$113+ 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 4/22. Fares are subject to change and may not be available on all flights or dates of travel.
YYZ — LAX
Apr 16 — Apr 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 March 17, 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 March 17, 2026.
This Trip.com deal was found by Cheapflights users on 3/13. 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 Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 4/108:00 pm
YYZ
- LAS
Nonstop5h 12m
WestJet
Mon 4/1311:25 pm
LAS
- YYZ
Nonstop4h 18m
WestJet
Deal found 3/13![WestJet logo]()
$169
This Kiwi.com deal was found by Cheapflights users on 3/17. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 6/119:30 am
YYZ
- LAS
1 stop10h 05m
WestJet
Sun 6/141:20 pm
LAS
- YYZ
1 stop8h 45m
WestJet
Deal found 3/17![WestJet logo]()
$177
This Kiwi.com deal was found by Cheapflights users on 3/16. 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.
Mon 4/207:45 am
YYZ
- LAS
1 stop9h 13m
WestJet
Thu 4/238:05 am
LAS
- YYZ
1 stop10h 06m
WestJet
Deal found 3/16![WestJet logo]()
$178
This Kiwi.com deal was found by Cheapflights users on 3/17. Clicking the “Pick Dates” 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 5/91:30 pm
YYZ
- LAS
1 stop11h 10m
WestJet
Tue 5/1212:35 pm
LAS
- YYZ
Nonstop4h 25m
WestJet
Deal found 3/17![WestJet logo]()
$179
This Kiwi.com deal was found by Cheapflights users on 3/13. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 4/211:30 pm
YYZ
- LAS
1 stop11h 03m
WestJet
Thu 4/238:05 am
LAS
- YYZ
1 stop10h 21m
WestJet
Deal found 3/13![WestJet logo]()
$181
This Kiwi.com deal was found by Cheapflights users on 3/13. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 4/138:00 pm
YYZ
- LAS
Nonstop5h 12m
WestJet
Mon 4/207:05 pm
LAS
- YYZ
1 stop8h 08m
WestJet
Deal found 3/13![WestJet logo]()
$182
This Kiwi.com deal was found by Cheapflights users on 3/14. 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.
Tue 4/289:45 am
YYZ
- LAS
Nonstop4h 55m
WestJet
Tue 5/56:10 pm
LAS
- YYZ
1 stop9h 45m
WestJet
Deal found 3/14![WestJet logo]()
$183
This Trip.com deal was found by Cheapflights users on 3/12. 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 Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 4/221:35 pm
YYZ
- LAS
2 stops10h 58m
WestJet
Wed 4/291:20 pm
LAS
- YYZ
2 stops13h 25m
WestJet
Deal found 3/12![WestJet logo]()
$185
This Trip.com deal was found by Cheapflights users on 3/13. 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 Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 4/101:30 pm
YYZ
- LAS
1 stop11h 03m
WestJet
Fri 4/178:05 am
LAS
- YYZ
1 stop8h 31m
WestJet
Deal found 3/13![WestJet logo]()
$186
This Trip.com deal was found by Cheapflights users on 3/16. 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 Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 6/154:30 pm
YTZ
- LAS
1 stop9h 00m
Air Canada
Tue 6/2311:25 pm
LAS
- YTZ
1 stop9h 26m
Air Canada
Deal found 3/16![Air Canada logo]()
$206
This Trip.com deal was found by Cheapflights users on 3/15. 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 Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 4/2912:30 pm
YTZ
- LAS
1 stop11h 05m
Air Canada
Wed 5/611:25 pm
LAS
- YTZ
1 stop7h 42m
Air Canada
Deal found 3/15![Air Canada logo]()
$253
This oojo deal was found by Cheapflights users on 3/16. 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 5/2310:20 pm
YYZ
- LAX
2 stops18h 45m
WestJet
Wed 5/271:15 pm
LAX
- YYZ
2 stops12h 55m
WestJet
Deal found 3/16![WestJet logo]()
$265
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 March 17, 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 March 17, 2026.
This United Airlines deal was found by Cheapflights users on 3/17. Clicking the “Pick Dates” 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 5/85:20 pm
YYZ
- LAS
1 stop7h 44m
United Airlines
Mon 5/1111:22 pm
LAS
- YYZ
1 stop7h 32m
United Airlines
Deal found 3/17![United Airlines logo]()
$249
This Delta deal was found by Cheapflights users on 3/17. Clicking the “Pick Dates” 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 4/257:00 am
YUL
- LAS
1 stop9h 41m
Delta
Fri 5/810:10 pm
LAS
- YUL
1 stop10h 25m
Delta
Deal found 3/17![Delta logo]()
$296
This Kiwi.com deal was found by Cheapflights users on 3/12. 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.
