$151+ Cheap flights from San Diego (SAN) to Ontario
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 12/6. Fares are subject to change and may not be available on all flights or dates of travel.
SAN — YYZ
Nov 24 — Dec 11
Round-trip
1 adult, Economy
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Find cheap flights from San Diego to Ontario 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
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Cheapest flights from San Diego to OntarioExplore the most affordable flight options available from San Diego to Ontario. Find the lowest fares from popular airlines and budget airlines, with prices last updated on October 25, 2026.
Explore the most affordable flight options available from San Diego to Ontario. Find the lowest fares from popular airlines and budget airlines, with prices last updated on October 25, 2026.
This Kiwi.com deal was found by Cheapflights users on 10/21. Clicking the “Pick Dates” 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 12/17:51 pm -
1 stop22h 51m
Tue 12/89:55 am -
2 stops35h 21m
Deal found 10/21![Multiple Airlines logo]()
$337
This Kiwi.com deal was found by Cheapflights users on 10/22. Clicking the “Pick Dates” 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 12/27:51 pm -
1 stop22h 51m
Wed 12/99:55 am -
2 stops35h 21m
Deal found 10/22![Multiple Airlines logo]()
$343
This Kiwi.com deal was found by Cheapflights users on 10/24. 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.
Fri 11/138:20 pm -
1 stop17h 56m
Thu 11/199:50 am -
1 stop11h 48m
Deal found 10/24![Multiple Airlines logo]()
$345
This Kiwi.com deal was found by Cheapflights users on 10/24. 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.
Thu 11/1910:29 pm -
1 stop29h 22m
Sat 11/218:30 pm -
1 stop14h 25m
Deal found 10/24![Multiple Airlines logo]()
$346
This Kiwi.com deal was found by Cheapflights users on 10/23. 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 11/208:50 am -
1 stop19h 01m
Wed 11/259:50 am -
1 stop27h 36m
Deal found 10/23![Multiple Airlines logo]()
$348
This Kiwi.com deal was found by Cheapflights users on 10/20. Clicking the “Pick Dates” 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 12/27:12 am -
1 stop11h 30m
Thu 12/39:50 am -
1 stop11h 20m
Deal found 10/20![Multiple Airlines logo]()
$349
This Kiwi.com deal was found by Cheapflights users on 10/23. 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 11/208:50 am -
1 stop19h 01m
Mon 11/238:30 pm -
1 stop14h 25m
Deal found 10/23![Multiple Airlines logo]()
$350
This Kiwi.com deal was found by Cheapflights users on 10/24. 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.
Fri 11/138:20 pm -
1 stop17h 56m
Fri 11/208:30 pm -
1 stop14h 25m
Deal found 10/24![Multiple Airlines logo]()
$351
This Kiwi.com deal was found by Cheapflights users on 10/23. 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.
Thu 11/128:20 pm -
1 stop7h 31m
Sun 11/228:30 pm -
1 stop14h 25m
Deal found 10/23![Multiple Airlines logo]()
$352
This Kiwi.com deal was found by Cheapflights users on 10/22. Clicking the “Pick Dates” 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 12/37:12 am -
1 stop11h 30m
Mon 12/78:30 pm -
1 stop14h 32m
Deal found 10/22![Multiple Airlines logo]()
$355
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.
Sat 12/57:12 am -
1 stop11h 30m
Tue 12/89:50 am -
1 stop11h 26m
Deal found 10/25![Multiple Airlines logo]()
$357
This Mytrip deal was found by Cheapflights users on 10/20. Clicking the “Pick Dates” 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.
Thu 11/128:20 pm -
3 stops20h 35m
Mon 11/169:10 am -
2 stops17h 47m
Deal found 10/20![Multiple Airlines logo]()
$431
Best flights from San Diego to OntarioDiscover carefully curated flight deals from San Diego to Ontario that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated October 25, 2026.
Discover carefully curated flight deals from San Diego to Ontario that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated October 25, 2026.
This Kiwi.com deal was found by Cheapflights users on 10/24. 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.
