$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 9/17. Fares are subject to change and may not be available on all flights or dates of travel.
YYZ — LAX
Aug 27 — Sep 31
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 July 28, 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 July 28, 2026.
This FlightHub deal was found by Cheapflights users on 7/27. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/78:00 am
YYZ
- LAS
2 stops12h 15m
WestJet
Thu 9/108:30 am
LAS
- YYZ
2 stops10h 05m
WestJet
Deal found 7/27![WestJet logo]()
$269
This FlightHub deal was found by Cheapflights users on 7/27. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 10/198:00 am
YYZ
- LAS
2 stops12h 15m
WestJet
Fri 10/2310:00 am
LAS
- YYZ
2 stops11h 10m
WestJet
Deal found 7/27![WestJet logo]()
$270
This Justfly.com deal was found by Cheapflights users on 7/27. 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 Justfly.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/258:35 pm
YYZ
- LAS
Nonstop4h 47m
Multiple Airlines
Fri 10/28:30 am
LAS
- YYZ
2 stops11h 55m
Multiple Airlines
Deal found 7/27![Multiple Airlines logo]()
$271
This TravelUp deal was found by Cheapflights users on 7/26. 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 TravelUp is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/87:15 pm
YYZ
- LAS
1 stop6h 45m
Multiple Airlines
Tue 9/156:31 am
LAS
- YYZ
1 stop8h 13m
Multiple Airlines
Deal found 7/26![Multiple Airlines logo]()
$272
This Cheapflightsfares deal was found by Cheapflights users on 7/26. 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/168:00 am
YYZ
- LAS
1 stop10h 30m
WestJet
Mon 10/196:10 pm
LAS
- YYZ
1 stop9h 45m
WestJet
Deal found 7/26![WestJet logo]()
$273
This Cheapflightsfares deal was found by Cheapflights users on 7/26. 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/108:35 pm
YYZ
- LAS
Nonstop4h 47m
Porter Airlines
Sun 9/1311:20 pm
LAS
- YYZ
Nonstop4h 19m
Porter Airlines
Deal found 7/26![Porter Airlines logo]()
$274
This Air Canada deal was found by Cheapflights users on 7/26. 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 Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/88:35 pm
YYZ
- LAS
Nonstop4h 47m
Air Canada
Sat 9/1211:25 pm
LAS
- YYZ
Nonstop4h 19m
Air Canada
Deal found 7/26![Air Canada logo]()
$275
This Trip.com deal was found by Cheapflights users on 7/26. 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.
Sat 9/58:35 pm
YYZ
- LAS
Nonstop4h 49m
Air Canada
Tue 9/811:25 pm
LAS
- YYZ
Nonstop4h 19m
Air Canada
Deal found 7/26![Air Canada logo]()
$276
This FlightHub deal was found by Cheapflights users on 7/26. 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.
Sun 11/87:00 am
YYZ
- LAS
Nonstop5h 07m
Air Transat
Thu 11/1211:35 pm
LAS
- YYZ
Nonstop4h 15m
Air Transat
Deal found 7/26![Air Transat logo]()
$277
This Air Canada deal was found by Cheapflights users on 7/26. 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 Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/88:35 pm
YYZ
- LAS
Nonstop4h 47m
Air Canada
Tue 9/2211:25 pm
LAS
- YYZ
1 stop8h 08m
Air Canada
Deal found 7/26![Air Canada logo]()
$278
This Kiwi.com deal was found by Cheapflights users on 7/26. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/108:00 am
YYZ
- LAS
2 stops12h 15m
WestJet
Mon 9/144:30 pm
LAS
- YYZ
1 stop10h 15m
WestJet
Deal found 7/26![WestJet logo]()
$279
This FlightHub deal was found by Cheapflights users on 7/26. 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.
Thu 10/153:50 pm
YYZ
- LAS
1 stop8h 50m
WestJet
Mon 10/196:10 pm
LAS
- YYZ
1 stop8h 35m
WestJet
Deal found 7/26![WestJet logo]()
$280
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 July 28, 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 July 28, 2026.
This United Airlines deal was found by Cheapflights users on 7/27. 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.
Fri 10/2310:15 am
YYZ
- LAS
1 stop14h 58m
United Airlines
Sun 11/111:45 pm
LAS
- YYZ
1 stop15h 04m
United Airlines
Deal found 7/27![United Airlines logo]()
$298
This United deal was found by Cheapflights users on 7/26. 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.