Thu 4/239:50 am
YYZ
- SFO
Nonstop5h 55m
Multiple Airlines
Mon 4/279:20 pm
SFO
- YYZ
2 stops24h 45m
Multiple Airlines
Deal found 3/12![Multiple Airlines logo]()
$329
This Air Canada deal was found by Cheapflights users on 3/17. Clicking the “Pick Dates” 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.
Fri 5/18:30 pm
YTZ
- LAS
2 stops18h 58m
Air Canada
Fri 5/811:30 pm
LAS
- YTZ
2 stops15h 52m
Air Canada
Deal found 3/17![Air Canada logo]()
$352
This Porter Airlines deal was found by Cheapflights users on 3/14. 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.
Tue 5/56:45 am
YUL
- SFO
1 stop8h 35m
Porter Airlines
Wed 5/61:20 pm
SFO
- YUL
1 stop8h 17m
Porter Airlines
Deal found 3/14![Porter Airlines logo]()
$356
This Air Transat deal was found by Cheapflights users on 3/13. 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 Transat is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 6/144:15 pm
YUL
- LAS
1 stop9h 02m
Air Transat
Mon 6/159:45 am
LAS
- YUL
1 stop7h 45m
Air Transat
Deal found 3/13![Air Transat logo]()
$363
This United Airlines deal was found by Cheapflights users on 3/17. Clicking the “Pick Dates” 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 4/58:50 am
YYZ
- LAS
1 stop9h 29m
United Airlines
Mon 4/2012:36 am
LAS
- YYZ
2 stops12h 10m
United Airlines
Deal found 3/17![United Airlines logo]()
$253
This United Airlines deal was found by Cheapflights users on 3/13. 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 4/172:30 pm
YYZ
- LAS
1 stop10h 43m
United Airlines
Tue 4/2110:50 am
LAS
- YYZ
2 stops10h 09m
United Airlines
Deal found 3/13![United Airlines logo]()
$255
This Delta deal was found by Cheapflights users on 3/17. Clicking the “Pick Dates” 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 5/127:00 am
YUL
- LAS
1 stop13h 09m
Delta
Sun 5/1710:57 am
LAS
- YUL
1 stop10h 00m
Delta
Deal found 3/17![Delta logo]()
$296
This United Airlines deal was found by Cheapflights users on 3/15. 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.
Wed 4/157:00 am
YYZ
- LAS
1 stop8h 28m
United Airlines
Sat 4/1811:59 pm
LAS
- YYZ
1 stop6h 55m
United Airlines
Deal found 3/15![United Airlines logo]()
$265
This Delta deal was found by Cheapflights users on 3/12. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 4/234:11 pm
YYZ
- LAS
1 stop6h 41m
Delta
Mon 4/2711:01 pm
LAS
- YYZ
1 stop9h 17m
Delta
Deal found 3/12![Delta logo]()
$307
This United Airlines deal was found by Cheapflights users on 3/14. 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.
Wed 5/204:18 pm
YYZ
- LAS
1 stop8h 47m
United Airlines
Mon 5/257:03 pm
LAS
- YYZ
1 stop13h 46m
United Airlines
Deal found 3/14![United Airlines logo]()
$270
This Air Canada deal was found by Cheapflights users on 3/17. Clicking the “Pick Dates” 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.
Fri 5/159:00 pm
YYZ
- LAX
1 stop7h 41m
Air Canada
Tue 5/198:45 am
LAX
- YYZ
1 stop11h 38m
Air Canada
Deal found 3/17![Air Canada logo]()
$372
This Kiwi.com deal was found by Cheapflights users on 3/14. 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.
Sat 4/188:45 am
YTZ
- LAS
1 stop11h 30m
Multiple Airlines
Wed 4/2211:05 pm
LAS
- YTZ
1 stop11h 15m
Multiple Airlines
Deal found 3/14![Multiple Airlines logo]()
$394
This United Airlines deal was found by Cheapflights users on 3/16. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 4/203:00 pm
YYZ
- LAS
1 stop10h 15m
United Airlines
Mon 4/2711:59 pm
LAS
- YYZ
1 stop6h 55m
United Airlines
Deal found 3/16![United Airlines logo]()
$270
This Porter Airlines deal was found by Cheapflights users on 3/13. 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 Porter Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 7/165:10 pm
YUL
- LAS
1 stop8h 07m
Porter Airlines
Sun 7/1911:15 pm
LAS
- YUL
2 stops16h 33m
Porter Airlines
Deal found 3/13![Porter Airlines logo]()
$401
This Delta deal was found by Cheapflights users on 3/14. 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.
