$272+ Cheap flights from Ontario to Santa Rosa (STS)
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 6/15. Fares are subject to change and may not be available on all flights or dates of travel.
YYZ — STS
May 31 — Jun 71
Round-trip
1 adult, Economy
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Find cheap flights from Ontario to Santa Rosa 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
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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 Santa Rosa
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Cheapest flights from Ontario to Santa RosaExplore the most affordable flight options available from Ontario to Santa Rosa. Find the lowest fares from popular airlines and budget airlines, with prices last updated on May 1, 2026.
Explore the most affordable flight options available from Ontario to Santa Rosa. Find the lowest fares from popular airlines and budget airlines, with prices last updated on May 1, 2026.
This Kiwi.com deal was found by Cheapflights users on 5/1. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 6/159:45 am
YYZ
- STS
1 stop10h 31m
Multiple Airlines
Wed 6/171:06 pm
STS
- YYZ
2 stops13h 04m
Multiple Airlines
Deal found 5/1![Multiple Airlines logo]()
$572
This American Airlines deal was found by Cheapflights users on 4/30. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 5/236:46 am
YYZ
- STS
1 stop8h 17m
American Airlines
Sat 5/304:20 pm
STS
- YYZ
2 stops14h 58m
American Airlines
Deal found 4/30![American Airlines logo]()
$586
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.
Tue 5/191:15 pm
YYZ
- STS
2 stops29h 38m
American Airlines
Tue 5/264:20 pm
STS
- YYZ
2 stops15h 39m
American Airlines
Deal found 4/26![American Airlines logo]()
$639
This American Airlines deal was found by Cheapflights users on 4/28. Clicking the “Pick Dates” 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 6/83:13 pm
YYZ
- STS
2 stops24h 26m
American Airlines
Tue 6/161:09 pm
STS
- YYZ
2 stops18h 49m
American Airlines
Deal found 4/28![American Airlines logo]()
$640
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.
Mon 6/13:10 pm
YYZ
- STS
2 stops23h 53m
American Airlines
Fri 6/51:09 pm
STS
- YYZ
2 stops21h 48m
American Airlines
Deal found 4/27![American Airlines logo]()
$656
This American Airlines deal was found by Cheapflights users on 4/28. Clicking the “Pick Dates” 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 6/83:13 pm
YYZ
- STS
2 stops24h 26m
American Airlines
Sun 6/144:20 pm
STS
- YYZ
2 stops19h 13m
American Airlines
Deal found 4/28![American Airlines logo]()
$657
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.
Tue 5/191:15 pm
YYZ
- STS
2 stops29h 38m
American Airlines
Sat 5/231:03 pm
STS
- YYZ
2 stops18h 15m
American Airlines
Deal found 4/26![American Airlines logo]()
$662
This American Airlines deal was found by Cheapflights users on 4/28. Clicking the “Pick Dates” 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 6/83:13 pm
YYZ
- STS
2 stops24h 26m
American Airlines
Mon 6/154:20 pm
STS
- YYZ
2 stops19h 13m
American Airlines
Deal found 4/28![American Airlines logo]()
$663
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 6/51:15 pm
YYZ
- STS
2 stops26h 24m
American Airlines
Sat 6/64:20 pm
STS
- YYZ
2 stops19h 13m
American Airlines
Deal found 4/27![American Airlines logo]()
$667
This American Airlines deal was found by Cheapflights users on 4/28. Clicking the “Pick Dates” 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 6/133:13 pm
YYZ
- STS
2 stops24h 26m
American Airlines
Sun 6/144:20 pm
STS
- YYZ
2 stops19h 13m
American Airlines
Deal found 4/28![American Airlines logo]()
$668
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.
Mon 6/156:24 pm
YYZ
- STS
2 stops20h 41m
American Airlines
Mon 6/221:09 pm
STS
- YYZ
2 stops20h 26m
American Airlines
Deal found 4/26![American Airlines logo]()
$671
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.
Tue 6/26:15 am
YYZ
- STS
2 stops12h 35m
American Airlines
Sun 6/71:09 pm
STS
- YYZ
2 stops18h 49m
American Airlines
Deal found 4/27![American Airlines logo]()
$672
Best flights from Ontario to Santa RosaDiscover carefully curated flight deals from Ontario to Santa Rosa that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated May 1, 2026.
Discover carefully curated flight deals from Ontario to Santa Rosa that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated May 1, 2026.
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.
