$245+ 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 6/13. Fares are subject to change and may not be available on all flights or dates of travel.
STS — YYZ
May 28 — Jun 41
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 April 28, 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 April 28, 2026.
This Kiwi.com deal was found by Cheapflights users on 4/24. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/1610:00 am
STS
- YYZ
2 stops16h 45m
Multiple Airlines
Sun 10/188:30 pm
YYZ
- STS
1 stop20h 55m
Multiple Airlines
Deal found 4/24![Multiple Airlines logo]()
$550
This Kiwi.com deal was found by Cheapflights users on 4/26. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 5/2512:05 pm
STS
- YYZ
1 stop28h 55m
Multiple Airlines
Mon 6/1510:30 pm
YYZ
- STS
2 stops21h 46m
Multiple Airlines
Deal found 4/26![Multiple Airlines logo]()
$589
This Kiwi.com deal was found by Cheapflights users on 4/25. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 5/227:50 am
STS
- YYZ
2 stops25h 05m
Multiple Airlines
Tue 5/269:40 am
YYZ
- STS
1 stop13h 19m
Multiple Airlines
Deal found 4/25![Multiple Airlines logo]()
$593
This Kiwi.com deal was found by Cheapflights users on 4/24. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 6/812:05 pm
STS
- YYZ
2 stops34h 00m
Multiple Airlines
Mon 6/158:30 pm
YYZ
- STS
1 stop23h 46m
Multiple Airlines
Deal found 4/24![Multiple Airlines logo]()
$612
This American Airlines deal was found by Cheapflights users on 4/23. Clicking the “Pick Dates” 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 5/234:20 pm
STS
- YYZ
2 stops15h 39m
American Airlines
Sat 5/306:18 pm
YYZ
- STS
1 stop20h 45m
American Airlines
Deal found 4/23![American Airlines logo]()
$616
This Kiwi.com deal was found by Cheapflights users on 4/26. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 5/268:26 pm
STS
- YYZ
2 stops31h 29m
Multiple Airlines
Tue 6/169:55 am
YYZ
- STS
1 stop10h 21m
Multiple Airlines
Deal found 4/26![Multiple Airlines logo]()
$632
This Kiwi.com deal was found by Cheapflights users on 4/27. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 6/27:59 am
STS
- YYZ
1 stop9h 36m
Multiple Airlines
Wed 6/39:40 am
YYZ
- STS
1 stop13h 19m
Multiple Airlines
Deal found 4/27![Multiple Airlines logo]()
$636
This Orbitz deal was found by Cheapflights users on 4/23. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Orbitz is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 5/128:20 am
STS
- YYZ
2 stops28h 25m
Alaska Airlines
Thu 5/144:55 pm
YYZ
- STS
2 stops21h 15m
Alaska Airlines
Deal found 4/23![Alaska Airlines logo]()
$689
This American Airlines deal was found by Cheapflights users on 4/27. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 5/2912:43 pm
STS
- YUL
1 stop23h 01m
American Airlines
Mon 6/85:33 pm
YUL
- STS
2 stops21h 32m
American Airlines
Deal found 4/27![American Airlines logo]()
$847
This American Airlines deal was found by Cheapflights users on 4/24. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 7/294:20 pm
STS
- YUL
2 stops43h 21m
American Airlines
Fri 7/315:31 pm
YUL
- STS
2 stops21h 32m
American Airlines
Deal found 4/24![American Airlines logo]()
$859
This American Airlines deal was found by Cheapflights users on 4/27. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 5/3012:43 pm
STS
- YUL
1 stop23h 01m
American Airlines
Fri 6/55:33 pm
YUL
- STS
2 stops21h 32m
American Airlines
Deal found 4/27![American Airlines logo]()
$874
This American Airlines deal was found by Cheapflights users on 4/27. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 5/291:03 pm
STS
- YUL
2 stops20h 25m
American Airlines
Fri 6/55:33 pm
YUL
- STS
2 stops21h 32m
American Airlines
Deal found 4/27![American Airlines logo]()
$879
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 April 28, 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 April 28, 2026.
