$164+ Cheap flights from Ontario to California
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 7/8. Fares are subject to change and may not be available on all flights or dates of travel.
YYZ — LAX
Jul 16 — Jul 231
Round-trip
1 adult, Economy
We work with more than 300 partners to bring you better travel deals
Find cheap flights from Ontario to California with Cheapflights
1. Tell us where you want to go
Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”2. Select your favorite providers
We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.3. Compare prices and book
Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.Cheap flight deals from Ontario to California
Cheapest
Best
Last-minute
One-way
Cheapest flights from Ontario to CaliforniaExplore the most affordable flight options available from Ontario to California. Find the lowest fares from popular airlines and budget airlines, with prices last updated on June 16, 2026.
Explore the most affordable flight options available from Ontario to California. Find the lowest fares from popular airlines and budget airlines, with prices last updated on June 16, 2026.
This FlightHub deal was found by Cheapflights users on 6/15. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/17:00 am
YYZ
- LAS
1 stop8h 55m
WestJet
Thu 9/171:45 pm
LAS
- YYZ
2 stops12h 25m
WestJet
Deal found 6/15![WestJet logo]()
$262
This oojo deal was found by Cheapflights users on 6/11. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/78:00 pm
YYZ
- LAS
2 stops19h 30m
WestJet
Sat 9/126:10 pm
LAS
- YYZ
1 stop8h 35m
WestJet
Deal found 6/11![WestJet logo]()
$263
This Justfly.com deal was found by Cheapflights users on 6/13. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Justfly.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/2212:40 pm
YYZ
- LAS
2 stops12h 00m
WestJet
Mon 10/269:15 pm
LAS
- YYZ
1 stop29h 55m
WestJet
Deal found 6/13![WestJet logo]()
$264
This Kiwi.com deal was found by Cheapflights users on 6/12. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 7/103:50 pm
YYZ
- LAS
1 stop8h 50m
WestJet
Fri 7/178:30 am
LAS
- YYZ
2 stops10h 05m
WestJet
Deal found 6/12![WestJet logo]()
$265
This Justfly.com deal was found by Cheapflights users on 6/13. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Justfly.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 7/248:35 pm
YYZ
- LAS
Nonstop4h 47m
Porter Airlines
Tue 7/289:45 am
LAS
- YYZ
Nonstop4h 24m
Porter Airlines
Deal found 6/13![Porter Airlines logo]()
$266
This FlightHub deal was found by Cheapflights users on 6/15. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 8/73:50 pm
YYZ
- LAS
1 stop8h 50m
WestJet
Wed 8/121:45 pm
LAS
- YYZ
1 stop8h 20m
WestJet
Deal found 6/15![WestJet logo]()
$267
This oojo deal was found by Cheapflights users on 6/11. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/59:40 am
YYZ
- LAS
2 stops10h 33m
WestJet
Sun 11/89:15 pm
LAS
- YYZ
2 stops19h 58m
WestJet
Deal found 6/11![WestJet logo]()
$268
This Cheapflightsfares deal was found by Cheapflights users on 6/13. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/310:30 pm
YYZ
- LAS
1 stop17h 00m
WestJet
Thu 8/66:10 pm
LAS
- YYZ
1 stop9h 45m
WestJet
Deal found 6/13![WestJet logo]()
$269
This FlightHub deal was found by Cheapflights users on 6/13. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 9/61:30 pm
YYZ
- LAS
1 stop11h 10m
WestJet
Wed 9/91:20 pm
LAS
- YYZ
2 stops12h 50m
WestJet
Deal found 6/13![WestJet logo]()
$270
This Kiwi.com deal was found by Cheapflights users on 6/11. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 7/107:00 am
YYZ
- LAS
Nonstop4h 47m
Porter Airlines
Thu 7/1611:20 pm
LAS
- YYZ
Nonstop4h 19m
Porter Airlines
Deal found 6/11![Porter Airlines logo]()
$271
This SmartFares deal was found by Cheapflights users on 6/12. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure SmartFares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 10/128:35 pm
YYZ
- LAS
Nonstop4h 47m
Air Transat
Thu 10/1511:20 pm
LAS
- YYZ
Nonstop4h 19m
Air Transat
Deal found 6/12![Air Transat logo]()
$272
This FlightHub deal was found by Cheapflights users on 6/11. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/1210:30 am
YYZ
- LAS
1 stop11h 45m
WestJet
Sun 11/159:15 pm
LAS
- YYZ
1 stop23h 25m
WestJet
Deal found 6/11![WestJet logo]()
$273
Best flights from Ontario to CaliforniaDiscover carefully curated flight deals from Ontario to California that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated June 16, 2026.
