$238+ Cheap flights from Oakland, CA (OAK) to Ontario
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 9/13. Fares are subject to change and may not be available on all flights or dates of travel.
OAK — YYZ
Aug 7 — Aug 141
Round-trip
1 adult, Economy
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Cheapest flights from Oakland to OntarioExplore the most affordable flight options available from Oakland to Ontario. Find the lowest fares from popular airlines and budget airlines, with prices last updated on July 8, 2026.
Explore the most affordable flight options available from Oakland to Ontario. Find the lowest fares from popular airlines and budget airlines, with prices last updated on July 8, 2026.
This Kiwi.com deal was found by Cheapflights users on 7/8. Clicking the “Pick Dates” 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 8/2212:13 pm
OAK
- YYZ
1 stop15h 26m
Multiple Airlines
Sun 8/308:35 pm
YYZ
- OAK
2 stops17h 31m
Multiple Airlines
Deal found 7/8![Multiple Airlines logo]()
$488
This Kiwi.com deal was found by Cheapflights users on 7/3. Clicking the “Pick Dates” 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 9/912:13 pm
OAK
- YYZ
2 stops33h 52m
Multiple Airlines
Wed 9/164:55 pm
YYZ
- OAK
1 stop8h 59m
Multiple Airlines
Deal found 7/3![Multiple Airlines logo]()
$515
This Kiwi.com deal was found by Cheapflights users on 7/6. Clicking the “Pick Dates” 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 10/712:13 pm
OAK
- YYZ
2 stops13h 57m
Multiple Airlines
Wed 10/144:55 pm
YYZ
- OAK
1 stop9h 00m
Multiple Airlines
Deal found 7/6![Multiple Airlines logo]()
$523
This Kiwi.com deal was found by Cheapflights users on 7/4. Clicking the “Pick Dates” 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 10/1312:13 pm
OAK
- YYZ
2 stops14h 32m
Multiple Airlines
Tue 10/204:55 pm
YYZ
- OAK
1 stop9h 00m
Multiple Airlines
Deal found 7/4![Multiple Airlines logo]()
$534
This Kiwi.com deal was found by Cheapflights users on 7/6. Clicking the “Pick Dates” 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 9/212:13 pm
OAK
- YYZ
1 stop15h 26m
Multiple Airlines
Tue 9/88:00 am
YYZ
- OAK
2 stops16h 28m
Multiple Airlines
Deal found 7/6![Multiple Airlines logo]()
$538
This Kiwi.com deal was found by Cheapflights users on 7/5. Clicking the “Pick Dates” 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 8/2912:13 pm
OAK
- YYZ
2 stops14h 32m
Multiple Airlines
Wed 9/24:55 pm
YYZ
- OAK
1 stop8h 59m
Multiple Airlines
Deal found 7/5![Multiple Airlines logo]()
$540
This Kiwi.com deal was found by Cheapflights users on 7/5. Clicking the “Pick Dates” 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 8/261:29 pm
OAK
- YYZ
2 stops28h 21m
Multiple Airlines
Wed 9/24:55 pm
YYZ
- OAK
1 stop8h 59m
Multiple Airlines
Deal found 7/5![Multiple Airlines logo]()
$550
This Kiwi.com deal was found by Cheapflights users on 7/5. Clicking the “Pick Dates” 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 8/248:37 pm
OAK
- YYZ
1 stop17h 32m
Multiple Airlines
Wed 9/24:55 pm
YYZ
- OAK
1 stop8h 59m
Multiple Airlines
Deal found 7/5![Multiple Airlines logo]()
$552
This Kiwi.com deal was found by Cheapflights users on 7/5. Clicking the “Pick Dates” 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 8/248:37 pm
OAK
- YYZ
1 stop17h 32m
Multiple Airlines
Tue 9/14:55 pm
YYZ
- OAK
2 stops24h 38m
Multiple Airlines
Deal found 7/5![Multiple Airlines logo]()
$554
This Kiwi.com deal was found by Cheapflights users on 7/5. Clicking the “Pick Dates” 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 8/2512:13 pm
OAK
- YYZ
2 stops14h 32m
Multiple Airlines
Wed 9/24:55 pm
YYZ
- OAK
1 stop8h 59m
Multiple Airlines
Deal found 7/5![Multiple Airlines logo]()
$557
This Kiwi.com deal was found by Cheapflights users on 7/5. Clicking the “Pick Dates” 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 8/2811:15 pm
OAK
- YYZ
1 stop18h 40m
Multiple Airlines
Wed 9/24:55 pm
YYZ
- OAK
1 stop8h 59m
Multiple Airlines
Deal found 7/5![Multiple Airlines logo]()
$559
This Delta deal was found by Cheapflights users on 7/6. Clicking the “Pick Dates” 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 9/115:00 pm
OAK
- YUL
2 stops27h 44m
Delta
Tue 9/157:00 am
YUL
- OAK
2 stops19h 59m
Delta
Deal found 7/6![Delta logo]()
$608
Best flights from Oakland to OntarioDiscover carefully curated flight deals from Oakland to Ontario that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated July 8, 2026.
