$330+ 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 6/24. Fares are subject to change and may not be available on all flights or dates of travel.
STS — YYZ
Jun 3 — Jun 101
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 May 4, 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 May 4, 2026.
This Kiwi.com 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 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 stops29h 09m
Multiple Airlines
Sat 6/209:55 am
YYZ
- STS
1 stop10h 21m
Multiple Airlines
Deal found 4/29![Multiple Airlines logo]()
$536
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.
Wed 6/241:06 pm
STS
- YYZ
2 stops13h 04m
Multiple Airlines
Fri 6/269:45 am
YYZ
- STS
1 stop10h 31m
Multiple Airlines
Deal found 4/30![Multiple Airlines logo]()
$623
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.
Wed 6/171:06 pm
STS
- YYZ
2 stops32h 59m
Multiple Airlines
Fri 6/269:45 am
YYZ
- STS
1 stop10h 31m
Multiple Airlines
Deal found 4/30![Multiple Airlines logo]()
$624
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.
Sat 6/201:06 pm
STS
- YYZ
2 stops32h 59m
Multiple Airlines
Fri 6/269:45 am
YYZ
- STS
1 stop10h 31m
Multiple Airlines
Deal found 4/30![Multiple Airlines logo]()
$664
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.
Wed 6/171:06 pm
STS
- YYZ
2 stops32h 59m
Multiple Airlines
Wed 6/249:55 am
YYZ
- STS
1 stop10h 21m
Multiple Airlines
Deal found 4/30![Multiple Airlines logo]()
$671
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.
Wed 6/171:06 pm
STS
- YYZ
2 stops13h 04m
Multiple Airlines
Sat 6/277:00 am
YYZ
- STS
1 stop13h 16m
Multiple Airlines
Deal found 4/30![Multiple Airlines logo]()
$686
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.
Sat 6/134:20 pm
STS
- YYZ
2 stops14h 58m
American Airlines
Sat 6/206:15 am
YYZ
- STS
2 stops12h 35m
American Airlines
Deal found 4/29![American Airlines logo]()
$695
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.
Sun 6/216:00 am
STS
- YYZ
1 stop13h 00m
Multiple Airlines
Thu 6/253:50 pm
YYZ
- STS
2 stops28h 26m
Multiple Airlines
Deal found 4/30![Multiple Airlines logo]()
$703
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.
Thu 6/256:00 am
STS
- YYZ
1 stop13h 00m
Multiple Airlines
Fri 6/266:15 am
YYZ
- STS
2 stops15h 28m
Multiple Airlines
Deal found 4/30![Multiple Airlines logo]()
$707
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.
Sat 6/201:06 pm
STS
- YYZ
2 stops32h 59m
Multiple Airlines
Wed 6/249:55 am
YYZ
- STS
1 stop10h 21m
Multiple Airlines
Deal found 4/30![Multiple Airlines logo]()
$711
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.
Wed 6/104:20 pm
STS
- YYZ
2 stops17h 15m
American Airlines
Mon 6/156:24 pm
YYZ
- STS
2 stops20h 41m
American Airlines
Deal found 4/30![American Airlines logo]()
$722
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.
Wed 6/171:06 pm
STS
- YYZ
2 stops32h 59m
Multiple Airlines
Thu 6/2511:05 am
YYZ
- STS
1 stop10h 38m
Multiple Airlines
Deal found 4/30![Multiple Airlines logo]()
$723
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 May 4, 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 May 4, 2026.
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.
Wed 6/104:20 pm
STS
- YYZ
2 stops17h 15m
American Airlines
Mon 6/156:24 pm
YYZ
- STS
2 stops20h 41m
American Airlines
Deal found 4/29![American Airlines logo]()
$725
This Alaska 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/168:07 am
STS
- YYZ
2 stops11h 52m
Alaska Airlines
Sat 9/191:10 pm
YYZ
- STS
2 stops11h 46m
Alaska Airlines
Deal found 4/30![Alaska Airlines logo]()
$753
This American Airlines deal was found by Cheapflights users on 5/2. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 6/84:20 pm
STS
- YYZ
2 stops19h 13m
American Airlines
Mon 6/156:24 pm
YYZ
- STS
2 stops20h 41m
American Airlines
Deal found 5/2![American Airlines logo]()
$750
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.