Thu 12/247:00 am -
1 stop11h 05m
Mon 1/44:35 pm -
2 stops22h 59m
Deal found 10/24![Multiple Airlines logo]()
$459
This Alaska Airlines deal was found by Cheapflights users on 10/24. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 11/146:05 pm -
2 stops19h 00m
Sat 11/215:15 pm -
2 stops18h 21m
Deal found 10/24![Alaska Airlines logo]()
$581
This United Airlines deal was found by Cheapflights users on 10/22. Clicking the “Pick Dates” 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 11/114:01 pm -
1 stop21h 07m
Sun 11/156:30 am -
1 stop20h 49m
Deal found 10/22![United Airlines logo]()
$601
This Air Canada deal was found by Cheapflights users on 10/23. 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.
Sun 1/244:45 pm -
2 stops14h 10m
Thu 1/287:20 pm -
2 stops23h 35m
Deal found 10/23![Air Canada logo]()
$624
This Kiwi.com deal was found by Cheapflights users on 10/23. 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.
Thu 11/268:15 am -
1 stop9h 04m
Wed 12/28:05 pm -
1 stop28h 50m
Deal found 10/23![Multiple Airlines logo]()
$481
This Kiwi.com deal was found by Cheapflights users on 10/20. Clicking the “Pick Dates” 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 11/116:25 am -
2 stops27h 25m
Mon 11/1610:30 am -
1 stop9h 26m
Deal found 10/20![Multiple Airlines logo]()
$483
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 12/86:30 am -
2 stops29h 30m
Tue 12/221:10 pm -
2 stops13h 48m
Deal found 10/25![Multiple Airlines logo]()
$486
This Alaska Airlines deal was found by Cheapflights users on 10/24. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/14:17 pm -
2 stops20h 48m
Tue 12/85:15 pm -
2 stops22h 52m
Deal found 10/24![Alaska Airlines logo]()
$592
This United Airlines deal was found by Cheapflights users on 10/24. 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.
Wed 12/96:23 pm -
2 stops15h 48m
Wed 12/169:45 am -
2 stops11h 04m
Deal found 10/24![United Airlines logo]()
$632
This Mytrip deal was found by Cheapflights users on 10/20. Clicking the “Pick Dates” 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.
Mon 11/301:02 pm -
3 stops26h 13m
Sat 12/59:10 am -
2 stops17h 48m
Deal found 10/20![Multiple Airlines logo]()
$486
This Alaska Airlines deal was found by Cheapflights users on 10/24. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/125:33 pm -
2 stops19h 32m
Sun 11/225:15 pm -
2 stops18h 21m
Deal found 10/24![Alaska Airlines logo]()
$596
This United Airlines deal was found by Cheapflights users on 10/20. Clicking the “Pick Dates” 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 12/157:41 pm -
2 stops15h 28m
Thu 12/176:15 am -
1 stop8h 21m
Deal found 10/20![United Airlines logo]()
$632
This Kiwi.com deal was found by Cheapflights users on 10/24. 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 12/99:58 am -
2 stops24h 12m
Wed 12/168:00 am -
1 stop29h 10m
Deal found 10/24![Multiple Airlines logo]()
$499
This Alaska Airlines deal was found by Cheapflights users on 10/23. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/196:45 pm -
2 stops18h 20m
Tue 11/245:15 pm -
2 stops18h 15m
Deal found 10/23![Alaska Airlines logo]()
$605
This United Airlines deal was found by Cheapflights users on 10/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 11/214:45 pm -
2 stops18h 24m
Fri 11/276:15 am -
1 stop8h 12m
Deal found 10/20![United Airlines logo]()
$637
This Kiwi.com deal was found by Cheapflights users on 10/22. Clicking the “Pick Dates” 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 12/48:32 am -
1 stop27h 16m
Fri 12/115:40 pm -
2 stops17h 22m
Deal found 10/22![Multiple Airlines logo]()
$502
This Alaska Airlines deal was found by Cheapflights users on 10/23. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/14:08 pm -
1 stop20h 57m
Wed 12/95:15 pm -
2 stops22h 11m
Deal found 10/23![Alaska Airlines logo]()
$636
This United Airlines deal was found by Cheapflights users on 10/23. 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.
