$160+ Cheap flights from Ontario to California
This is the cheapest round-trip flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 12/8. Fares are subject to change and may not be available on all flights or dates of travel.
YYZ — LAX
Nov 29 — Dec 61
Round-trip
1 adult, Economy
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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
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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 October 30, 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 October 30, 2026.
This Kiwi.com deal was found by Cheapflights users on 10/28. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/237:30 am -
1 stop11h 20m
Fri 11/274:40 pm -
1 stop9h 20m
Deal found 10/28![WestJet logo]()
$278
This Kiwi.com deal was found by Cheapflights users on 10/28. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 11/227:00 am -
2 stops11h 50m
Fri 11/274:40 pm -
1 stop9h 20m
Deal found 10/28![WestJet logo]()
$281
This Kiwi.com deal was found by Cheapflights users on 10/28. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/197:30 am -
1 stop11h 20m
Thu 11/264:40 pm -
1 stop9h 20m
Deal found 10/28![WestJet logo]()
$285
This Cheapflightsfares deal was found by Cheapflights users on 10/28. 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/199:50 am -
Nonstop5h 54m
Sat 11/281:45 pm -
Nonstop4h 58m
Deal found 10/28![Porter Airlines logo]()
$286
This FlightHub deal was found by Cheapflights users on 10/28. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/199:35 am -
1 stop9h 15m
Fri 12/44:40 pm -
1 stop9h 20m
Deal found 10/28![WestJet logo]()
$287
This Porter Airlines deal was found by Cheapflights users on 10/26. 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 Porter Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/239:50 am -
Nonstop5h 54m
Fri 11/271:45 pm -
Nonstop4h 58m
Deal found 10/26![Porter Airlines logo]()
$288
This Delta deal was found by Cheapflights users on 10/26. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/156:00 am -
1 stop7h 58m
Sun 1/106:00 am -
1 stop7h 19m
Deal found 10/26![Delta logo]()
$289
This FlightHub deal was found by Cheapflights users on 10/26. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 11/179:50 am -
Nonstop5h 54m
Fri 11/274:40 pm -
1 stop9h 20m
Deal found 10/26![Multiple Airlines logo]()
$290
This Justfly.com deal was found by Cheapflights users on 10/26. 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 Justfly.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 11/209:50 am -
Nonstop5h 54m
Fri 11/274:40 pm -
1 stop9h 20m
Deal found 10/26![Multiple Airlines logo]()
$291
This Cheapflightsfares deal was found by Cheapflights users on 10/29. 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/39:35 am -
1 stop9h 15m
Sun 12/64:40 pm -
1 stop17h 25m
Deal found 10/29![WestJet logo]()
$292
This Cheapflightsfares deal was found by Cheapflights users on 10/27. 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 12/47:30 am -
1 stop11h 20m
Fri 12/114:40 pm -
1 stop15h 15m
Deal found 10/27![WestJet logo]()
$293
This Kissandfly.com deal was found by Cheapflights users on 10/28. 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 Kissandfly.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/199:50 am -
Nonstop5h 54m
Wed 11/251:45 pm -
Nonstop4h 58m
Deal found 10/28![Porter Airlines logo]()
$294
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 October 30, 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 October 30, 2026.