Fri 10/231:00 pm
YYZ
- LAS
1 stop10h 28m
Multiple Airlines
Tue 10/2711:50 pm
LAS
- YYZ
Nonstop4h 20m
Multiple Airlines
Deal found 7/26![Multiple Airlines logo]()
$298
This Delta deal was found by Cheapflights users on 7/24. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 8/211:38 pm
YYZ
- LAS
1 stop11h 39m
Delta
Tue 9/89:33 am
LAS
- YYZ
1 stop10h 40m
Delta
Deal found 7/24![Delta logo]()
$343
This Porter Airlines deal was found by Cheapflights users on 7/27. 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.
Wed 10/79:45 am
YYZ
- SFO
Nonstop5h 35m
Porter Airlines
Sun 10/111:20 pm
SFO
- YYZ
Nonstop5h 05m
Porter Airlines
Deal found 7/27![Porter Airlines logo]()
$418
This Air Transat deal was found by Cheapflights users on 7/27. 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 Air Transat is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 8/114:15 pm
YUL
- LAS
1 stop9h 07m
Air Transat
Thu 8/209:45 am
LAS
- YUL
1 stop7h 45m
Air Transat
Deal found 7/27![Air Transat logo]()
$457
This Air Canada deal was found by Cheapflights users on 7/28. 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 Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/165:40 pm
YUL
- SFO
Nonstop6h 07m
Air Canada
Thu 10/17:10 am
SFO
- YUL
1 stop9h 00m
Air Canada
Deal found 7/28![Air Canada logo]()
$501
This KAYAK deal was found by Cheapflights users on 7/26. 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 KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 8/236:15 am
YYZ
- SFO
2 stops12h 47m
American Airlines
Thu 8/275:33 am
SFO
- YYZ
2 stops14h 02m
American Airlines
Deal found 7/26![American Airlines logo]()
$511
This Alaska Airlines deal was found by Cheapflights users on 7/25. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/115:15 pm
YYZ
- SAN
2 stops23h 21m
Alaska Airlines
Sun 11/159:15 am
SAN
- YYZ
1 stop27h 50m
Alaska Airlines
Deal found 7/25![Alaska Airlines logo]()
$541
This United Airlines deal was found by Cheapflights users on 7/24. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 9/67:00 am
YYZ
- LAS
1 stop7h 24m
United Airlines
Sat 9/1211:57 pm
LAS
- YYZ
1 stop7h 07m
United Airlines
Deal found 7/24![United Airlines logo]()
$307
This United deal was found by Cheapflights users on 7/27. 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 is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/78:50 am
YYZ
- LAS
1 stop7h 17m
Multiple Airlines
Fri 9/1811:25 pm
LAS
- YYZ
Nonstop4h 19m
Multiple Airlines
Deal found 7/27![Multiple Airlines logo]()
$314
This United Airlines deal was found by Cheapflights users on 7/24. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/77:00 am
YYZ
- LAS
1 stop7h 23m
United Airlines
Sat 9/128:20 am
LAS
- YYZ
1 stop7h 42m
United Airlines
Deal found 7/24![United Airlines logo]()
$307
This Delta deal was found by Cheapflights users on 7/25. 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 10/211:34 pm
YYZ
- LAS
1 stop11h 32m
Delta
Sun 10/2511:35 pm
LAS
- YYZ
1 stop11h 01m
Delta
Deal found 7/25![Delta logo]()
$344
This United deal was found by Cheapflights users on 7/23. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/13:53 pm
YYZ
- LAS
1 stop8h 57m
Multiple Airlines
Fri 9/411:25 pm
LAS
- YYZ
Nonstop4h 16m
Multiple Airlines
Deal found 7/23![Multiple Airlines logo]()
$357
This Delta deal was found by Cheapflights users on 7/24. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 8/239:45 am
YYZ
- LAS
1 stop10h 35m
Delta
Fri 8/2810:45 pm
LAS
- YYZ
1 stop9h 34m
Delta
Deal found 7/24![Delta logo]()
$379
This Porter Airlines deal was found by Cheapflights users on 7/24. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Porter Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/179:45 am
YYZ
- SFO
Nonstop5h 35m
Porter Airlines
Tue 9/221:20 pm
SFO
- YYZ
Nonstop5h 05m
Porter Airlines
Deal found 7/24![Porter Airlines logo]()
$419
This United Airlines deal was found by Cheapflights users on 7/27. 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.