Tue 6/231:09 pm
STS
- YYZ
2 stops20h 26m
American Airlines
Mon 6/2911:39 am
YYZ
- STS
2 stops27h 26m
American Airlines
Deal found 4/30![American Airlines logo]()
$781
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.
Wed 6/241:09 pm
STS
- YYZ
2 stops20h 26m
American Airlines
Mon 6/296:18 pm
YYZ
- STS
1 stop20h 47m
American Airlines
Deal found 4/30![American Airlines logo]()
$805
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.
Wed 6/241:09 pm
STS
- YYZ
2 stops25h 35m
American Airlines
Sun 6/286:24 pm
YYZ
- STS
2 stops20h 41m
American Airlines
Deal found 4/30![American Airlines logo]()
$811
This American Airlines deal was found by Cheapflights users on 5/2. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 6/61:09 pm
STS
- YYZ
2 stops22h 24m
American Airlines
Fri 6/122:55 pm
YYZ
- STS
1 stop24h 10m
American Airlines
Deal found 5/2![American Airlines logo]()
$832
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.
Thu 6/251:09 pm
STS
- YYZ
2 stops25h 12m
American Airlines
Tue 6/306:24 pm
YYZ
- STS
2 stops20h 41m
American Airlines
Deal found 4/30![American Airlines logo]()
$832
This American Airlines deal was found by Cheapflights users on 5/2. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 6/84:20 pm
STS
- YYZ
2 stops28h 09m
American Airlines
Sat 6/136:46 am
YYZ
- STS
1 stop8h 19m
American Airlines
Deal found 5/2![American Airlines logo]()
$833
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.
Sat 7/1812:43 pm
STS
- YUL
1 stop22h 58m
American Airlines
Fri 7/243:48 pm
YUL
- STS
1 stop23h 15m
American Airlines
Deal found 4/29![American Airlines logo]()
$885
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.
Thu 8/612:39 pm
STS
- YUL
1 stop23h 05m
American Airlines
Tue 8/113:45 pm
YUL
- STS
1 stop23h 24m
American Airlines
Deal found 4/29![American Airlines logo]()
$885
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.
Wed 8/512:39 pm
STS
- YUL
2 stops42h 07m
American Airlines
Tue 8/113:45 pm
YUL
- STS
1 stop23h 24m
American Airlines
Deal found 4/29![American Airlines logo]()
$895
This American Airlines deal was found by Cheapflights users on 5/2. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 6/3012:45 pm
STS
- YUL
1 stop22h 59m
American Airlines
Sun 7/57:17 am
YUL
- STS
2 stops31h 46m
American Airlines
Deal found 5/2![American Airlines logo]()
$895
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.
Sat 7/1812:43 pm
STS
- YUL
1 stop22h 58m
American Airlines
Sat 7/255:34 pm
YUL
- STS
2 stops21h 56m
American Airlines
Deal found 4/29![American Airlines logo]()
$895
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 8/412:43 pm
STS
- YUL
1 stop23h 01m
American Airlines
Tue 8/115:34 pm
YUL
- STS
2 stops21h 54m
American Airlines
Deal found 4/29![American Airlines logo]()
$895
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 7/2012:43 pm
STS
- YUL
2 stops20h 00m
American Airlines
Fri 7/245:29 pm
YUL
- STS
2 stops22h 01m
American Airlines
Deal found 4/29![American Airlines logo]()
$900
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.
Sun 7/1912:43 pm
STS
- YUL
2 stops20h 00m
American Airlines
Sun 7/265:29 pm
YUL
- STS
2 stops22h 01m
American Airlines
Deal found 4/29![American Airlines logo]()
$900
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.