Discover carefully curated flight deals from Ontario to California that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated June 16, 2026.
This United deal was found by Cheapflights users on 6/11. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/118:50 am
YYZ
- LAS
1 stop15h 53m
Multiple Airlines
Sun 11/1511:50 pm
LAS
- YYZ
Nonstop4h 20m
Multiple Airlines
Deal found 6/11![Multiple Airlines logo]()
$292
This United Airlines deal was found by Cheapflights users on 6/11. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/14:18 pm
YYZ
- LAS
1 stop7h 38m
United Airlines
Sun 10/411:50 pm
LAS
- YYZ
1 stop7h 04m
United Airlines
Deal found 6/11![United Airlines logo]()
$295
This Delta deal was found by Cheapflights users on 6/11. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 7/46:15 am
YYZ
- LAS
1 stop11h 46m
Delta
Thu 7/97:05 am
LAS
- YYZ
1 stop11h 56m
Delta
Deal found 6/11![Delta logo]()
$299
This Porter Airlines deal was found by Cheapflights users on 6/11. Clicking the “Pick Dates” 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.
Sat 9/56:45 am
YUL
- SFO
1 stop8h 35m
Porter Airlines
Sat 9/191:20 pm
SFO
- YUL
1 stop8h 17m
Porter Airlines
Deal found 6/11![Porter Airlines logo]()
$438
This United deal was found by Cheapflights users on 6/13. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 7/18:45 am
YYZ
- LAS
1 stop12h 48m
Multiple Airlines
Tue 7/711:25 pm
LAS
- YYZ
Nonstop4h 16m
Multiple Airlines
Deal found 6/13![Multiple Airlines logo]()
$296
This United Airlines deal was found by Cheapflights users on 6/14. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/244:18 pm
YYZ
- LAS
1 stop7h 38m
United Airlines
Sun 9/2711:50 pm
LAS
- YYZ
1 stop7h 04m
United Airlines
Deal found 6/14![United Airlines logo]()
$298
This Delta deal was found by Cheapflights users on 6/14. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 8/1312:09 pm
YYZ
- LAS
1 stop11h 12m
Delta
Sat 8/155:50 am
LAS
- YYZ
1 stop6h 30m
Delta
Deal found 6/14![Delta logo]()
$309
This United Airlines deal was found by Cheapflights users on 6/15. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/244:18 pm
YYZ
- LAS
2 stops10h 39m
United Airlines
Sat 9/266:09 am
LAS
- YYZ
2 stops13h 14m
United Airlines
Deal found 6/15![United Airlines logo]()
$298
This United deal was found by Cheapflights users on 6/15. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/283:50 pm
YYZ
- LAS
1 stop10h 25m
Multiple Airlines
Sat 10/3111:50 pm
LAS
- YYZ
Nonstop4h 20m
Multiple Airlines
Deal found 6/15![Multiple Airlines logo]()
$304
This United deal was found by Cheapflights users on 6/11. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/125:16 pm
YYZ
- LAS
1 stop10h 50m
Multiple Airlines
Sun 11/1511:50 pm
LAS
- YYZ
Nonstop4h 20m
Multiple Airlines
Deal found 6/11![Multiple Airlines logo]()
$304
This United Airlines deal was found by Cheapflights users on 6/13. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 7/79:00 pm
YYZ
- LAS
1 stop15h 19m
United Airlines
Fri 7/104:15 pm
LAS
- YYZ
1 stop14h 39m
United Airlines
Deal found 6/13![United Airlines logo]()
$309
This United deal was found by Cheapflights users on 6/14. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 6/3010:15 am
YYZ
- LAS
1 stop10h 42m
Multiple Airlines
Tue 7/711:25 pm
LAS
- YYZ
Nonstop4h 16m
Multiple Airlines
Deal found 6/14![Multiple Airlines logo]()
$309