Thu 11/199:38 am -
1 stop11h 51m
Tue 11/245:10 pm -
1 stop18h 26m
Deal found 10/23![United Airlines logo]()
$640
This Mytrip deal was found by Cheapflights users on 10/20. Clicking the “Pick Dates” 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.
Wed 12/211:16 am -
2 stops24h 44m
Sun 12/61:10 pm -
2 stops21h 52m
Deal found 10/20![Multiple Airlines logo]()
$507
This Kiwi.com deal was found by Cheapflights users on 10/21. Clicking the “Pick Dates” 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 11/165:35 pm -
1 stop18h 25m
Thu 11/194:35 pm -
1 stop9h 08m
Deal found 10/21![Multiple Airlines logo]()
$528
This Alaska Airlines deal was found by Cheapflights users on 10/21. Clicking the “Pick Dates” 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 11/44:27 pm -
2 stops20h 38m
Mon 11/95:15 pm -
2 stops18h 27m
Deal found 10/21![Alaska Airlines logo]()
$725
This Kiwi.com deal was found by Cheapflights users on 10/20. Clicking the “Pick Dates” 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 11/186:25 am -
2 stops27h 25m
Sun 11/2210:30 am -
1 stop9h 31m
Deal found 10/20![Multiple Airlines logo]()
$539
This Alaska Airlines deal was found by Cheapflights users on 10/22. Clicking the “Pick Dates” 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 11/114:25 pm -
2 stops20h 40m
Sun 11/155:15 pm -
1 stop9h 22m
Deal found 10/22![Alaska Airlines logo]()
$739
This Mytrip deal was found by Cheapflights users on 10/20. Clicking the “Pick Dates” 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 12/49:05 am -
3 stops26h 55m
Fri 12/114:15 pm -
3 stops21h 04m
Deal found 10/20![Multiple Airlines logo]()
$544
This Kiwi.com deal was found by Cheapflights users on 10/22. Clicking the “Pick Dates” 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 1/97:00 am -
1 stop11h 06m
Sun 1/1012:10 pm -
1 stop11h 53m
Deal found 10/22![Multiple Airlines logo]()
$562
This Kiwi.com deal was found by Cheapflights users on 10/21. Clicking the “Pick Dates” 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 2/27:15 am -
1 stop28h 15m
Sat 2/610:35 am -
1 stop13h 28m
Deal found 10/21![Multiple Airlines logo]()
$569
Last-minute flights from San Diego to OntarioDiscover last-minute flight deals from San Diego to Ontario. Data last updated October 25, 2026 and is based on user searches.
Discover last-minute flight deals from San Diego to Ontario. Data last updated October 25, 2026 and is based on user searches.
This Mytrip deal was found by Cheapflights users on 10/20. Clicking the “Pick Dates” 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.
Wed 11/116:25 am -
2 stops29h 35m
Mon 11/169:10 am -
2 stops17h 47m
Deal found 10/20![Multiple Airlines logo]()
$470
This Kiwi.com deal was found by Cheapflights users on 10/23. 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.
Thu 11/128:20 pm -
1 stop7h 31m
Sun 11/228:30 pm -
1 stop14h 25m
Deal found 10/23![Multiple Airlines logo]()
$352
This Mytrip deal was found by Cheapflights users on 10/20. Clicking the “Pick Dates” 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.
Thu 11/128:20 pm -
3 stops20h 35m
Mon 11/169:10 am -
2 stops17h 47m
Deal found 10/20![Multiple Airlines logo]()
$431
This Kiwi.com deal was found by Cheapflights users on 10/24. 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.
Fri 11/138:20 pm -
1 stop17h 56m
Thu 11/199:50 am -
1 stop11h 48m
Deal found 10/24![Multiple Airlines logo]()
$345
This Kiwi.com deal was found by Cheapflights users on 10/24. 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.
Fri 11/138:20 pm -
1 stop17h 56m
Fri 11/208:30 pm -
1 stop14h 25m
Deal found 10/24![Multiple Airlines logo]()
$351
This Kiwi.com deal was found by Cheapflights users on 10/24. 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.