Sun 7/1912:43 pm
STS
- YUL
2 stops20h 46m
American Airlines
Sat 7/257:17 am
YUL
- STS
2 stops31h 46m
American Airlines
Deal found 4/29![American Airlines logo]()
$900
This American Airlines deal was found by Cheapflights users on 5/2. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 7/112:45 pm
STS
- YUL
2 stops31h 11m
American Airlines
Sun 7/57:17 am
YUL
- STS
2 stops31h 46m
American Airlines
Deal found 5/2![American Airlines logo]()
$900
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.
Wed 8/54:08 pm
STS
- YUL
2 stops18h 40m
American Airlines
Wed 8/127:29 am
YUL
- STS
2 stops11h 08m
American Airlines
Deal found 4/29![American Airlines logo]()
$900
Last-minute flights from Santa Rosa to OntarioDiscover last-minute flight deals from Santa Rosa to Ontario. Data last updated May 4, 2026 and is based on user searches.
Discover last-minute flight deals from Santa Rosa to Ontario. Data last updated May 4, 2026 and is based on user searches.
This Alaska 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 5/107:46 pm
STS
- YYZ
1 stop16h 59m
Alaska Airlines
Wed 5/204:55 pm
YYZ
- STS
1 stop22h 22m
Alaska Airlines
Deal found 4/28![Alaska Airlines logo]()
$1,289
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 5/1112:56 pm
STS
- YYZ
2 stops18h 33m
American Airlines
Wed 5/206:15 pm
YYZ
- STS
1 stop20h 48m
American Airlines
Deal found 4/28![American Airlines logo]()
$989
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.
Tue 5/1212:56 pm
STS
- YYZ
2 stops23h 03m
American Airlines
Wed 5/202:45 pm
YYZ
- STS
1 stop24h 18m
American Airlines
Deal found 4/28![American Airlines logo]()
$963
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 5/1412:56 pm
STS
- YYZ
2 stops22h 47m
American Airlines
Wed 5/202:45 pm
YYZ
- STS
1 stop24h 18m
American Airlines
Deal found 4/28![American Airlines logo]()
$967
This American Airlines deal was found by Cheapflights users on 5/2. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure 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 stops17h 53m
American Airlines
Thu 6/43:48 pm
YUL
- STS
1 stop23h 17m
American Airlines
Deal found 5/2![American Airlines logo]()
$906
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 May 4, 2026.
Search for one-way flight options from Santa Rosa to Ontario. Find affordable one-way fares based on user searches. Data last updated May 4, 2026.
This American Airlines 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 6/21:03 pm
STS
- YYZ
2 stops22h 27m
American Airlines
Deal found 5/1![American Airlines logo]()
$330
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 6/161:09 pm
STS
- YYZ
2 stops18h 49m
American Airlines
Deal found 4/29![American Airlines logo]()
$331
This Alaska Airlines 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 6/65:21 pm
STS
- YYZ
2 stops19h 24m
Alaska Airlines
Deal found 5/1![Alaska Airlines logo]()
$345
This Alaska Airlines 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 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 5/1![Alaska Airlines logo]()
$357
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.
Thu 5/2112:43 pm
STS
- YYZ
2 stops31h 41m
American Airlines
Deal found 4/30![American Airlines logo]()
$363
This Alaska Airlines 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 6/812:05 pm
STS
- YYZ
2 stops24h 40m
Alaska Airlines
Deal found 5/1![Alaska Airlines logo]()
$372
This Alaska Airlines 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 6/32:53 pm
STS
- YYZ
2 stops21h 52m
Alaska Airlines
Deal found 5/1![Alaska Airlines logo]()
$388
This Alaska Airlines 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 6/47:59 am
STS
- YYZ
2 stops28h 46m
Alaska Airlines
Deal found 5/1![Alaska Airlines logo]()
$393
This American Airlines deal was found by Cheapflights users on 5/3. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 7/74:12 pm
STS
- YUL
2 stops19h 29m
American Airlines
Deal found 5/3![American Airlines logo]()
$395
This Alaska Airlines 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 6/28:26 pm
STS
- YYZ
1 stop16h 19m
Alaska Airlines
Deal found 5/1![Alaska Airlines logo]()
$402
This American Airlines 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 6/121:09 pm
STS
- YYZ
2 stops22h 24m
American Airlines
Deal found 5/1![American Airlines logo]()
$418
This American Airlines deal was found by Cheapflights users on 5/2. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 7/1112:43 pm
STS
- YUL
1 stop22h 58m
American Airlines
Deal found 5/2![American Airlines logo]()
$476
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 May 4, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $536 (Kiwi.com) |
One-way from | $330 (American Airlines) |
Popular in | December |
Cheapest in | January |
Average price | $511 |
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 May 4, 2026.