This Porter Airlines deal was found by Cheapflights users on 6/11. Clicking the “Pick Dates” 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 9/106:45 am
YUL
- SFO
1 stop8h 35m
Porter Airlines
Sat 9/191:20 pm
SFO
- YUL
1 stop8h 17m
Porter Airlines
Deal found 6/11![Porter Airlines logo]()
$438
This Delta deal was found by Cheapflights users on 6/14. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 8/2112:44 pm
YUL
- LAS
1 stop10h 02m
Delta
Sun 9/69:59 am
LAS
- YUL
1 stop10h 31m
Delta
Deal found 6/14![Delta logo]()
$402
This Porter Airlines deal was found by Cheapflights users on 6/11. Clicking the “Pick Dates” 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 9/106:45 am
YUL
- SFO
1 stop8h 35m
Porter Airlines
Tue 9/151:20 pm
SFO
- YUL
1 stop8h 17m
Porter Airlines
Deal found 6/11![Porter Airlines logo]()
$438
This United Airlines deal was found by Cheapflights users on 6/15. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 11/1512:15 pm
YTZ
- LAS
1 stop9h 02m
United Airlines
Sat 11/2111:30 pm
LAS
- YTZ
1 stop7h 36m
United Airlines
Deal found 6/15![United Airlines logo]()
$370
This Delta deal was found by Cheapflights users on 6/14. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 8/227:45 am
YYZ
- LAX
1 stop12h 35m
Delta
Fri 8/289:50 pm
LAX
- YYZ
1 stop11h 33m
Delta
Deal found 6/14![Delta logo]()
$409
This United deal was found by Cheapflights users on 6/11. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 7/226:30 am
YYZ
- SFO
Nonstop5h 39m
Multiple Airlines
Sun 7/264:40 pm
SFO
- YYZ
Nonstop4h 55m
Multiple Airlines
Deal found 6/11![Multiple Airlines logo]()
$351
This Delta deal was found by Cheapflights users on 6/14. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 8/189:45 am
YYZ
- LAX
1 stop10h 48m
Delta
Sat 8/229:30 pm
LAX
- YYZ
1 stop9h 55m
Delta
Deal found 6/14![Delta logo]()
$409
This United Airlines deal was found by Cheapflights users on 6/12. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 7/149:00 pm
YYZ
- SFO
1 stop14h 47m
United Airlines
Sat 7/183:10 pm
SFO
- YYZ
1 stop15h 44m
United Airlines
Deal found 6/12![United Airlines logo]()
$373
This Porter Airlines deal was found by Cheapflights users on 6/15. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Porter Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/76:45 am
YUL
- SFO
1 stop8h 35m
Porter Airlines
Thu 10/151:20 pm
SFO
- YUL
1 stop8h 17m
Porter Airlines
Deal found 6/15![Porter Airlines logo]()
$466
This United deal was found by Cheapflights users on 6/11. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 9/135:16 pm
YYZ
- SFO
1 stop8h 39m
Multiple Airlines
Sun 9/204:30 pm
SFO
- YYZ
Nonstop4h 56m
Multiple Airlines
Deal found 6/11![Multiple Airlines logo]()
$372
This Delta deal was found by Cheapflights users on 6/13. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 7/89:45 am
YYZ
- LAX
1 stop10h 48m
Delta
Tue 7/1410:20 pm
LAX
- YYZ
1 stop9h 59m
Delta
Deal found 6/13![Delta logo]()
$410
This United Airlines deal was found by Cheapflights users on 6/13. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 7/101:00 pm
YYZ
- SFO
1 stop14h 32m
United Airlines
Sun 7/126:15 am
SFO
- YYZ
1 stop12h 17m
United Airlines
Deal found 6/13![United Airlines logo]()
$373
This Porter Airlines deal was found by Cheapflights users on 6/11. Clicking the “Pick Dates” 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.