This Delta deal was found by Cheapflights users on 10/28. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 11/146:30 am -
2 stops12h 26m
Mon 11/236:30 am -
1 stop12h 27m
Deal found 10/28![Delta logo]()
$358
This United Airlines deal was found by Cheapflights users on 10/27. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/1810:53 am -
2 stops13h 15m
Thu 11/268:45 am -
2 stops12h 07m
Deal found 10/27![United Airlines logo]()
$358
This United deal was found by Cheapflights users on 10/26. 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 United is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/127:44 pm -
1 stop8h 15m
Fri 11/137:40 am -
Nonstop4h 46m
Deal found 10/26![Multiple Airlines logo]()
$362
This Alaska Airlines deal was found by Cheapflights users on 10/27. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 11/215:15 pm -
2 stops23h 45m
Fri 11/274:43 pm -
2 stops20h 22m
Deal found 10/27![Alaska Airlines logo]()
$365
This Air Transat deal was found by Cheapflights users on 10/28. 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 Air Transat is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 3/227:00 am -
1 stop8h 50m
Tue 4/131:45 pm -
1 stop7h 52m
Deal found 10/28![Air Transat logo]()
$431
This Porter Airlines deal was found by Cheapflights users on 10/27. 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 Porter Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 11/247:00 am -
1 stop8h 44m
Tue 12/81:45 pm -
1 stop7h 56m
Deal found 10/27![Porter Airlines logo]()
$438
This WestJet deal was found by Cheapflights users on 10/29. 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 WestJet is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/94:15 pm -
1 stop26h 35m
Fri 12/114:40 pm -
1 stop28h 00m
Deal found 10/29![WestJet logo]()
$516
This Delta deal was found by Cheapflights users on 10/27. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 11/2010:14 am -
2 stops14h 58m
Fri 11/272:57 pm -
2 stops17h 22m
Deal found 10/27![Delta logo]()
$358
This United Airlines deal was found by Cheapflights users on 10/26. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/93:45 pm -
1 stop9h 10m
Mon 11/167:00 am -
1 stop6h 47m
Deal found 10/26![United Airlines logo]()
$376
This United deal was found by Cheapflights users on 10/28. 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 United is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/116:10 am -
1 stop13h 20m
Wed 11/1810:55 pm -
Nonstop4h 46m
Deal found 10/28![Multiple Airlines logo]()
$376
This Alaska Airlines deal was found by Cheapflights users on 10/29. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 11/135:15 pm -
2 stops18h 38m
Mon 11/233:23 pm -
1 stop21h 42m
Deal found 10/29![Alaska Airlines logo]()
$387
This Delta deal was found by Cheapflights users on 10/25. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/2512:20 pm -
1 stop12h 52m
Mon 11/306:30 am -
1 stop12h 27m
Deal found 10/25![Delta logo]()
$358
This United Airlines deal was found by Cheapflights users on 10/26. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 11/156:45 am -
1 stop7h 44m
Thu 11/261:15 pm -
1 stop7h 37m
Deal found 10/26![United Airlines logo]()
$376
This Kiwi.com deal was found by Cheapflights users on 10/25. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 11/208:30 pm -
1 stop19h 54m
Mon 11/303:37 pm -
2 stops29h 18m
Deal found 10/25![Multiple Airlines logo]()
$393
This Delta deal was found by Cheapflights users on 10/28. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 11/137:35 am -
2 stops11h 18m
Mon 11/234:54 pm -
2 stops15h 15m
Deal found 10/28![Delta logo]()
$358
This United Airlines deal was found by Cheapflights users on 10/28. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/1210:53 am -
1 stop10h 34m
Sat 11/1410:15 am -
1 stop8h 09m
Deal found 10/28![United Airlines logo]()
$376
This Delta deal was found by Cheapflights users on 10/28. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 11/1512:15 pm -
2 stops14h 39m
Mon 11/234:19 pm -
2 stops16h 00m
Deal found 10/28![Delta logo]()
$358
This oojo deal was found by Cheapflights users on 10/26. 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 3/97:00 am -
1 stop8h 41m
Mon 3/151:35 pm -
1 stop8h 06m
Deal found 10/26![Porter Airlines logo]()
$479
This United Airlines deal was found by Cheapflights users on 10/26. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 12/208:35 am -
1 stop7h 39m
Sun 12/275:00 am -
1 stop7h 02m
Deal found 10/26![United Airlines logo]()
$376
This Air Transat deal was found by Cheapflights users on 10/28. 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 Air Transat is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 3/227:00 am -
1 stop8h 50m
Sun 4/111:45 pm -
1 stop7h 52m
Deal found 10/28![Air Transat logo]()
$508
This Delta deal was found by Cheapflights users on 10/27. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 12/42:25 pm -
2 stops12h 38m
Sun 12/136:08 pm -
2 stops14h 02m
Deal found 10/27![Delta logo]()
$358
This Alaska Airlines deal was found by Cheapflights users on 10/28. 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.