Mon 5/1812:34 pm
YYZ
- STS
2 stops26h 52m
American Airlines
Tue 5/264:20 pm
STS
- YYZ
2 stops19h 10m
American Airlines
Deal found 4/26![American Airlines logo]()
$662
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 6/56:24 pm
YYZ
- STS
2 stops20h 41m
American Airlines
Wed 6/101:09 pm
STS
- YYZ
2 stops18h 49m
American Airlines
Deal found 4/27![American Airlines logo]()
$672
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 6/66:46 am
YYZ
- STS
1 stop8h 19m
American Airlines
Sat 6/64:20 pm
STS
- YYZ
2 stops19h 13m
American Airlines
Deal found 4/27![American Airlines logo]()
$672
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 6/66:46 am
YYZ
- STS
1 stop8h 19m
American Airlines
Sun 6/71:09 pm
STS
- YYZ
2 stops26h 35m
American Airlines
Deal found 4/27![American Airlines logo]()
$672
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.
Wed 6/178:10 am
YYZ
- STS
2 stops10h 40m
American Airlines
Fri 6/2612:45 pm
STS
- YYZ
2 stops19h 13m
American Airlines
Deal found 4/26![American Airlines logo]()
$672
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 6/38:10 am
YYZ
- STS
2 stops10h 40m
American Airlines
Mon 6/81:09 pm
STS
- YYZ
2 stops20h 26m
American Airlines
Deal found 4/27![American Airlines logo]()
$672
This American Airlines deal was found by Cheapflights users on 4/28. Clicking the “Pick Dates” 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 5/226:18 pm
YYZ
- STS
1 stop20h 45m
American Airlines
Wed 5/2712:43 pm
STS
- YYZ
2 stops19h 16m
American Airlines
Deal found 4/28![American Airlines logo]()
$693
This American Airlines deal was found by Cheapflights users on 4/28. Clicking the “Pick Dates” 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 5/2111:52 am
YYZ
- STS
2 stops27h 11m
American Airlines
Wed 5/2712:43 pm
STS
- YYZ
2 stops19h 16m
American Airlines
Deal found 4/28![American Airlines logo]()
$698
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 6/254:17 pm
YYZ
- STS
2 stops22h 48m
American Airlines
Sat 7/49:58 am
STS
- YYZ
2 stops25h 36m
American Airlines
Deal found 4/27![American Airlines logo]()
$709
This American Airlines deal was found by Cheapflights users on 4/30. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 7/42:55 pm
YYZ
- STS
1 stop24h 08m
American Airlines
Fri 7/1012:43 pm
STS
- YYZ
2 stops26h 57m
American Airlines
Deal found 4/30![American Airlines logo]()
$713
This American Airlines deal was found by Cheapflights users on 4/28. Clicking the “Pick Dates” 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 5/216:46 am
YYZ
- STS
1 stop8h 17m
American Airlines
Mon 5/251:03 pm
STS
- YYZ
2 stops18h 56m
American Airlines
Deal found 4/28![American Airlines logo]()
$717
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 5/166:20 pm
YYZ
- STS
2 stops21h 06m
American Airlines
Sat 5/234:20 pm
STS
- YYZ
2 stops14h 58m
American Airlines
Deal found 4/26![American Airlines logo]()
$722
This American Airlines deal was found by Cheapflights users on 4/28. Clicking the “Pick Dates” 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 5/213:48 pm
YUL
- STS
1 stop23h 15m
American Airlines
Wed 5/274:20 pm
STS
- YUL
2 stops17h 08m
American Airlines
Deal found 4/28![American Airlines logo]()
$767
Last-minute flights from Ontario to Santa RosaDiscover last-minute flight deals from Ontario to Santa Rosa. Data last updated May 1, 2026 and is based on user searches.
Discover last-minute flight deals from Ontario to Santa Rosa. Data last updated May 1, 2026 and is based on user searches.
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.
Thu 5/143:13 pm
YYZ
- STS
2 stops24h 13m
American Airlines
Tue 5/264:20 pm
STS
- YYZ
2 stops15h 39m
American Airlines
Deal found 4/26![American Airlines logo]()
$717
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.
Fri 5/157:15 pm
YYZ
- STS
2 stops20h 11m
American Airlines
Tue 5/264:20 pm
STS
- YYZ
2 stops15h 39m
American Airlines
Deal found 4/26![American Airlines logo]()
$702
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 5/166:20 pm
YYZ
- STS
2 stops21h 06m
American Airlines
Tue 5/264:20 pm
STS
- YYZ
2 stops15h 39m
American Airlines
Deal found 4/26![American Airlines logo]()
$699
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.
Mon 5/182:45 pm
YYZ
- STS
2 stops24h 41m
American Airlines
Sun 5/244:20 pm
STS
- YYZ
2 stops18h 37m
American Airlines
Deal found 4/26![American Airlines logo]()
$685
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.