Mon 9/76:45 am
YUL
- SFO
1 stop8h 35m
Porter Airlines
Fri 9/181:20 pm
SFO
- YUL
1 stop8h 17m
Porter Airlines
Deal found 6/11![Porter Airlines logo]()
$467
This Delta deal was found by Cheapflights users on 6/11. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 8/127:00 am
YUL
- LAS
1 stop8h 10m
Delta
Wed 8/1911:57 am
LAS
- YUL
1 stop8h 55m
Delta
Deal found 6/11![Delta logo]()
$411
This United Airlines deal was found by Cheapflights users on 6/11. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 7/37:43 pm
YYZ
- SFO
1 stop8h 32m
United Airlines
Tue 7/710:47 pm
SFO
- YYZ
Nonstop5h 13m
United Airlines
Deal found 6/11![United Airlines logo]()
$374
This United deal was found by Cheapflights users on 6/13. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/46:35 pm
YUL
- LAS
1 stop8h 53m
Multiple Airlines
Wed 9/911:25 pm
LAS
- YUL
Nonstop4h 55m
Multiple Airlines
Deal found 6/13![Multiple Airlines logo]()
$387
This Porter Airlines deal was found by Cheapflights users on 6/14. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Porter Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 10/186:45 am
YUL
- LAX
1 stop9h 35m
Porter Airlines
Thu 10/291:35 pm
LAX
- YUL
1 stop8h 00m
Porter Airlines
Deal found 6/14![Porter Airlines logo]()
$472
This United Airlines deal was found by Cheapflights users on 6/12. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 6/278:45 am
YYZ
- SFO
1 stop17h 12m
United Airlines
Fri 7/39:00 pm
SFO
- YYZ
1 stop15h 14m
United Airlines
Deal found 6/12![United Airlines logo]()
$374
Last-minute flights from Ontario to CaliforniaDiscover last-minute flight deals from Ontario to California. Data last updated June 16, 2026 and is based on user searches.
Discover last-minute flight deals from Ontario to California. Data last updated June 16, 2026 and is based on user searches.
This oojo deal was found by Cheapflights users on 6/11. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 7/15:20 pm
YYZ
- LAS
2 stops31h 20m
WestJet
Sat 7/48:30 am
LAS
- YYZ
1 stop9h 45m
WestJet
Deal found 6/11![WestJet logo]()
$270
This oojo deal was found by Cheapflights users on 6/15. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 7/28:15 am
YYZ
- LAS
1 stop31h 15m
WestJet
Thu 7/98:30 am
LAS
- YYZ
2 stops12h 29m
WestJet
Deal found 6/15![WestJet logo]()
$268
This Ticket deal was found by Cheapflights users on 6/13. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Ticket is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 7/28:15 am
YYZ
- SFO
Nonstop5h 30m
Air Canada
Thu 7/94:40 pm
SFO
- YYZ
Nonstop4h 55m
Air Canada
Deal found 6/13![Air Canada logo]()
$338
This Kiwi.com deal was found by Cheapflights users on 6/12. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 7/810:50 am
YYZ
- LAS
1 stop9h 25m
WestJet
Wed 7/156:10 pm
LAS
- YYZ
1 stop9h 45m
WestJet
Deal found 6/12![WestJet logo]()
$273
This Mytrip deal was found by Cheapflights users on 6/13. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 7/107:00 am
YYZ
- LAS
Nonstop4h 47m
Porter Airlines
Thu 7/1611:20 pm
LAS
- YYZ
Nonstop4h 19m
Porter Airlines
Deal found 6/13![Porter Airlines logo]()
$262
This oojo deal was found by Cheapflights users on 6/15. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 7/1012:40 pm
YYZ
- LAS
2 stops12h 00m
WestJet
Fri 7/178:30 am
LAS
- YYZ
2 stops12h 29m
WestJet
Deal found 6/15![WestJet logo]()
$263
This oojo deal was found by Cheapflights users on 6/11. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 7/1210:20 pm
YYZ
- LAS
2 stops17h 35m
WestJet
Wed 7/151:20 pm
LAS
- YYZ
2 stops14h 35m
WestJet
Deal found 6/11![WestJet logo]()
$269
This oojo deal was found by Cheapflights users on 6/15. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 7/1210:20 pm
YYZ
- SFO
2 stops16h 40m
WestJet
Mon 7/136:05 pm
SFO
- YYZ
2 stops18h 15m
WestJet
Deal found 6/15![WestJet logo]()
$340
This oojo deal was found by Cheapflights users on 6/15. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 7/236:10 am
YYZ
- SFO
2 stops18h 45m
WestJet
Sun 7/266:05 pm
SFO
- YYZ
2 stops19h 10m
WestJet
Deal found 6/15![WestJet logo]()
$339
This Justfly.com deal was found by Cheapflights users on 6/13. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Justfly.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 7/248:35 pm