Discover carefully curated flight deals from Oakland to Ontario that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated July 8, 2026.
This Delta deal was found by Cheapflights users on 7/7. Clicking the “Pick Dates” 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 9/246:00 am
OAK
- YYZ
1 stop7h 44m
Delta
Mon 9/285:54 pm
YYZ
- OAK
1 stop9h 05m
Delta
Deal found 7/7![Delta logo]()
$599
This Alaska Airlines deal was found by Cheapflights users on 7/3. Clicking the “Pick Dates” 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 9/166:01 am
OAK
- YYZ
1 stop30h 44m
Alaska Airlines
Mon 9/214:55 pm
YYZ
- OAK
1 stop8h 59m
Alaska Airlines
Deal found 7/3![Alaska Airlines logo]()
$712
This Gotogate deal was found by Cheapflights users on 7/3. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/97:51 pm
OAK
- YTZ
2 stops10h 49m
Multiple Airlines
Wed 9/1610:05 am
YTZ
- OAK
2 stops14h 23m
Multiple Airlines
Deal found 7/3![Multiple Airlines logo]()
$820
This Delta deal was found by Cheapflights users on 7/6. Clicking the “Pick Dates” 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 9/115:00 pm
OAK
- YUL
2 stops27h 44m
Delta
Tue 9/157:00 am
YUL
- OAK
2 stops19h 59m
Delta
Deal found 7/6![Delta logo]()
$608
This Alaska Airlines deal was found by Cheapflights users on 7/7. Clicking the “Pick Dates” 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 9/298:04 am
OAK
- YYZ
2 stops11h 55m
Alaska Airlines
Wed 9/304:55 pm
YYZ
- OAK
1 stop8h 59m
Alaska Airlines
Deal found 7/7![Alaska Airlines logo]()
$716
This Delta deal was found by Cheapflights users on 7/7. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 7/295:05 pm
OAK
- YUL
2 stops27h 47m
Delta
Tue 8/47:00 am
YUL
- OAK
2 stops36h 14m
Delta
Deal found 7/7![Delta logo]()
$653
This Alaska Airlines deal was found by Cheapflights users on 7/6. Clicking the “Pick Dates” 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 10/1712:20 pm
OAK
- YYZ
1 stop24h 25m
Alaska Airlines
Fri 10/234:55 pm
YYZ
- OAK
1 stop9h 00m
Alaska Airlines
Deal found 7/6![Alaska Airlines logo]()
$731
This Delta deal was found by Cheapflights users on 7/3. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 8/115:00 pm
OAK
- YYZ
2 stops15h 25m
Delta
Tue 8/185:50 pm
YYZ
- OAK
1 stop9h 06m
Delta
Deal found 7/3![Delta logo]()
$666
This Mytrip deal was found by Cheapflights users on 7/7. Clicking the “Pick Dates” 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 9/111:30 pm
OAK
- YTZ
3 stops29h 25m
Multiple Airlines
Mon 9/78:55 pm
YTZ
- OAK
3 stops24h 39m
Multiple Airlines
Deal found 7/7![Multiple Airlines logo]()
$856
This Delta deal was found by Cheapflights users on 7/7. Clicking the “Pick Dates” 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 9/46:00 am
OAK
- YYZ
2 stops14h 57m
Delta
Sun 9/66:10 am
YYZ
- OAK
2 stops8h 42m
Delta
Deal found 7/7![Delta logo]()
$686
This Alaska Airlines deal was found by Cheapflights users on 7/3. Clicking the “Pick Dates” 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 8/228:04 am