Fri 9/117:35 pm
YTZ
- LAS
2 stops16h 34m
United Airlines
Tue 9/157:15 am
LAS
- YTZ
1 stop6h 27m
United Airlines
Deal found 7/27![United Airlines logo]()
$372
This Delta deal was found by Cheapflights users on 7/23. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 8/229:45 am
YYZ
- LAS
1 stop10h 35m
Delta
Wed 8/2611:57 am
LAS
- YYZ
1 stop9h 02m
Delta
Deal found 7/23![Delta logo]()
$379
This Porter Airlines deal was found by Cheapflights users on 7/23. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Porter Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/311:05 am
YYZ
- LAX
Nonstop5h 15m
Porter Airlines
Sun 9/132:20 pm
LAX
- YYZ
Nonstop4h 40m
Porter Airlines
Deal found 7/23![Porter Airlines logo]()
$423
This United Airlines deal was found by Cheapflights users on 7/23. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/2212:15 pm
YTZ
- LAS
2 stops10h 49m
United Airlines
Thu 9/2411:50 pm
LAS
- YTZ
1 stop7h 17m
United Airlines
Deal found 7/23![United Airlines logo]()
$373
This United deal was found by Cheapflights users on 7/25. 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 is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 8/266:30 am
YYZ
- SFO
Nonstop5h 38m
Multiple Airlines
Wed 9/94:40 pm
SFO
- YYZ
Nonstop4h 56m
Multiple Airlines
Deal found 7/25![Multiple Airlines logo]()
$420
This Porter Airlines deal was found by Cheapflights users on 7/24. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Porter Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/265:55 pm
YUL
- SFO
2 stops21h 50m
Porter Airlines
Thu 12/31:45 pm
SFO
- YUL
1 stop7h 50m
Porter Airlines
Deal found 7/24![Porter Airlines logo]()
$427
This Delta deal was found by Cheapflights users on 7/24. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/246:10 am
YYZ
- LAX
1 stop11h 24m
Delta
Sat 8/2910:40 pm
LAX
- YYZ
1 stop7h 15m
Delta
Deal found 7/24![Delta logo]()
$409
This United Airlines deal was found by Cheapflights users on 7/24. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/1012:15 pm
YTZ
- LAS
1 stop8h 29m
United Airlines
Mon 9/1411:50 pm
LAS
- YTZ
1 stop13h 52m
United Airlines
Deal found 7/24![United Airlines logo]()
$373
This United deal was found by Cheapflights users on 7/25. 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 is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 8/275:16 pm
YYZ
- SFO
Nonstop5h 36m
Multiple Airlines
Fri 8/2812:50 pm
SFO
- YYZ
1 stop8h 16m
Multiple Airlines
Deal found 7/25![Multiple Airlines logo]()
$433
This Delta deal was found by Cheapflights users on 7/24. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/177:45 am
YYZ
- LAX
1 stop12h 35m
Delta
Tue 8/255:35 am
LAX
- YYZ
1 stop8h 05m
Delta
Deal found 7/24![Delta logo]()
$409
This United Airlines deal was found by Cheapflights users on 7/25. 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.
Thu 10/112:15 pm
YTZ
- LAS
2 stops10h 49m
United Airlines
Mon 10/511:50 pm
LAS
- YTZ
1 stop7h 17m
United Airlines
Deal found 7/25![United Airlines logo]()
$373
This oojo deal was found by Cheapflights users on 7/28. 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/216:45 am
YUL
- SFO
1 stop8h 35m
Porter Airlines
Thu 9/241:20 pm
SFO
- YUL
1 stop8h 17m
Porter Airlines
Deal found 7/28![Porter Airlines logo]()
$482
This Delta deal was found by Cheapflights users on 7/24. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 8/216:34 pm
YYZ
- LAX
1 stop9h 07m
Delta
Mon 8/2411:59 pm
LAX
- YYZ
1 stop9h 24m
Delta
Deal found 7/24![Delta logo]()
$409
This United Airlines deal was found by Cheapflights users on 7/23. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 9/63:45 pm
YTZ
- LAS
2 stops21h 37m
United Airlines
Sun 9/1311:50 pm
LAS
- YTZ
1 stop7h 17m
United Airlines
Deal found 7/23![United Airlines logo]()
$373
This United deal was found by Cheapflights users on 7/26. 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 10/16:35 pm
YUL
- LAS
1 stop8h 54m
Multiple Airlines
Wed 10/711:25 pm
LAS
- YUL
Nonstop4h 55m
Multiple Airlines
Deal found 7/26![Multiple Airlines logo]()
$457
Last-minute flights from Ontario to CaliforniaDiscover last-minute flight deals from Ontario to California. Data last updated July 28, 2026 and is based on user searches.