YYZ
- LAS
Nonstop4h 47m
Porter Airlines
Tue 7/289:45 am
LAS
- YYZ
Nonstop4h 24m
Porter Airlines
Deal found 6/13![Porter Airlines logo]()
$266
This FlightHub deal was found by Cheapflights users on 6/13. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 7/246:00 am
YYZ
- LAS
1 stop9h 55m
WestJet
Wed 7/294:35 pm
LAS
- YYZ
1 stop9h 35m
WestJet
Deal found 6/13![WestJet logo]()
$267
This oojo deal was found by Cheapflights users on 6/13. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 7/2412:00 pm
YYZ
- LAS
2 stops12h 40m
WestJet
Mon 7/276:10 pm
LAS
- YYZ
2 stops22h 45m
WestJet
Deal found 6/13![WestJet logo]()
$272
One-way flights from Ontario to CaliforniaSearch for one-way flight options from Ontario to California. Find affordable one-way fares based on user searches. Data last updated June 16, 2026.
Search for one-way flight options from Ontario to California. Find affordable one-way fares based on user searches. Data last updated June 16, 2026.
This Kiwi.com deal was found by Cheapflights users on 6/12. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 7/88:00 am
YYZ
- LAS
2 stops12h 15m
WestJet
Deal found 6/12![WestJet logo]()
$164
This Kiwi.com deal was found by Cheapflights users on 6/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 7/18:35 pm
YYZ
- LAS
Nonstop4h 47m
Porter Airlines
Deal found 6/16![Porter Airlines logo]()
$165
This Air Canada deal was found by Cheapflights users on 6/11. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 8/88:35 pm
YYZ
- LAS
Nonstop4h 49m
Air Canada
Deal found 6/11![Air Canada logo]()
$166
This Justfly.com deal was found by Cheapflights users on 6/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Justfly.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/148:00 am
YYZ
- LAS
2 stops12h 15m
WestJet
Deal found 6/16![WestJet logo]()
$167
This Air Canada deal was found by Cheapflights users on 6/11. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 9/55:30 pm
YTZ
- LAS
1 stop7h 54m
Air Canada
Deal found 6/11![Air Canada logo]()
$168
This Cheapflightsfares deal was found by Cheapflights users on 6/15. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 7/210:30 pm
YYZ
- LAS
1 stop17h 00m
WestJet
Deal found 6/15![WestJet logo]()
$168
This Kiwi.com deal was found by Cheapflights users on 6/14. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/2110:05 am
YTZ
- LAS
1 stop25h 53m
Multiple Airlines
Deal found 6/14![Multiple Airlines logo]()
$169
This Air Canada deal was found by Cheapflights users on 6/13. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 9/124:30 pm
YYZ
- LAS
1 stop8h 53m
Air Canada
Deal found 6/13![Air Canada logo]()
$169
This Super.com deal was found by Cheapflights users on 6/15. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Super.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 8/116:25 pm
YYZ
- LAS
1 stop21h 05m
WestJet
Deal found 6/15![WestJet logo]()
$170
This oojo deal was found by Cheapflights users on 6/15. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 10/2510:15 pm
YYZ
- LAS
1 stop25h 00m
WestJet
Deal found 6/15![WestJet logo]()
$171
This Booking.com deal was found by Cheapflights users on 6/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 7/218:35 pm
YYZ
- LAS
Nonstop4h 49m
Air Canada
Deal found 6/16![Air Canada logo]()
$172
This Cheapflightsfares deal was found by Cheapflights users on 6/15. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 8/410:50 am
YYZ
- LAS
1 stop9h 25m
WestJet
Deal found 6/15![WestJet logo]()
$175
Find flight deals from Ontario to California
Keep the following information in mind while searching for Ontario to California flight deals. Data was last updated June 16, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $262 (FlightHub) |
One-way from | $164 (Kiwi.com) |
Popular in | June |
Cheapest in | September |
Average price | $455 |
Good round-trip deal | $313 or less |
Good one-way deal | $235 or less |
Cheapflights Fare Finder
Customize your flight search to find flights from Ontario to California that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated June 16, 2026.