Mon 5/181:34 pm
YYZ
- LAS
1 stop9h 59m
Delta
Sun 5/2410:10 pm
LAS
- YYZ
1 stop11h 09m
Delta
Deal found 3/14![Delta logo]()
$343
This Air Canada deal was found by Cheapflights users on 3/14. 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 Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 5/712:30 pm
YTZ
- LAX
1 stop10h 29m
Air Canada
Thu 5/710:30 pm
LAX
- YTZ
1 stop10h 22m
Air Canada
Deal found 3/14![Air Canada logo]()
$407
This United Airlines deal was found by Cheapflights users on 3/13. 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 4/104:18 pm
YYZ
- LAS
1 stop8h 40m
United Airlines
Mon 4/134:57 pm
LAS
- YYZ
2 stops13h 57m
United Airlines
Deal found 3/13![United Airlines logo]()
$278
This Kiwi.com deal was found by Cheapflights users on 3/12. 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.
Sun 4/192:30 pm
YTZ
- LAX
1 stop20h 05m
Multiple Airlines
Sat 4/2511:35 pm
LAX
- YTZ
1 stop16h 12m
Multiple Airlines
Deal found 3/12![Multiple Airlines logo]()
$415
This Delta deal was found by Cheapflights users on 3/14. 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 5/215:45 pm
YYZ
- LAS
1 stop8h 58m
Delta
Sun 5/2410:10 pm
LAS
- YYZ
1 stop11h 09m
Delta
Deal found 3/14![Delta logo]()
$343
This Porter Airlines deal was found by Cheapflights users on 3/13. 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 Porter Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 4/245:55 pm
YUL
- SFO
2 stops21h 50m
Porter Airlines
Thu 4/301:45 pm
SFO
- YUL
1 stop7h 50m
Porter Airlines
Deal found 3/13![Porter Airlines logo]()
$449
This Delta deal was found by Cheapflights users on 3/15. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 4/142:15 pm
YYZ
- SAN
1 stop11h 51m
Delta
Tue 4/2110:30 pm
SAN
- YYZ
1 stop10h 49m
Delta
Deal found 3/15![Delta logo]()
$352
This United Airlines deal was found by Cheapflights users on 3/17. Clicking the “Pick Dates” 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 4/1710:45 am
YYZ
- LAX
1 stop7h 13m
United Airlines
Sun 4/1912:15 am
LAX
- YYZ
1 stop6h 39m
United Airlines
Deal found 3/17![United Airlines logo]()
$299
This Mytrip deal was found by Cheapflights users on 3/17. Clicking the “Pick Dates” 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 5/111:20 am
YTZ
- LAS
1 stop8h 55m
Multiple Airlines
Fri 5/810:33 pm
LAS
- YTZ
1 stop8h 02m
Multiple Airlines
Deal found 3/17![Multiple Airlines logo]()
$440
This Air Canada deal was found by Cheapflights users on 3/14. 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 Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 5/245:30 pm
YTZ
- LAS
1 stop8h 00m
Air Canada
Wed 5/2711:25 pm
LAS
- YTZ
1 stop7h 42m
Air Canada
Deal found 3/14![Air Canada logo]()
$443
This Porter Airlines deal was found by Cheapflights users on 3/13. 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 Porter Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 8/116:45 am
YUL
- SFO
1 stop8h 35m
Porter Airlines
Thu 8/201:20 pm
SFO
- YUL
1 stop8h 17m
Porter Airlines
Deal found 3/13![Porter Airlines logo]()
$462
This Delta deal was found by Cheapflights users on 3/15. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 5/299:49 am
YYZ
- SAN
1 stop11h 12m
Delta
Sat 6/610:15 pm
SAN
- YYZ
1 stop7h 40m
Delta
Deal found 3/15![Delta logo]()
$352
This Mytrip deal was found by Cheapflights users on 3/12. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 4/107:45 am
YTZ
- LAS
2 stops19h 04m
Multiple Airlines
Mon 4/139:45 pm
LAS
- YTZ
3 stops19h 18m
Multiple Airlines
Deal found 3/12![Multiple Airlines logo]()
$454
This Delta deal was found by Cheapflights users on 3/13. 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.