Discover last-minute flight deals from Ontario to California. Data last updated July 28, 2026 and is based on user searches.
This Kiwi.com deal was found by Cheapflights users on 7/27. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 8/181:40 pm
YTZ
- LAS
1 stop24h 14m
Multiple Airlines
Tue 8/2512:30 am
LAS
- YTZ
1 stop13h 50m
Multiple Airlines
Deal found 7/27![Multiple Airlines logo]()
$313
This Kiwi.com deal was found by Cheapflights users on 7/27. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 8/1811:10 pm
YYZ
- SFO
2 stops25h 45m
WestJet
Tue 8/251:00 pm
SFO
- YYZ
1 stop8h 10m
WestJet
Deal found 7/27![WestJet logo]()
$314
This Kiwi.com deal was found by Cheapflights users on 7/27. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 8/1810:25 pm
YYZ
- SFO
1 stop26h 30m
WestJet
Mon 8/246:00 am
SFO
- YYZ
1 stop9h 55m
WestJet
Deal found 7/27![WestJet logo]()
$316
This Justfly.com deal was found by Cheapflights users on 7/27. 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 Justfly.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 8/193:50 pm
YYZ
- SFO
1 stop9h 05m
Multiple Airlines
Tue 9/151:20 pm
SFO
- YYZ
Nonstop5h 05m
Multiple Airlines
Deal found 7/27![Multiple Airlines logo]()
$312
This Justfly.com deal was found by Cheapflights users on 7/27. 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 Justfly.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 8/2012:40 pm
YYZ
- SFO
2 stops12h 15m
WestJet
Tue 9/81:00 pm
SFO
- YYZ
2 stops13h 10m
WestJet
Deal found 7/27![WestJet logo]()
$313
This Cheapflightsfares deal was found by Cheapflights users on 7/26. 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 8/218:35 pm
YYZ
- LAS
Nonstop4h 47m
Porter Airlines
Tue 9/89:45 am
LAS
- YYZ
Nonstop4h 24m
Porter Airlines
Deal found 7/26![Porter Airlines logo]()
$300
This FlightHub deal was found by Cheapflights users on 7/28. 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.
Fri 8/2110:25 pm
YYZ
- SFO
1 stop26h 30m
WestJet
Mon 8/246:00 am
SFO
- YYZ
1 stop9h 55m
WestJet
Deal found 7/28![WestJet logo]()
$311
This oojo deal was found by Cheapflights users on 7/28. 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 8/258:35 pm
YYZ
- LAS
Nonstop4h 47m
Porter Airlines
Tue 9/811:20 pm
LAS
- YYZ
Nonstop4h 19m
Porter Airlines
Deal found 7/28![Porter Airlines logo]()
$310
This Kiwi.com deal was found by Cheapflights users on 7/27. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 8/251:40 pm
YTZ
- LAS
1 stop24h 14m
Multiple Airlines
Mon 8/3112:30 am
LAS
- YTZ
1 stop9h 25m
Multiple Airlines
Deal found 7/27![Multiple Airlines logo]()
$314
This oojo deal was found by Cheapflights users on 7/26. 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 8/257:00 am
YYZ
- LAS
Nonstop4h 47m
Porter Airlines
Sat 9/511:20 pm
LAS
- YYZ
Nonstop4h 19m
Porter Airlines
Deal found 7/26![Porter Airlines logo]()
$314
This FlightHub deal was found by Cheapflights users on 7/27. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 8/262:50 pm
YYZ
- SFO
1 stop10h 05m
Multiple Airlines
Thu 9/101:20 pm
SFO
- YYZ
Nonstop5h 05m
Multiple Airlines
Deal found 7/27![Multiple Airlines logo]()
$315
This Justfly.com deal was found by Cheapflights users on 7/25. 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 Justfly.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 8/308:35 pm
YYZ
- LAS
Nonstop4h 47m
Porter Airlines
Sat 9/511:20 pm
LAS
- YYZ
Nonstop4h 19m
Porter Airlines
Deal found 7/25![Porter Airlines logo]()
$317
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 July 28, 2026.
Search for one-way flight options from Ontario to California. Find affordable one-way fares based on user searches. Data last updated July 28, 2026.