Fri 11/138:20 pm -
1 stop17h 56m
Wed 11/189:50 am -
1 stop9h 32m
Deal found 10/24![Multiple Airlines logo]()
$366
This Kiwi.com deal was found by Cheapflights users on 10/24. 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.
Thu 11/1910:29 pm -
1 stop29h 22m
Sat 11/218:30 pm -
1 stop14h 25m
Deal found 10/24![Multiple Airlines logo]()
$346
This Kiwi.com deal was found by Cheapflights users on 10/23. 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.
Thu 11/198:20 pm -
2 stops20h 00m
Thu 11/269:50 am -
1 stop25h 30m
Deal found 10/23![Multiple Airlines logo]()
$370
This Kiwi.com deal was found by Cheapflights users on 10/23. 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 11/208:50 am -
1 stop19h 01m
Wed 11/259:50 am -
1 stop27h 36m
Deal found 10/23![Multiple Airlines logo]()
$348
This Kiwi.com deal was found by Cheapflights users on 10/23. 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 11/208:50 am -
1 stop19h 01m
Mon 11/238:30 pm -
1 stop14h 25m
Deal found 10/23![Multiple Airlines logo]()
$350
This Kiwi.com deal was found by Cheapflights users on 10/24. 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 11/258:50 am -
2 stops12h 05m
Sat 12/58:30 pm -
1 stop14h 32m
Deal found 10/24![Multiple Airlines logo]()
$361
This Kiwi.com deal was found by Cheapflights users on 10/20. Clicking the “Pick Dates” 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 11/288:50 am -
1 stop19h 01m
Thu 12/39:50 am -
1 stop11h 20m
Deal found 10/20![Multiple Airlines logo]()
$360
One-way flights from San Diego to OntarioSearch for one-way flight options from San Diego to Ontario. Find affordable one-way fares based on user searches. Data last updated October 25, 2026.
Search for one-way flight options from San Diego to Ontario. Find affordable one-way fares based on user searches. Data last updated October 25, 2026.
This Kiwi.com deal was found by Cheapflights users on 10/22. Clicking the “Pick Dates” 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 12/67:51 pm -
1 stop22h 51m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/22![Multiple Airlines logo]()
$151
This Kiwi.com deal was found by Cheapflights users on 10/20. Clicking the “Pick Dates” 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 1/313:30 pm -
1 stop27h 09m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/20![Multiple Airlines logo]()
$159
This Kiwi.com deal was found by Cheapflights users on 10/21. Clicking the “Pick Dates” 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 1/243:09 pm -
1 stop22h 41m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/21![Multiple Airlines logo]()
$160
This Kiwi.com deal was found by Cheapflights users on 10/22. Clicking the “Pick Dates” 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 2/136:57 pm -
1 stop8h 53m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/22![Multiple Airlines logo]()
$170
This Kiwi.com deal was found by Cheapflights users on 10/21. Clicking the “Pick Dates” 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 2/78:52 pm -
2 stops20h 48m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/21![Multiple Airlines logo]()
$183
This Kiwi.com deal was found by Cheapflights users on 10/20. Clicking the “Pick Dates” 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 11/238:11 pm -
1 stop22h 32m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/20![Multiple Airlines logo]()
$184
This Kiwi.com deal was found by Cheapflights users on 10/21. Clicking the “Pick Dates” 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 11/218:04 pm -
1 stop7h 47m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/21![Multiple Airlines logo]()
$185
This Kiwi.com deal was found by Cheapflights users on 10/22. Clicking the “Pick Dates” 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 11/278:50 am -
1 stop19h 01m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/22![Multiple Airlines logo]()
$193
This Kiwi.com deal was found by Cheapflights users on 10/20. Clicking the “Pick Dates” 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 12/177:56 pm -
1 stop7h 56m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/20![Multiple Airlines logo]()
$195
This Kiwi.com deal was found by Cheapflights users on 10/20. Clicking the “Pick Dates” 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 11/238:50 am -
2 stops25h 00m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/20![Multiple Airlines logo]()
$198
This Alaska Airlines deal was found by Cheapflights users on 10/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/166:35 pm -
2 stops18h 30m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/20![Alaska Airlines logo]()
$206
This Kiwi.com deal was found by Cheapflights users on 10/22. Clicking the “Pick Dates” 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 12/68:57 am -
2 stops54h 18m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/22![Multiple Airlines logo]()
$207
Find flight deals from San Diego to Ontario
Keep the following information in mind while searching for San Diego to Ontario flight deals. Data was last updated October 25, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $337 (Kiwi.com) |
One-way from | $151 (Kiwi.com) |
Popular in | August |
Cheapest in | January |
Average price | $672 |
Good round-trip deal | $682 or less |
Good one-way deal | $359 or less |
Cheapflights Fare Finder
Customize your flight search to find flights from San Diego to Ontario that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 7,457,451 searches. Data last updated October 25, 2026.