Use the filters below to find and compare flights from Ontario to California that are best for you.
Fly from
Fly to
Route
Depart
Return
Cheapest round-trip
TorontoLas Vegas
YYZ - LAS
YYZLAS
Toronto Pearson Intl
Wed 11/11
8:50 am-9:43 pm
1 stop15h 53m
Las Vegas Harry Reid Intl
Sun 11/15
11:50 pm-7:10 am
Nonstop4h 20m
$292
TorontoLas Vegas
YYZ - LAS
YYZLAS
Toronto Pearson Intl
Thu 10/1
4:18 pm-8:56 pm
1 stop7h 38m
Las Vegas Harry Reid Intl
Sun 10/4
11:50 pm-9:54 am
1 stop7h 04m
$295
TorontoLas Vegas
YYZ - LAS
YYZLAS
Toronto Pearson Intl
Wed 7/1
8:45 am-6:33 pm
1 stop12h 48m
Las Vegas Harry Reid Intl
Tue 7/7
11:25 pm-6:41 am
Nonstop4h 16m
$296
TorontoLas Vegas
YYZ - LAS
YYZLAS
Toronto Pearson Intl
Thu 9/24
4:18 pm-8:56 pm
1 stop7h 38m
Las Vegas Harry Reid Intl
Sun 9/27
11:50 pm-9:54 am
1 stop7h 04m
$298
TorontoLas Vegas
YYZ - LAS
YYZLAS
Toronto Pearson Intl
Thu 9/24
4:18 pm-11:57 pm
2 stops10h 39m
Las Vegas Harry Reid Intl
Sat 9/26
6:09 am-10:23 pm
2 stops13h 14m
$298
TorontoLas Vegas
YYZ - LAS
YYZLAS
Toronto Pearson Intl
Sat 7/4
6:15 am-3:01 pm
1 stop11h 46m
Las Vegas Harry Reid Intl
Thu 7/9
7:05 am-10:01 pm
1 stop11h 56m
$299
TorontoLas Vegas
YYZ - LAS
YYZLAS
Toronto Pearson Intl
Wed 10/28
3:50 pm-11:15 pm
1 stop10h 25m
Las Vegas Harry Reid Intl
Sat 10/31
11:50 pm-6:10 am
Nonstop4h 20m
$304
TorontoLas Vegas
YYZ - LAS
YYZLAS
Toronto Pearson Intl
Thu 11/12
5:16 pm-1:06 am
1 stop10h 50m
Las Vegas Harry Reid Intl
Sun 11/15
11:50 pm-7:10 am
Nonstop4h 20m
$304
TorontoLas Vegas
YYZ - LAS
YYZLAS
Toronto Pearson Intl
Thu 8/13
12:09 pm-8:21 pm
1 stop11h 12m
Las Vegas Harry Reid Intl
Sat 8/15
5:50 am-3:20 pm
1 stop6h 30m
$309
TorontoLas Vegas
YYZ - LAS
YYZLAS
Toronto Pearson Intl
Tue 7/7
9:00 pm-9:19 am
1 stop15h 19m
Las Vegas Harry Reid Intl
Fri 7/10
4:15 pm-9:54 am
1 stop14h 39m
$309
Showing 1-10 of 60 resultsSorted by cheapest first
Best time to book a flight from Ontario to California
Have a flexible travel schedule? Discover the best time to fly to California from Ontario with our price prediction graph.
YYZ-LAS
YYZ-LAX
YYZ-SAN
YUL-LAX
YUL-LAS
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.
Cheapflights Insights
Everything you need to know about your flight from Ontario to California
CAON-USCA
YYZ-LAS
YYZ-LAX
YYZ-SAN
YUL-LAX
What is the cheapest month to book a flight from Region of Ontario to California?
Currently, January is the cheapest month in which you can book a flight from Region of Ontario to California (average of $339). Flying from Region of Ontario to California in June is currently the most expensive (average of $455). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.
What is the cheapest time of day to fly from ON to CA?