Wed 2/175:15 pm -
2 stops27h 09m
Fri 2/267:00 am -
2 stops30h 05m
Deal found 10/28![Alaska Airlines logo]()
$479
This Mytrip deal was found by Cheapflights users on 10/25. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 11/107:00 am -
1 stop8h 44m
Fri 11/131:45 pm -
1 stop7h 52m
Deal found 10/25![Porter Airlines logo]()
$506
This Delta deal was found by Cheapflights users on 10/27. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 12/57:35 am -
2 stops12h 48m
Sat 12/121:05 pm -
1 stop7h 53m
Deal found 10/27![Delta logo]()
$358
This Kiwi.com deal was found by Cheapflights users on 10/25. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/188:40 am -
2 stops24h 07m
Thu 11/265:40 pm -
1 stop23h 15m
Deal found 10/25![Multiple Airlines logo]()
$478
This United Airlines deal was found by Cheapflights users on 10/25. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 12/146:30 am -
1 stop10h 26m
Mon 12/144:30 pm -
1 stop13h 44m
Deal found 10/25![United Airlines logo]()
$398
This Alaska Airlines deal was found by Cheapflights users on 10/29. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 11/155:15 pm -
1 stop20h 03m
Sat 11/213:57 pm -
2 stops21h 08m
Deal found 10/29![Alaska Airlines logo]()
$493
This Porter Airlines deal was found by Cheapflights users on 10/26. 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 Porter Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 3/257:00 am -
1 stop8h 50m
Wed 3/311:45 pm -
1 stop7h 56m
Deal found 10/26![Porter Airlines logo]()
$526
This Delta deal was found by Cheapflights users on 10/27. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/1712:15 pm -
1 stop11h 04m
Tue 1/56:00 am -
1 stop10h 14m
Deal found 10/27![Delta logo]()
$360
This United Airlines deal was found by Cheapflights users on 10/26. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/193:35 pm -
2 stops10h 31m
Sun 11/227:51 pm -
2 stops10h 56m
Deal found 10/26![United Airlines logo]()
$403
Last-minute flights from Ontario to CaliforniaDiscover last-minute flight deals from Ontario to California. Data last updated October 30, 2026 and is based on user searches.
Discover last-minute flight deals from Ontario to California. Data last updated October 30, 2026 and is based on user searches.
This Super.com deal was found by Cheapflights users on 10/28. 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 Super.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 11/139:50 am -
Nonstop5h 54m
Sat 11/281:45 pm -
Nonstop4h 58m
Deal found 10/28![Porter Airlines logo]()
$293
This FlightHub deal was found by Cheapflights users on 10/26. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 11/179:50 am -
Nonstop5h 54m
Fri 11/274:40 pm -
1 stop9h 20m
Deal found 10/26![Multiple Airlines logo]()
$290
This Kiwi.com deal was found by Cheapflights users on 10/28. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/197:30 am -
1 stop11h 20m
Thu 11/264:40 pm -
1 stop9h 20m
Deal found 10/28![WestJet logo]()
$285
This Cheapflightsfares deal was found by Cheapflights users on 10/28. 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/199:50 am -
Nonstop5h 54m
Sat 11/281:45 pm -
Nonstop4h 58m
Deal found 10/28![Porter Airlines logo]()
$286
This FlightHub deal was found by Cheapflights users on 10/28. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/199:35 am -
1 stop9h 15m
Sun 12/64:40 pm -
1 stop9h 20m
Deal found 10/28![WestJet logo]()
$287
This Super.com deal was found by Cheapflights users on 10/28. 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 Super.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/199:35 am -
1 stop9h 15m
Thu 12/34:40 pm -
1 stop17h 25m
Deal found 10/28![WestJet logo]()
$292
This Kissandfly.com deal was found by Cheapflights users on 10/28. 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 Kissandfly.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/199:50 am -
Nonstop5h 54m
Wed 11/251:45 pm -
Nonstop4h 58m
Deal found 10/28![Porter Airlines logo]()
$294
This Justfly.com deal was found by Cheapflights users on 10/26. 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 Justfly.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 11/209:50 am -
Nonstop5h 54m
Fri 11/274:40 pm -
1 stop9h 20m
Deal found 10/26![Multiple Airlines logo]()
$291
This Kiwi.com deal was found by Cheapflights users on 10/28. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 11/227:00 am -
2 stops11h 50m
Fri 11/274:40 pm -
1 stop9h 20m
Deal found 10/28![WestJet logo]()
$281
This Kiwi.com deal was found by Cheapflights users on 10/28. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/237:30 am -
1 stop11h 20m
Fri 11/274:40 pm -
1 stop9h 20m
Deal found 10/28![WestJet logo]()
$278
This Porter Airlines deal was found by Cheapflights users on 10/26. 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 Porter Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/239:50 am -
Nonstop5h 54m
Fri 11/271:45 pm -
Nonstop4h 58m
Deal found 10/26![Porter Airlines logo]()
$288
This American Airlines deal was found by Cheapflights users on 10/26. 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 11/245:12 pm -
1 stop10h 35m
Tue 12/15:23 am -
1 stop7h 49m
Deal found 10/26![American Airlines logo]()
$289
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 October 30, 2026.