Tue 4/212:15 pm
YYZ
- SAN
1 stop7h 04m
Delta
Wed 4/2210:10 pm
SAN
- YYZ
1 stop10h 08m
Delta
Deal found 3/13![Delta logo]()
$353
Last-minute flights from Ontario to CaliforniaDiscover last-minute flight deals from Ontario to California. Data last updated March 17, 2026 and is based on user searches.
Discover last-minute flight deals from Ontario to California. Data last updated March 17, 2026 and is based on user searches.
This Trip.com deal was found by Cheapflights users on 3/13. 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 Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 4/108:00 pm
YYZ
- LAS
Nonstop5h 12m
WestJet
Mon 4/1311:25 pm
LAS
- YYZ
Nonstop4h 18m
WestJet
Deal found 3/13![WestJet logo]()
$169
This Trip.com deal was found by Cheapflights users on 3/13. 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 Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 4/103:00 pm
YYZ
- LAS
1 stop9h 33m
WestJet
Wed 4/158:05 am
LAS
- YYZ
1 stop9h 21m
WestJet
Deal found 3/13![WestJet logo]()
$186
This Trip.com deal was found by Cheapflights users on 3/17. Clicking the “Pick Dates” 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.
Fri 4/1012:45 pm
YYZ
- LAX
Nonstop5h 25m
Air Canada
Sat 4/187:35 am
LAX
- YYZ
Nonstop4h 49m
Air Canada
Deal found 3/17![Air Canada logo]()
$268
This Kiwi.com deal was found by Cheapflights users on 3/13. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 4/138:00 pm
YYZ
- LAS
Nonstop5h 12m
WestJet
Mon 4/207:05 pm
LAS
- YYZ
1 stop8h 08m
WestJet
Deal found 3/13![WestJet logo]()
$182
This oojo deal was found by Cheapflights users on 3/16. 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 4/177:15 am
YYZ
- LAX
1 stop15h 37m
WestJet
Fri 4/2411:50 am
LAX
- YYZ
2 stops15h 23m
WestJet
Deal found 3/16![WestJet logo]()
$267
This Kiwi.com deal was found by Cheapflights users on 3/12. 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.
Sat 4/1810:00 am
YYZ
- LAX
1 stop9h 58m
WestJet
Thu 4/237:00 am
LAX
- YYZ
1 stop9h 36m
WestJet
Deal found 3/12![WestJet logo]()
$266
This Kiwi.com deal was found by Cheapflights users on 3/16. 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.
Mon 4/207:45 am
YYZ
- LAS
1 stop9h 13m
WestJet
Thu 4/238:05 am
LAS
- YYZ
1 stop10h 06m
WestJet
Deal found 3/16![WestJet logo]()
$178
This Kiwi.com deal was found by Cheapflights users on 3/13. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 4/211:30 pm
YYZ
- LAS
1 stop11h 03m
WestJet
Thu 4/238:05 am
LAS
- YYZ
1 stop10h 21m
WestJet
Deal found 3/13![WestJet logo]()
$181
This Trip.com deal was found by Cheapflights users on 3/13. 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 Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 4/221:35 pm
YYZ
- LAS
2 stops10h 58m
WestJet
Fri 4/247:05 pm
LAS
- YYZ
1 stop8h 08m
WestJet
Deal found 3/13![WestJet logo]()
$187
This Trip.com deal was found by Cheapflights users on 3/13. 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 Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 4/279:00 am
YYZ
- LAS
1 stop11h 15m
WestJet
Wed 4/291:45 pm
LAS
- YYZ
2 stops12h 25m
WestJet
Deal found 3/13![WestJet logo]()
$189
This Kiwi.com deal was found by Cheapflights users on 3/14. 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.
Tue 4/289:45 am
YYZ
- LAS
Nonstop4h 55m
WestJet
Tue 5/56:10 pm
LAS
- YYZ
1 stop9h 45m
WestJet
Deal found 3/14![WestJet logo]()
$183
This Trip.com deal was found by Cheapflights users on 3/15. 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 Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 4/2912:30 pm
YTZ
- LAS
1 stop11h 05m
Air Canada
Wed 5/611:25 pm
LAS
- YTZ
1 stop7h 42m
Air Canada
Deal found 3/15![Air Canada logo]()
$253
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 March 17, 2026.