Use the filters below to find and compare flights from Santa Rosa to Ontario that are best for you.
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Route
Depart
Return
Cheapest round-trip
Santa RosaToronto
STS - YYZ
STSYYZ
Santa Rosa Sonoma County
Wed 6/10
4:20 pm-12:35 pm
2 stops17h 15m
Toronto Pearson Intl
Mon 6/15
6:24 pm-12:05 pm
2 stops20h 41m
$725
Santa RosaToronto
STS - YYZ
STSYYZ
Santa Rosa Sonoma County
Mon 6/8
4:20 pm-2:33 pm
2 stops19h 13m
Toronto Pearson Intl
Mon 6/15
6:24 pm-12:05 pm
2 stops20h 41m
$750
Quickest round-trip
Santa RosaToronto
STS - YYZ
STSYYZ
Santa Rosa Sonoma County
Wed 9/16
8:07 am-10:59 pm
2 stops11h 52m
Toronto Pearson Intl
Sat 9/19
1:10 pm-9:56 pm
2 stops11h 46m
$753
Santa RosaToronto
STS - YYZ
STSYYZ
Santa Rosa Sonoma County
Tue 6/23
1:09 pm-12:35 pm
2 stops20h 26m
Toronto Pearson Intl
Mon 6/29
11:39 am-12:05 pm
2 stops27h 26m
$781
Santa RosaToronto
STS - YYZ
STSYYZ
Santa Rosa Sonoma County
Wed 6/24
1:09 pm-12:35 pm
2 stops20h 26m
Toronto Pearson Intl
Mon 6/29
6:18 pm-12:05 pm
1 stop20h 47m
$805
Santa RosaToronto
STS - YYZ
STSYYZ
Santa Rosa Sonoma County
Wed 6/24
1:09 pm-5:44 pm
2 stops25h 35m
Toronto Pearson Intl
Sun 6/28
6:24 pm-12:05 pm
2 stops20h 41m
$811
Santa RosaToronto
STS - YYZ
STSYYZ
Santa Rosa Sonoma County
Sat 6/6
1:09 pm-2:33 pm
2 stops22h 24m
Toronto Pearson Intl
Fri 6/12
2:55 pm-12:05 pm
1 stop24h 10m
$832
Santa RosaToronto
STS - YYZ
STSYYZ
Santa Rosa Sonoma County
Thu 6/25
1:09 pm-5:21 pm
2 stops25h 12m
Toronto Pearson Intl
Tue 6/30
6:24 pm-12:05 pm
2 stops20h 41m
$832
Santa RosaToronto
STS - YYZ
STSYYZ
Santa Rosa Sonoma County
Mon 6/8
4:20 pm-11:29 pm
2 stops28h 09m
Toronto Pearson Intl
Sat 6/13
6:46 am-12:05 pm
1 stop8h 19m
$833
Santa RosaMontreal
STS - YUL
STSYUL
Santa Rosa Sonoma County
Sat 7/18
12:43 pm-2:41 pm
1 stop22h 58m
Montreal Pierre Elliott Trudeau Intl
Fri 7/24
3:48 pm-12:03 pm
1 stop23h 15m
$885
Showing 1-10 of 38 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
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Cheapflights Insights
Everything you need to know about your flight from Santa Rosa to Ontario
STS-CAON
STS-YYZ
STS-YUL
STS-YOW
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