Tue 5/191:15 pm
YYZ
- STS
2 stops29h 38m
American Airlines
Tue 5/264:20 pm
STS
- YYZ
2 stops15h 39m
American Airlines
Deal found 4/26![American Airlines logo]()
$639
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.
Tue 5/191:15 pm
YYZ
- STS
2 stops29h 38m
American Airlines
Sat 5/231:03 pm
STS
- YYZ
2 stops18h 15m
American Airlines
Deal found 4/26![American Airlines logo]()
$662
This Kiwi.com deal was found by Cheapflights users on 4/30. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 5/199:40 am
YYZ
- STS
1 stop13h 19m
Multiple Airlines
Thu 5/217:50 am
STS
- YYZ
2 stops14h 15m
Multiple Airlines
Deal found 4/30![Multiple Airlines logo]()
$710
This American Airlines deal was found by Cheapflights users on 4/28. Clicking the “Pick Dates” 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 5/216:46 am
YYZ
- STS
1 stop8h 17m
American Airlines
Tue 5/264:20 pm
STS
- YYZ
2 stops17h 14m
American Airlines
Deal found 4/28![American Airlines logo]()
$693
This American Airlines deal was found by Cheapflights users on 4/28. Clicking the “Pick Dates” 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 5/2111:52 am
YYZ
- STS
2 stops27h 11m
American Airlines
Wed 5/2712:43 pm
STS
- YYZ
2 stops19h 16m
American Airlines
Deal found 4/28![American Airlines logo]()
$698
This American Airlines deal was found by Cheapflights users on 4/28. Clicking the “Pick Dates” 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 5/213:48 pm
YUL
- STS
1 stop23h 15m
American Airlines
Wed 5/274:20 pm
STS
- YUL
2 stops17h 08m
American Airlines
Deal found 4/28![American Airlines logo]()
$767
This American Airlines deal was found by Cheapflights users on 4/28. Clicking the “Pick Dates” 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 5/226:18 pm
YYZ
- STS
1 stop20h 45m
American Airlines
Mon 5/251:03 pm
STS
- YYZ
2 stops21h 54m
American Airlines
Deal found 4/28![American Airlines logo]()
$718
This American Airlines deal was found by Cheapflights users on 4/30. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 5/236:46 am
YYZ
- STS
1 stop8h 17m
American Airlines
Sat 5/304:20 pm
STS
- YYZ
2 stops14h 58m
American Airlines
Deal found 4/30![American Airlines logo]()
$586
One-way flights from Ontario to Santa RosaSearch for one-way flight options from Ontario to Santa Rosa. Find affordable one-way fares based on user searches. Data last updated May 1, 2026.
Search for one-way flight options from Ontario to Santa Rosa. Find affordable one-way fares based on user searches. Data last updated May 1, 2026.
This Kiwi.com deal was found by Cheapflights users on 5/1. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 6/1510:30 pm
YYZ
- STS
2 stops21h 46m
Multiple Airlines
Deal found 5/1![Multiple Airlines logo]()
$272
This Porter Airlines deal was found by Cheapflights users on 4/29. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Porter Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/209:30 am
YYZ
- STS
1 stop9h 17m
Porter Airlines
Deal found 4/29![Porter Airlines logo]()
$281
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.
Thu 6/1110:30 pm
YYZ
- STS
2 stops21h 46m
Multiple Airlines
Deal found 4/27![Multiple Airlines logo]()
$292
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.
Fri 10/166:45 am
YUL
- STS
3 stops34h 40m
Multiple Airlines
Deal found 4/26![Multiple Airlines logo]()
$331
This Porter Airlines deal was found by Cheapflights users on 4/29. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Porter Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 10/189:30 am
YYZ
- STS
1 stop9h 17m
Porter Airlines
Deal found 4/29![Porter Airlines logo]()
$335
This American Airlines deal was found by Cheapflights users on 4/30. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 6/287:25 pm
YYZ
- STS
2 stops19h 40m
American Airlines
Deal found 4/30![American Airlines logo]()
$343
This American Airlines deal was found by Cheapflights users on 4/28. Clicking the “Pick Dates” 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 7/225:29 pm
YUL
- STS
2 stops21h 34m
American Airlines
Deal found 4/28![American Airlines logo]()
$361
This American Airlines deal was found by Cheapflights users on 4/28. Clicking the “Pick Dates” 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 5/281:03 pm
YUL
- STS
2 stops26h 30m
American Airlines
Deal found 4/28![American Airlines logo]()
$367
This Porter Airlines deal was found by Cheapflights users on 4/29. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Porter Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/229:30 am
YYZ
- STS
1 stop9h 17m
Porter Airlines
Deal found 4/29![Porter Airlines logo]()
$369
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.