Use the filters below to find and compare flights from San Diego to Ontario that are best for you.
Fly from
Fly to
Route
Depart
Return
Cheapest round-trip
San DiegoOttawa
SAN San Diego - YOW Ottawa
SANYOW
San Diego
Wed 12/2
2:21 pm-5:15 pm
2 stops23h 54m
Ottawa
Wed 12/31
12:00 am-9:00 pm
Nonstop0h 00m
$217
San DiegoOttawa
SAN San Diego - YOW Ottawa
SANYOW
San Diego
Tue 1/12
3:30 pm-12:50 am
3 stops30h 20m
Ottawa
Wed 12/31
12:00 am-9:00 pm
Nonstop0h 00m
$227
San DiegoToronto
SAN San Diego - YTZ Toronto Island
SANYTZ
San Diego
Mon 11/23
8:43 pm-6:29 pm
1 stop18h 46m
Toronto Island
Wed 12/31
12:00 am-9:00 pm
Nonstop0h 00m
$239
San DiegoToronto
SAN San Diego - YTZ Toronto Island
SANYTZ
San Diego
Sun 1/24
8:37 pm-12:52 pm
3 stops37h 15m
Toronto Island
Wed 12/31
12:00 am-9:00 pm
Nonstop0h 00m
$245
San DiegoOttawa
SAN San Diego - YOW Ottawa
SANYOW
San Diego
Tue 12/1
7:51 pm-5:56 pm
2 stops43h 05m
Ottawa
Wed 12/31
12:00 am-9:00 pm
Nonstop0h 00m
$247
San DiegoOttawa
SAN San Diego - YOW Ottawa
SANYOW
San Diego
Thu 12/17
6:36 am-11:40 pm
3 stops38h 04m
Ottawa
Wed 12/31
12:00 am-9:00 pm
Nonstop0h 00m
$257
San DiegoOttawa
SAN San Diego - YOW Ottawa
SANYOW
San Diego
Mon 1/18
3:09 pm-1:00 pm
2 stops18h 51m
Ottawa
Wed 12/31
12:00 am-9:00 pm
Nonstop0h 00m
$267
San DiegoToronto
SAN San Diego - YTZ Toronto Island
SANYTZ
San Diego
Sat 2/13
8:00 am-9:06 pm
1 stop10h 06m
Toronto Island
Wed 12/31
12:00 am-9:00 pm
Nonstop0h 00m
$269
San DiegoToronto
SAN San Diego - YYZ Toronto Pearson Intl
SANYYZ
San Diego
Thu 2/11
7:30 am-12:29 am
1 stop13h 59m
Toronto Pearson Intl
Wed 12/31
12:00 am-9:00 pm
Nonstop0h 00m
$280
San DiegoToronto
SAN San Diego - YYZ Toronto Pearson Intl
SANYYZ
San Diego
Tue 12/29
5:33 pm-4:05 pm
2 stops19h 32m
Toronto Pearson Intl
Wed 12/31
12:00 am-9:00 pm
Nonstop0h 00m
$293
Showing 1-10 of 54 resultsSorted by cheapest first
Best time to book a flight from San Diego to Ontario
Have a flexible travel schedule? Discover the best time to fly to Ontario from San Diego with our price prediction graph.