This American Airlines deal was found by Cheapflights users on 4/23. Clicking the “Pick Dates” 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 5/234:20 pm
STS
- YYZ
2 stops15h 39m
American Airlines
Sat 5/306:15 am
YYZ
- STS
2 stops12h 35m
American Airlines
Deal found 4/23![American Airlines logo]()
$621
This Alaska Airlines deal was found by Cheapflights users on 4/23. Clicking the “Pick Dates” 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 5/238:26 pm
STS
- YYZ
1 stop16h 19m
Alaska Airlines
Sat 5/304:55 pm
YYZ
- STS
1 stop22h 22m
Alaska Airlines
Deal found 4/23![Alaska Airlines logo]()
$695
This Expedia deal was found by Cheapflights users on 4/27. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 6/1212:52 pm
STS
- YOW
2 stops13h 46m
Multiple Airlines
Fri 6/198:35 am
YOW
- STS
2 stops17h 16m
Multiple Airlines
Deal found 4/27![Multiple Airlines logo]()
$1,309
This Alaska Airlines deal was found by Cheapflights users on 4/25. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 6/58:26 pm
STS
- YYZ
1 stop16h 19m
Alaska Airlines
Fri 6/124:55 pm
YYZ
- STS
1 stop22h 03m
Alaska Airlines
Deal found 4/25![Alaska Airlines logo]()
$797
This American Airlines deal was found by Cheapflights users on 4/24. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/1612:35 pm
STS
- YYZ
1 stop22h 20m
American Airlines
Sun 10/186:46 am
YYZ
- STS
1 stop8h 26m
American Airlines
Deal found 4/24![American Airlines logo]()
$841
This Orbitz deal was found by Cheapflights users on 4/24. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Orbitz is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 5/128:20 am
STS
- YYZ
2 stops28h 25m
Alaska Airlines
Thu 5/144:55 pm
YYZ
- STS
2 stops18h 59m
Alaska Airlines
Deal found 4/24![Alaska Airlines logo]()
$802
This American Airlines deal was found by Cheapflights users on 4/27. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 5/301:03 pm
STS
- YUL
2 stops23h 25m
American Airlines
Mon 6/85:33 pm
YUL
- STS
2 stops21h 32m
American Airlines
Deal found 4/27![American Airlines logo]()
$852
This Alaska Airlines deal was found by Cheapflights users on 4/24. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 6/87:59 am
STS
- YYZ
2 stops28h 46m
Alaska Airlines
Mon 6/154:55 pm
YYZ
- STS
2 stops22h 31m
Alaska Airlines
Deal found 4/24![Alaska Airlines logo]()
$806
This American Airlines deal was found by Cheapflights users on 4/27. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 5/3112:43 pm
STS
- YUL
2 stops25h 10m
American Airlines
Tue 6/912:30 pm
YUL
- STS
2 stops27h 09m
American Airlines
Deal found 4/27![American Airlines logo]()
$852
This Alaska Airlines deal was found by Cheapflights users on 4/25. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 6/48:26 pm
STS
- YYZ
1 stop16h 19m
Alaska Airlines
Thu 6/114:55 pm
YYZ
- STS
1 stop8h 56m
Alaska Airlines
Deal found 4/25![Alaska Airlines logo]()
$847
This American Airlines deal was found by Cheapflights users on 4/24. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/94:21 pm
STS
- YUL
2 stops27h 23m
American Airlines
Tue 9/154:16 pm
YUL
- STS
2 stops23h 09m
American Airlines
Deal found 4/24![American Airlines logo]()
$859
This Alaska Airlines deal was found by Cheapflights users on 4/25. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 6/58:26 pm
STS
- YYZ
1 stop16h 19m
Alaska Airlines
Sun 6/144:55 pm
YYZ
- STS
1 stop22h 03m
Alaska Airlines
Deal found 4/25![Alaska Airlines logo]()
$857
This American Airlines deal was found by Cheapflights users on 4/27. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 8/124:08 pm
STS
- YYZ
2 stops19h 26m
American Airlines
Thu 8/136:28 pm
YYZ
- STS
2 stops21h 00m
American Airlines