This Air Canada deal was found by Cheapflights users on 7/25. 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 Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/178:35 pm
YYZ
- LAS
Nonstop4h 47m
Air Canada
Deal found 7/25![Air Canada logo]()
$164
This FlightHub deal was found by Cheapflights users on 7/23. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/228:00 am
YYZ
- LAS
2 stops12h 15m
WestJet
Deal found 7/23![WestJet logo]()
$165
This Air Canada deal was found by Cheapflights users on 7/27. 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 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 7/27![Air Canada logo]()
$166
This Air Canada deal was found by Cheapflights users on 7/26. 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 Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/298:35 pm
YYZ
- LAS
Nonstop4h 47m
Air Canada
Deal found 7/26![Air Canada logo]()
$166
This Air Canada deal was found by Cheapflights users on 7/23. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 9/125:30 pm
YYZ
- LAS
1 stop7h 53m
Air Canada
Deal found 7/23![Air Canada logo]()
$167
This Cheapflightsfares deal was found by Cheapflights users on 7/25. 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/1412:40 pm
YYZ
- LAS
1 stop8h 50m
WestJet
Deal found 7/25![WestJet logo]()
$168
This Kissandfly.com deal was found by Cheapflights users on 7/24. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kissandfly.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 8/193:50 pm
YYZ
- LAS
1 stop8h 50m
WestJet
Deal found 7/24![WestJet logo]()
$169
This Kiwi.com deal was found by Cheapflights users on 7/24. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 8/199:15 am
YTZ
- LAS
1 stop28h 39m
Multiple Airlines
Deal found 7/24![Multiple Airlines logo]()
$170
This Cheapflightsfares deal was found by Cheapflights users on 7/25. 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 9/279:00 am
YYZ
- LAS
1 stop9h 30m
WestJet
Deal found 7/25![WestJet logo]()
$170
This Kiwi.com deal was found by Cheapflights users on 7/23. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 8/149:15 am
YTZ
- LAS
1 stop29h 10m
Multiple Airlines
Deal found 7/23![Multiple Airlines logo]()
$171
This Air Canada deal was found by Cheapflights users on 7/27. 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 Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 9/55:40 pm
YYZ
- LAS
1 stop9h 56m
Air Canada
Deal found 7/27![Air Canada logo]()
$171
This Kiwi.com deal was found by Cheapflights users on 7/25. 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.
Sat 8/151:40 pm
YTZ
- LAS
1 stop25h 05m
Multiple Airlines
Deal found 7/25![Multiple Airlines logo]()
$172
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 July 28, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $269 (FlightHub) |
One-way from | $164 (Air Canada) |
Popular in | June |
Cheapest in | October |
Average price | $461 |
Good round-trip deal | $374 or less |
Good one-way deal | $285 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 July 28, 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
Fri 10/23
10:15 am-10:13 pm
1 stop14h 58m
Las Vegas Harry Reid Intl
Sun 11/1
11:45 pm-5:49 pm
1 stop15h 04m
$298
TorontoLas Vegas
YYZ - LAS
YYZLAS
Toronto Pearson Intl
Fri 10/23
1:00 pm-8:28 pm
1 stop10h 28m
Las Vegas Harry Reid Intl
Tue 10/27
11:50 pm-7:10 am
Nonstop4h 20m
$298
TorontoLas Vegas
YYZ - LAS
YYZLAS
Toronto Pearson Intl
Sun 9/6
7:00 am-11:24 am
1 stop7h 24m
Las Vegas Harry Reid Intl
Sat 9/12
11:57 pm-10:04 am
1 stop7h 07m
$307
TorontoLas Vegas
YYZ - LAS
YYZLAS
Toronto Pearson Intl
Mon 9/7
7:00 am-11:23 am
1 stop7h 23m
Las Vegas Harry Reid Intl
Sat 9/12
8:20 am-7:02 pm
1 stop7h 42m
$307
TorontoLas Vegas
YYZ - LAS
YYZLAS
Toronto Pearson Intl
Mon 9/7
8:50 am-1:07 pm
1 stop7h 17m
Las Vegas Harry Reid Intl
Fri 9/18
11:25 pm-6:44 am
Nonstop4h 19m
$314
TorontoLas Vegas
YYZ - LAS
YYZLAS
Toronto Pearson Intl
Fri 8/21
1:38 pm-10:17 pm
1 stop11h 39m
Las Vegas Harry Reid Intl
Tue 9/8
9:33 am-11:13 pm
1 stop10h 40m
$343
TorontoLas Vegas
YYZ - LAS
YYZLAS
Toronto Pearson Intl
Wed 10/21
1:34 pm-10:06 pm
1 stop11h 32m
Las Vegas Harry Reid Intl
Sun 10/25
11:35 pm-1:36 pm
1 stop11h 01m
$344
TorontoLas Vegas
YYZ - LAS
YYZLAS
Toronto Pearson Intl
Tue 9/1
3:53 pm-9:50 pm
1 stop8h 57m
Las Vegas Harry Reid Intl
Fri 9/4
11:25 pm-6:41 am
Nonstop4h 16m
$357
TorontoLas Vegas
YTZ - LAS
YTZLAS
Toronto Island
Fri 9/11
7:35 pm-9:09 am
2 stops16h 34m
Las Vegas Harry Reid Intl
Tue 9/15
7:15 am-4:42 pm
1 stop6h 27m
$372
TorontoLas Vegas
YTZ - LAS
YTZLAS
Toronto Island
Tue 9/22
12:15 pm-8:04 pm
2 stops10h 49m
Las Vegas Harry Reid Intl
Thu 9/24
11:50 pm-10:07 am
1 stop7h 17m
$373
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.