SAN-YYZ
SAN-YTZ
SAN-YOW
SAN-YQG
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 San Diego to Ontario
SAN-CAON
SAN-YYZ
SAN-YTZ
SAN-YOW
SAN-YQG
What is the cheapest month to book a flight from San Diego to Region of Ontario?
Currently, March is the cheapest month in which you can book a flight from San Diego to Region of Ontario (average of $434). Flying from San Diego to Region of Ontario in August is currently the most expensive (average of $672). 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 SAN to ON?
Find hourly flight availability from San Diego to Ontario. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated October 25, 2026.
When flying from San Diego to Region of Ontario, the time of day you decide to fly out makes little to no difference towards the overall price you’ll pay on tickets.
How much does it cost to fly round-trip from San Diego to Region of Ontario?
Airfare is below average for this route at the moment.
San Diego to Region of Ontario flights typically cost between $512 and $1,290 in December.The cheapest round-trip price found within the last 5 days was $337 on Multiple Airlines (Dec 1-Dec 8).
How far ahead should I book a flight from San Diego to Region of Ontario?
The price you pay for your flight from San Diego to Region of Ontario may vary depending on when you book. For the best chance of a lower fare, look to book 65 days in advance of your trip. Fares are likely to increase a fortnight or so before your departure date.
Reviews of airlines servicing Ontario
Get insights into the airlines that provide service to Ontario. 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 Ontario. Reviews last updated October 25, 2026.
See what other customers who have flown with Delta,Qatar Airways, andUnited Airlines from San Diego to Ontario have to say. 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.
Boarding
8.1
Crew
8.5
Overall
7.8
Comfort
7.8
Entertainment
7.8
Food
7.2
Reviews
1 / 20
10.0
ExcellentAaron,Oct 2024
LAX - LHR
Boarding
8.1
Crew
8.5
Overall
7.8
Comfort
7.8
Entertainment
7.8
Food
7.2
Reviews
1 / 20
10.0
ExcellentAaron,Oct 2024
LAX - LHR
Boarding
8.1
Crew
8.5
Overall
7.8
Comfort
7.8
Entertainment
7.8
Food
7.2
Reviews
1 / 20
10.0
ExcellentAaron,Oct 2024
LAX - LHR
Boarding
8.1
Crew
8.5
Overall
7.8
Comfort
7.8
Entertainment
7.8
Food
7.2
Reviews
1 / 20
10.0
ExcellentAaron,Oct 2024
LAX - LHR
Boarding
8.1
Crew
8.5
Overall
7.8
Comfort
7.8
Entertainment
7.8
Food
7.2
Reviews
1 / 20
10.0
ExcellentAaron,Oct 2024
LAX - LHR
Boarding
8.1
Crew
8.5
Overall
7.8
Comfort
7.8
Entertainment
7.8
Food
7.2
Reviews
1 / 20
10.0
ExcellentAaron,Oct 2024
LAX - LHR
Related info for your journey
Find useful and relevant information for your journey from San Diego to Ontario. 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 San Diego to Ontario
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Complete your trip
Complete your trip to Ontario by adding a car rental and/or hotel reservation to your travel itinerary.
Search flights from San Diego to Ontario by cabin class
Find flights from San Diego to Ontario, based on your preferred cabin class, be it economy, premium economy, business, or first class.
San Diego and Ontario flights
Browse other San Diego and Ontario flight options. Last updated on October 25, 2026.
Popular flight searches
Check out other popular destinations found by fellow travelers in 2026
San Diego to Ontario flights
Consider these flights traveling from San Diego to Ontario.
Top 5 airlines flying from San Diego to Ontario
Discover the top 5 airlines that operate flights from San Diego to Ontario. 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 25, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$132 | Average$507 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$155 | Average$643 | FlexibilityNo cancel fee | On-time69% | |
| Cheapest$170 | Average$331 | FlexibilityNo cancel fee | On-time60% | |
| Cheapest$236 | Average$580 | FlexibilityNo cancel fee | On-time67% | |
| Cheapest$418 | Average$613 | FlexibilityNo cancel fee | On-time71% |