Deal found 4/27![American Airlines logo]()
$864
This Alaska Airlines deal was found by Cheapflights users on 4/27. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/167:00 am
STS
- YYZ
1 stop29h 45m
Alaska Airlines
Sat 9/194:55 pm
YYZ
- STS
2 stops28h 23m
Alaska Airlines
Deal found 4/27![Alaska Airlines logo]()
$860
This American Airlines deal was found by Cheapflights users on 4/26. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 5/3012:43 pm
STS
- YUL
1 stop23h 01m
American Airlines
Thu 6/43:48 pm
YUL
- STS
1 stop23h 17m
American Airlines
Deal found 4/26![American Airlines logo]()
$874
This Alaska Airlines deal was found by Cheapflights users on 4/24. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 5/268:26 pm
STS
- YYZ
2 stops13h 08m
Alaska Airlines
Wed 5/273:10 pm
YYZ
- STS
2 stops31h 36m
Alaska Airlines
Deal found 4/24![Alaska Airlines logo]()
$862
This American Airlines deal was found by Cheapflights users on 4/27. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 5/3012:43 pm
STS
- YUL
1 stop23h 01m
American Airlines
Fri 6/53:48 pm
YUL
- STS
1 stop23h 17m
American Airlines
Deal found 4/27![American Airlines logo]()
$874
This American Airlines deal was found by Cheapflights users on 4/26. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 5/3112:43 pm
STS
- YUL
2 stops20h 01m
American Airlines
Thu 6/43:48 pm
YUL
- STS
1 stop23h 17m
American Airlines
Deal found 4/26![American Airlines logo]()
$884
This American Airlines deal was found by Cheapflights users on 4/24. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/1112:35 pm
STS
- YUL
1 stop23h 09m
American Airlines
Tue 9/154:16 pm
YUL
- STS
2 stops26h 31m
American Airlines
Deal found 4/24![American Airlines logo]()
$884
This American Airlines deal was found by Cheapflights users on 4/27. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 5/304:20 pm
STS
- YUL
2 stops17h 08m
American Airlines
Sun 6/73:48 pm
YUL
- STS
1 stop23h 17m
American Airlines
Deal found 4/27![American Airlines logo]()
$884
Last-minute flights from Santa Rosa to OntarioDiscover last-minute flight deals from Santa Rosa to Ontario. Data last updated April 28, 2026 and is based on user searches.
Discover last-minute flight deals from Santa Rosa to Ontario. Data last updated April 28, 2026 and is based on user searches.
This Orbitz deal was found by Cheapflights users on 4/23. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Orbitz is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 5/128:20 am
STS
- YYZ
2 stops28h 25m
Alaska Airlines
Thu 5/144:55 pm
YYZ
- STS
2 stops21h 15m
Alaska Airlines
Deal found 4/23![Alaska Airlines logo]()
$689
This Kiwi.com deal was found by Cheapflights users on 4/23. Clicking the “Pick Dates” 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 5/127:00 am
STS
- YYZ
1 stop10h 50m
Multiple Airlines
Thu 5/1412:40 pm
YYZ
- STS
2 stops32h 39m
Multiple Airlines
Deal found 4/23![Multiple Airlines logo]()
$779
This Kiwi.com deal was found by Cheapflights users on 4/25. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 5/227:50 am
STS
- YYZ
2 stops25h 05m
Multiple Airlines
Tue 5/269:40 am
YYZ
- STS
1 stop13h 19m
Multiple Airlines
Deal found 4/25![Multiple Airlines logo]()
$593
This American Airlines deal was found by Cheapflights users on 4/23. Clicking the “Pick Dates” 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 5/234:20 pm
STS
- YYZ
2 stops15h 39m
American Airlines
Sat 5/306:18 pm
YYZ
- STS
1 stop20h 45m
American Airlines
Deal found 4/23![American Airlines logo]()
$616
This Alaska Airlines deal was found by Cheapflights users on 4/23. Clicking the “Pick Dates” 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 5/238:26 pm