Search for one-way flight options from Ontario to California. Find affordable one-way fares based on user searches. Data last updated March 17, 2026.
This Kiwi.com deal was found by Cheapflights users on 3/12. 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 4/221:35 pm
YYZ
- LAS
2 stops10h 58m
WestJet
Deal found 3/12![WestJet logo]()
$113
This Kiwi.com deal was found by Cheapflights users on 3/16. 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.
Mon 4/1312:30 pm
YYZ
- LAS
1 stop10h 46m
WestJet
Deal found 3/16![WestJet logo]()
$114
This Kiwi.com deal was found by Cheapflights users on 3/13. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 4/68:00 pm
YYZ
- LAS
Nonstop5h 12m
WestJet
Deal found 3/13![WestJet logo]()
$117
This Kiwi.com deal was found by Cheapflights users on 3/13. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 4/198:00 pm
YYZ
- LAS
Nonstop5h 12m
WestJet
Deal found 3/13![WestJet logo]()
$118
This Kiwi.com deal was found by Cheapflights users on 3/12. 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.
Sat 5/91:30 pm
YYZ
- LAS
1 stop11h 10m
WestJet
Deal found 3/12![WestJet logo]()
$119
This Kiwi.com deal was found by Cheapflights users on 3/15. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 4/267:00 am
YYZ
- LAS
2 stops11h 45m
WestJet
Deal found 3/15![WestJet logo]()
$121
This Kiwi.com deal was found by Cheapflights users on 3/16. 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.
Fri 6/53:50 pm
YYZ
- LAS
1 stop8h 50m
WestJet
Deal found 3/16![WestJet logo]()
$123
This FlightHub deal was found by Cheapflights users on 3/17. Clicking the “Pick Dates” 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 5/59:00 am
YYZ
- LAS
1 stop11h 15m
WestJet
Deal found 3/17![WestJet logo]()
$124
This FlightHub deal was found by Cheapflights users on 3/13. 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.
Mon 4/2012:00 pm
YYZ
- LAS
1 stop9h 13m
WestJet
Deal found 3/13![WestJet logo]()
$125
This Kiwi.com deal was found by Cheapflights users on 3/15. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 4/267:15 am
YUL
- LAS
2 stops12h 20m
WestJet
Deal found 3/15![WestJet logo]()
$127
This Kiwi.com deal was found by Cheapflights users on 3/13. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 4/286:45 am
YUL
- LAS
2 stops13h 30m
WestJet
Deal found 3/13![WestJet logo]()
$128
This Trip.com deal was found by Cheapflights users on 3/14. 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 Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 5/67:15 am
YUL
- LAS
2 stops11h 30m
WestJet
Deal found 3/14![WestJet logo]()
$133
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 March 17, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $169 (Trip.com) |
One-way from | $113 (Kiwi.com) |
Popular in | March |
Cheapest in | September |
Average price | $406 |
Good round-trip deal | $326 or less |
Good one-way deal | $188 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 March 17, 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 5/8
5:20 pm-10:04 pm
1 stop7h 44m
Las Vegas Harry Reid Intl
Mon 5/11
11:22 pm-9:54 am
1 stop7h 32m
$249
TorontoLas Vegas
YYZ - LAS
YYZLAS
Toronto Pearson Intl
Sun 4/5
8:50 am-3:19 pm
1 stop9h 29m
Las Vegas Harry Reid Intl
Mon 4/20
12:36 am-3:46 pm
2 stops12h 10m
$253
TorontoLas Vegas
YYZ - LAS
YYZLAS
Toronto Pearson Intl
Fri 4/17
2:30 pm-10:13 pm
1 stop10h 43m
Las Vegas Harry Reid Intl
Tue 4/21
10:50 am-11:59 pm
2 stops10h 09m
$255
TorontoLas Vegas
YYZ - LAS
YYZLAS
Toronto Pearson Intl
Wed 4/15
7:00 am-12:28 pm
1 stop8h 28m
Las Vegas Harry Reid Intl
Sat 4/18
11:59 pm-9:54 am
1 stop6h 55m
$265
TorontoLas Vegas
YYZ - LAS
YYZLAS
Toronto Pearson Intl
Wed 5/20
4:18 pm-10:05 pm
1 stop8h 47m
Las Vegas Harry Reid Intl
