m
$721
Quickest round-trip
Santa RosaToronto
STS - YYZ
STSYYZ
Santa Rosa Sonoma County
Fri 10/23
4:20 pm-12:30 pm
2 stops17h 10m
Toronto Pearson Intl
Tue 10/27
6:46 am-12:12 pm
1 stop8h 26m
$725
Santa RosaToronto
STS - YYZ
STSYYZ
Santa Rosa Sonoma County
Fri 10/23
4:20 pm-12:30 pm
2 stops17h 10m
Toronto Pearson Intl
Wed 10/28
6:20 am-3:47 pm
2 stops12h 27m
$730
Santa RosaToronto
STS - YYZ
STSYYZ
Santa Rosa Sonoma County
Sat 10/10
4:20 pm-10:45 am
2 stops15h 25m
Toronto Pearson Intl
Sat 10/17
7:20 pm-12:12 pm
2 stops19h 52m
$730
Santa RosaToronto
STS - YYZ
STSYYZ
Santa Rosa Sonoma County
Sun 7/19
12:43 pm-1:57 pm
1 stop22h 14m
Toronto Pearson Intl
Thu 7/23
6:46 am-12:03 pm
1 stop8h 17m
$750
Santa RosaToronto
STS - YYZ
STSYYZ
Santa Rosa Sonoma County
Sun 7/19
12:43 pm-1:57 pm
1 stop22h 14m
Toronto Pearson Intl
Tue 7/21
6:46 am-12:03 pm
1 stop8h 17m
$750
Showing 1-10 of 44 resultsSorted by cheapest first
Best time to book a flight from Santa Rosa to Ontario
Have a flexible travel schedule? Discover the best time to fly to Ontario from Santa Rosa with our price prediction graph.
STS-YUL
STS-YYZ
STS-YOW
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 Santa Rosa to Ontario
STS-CAON
STS-YUL
STS-YYZ
STS-YOW
No data available for this route at this time. Please check back soon.
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