STS
- YYZ
1 stop16h 19m
Alaska Airlines
Sat 5/304:55 pm
YYZ
- STS
1 stop22h 22m
Alaska Airlines
Deal found 4/23![Alaska Airlines logo]()
$695
This Kiwi.com deal was found by Cheapflights users on 4/26. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 5/2512:05 pm
STS
- YYZ
1 stop28h 55m
Multiple Airlines
Mon 6/1510:30 pm
YYZ
- STS
2 stops21h 46m
Multiple Airlines
Deal found 4/26![Multiple Airlines logo]()
$589
This Kiwi.com deal was found by Cheapflights users on 4/26. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 5/268:26 pm
STS
- YYZ
2 stops31h 29m
Multiple Airlines
Tue 6/169:55 am
YYZ
- STS
1 stop10h 21m
Multiple Airlines
Deal found 4/26![Multiple Airlines logo]()
$632
This Orbitz deal was found by Cheapflights users on 4/26. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Orbitz is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 5/268:26 pm
STS
- YYZ
1 stop16h 19m
Alaska Airlines
Tue 6/164:55 pm
YYZ
- STS
1 stop22h 03m
Alaska Airlines
Deal found 4/26![Alaska Airlines logo]()
$741
This American Airlines deal was found by Cheapflights users on 4/27. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 5/2912:43 pm
STS
- YUL
1 stop23h 01m
American Airlines
Mon 6/85:33 pm
YUL
- STS
2 stops21h 32m
American Airlines
Deal found 4/27![American Airlines logo]()
$847
This American Airlines deal was found by Cheapflights users on 4/27. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 5/291:03 pm
STS
- YUL
2 stops20h 25m
American Airlines
Fri 6/55:33 pm
YUL
- STS
2 stops21h 32m
American Airlines
Deal found 4/27![American Airlines logo]()
$879
This American Airlines deal was found by Cheapflights users on 4/27. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 5/3012:43 pm
STS
- YUL
1 stop23h 01m
American Airlines
Fri 6/53:48 pm
YUL
- STS
1 stop23h 17m
American Airlines
Deal found 4/27![American Airlines logo]()
$874
This American Airlines deal was found by Cheapflights users on 4/27. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 5/3112:43 pm
STS
- YUL
2 stops20h 01m
American Airlines
Fri 6/53:48 pm
YUL
- STS
1 stop23h 17m
American Airlines
Deal found 4/27![American Airlines logo]()
$884
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 April 28, 2026.
Search for one-way flight options from Santa Rosa to Ontario. Find affordable one-way fares based on user searches. Data last updated April 28, 2026.
This Kiwi.com deal was found by Cheapflights users on 4/26. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 6/131:06 pm
STS
- YYZ
2 stops14h 49m
Multiple Airlines
Deal found 4/26![Multiple Airlines logo]()
$245
This Alaska Airlines deal was found by Cheapflights users on 4/26. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 6/58:26 pm
STS
- YYZ
1 stop16h 19m
Alaska Airlines
Deal found 4/26![Alaska Airlines logo]()
$273
This Alaska Airlines deal was found by Cheapflights users on 4/27. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 6/16:59 pm
STS
- YYZ
2 stops17h 46m
Alaska Airlines
Deal found 4/27![Alaska Airlines logo]()
$288
This Alaska Airlines deal was found by Cheapflights users on 4/26. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 6/62:53 pm
STS
- YYZ
2 stops21h 52m
Alaska Airlines
Deal found 4/26![Alaska Airlines logo]()
$301
This American Airlines deal was found by Cheapflights users on 4/25. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 6/161:09 pm
STS
- YYZ
2 stops20h 23m
American Airlines
Deal found 4/25![American Airlines logo]()
$325
This Alaska Airlines deal was found by Cheapflights users on 4/27. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 5/238:26 pm
STS
- YYZ
1 stop16h 19m
Alaska Airlines
Deal found 4/27![Alaska Airlines logo]()
$349