YTZ-LAS
YYZ-LAS
YUL-LAS
YYZ-LAX
YTZ-SFO
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
YTZ-LAS
YYZ-LAS
YUL-LAS
YYZ-LAX
What is the cheapest month to book a flight from Region of Ontario to California?
Currently, October is the cheapest month in which you can book a flight from Region of Ontario to California (average of $346). Flying from Region of Ontario to California in July is currently the most expensive (average of $485). 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 July 28, 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.
Weekly flight availability from Region of Ontario to California
Explore weekly flight availability from Ontario to California. Discover flights operating on different days of the week, giving you the flexibility to choose a travel day that best fits your plans. Compare info to find the most convenient option for your journey. Data last updated July 28, 2026.
The most flights from CAON to USCA are scheduled on a Saturday (22 on average). You will have fewer flight options on Thursday, which is when the least amount of flights are scheduled (17 on average).
How much does it cost to fly round-trip from Region of Ontario to California?
Airfare is typical for this route at the moment.
Region of Ontario to California flights typically cost between $324 and $508 in September.The cheapest round-trip price found within the last 5 days was $342 on WestJet (Sep 10-Sep 19).
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 July 25, 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. Wednesday 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 July 28, 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
Food
7.5
Overall
8.0
Comfort
8.0
Crew
8.6
Boarding
8.2
Reviews
1 / 20
6.0
GoodShannon,Jul 2026
YQT - YOW
Entertainment
6.9
Food
7.5
Overall
8.0
Comfort
8.0
Crew
8.6
Boarding
8.2
Reviews
1 / 20
6.0
GoodShannon,Jul 2026
YQT - YOW
Entertainment
6.9
Food
7.5
Overall
8.0
Comfort
8.0
Crew
8.6
Boarding
8.2
Reviews
1 / 20
6.0
GoodShannon,Jul 2026
YQT - YOW
Entertainment
6.9
Food
7.5
Overall
8.0
Comfort
8.0
Crew
8.6
Boarding
8.2
Reviews
1 / 20
6.0
GoodShannon,Jul 2026
YQT - YOW
Entertainment
6.9
Food
7.5
Overall
8.0
Comfort
8.0
Crew
8.6
Boarding
8.2
Reviews
1 / 20
6.0
GoodShannon,Jul 2026
YQT - YOW
Entertainment
6.9
Food
7.5
Overall
8.0
Comfort
8.0
Crew
8.6
Boarding
8.2
Reviews
1 / 20
6.0
GoodShannon,Jul 2026
YQT - YOW
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 July 28, 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 July 28, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$118 | Average$333 | FlexibilityNo cancel fee | On-time60% | |
| Cheapest$171 | Average$439 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$182 | Average$490 | FlexibilityNo cancel fee | On-time67% | |
| Cheapest$197 | Average$424 | FlexibilityNo cancel fee | On-time50% | |
| Cheapest$200 | Average$440 | FlexibilityNo cancel fee | On-time52% | |
| Cheapest$250 | Average$522 | FlexibilityNo cancel fee | On-time69% | |
| Cheapest$301 | Average$508 | FlexibilityNo cancel fee | On-time71% |