Search for one-way flight options from Ontario to California. Find affordable one-way fares based on user searches. Data last updated October 30, 2026.
This Kiwi.com deal was found by Cheapflights users on 10/25. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/89:50 am -
1 stop11h 26m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/25![Multiple Airlines logo]()
$160
This Kiwi.com deal was found by Cheapflights users on 10/25. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/99:50 am -
1 stop11h 26m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/25![Multiple Airlines logo]()
$163
This Trip.com deal was found by Cheapflights users on 10/26. 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 Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/39:50 am -
1 stop11h 20m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/26![Multiple Airlines logo]()
$177
This Kiwi.com deal was found by Cheapflights users on 10/25. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 12/69:10 am -
3 stops32h 53m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/25![Multiple Airlines logo]()
$179
This Kiwi.com deal was found by Cheapflights users on 10/27. 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.
Fri 12/1111:30 am -
1 stop23h 32m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/27![Multiple Airlines logo]()
$179
This Kiwi.com deal was found by Cheapflights users on 10/25. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 12/148:30 pm -
1 stop14h 32m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/25![Multiple Airlines logo]()
$181
This Mytrip deal was found by Cheapflights users on 10/29. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 12/46:10 am -
2 stops14h 35m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/29![WestJet logo]()
$184
This Kiwi.com deal was found by Cheapflights users on 10/25. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 11/229:10 am -
3 stops25h 45m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/25![Multiple Airlines logo]()
$184
This Trip.com deal was found by Cheapflights users on 10/25. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 12/145:40 pm -
2 stops24h 45m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/25![Multiple Airlines logo]()
$185
This SmartFares deal was found by Cheapflights users on 10/29. 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 SmartFares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/189:50 am -
Nonstop5h 54m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/29![Air Transat logo]()
$186
This Kiwi.com deal was found by Cheapflights users on 10/25. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/109:50 am -
1 stop11h 26m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/25![Multiple Airlines logo]()
$186
This SmartFares deal was found by Cheapflights users on 10/28. 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 SmartFares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 11/229:50 am -
Nonstop5h 54m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/28![Air Transat logo]()
$187
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 October 30, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $278 (Kiwi.com) |
One-way from | $160 (Kiwi.com) |
Popular in | August |
Cheapest in | January |
Average price | $427 |
Good round-trip deal | $393 or less |
Good one-way deal | $256 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 7,457,451 searches. Data last updated October 30, 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
TorontoSan Jose
YYZ Toronto Pearson Intl - SJC San Jose
YYZSJC
Toronto Pearson Intl
Sun 12/6
7:30 am-3:03 pm
2 stops34h 33m
San Jose
Wed 12/31
12:00 am-3:00 am
Nonstop0h 00m
$182
OttawaLos Angeles
YOW Ottawa - LAX Los Angeles
YOWLAX
Ottawa
Fri 12/4
6:10 am-5:45 pm
2 stops14h 35m
Los Angeles
Wed 12/31
12:00 am-3:00 am
Nonstop0h 00m
$184
OttawaLos Angeles
YOW Ottawa - LAX Los Angeles
YOWLAX
Ottawa
Mon 12/14
5:40 pm-3:25 pm
2 stops24h 45m
Los Angeles
Wed 12/31
12:00 am-3:00 am
Nonstop0h 00m
$185
OttawaLos Angeles