Fri 10/163:45 pm
YUL
- STS
1 stop23h 27m
American Airlines
Deal found 4/26![American Airlines logo]()
$371
This American Airlines deal was found by Cheapflights users on 4/29. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 6/227:25 am
YYZ
- STS
2 stops32h 14m
American Airlines
Deal found 4/29![American Airlines logo]()
$374
This American Airlines deal was found by Cheapflights users on 4/29. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 6/236:18 pm
YYZ
- STS
1 stop20h 47m
American Airlines
Deal found 4/29![American Airlines logo]()
$382
Find flight deals from Ontario to Santa Rosa
Keep the following information in mind while searching for Ontario to Santa Rosa flight deals. Data was last updated May 1, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $572 (Kiwi.com) |
One-way from | $272 (Kiwi.com) |
Popular in | December |
Cheapest in | November |
Average price | $373 |
Cheapflights Fare Finder
Customize your flight search to find flights from Ontario to Santa Rosa 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 May 1, 2026.
Use the filters below to find and compare flights from Ontario to Santa Rosa that are best for you.
Fly from
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Route
Depart
Return
Cheapest round-trip
TorontoSanta Rosa
YYZ - STS
YYZSTS
Toronto Pearson Intl
Mon 5/18
12:34 pm-12:26 pm
2 stops26h 52m
Santa Rosa Sonoma County
Tue 5/26
4:20 pm-2:30 pm
2 stops19h 10m
$662
TorontoSanta Rosa
YYZ - STS
YYZSTS
Toronto Pearson Intl
Fri 6/5
6:24 pm-12:05 pm
2 stops20h 41m
Santa Rosa Sonoma County
Wed 6/10
1:09 pm-10:58 am
2 stops18h 49m
$672
TorontoSanta Rosa
YYZ - STS
YYZSTS
Toronto Pearson Intl
Sat 6/6
6:46 am-12:05 pm
1 stop8h 19m
Santa Rosa Sonoma County
Sat 6/6
4:20 pm-2:33 pm
2 stops19h 13m
$672
TorontoSanta Rosa
YYZ - STS
YYZSTS
Toronto Pearson Intl
Sat 6/6
6:46 am-12:05 pm
1 stop8h 19m
Santa Rosa Sonoma County
Sun 6/7
1:09 pm-6:44 pm
2 stops26h 35m
$672
TorontoSanta Rosa
YYZ - STS
YYZSTS
Toronto Pearson Intl
Wed 6/17
8:10 am-3:50 pm
2 stops10h 40m
Santa Rosa Sonoma County
Fri 6/26
12:45 pm-10:58 am
2 stops19h 13m
$672
TorontoSanta Rosa
YYZ - STS
YYZSTS
Toronto Pearson Intl
Wed 6/3
8:10 am-3:50 pm
2 stops10h 40m
Santa Rosa Sonoma County
Mon 6/8
1:09 pm-12:35 pm
2 stops20h 26m
$672
TorontoSanta Rosa
YYZ - STS
YYZSTS
Toronto Pearson Intl
Fri 5/22
6:18 pm-12:03 pm
1 stop20h 45m
Santa Rosa Sonoma County
Wed 5/27
12:43 pm-10:59 am
2 stops19h 16m
$693
TorontoSanta Rosa
YYZ - STS
YYZSTS
Toronto Pearson Intl
Thu 5/21
11:52 am-12:03 pm
2 stops27h 11m
Santa Rosa Sonoma County
Wed 5/27
12:43 pm-10:59 am
2 stops19h 16m
$698
TorontoSanta Rosa
YYZ - STS
YYZSTS
Toronto Pearson Intl
Thu 6/25
4:17 pm-12:05 pm
2 stops22h 48m
Santa Rosa Sonoma County
Sat 7/4
9:58 am-2:34 pm
2 stops25h 36m
$709
TorontoSanta Rosa
YYZ - STS
YYZSTS
Toronto Pearson Intl
Sat 7/4
2:55 pm-12:03 pm
1 stop24h 08m
Santa Rosa Sonoma County
Fri 7/10
12:43 pm-6:40 pm
2 stops26h 57m
$713
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Best time to book a flight from Ontario to Santa Rosa
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YUL-STS
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Traveling to a place near Santa Rosa?
Book flights to Santa Rosa if you plan to visit one of these locationsFort Bragg
Ukiah
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