Mon 5/25
7:03 pm-11:49 am
1 stop13h 46m
$270
TorontoLas Vegas
YYZ - LAS
YYZLAS
Toronto Pearson Intl
Mon 4/20
3:00 pm-10:15 pm
1 stop10h 15m
Las Vegas Harry Reid Intl
Mon 4/27
11:59 pm-9:54 am
1 stop6h 55m
$270
TorontoLas Vegas
YYZ - LAS
YYZLAS
Toronto Pearson Intl
Fri 4/10
4:18 pm-9:58 pm
1 stop8h 40m
Las Vegas Harry Reid Intl
Mon 4/13
4:57 pm-9:54 am
2 stops13h 57m
$278
MontrealLas Vegas
YUL - LAS
YULLAS
Montreal Pierre Elliott Trudeau Intl
Sat 4/25
7:00 am-1:41 pm
1 stop9h 41m
Las Vegas Harry Reid Intl
Fri 5/8
10:10 pm-11:35 am
1 stop10h 25m
$296
MontrealLas Vegas
YUL - LAS
YULLAS
Montreal Pierre Elliott Trudeau Intl
Tue 5/12
7:00 am-5:09 pm
1 stop13h 09m
Las Vegas Harry Reid Intl
Sun 5/17
10:57 am-11:57 pm
1 stop10h 00m
$296
Quickest round-trip
TorontoLos Angeles
YYZ - LAX
YYZLAX
Toronto Pearson Intl
Fri 4/17
10:45 am-2:58 pm
1 stop7h 13m
Los Angeles Los Angeles
Sun 4/19
12:15 am-9:54 am
1 stop6h 39m
$299
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
YTZ-LAS
YYZ-LAX
YUL-LAS
YYZ-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
YYZ-LAS
YTZ-LAS
YYZ-LAX
YUL-LAS
What is the cheapest month to book a flight from Region of Ontario to California?
Currently, July is the cheapest month in which you can book a flight from Region of Ontario to California (average of $96). Flying from Region of Ontario to California in March is currently the most expensive (average of $183). 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 March 17, 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 46% versus a flight in the afternoon.
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 March 14, 2026.
Travelers seeking maximum savings on their Region of Ontario to California flight should consider departing on Thursday evenings when fares are most often at their lowest. Thursday at noon flights should be avoided if possible as fares are typically the most expensive at this time.
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 March 17, 2026.
The most flights from CAON to USCA are scheduled on a Tuesday (19 on average). You will have fewer flight options on Thursday, which is when the least amount of flights are scheduled (16 on average).
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 March 17, 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.
Crew
8.6
Entertainment
7.0
Food
7.6
Comfort
8.0
Boarding
8.2
Overall
8.0
Reviews
1 / 20
10.0
ExcellentJohn,Mar 2026
YYZ - PVR
Crew
8.6
Entertainment
7.0
Food
7.6
Comfort
8.0
Boarding
8.2
Overall
8.0
Reviews
1 / 20
10.0
ExcellentJohn,Mar 2026
YYZ - PVR
Crew
8.6
Entertainment
7.0
Food
7.6
Comfort
8.0
Boarding
8.2
Overall
8.0
Reviews
1 / 20
10.0
ExcellentJohn,Mar 2026
YYZ - PVR
Crew
8.6
Entertainment
7.0
Food
7.6
Comfort
8.0
Boarding
8.2
Overall
8.0
Reviews
1 / 20
10.0
ExcellentJohn,Mar 2026
YYZ - PVR
Crew
8.6
Entertainment
7.0
Food
7.6
Comfort
8.0
Boarding
8.2
Overall
8.0
Reviews
1 / 20
10.0
ExcellentJohn,Mar 2026
YYZ - PVR
Crew
8.6
Entertainment
7.0
Food
7.6
Comfort
8.0
Boarding
8.2
Overall
8.0
Reviews
1 / 20
10.0
ExcellentJohn,Mar 2026
YYZ - PVR
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 March 17, 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 March 17, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$102 | Average$481 | FlexibilityNo cancel fee | On-time67% | |
| Cheapest$116 | Average$273 | FlexibilityNo cancel fee | On-time60% | |
| Cheapest$130 | Average$358 | FlexibilityNo cancel fee | On-time52% | |
| Cheapest$142 | Average$495 | FlexibilityNo cancel fee | On-time69% | |
| Cheapest$152 | Average$412 | FlexibilityNo cancel fee | On-time50% | |
| Cheapest$171 | Average$419 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$228 | Average$481 | FlexibilityNo cancel fee | On-time71% |