YOW Ottawa - LAX Los Angeles
YOWLAX
Ottawa
Wed 12/16
5:30 am-4:10 pm
2 stops13h 40m
Los Angeles
Wed 12/31
12:00 am-3:00 am
Nonstop0h 00m
$199
TorontoSan Francisco
YYZ Toronto Pearson Intl - SFO San Francisco
YYZSFO
Toronto Pearson Intl
Mon 11/16
5:15 pm-10:45 pm
1 stop8h 30m
San Francisco
Wed 12/31
12:00 am-3:00 am
Nonstop0h 00m
$204
TorontoSan Francisco
YYZ Toronto Pearson Intl - SFO San Francisco
YYZSFO
Toronto Pearson Intl
Sun 11/22
5:15 pm-11:22 pm
1 stop9h 07m
San Francisco
Wed 12/31
12:00 am-3:00 am
Nonstop0h 00m
$204
OttawaLos Angeles
YOW Ottawa - LAX Los Angeles
YOWLAX
Ottawa
Tue 12/1
7:00 am-12:31 pm
1 stop8h 31m
Los Angeles
Wed 12/31
12:00 am-3:00 am
Nonstop0h 00m
$205
OttawaSan Francisco
YOW Ottawa - SFO San Francisco
YOWSFO
Ottawa
Sun 1/24
5:30 am-3:50 pm
2 stops13h 20m
San Francisco
Wed 12/31
12:00 am-3:00 am
Nonstop0h 00m
$206
OttawaLos Angeles
YOW Ottawa - LAX Los Angeles
YOWLAX
Ottawa
Wed 12/16
7:00 am-2:34 pm
1 stop10h 34m
Los Angeles
Wed 12/31
12:00 am-3:00 am
Nonstop0h 00m
$207
OttawaLos Angeles
YOW Ottawa - LAX Los Angeles
YOWLAX
Ottawa
Thu 12/10
10:05 am-4:39 pm
1 stop9h 34m
Los Angeles
Wed 12/31
12:00 am-3:00 am
Nonstop0h 00m
$207
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-SJC
YYZ-LAX
YYZ-SFO
YOW-SFO
YYZ-FAT
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-SJC
YYZ-LAX
YYZ-SFO
YOW-SFO
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 $367). Flying from Region of Ontario to California in August is currently the most expensive (average of $498). 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 October 30, 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 evening, which can drop the price by up to 46% versus a flight in the afternoon.
How much does it cost to fly round-trip from Region of Ontario to California?
Airfare is below average for this route at the moment.
Region of Ontario to California flights typically cost between $331 and $474 in November.The cheapest round-trip price found within the last 5 days was $310 on Porter Airlines (Nov 27-Dec 2).
How far ahead should I book a flight from Region of Ontario to California?
Booking 81 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 October 24, 2026.
Travelers seeking maximum savings on their Region of Ontario to California flight should consider departing on Wednesday mornings when fares are most often at their lowest. Tuesday evenings 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 October 30, 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.
Entertainment
6.9
Comfort
8.0
Food
7.6
Crew
8.6
Boarding
8.2
Overall
8.0
Reviews
1 / 20
8.0
ExcellentD,Sep 2026
YHM - YVR
Entertainment
6.9
Comfort
8.0
Food
7.6
Crew
8.6
Boarding
8.2
Overall
8.0
Reviews
1 / 20
8.0
ExcellentD,Sep 2026
YHM - YVR
Entertainment
6.9
Comfort
8.0
Food
7.6
Crew
8.6
Boarding
8.2
Overall
8.0
Reviews
1 / 20
8.0
ExcellentD,Sep 2026
YHM - YVR
Entertainment
6.9
Comfort
8.0
Food
7.6
Crew
8.6
Boarding
8.2
Overall
8.0
Reviews
1 / 20
8.0
ExcellentD,Sep 2026
YHM - YVR
Entertainment
6.9
Comfort
8.0
Food
7.6
Crew
8.6
Boarding
8.2
Overall
8.0
Reviews
1 / 20
8.0
ExcellentD,Sep 2026
YHM - YVR
Entertainment
6.9
Comfort
8.0
Food
7.6
Crew
8.6
Boarding
8.2
Overall
8.0
Reviews
1 / 20
8.0
ExcellentD,Sep 2026
YHM - YVR
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.
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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 October 30, 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 7,457,451 searches. Data last updated October 30, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$147 | Average$509 | FlexibilityNo cancel fee | On-time67% | |
| Cheapest$181 | Average$440 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$184 | Average$410 | FlexibilityNo cancel fee | On-time60% | |
| Cheapest$190 | Average$421 | FlexibilityNo cancel fee | On-time52% | |
| Cheapest$197 | Average$455 | FlexibilityNo cancel fee | On-time50% | |
| Cheapest$216 | Average$572 | FlexibilityNo cancel fee | On-time69% | |
| Cheapest$307 | Average$507 | FlexibilityNo cancel fee | On-time71% |