Find hourly flight availability from Ontario to California. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated June 16, 2026.
When flying from Region of Ontario to California, the time of day you fly usually plays a role in the price. Save by searching for a flight in the morning, which can drop the price by up to 40% versus a flight in the afternoon.
How much does it cost to fly round-trip from Region of Ontario to California?
How far ahead should I book a flight from Region of Ontario to California?
Booking 64 days in advance of your planned departure date is, on average, the best time to get cheap flights from Region of Ontario to California. The general trend is that the closer you book to the departure date, the more expensive your flight will be.
What is the cheapest day to fly from Region of Ontario to California?
Use this chart to determine the cheapest time to fly round-trip from Ontario to California. Price data was last updated on June 13, 2026.
Travelers seeking maximum savings on their Region of Ontario to California flight should consider departing on Tuesday evenings when fares are most often at their lowest. Monday at noon flights should be avoided if possible as fares are typically the most expensive at this time.
Reviews of airlines servicing California
Get insights into the airlines that provide service to California. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to California. Reviews last updated June 16, 2026.
Read through reviews of airlines operating flights from Ontario to California, such as Porter Airlines,Delta, andUnited Airlines. Users can see the overall rating for each airline as well as how each is rated in terms of entertainment options, comfort, food, crew/service, and boarding process.
Food
7.6
Overall
8.0
Comfort
8.0
Boarding
8.2
Crew
8.6
Entertainment
6.9
Reviews
1 / 20
6.0
GoodJustin,May 2026
YYZ - MCO
Food
7.6
Overall
8.0
Comfort
8.0
Boarding
8.2
Crew
8.6
Entertainment
6.9
Reviews
1 / 20
6.0
GoodJustin,May 2026
YYZ - MCO
Food
7.6
Overall
8.0
Comfort
8.0
Boarding
8.2
Crew
8.6
Entertainment
6.9
Reviews
1 / 20
6.0
GoodJustin,May 2026
YYZ - MCO
Food
7.6
Overall
8.0
Comfort
8.0
Boarding
8.2
Crew
8.6
Entertainment
6.9
Reviews
1 / 20
6.0
GoodJustin,May 2026
YYZ - MCO
Food
7.6
Overall
8.0
Comfort
8.0
Boarding
8.2
Crew
8.6
Entertainment
6.9
Reviews
1 / 20
6.0
GoodJustin,May 2026
YYZ - MCO
Food
7.6
Overall
8.0
Comfort
8.0
Boarding
8.2
Crew
8.6
Entertainment
6.9
Reviews
1 / 20
6.0
GoodJustin,May 2026
YYZ - MCO
Related info for your journey
Find useful and relevant information for your journey from Ontario to California. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.
Browse thousands of different options on Cheapflights for your next trip
Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.
Alternative routes
Complete your trip
Flights by cabin class
Other flight options
Popular flights
Return Flight Options
Top destinations
Alternative routes for Ontario to California
See prices for flight routes from nearby airports that may be better suited for you.
Complete your trip
Complete your trip to California by adding a car rental and/or hotel reservation to your travel itinerary.
Search flights from Ontario to California by cabin class
Find flights from Ontario to California, based on your preferred cabin class, be it economy, premium economy, business, or first class.
Ontario and California flights
Browse other Ontario and California flight options. Last updated on June 16, 2026.
Popular flight searches
Check out other popular destinations found by fellow travelers in 2026
Find a return flight route from California
Find the right flight back to Ontario after your stay in California
Ontario to California flights
Consider these flights traveling from Ontario to California.
Top 7 airlines flying from Ontario to California
Discover the top 7 airlines that operate flights from Ontario to California. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated June 16, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$102 | Average$508 | FlexibilityNo cancel fee | On-time67% | |
| Cheapest$118 | Average$309 | FlexibilityNo cancel fee | On-time60% | |
| Cheapest$166 | Average$419 | FlexibilityNo cancel fee | On-time52% | |
| Cheapest$171 | Average$434 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$171 | Average$516 | FlexibilityNo cancel fee | On-time69% | |
| Cheapest$195 | Average$419 | FlexibilityNo cancel fee | On-time50% | |
| Cheapest$297 | Average$480 | FlexibilityNo cancel fee | On-time71% |