This Alaska Airlines deal was found by Cheapflights users on 4/27. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 5/268:26 pm
STS
- YYZ
2 stops18h 02m
Alaska Airlines
Deal found 4/27![Alaska Airlines logo]()
$351
This American Airlines deal was found by Cheapflights users on 4/27. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 5/2812:43 pm
STS
- YYZ
2 stops20h 51m
American Airlines
Deal found 4/27![American Airlines logo]()
$353
This Kiwi.com deal was found by Cheapflights users on 4/23. Clicking the “Pick Dates” 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 5/295:21 pm
STS
- YUL
2 stops28h 16m
Multiple Airlines
Deal found 4/23![Multiple Airlines logo]()
$361
This American Airlines deal was found by Cheapflights users on 4/23. Clicking the “Pick Dates” 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 5/2912:43 pm
STS
- YUL
1 stop23h 01m
American Airlines
Deal found 4/23![American Airlines logo]()
$370
This American Airlines deal was found by Cheapflights users on 4/25. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 6/61:09 pm
STS
- YUL
2 stops19h 33m
American Airlines
Deal found 4/25![American Airlines logo]()
$413
This American Airlines deal was found by Cheapflights users on 4/25. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 6/71:09 pm
STS
- YUL
2 stops30h 50m
American Airlines
Deal found 4/25![American Airlines logo]()
$418
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 April 28, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $550 (Kiwi.com) |
One-way from | $245 (Kiwi.com) |
Popular in | December |
Cheapest in | January |
Average price | $468 |
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 April 28, 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
Sat 5/23
4:20 pm-10:59 am
2 stops15h 39m
Toronto Pearson Intl
Sat 5/30
6:15 am-3:50 pm
2 stops12h 35m
$621
Santa RosaToronto
STS - YYZ
STSYYZ
Santa Rosa Sonoma County
Sat 5/23
8:26 pm-3:45 pm
1 stop16h 19m
Toronto Pearson Intl
Sat 5/30
4:55 pm-12:17 pm
1 stop22h 22m
$695
Santa RosaToronto
STS - YYZ
STSYYZ
Santa Rosa Sonoma County
Fri 6/5
8:26 pm-3:45 pm
1 stop16h 19m
Toronto Pearson Intl
Fri 6/12
4:55 pm-11:58 am
1 stop22h 03m
$797
Santa RosaToronto
STS - YYZ
STSYYZ
Santa Rosa Sonoma County
Tue 5/12
8:20 am-3:45 pm
2 stops28h 25m
Toronto Pearson Intl
Thu 5/14
4:55 pm-8:54 am
2 stops18h 59m
$802
Santa RosaToronto
STS - YYZ
STSYYZ
Santa Rosa Sonoma County
Mon 6/8
7:59 am-3:45 pm
2 stops28h 46m
Toronto Pearson Intl
Mon 6/15
4:55 pm-12:26 pm
2 stops22h 31m
$806
Santa RosaToronto
STS - YYZ
STSYYZ
Santa Rosa Sonoma County
Fri 10/16
12:35 pm-1:55 pm
1 stop22h 20m
Toronto Pearson Intl
Sun 10/18
6:46 am-12:12 pm
1 stop8h 26m
$841
Quickest round-trip
Santa RosaToronto
STS - YYZ
STSYYZ
Santa Rosa Sonoma County
Thu 6/4
8:26 pm-3:45 pm
1 stop16h 19m
Toronto Pearson Intl
Thu 6/11
4:55 pm-10:51 pm
1 stop8h 56m
$847
Santa RosaMontreal
STS - YUL
STSYUL
Santa Rosa Sonoma County
Sat 5/30
1:03 pm-3:28 pm
2 stops23h 25m
Montreal Pierre Elliott Trudeau Intl
Mon 6/8
5:33 pm-12:05 pm
2 stops21h 32m
$852
Santa RosaMontreal
STS - YUL
STSYUL
Santa Rosa Sonoma County
Sun 5/31
12:43 pm-4:53 pm
2 stops25h 10m
Montreal Pierre Elliott Trudeau Intl
Tue 6/9
12:30 pm-12:39 pm
2 stops27h 09m
$852
Santa RosaToronto
STS - YYZ
STSYYZ
Santa Rosa Sonoma County
Fri 6/5
8:26 pm-3:45 pm
1 stop16h 19m
Toronto Pearson Intl
Sun 6/14
4:55 pm-11:58 am
1 stop22h 03m
$857
Showing 1-10 of 39 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-YYZ
STS-YUL
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-YYZ
STS-YUL
STS-YOW
No data available for this route at this time. Please check back soon.
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