OAK
- YYZ
2 stops11h 50m
Alaska Airlines
Tue 8/256:46 am
YYZ
- OAK
2 stops15h 09m
Alaska Airlines
Deal found 7/3![Alaska Airlines logo]()
$762
This Delta deal was found by Cheapflights users on 7/7. Clicking the “Pick Dates” 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 8/26:00 am
OAK
- YUL
2 stops26h 39m
Delta
Sat 8/87:00 am
YUL
- OAK
2 stops18h 38m
Delta
Deal found 7/7![Delta logo]()
$691
This Alaska Airlines deal was found by Cheapflights users on 7/3. Clicking the “Pick Dates” 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 8/115:35 pm
OAK
- YYZ
2 stops14h 24m
Alaska Airlines
Tue 8/186:46 am
YYZ
- OAK
2 stops15h 47m
Alaska Airlines
Deal found 7/3![Alaska Airlines logo]()
$775
This Gotogate deal was found by Cheapflights users on 7/2. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/187:51 pm
OAK
- YTZ
2 stops10h 49m
Multiple Airlines
Sun 9/209:15 am
YTZ
- OAK
2 stops16h 39m
Multiple Airlines
Deal found 7/2![Multiple Airlines logo]()
$965
This Delta deal was found by Cheapflights users on 7/5. Clicking the “Pick Dates” 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 9/215:00 pm
OAK
- YUL
2 stops27h 59m
Delta
Fri 9/257:00 am
YUL
- OAK
2 stops19h 59m
Delta
Deal found 7/5![Delta logo]()
$699
This Mytrip deal was found by Cheapflights users on 7/6. Clicking the “Pick Dates” 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 8/1811:30 pm
OAK
- YTZ
3 stops29h 25m
Multiple Airlines
Sun 8/238:55 pm
YTZ
- OAK
3 stops28h 05m
Multiple Airlines
Deal found 7/6![Multiple Airlines logo]()
$997
This Delta deal was found by Cheapflights users on 7/5. Clicking the “Pick Dates” 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 9/165:00 pm
OAK
- YUL
2 stops20h 19m
Delta
Wed 9/237:00 am
YUL
- OAK
2 stops19h 59m
Delta
Deal found 7/5![Delta logo]()
$699
This Gotogate deal was found by Cheapflights users on 7/3. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 8/118:10 pm
OAK
- YTZ
2 stops21h 50m
Multiple Airlines
Tue 8/1811:20 am
YTZ
- OAK
2 stops26h 46m
Multiple Airlines
Deal found 7/3![Multiple Airlines logo]()
$1,005
This Delta deal was found by Cheapflights users on 7/5. Clicking the “Pick Dates” 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 9/186:00 am
OAK
- YUL
2 stops28h 38m
Delta
Thu 9/247:00 am
YUL
- OAK
2 stops19h 59m
Delta
Deal found 7/5![Delta logo]()
$703
This Mytrip deal was found by Cheapflights users on 7/7. Clicking the “Pick Dates” 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 8/411:15 pm
OAK
- YOW
3 stops22h 10m
Multiple Airlines
Tue 8/117:00 am
YOW
- OAK
3 stops17h 44m
Multiple Airlines
Deal found 7/7![Multiple Airlines logo]()
$1,010
This Delta deal was found by Cheapflights users on 7/7. Clicking the “Pick Dates” 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 8/35:00 pm
OAK
- YUL
2 stops27h 52m
Delta
Sat 8/87:00 am
YUL
- OAK
2 stops18h 38m
Delta
Deal found 7/7![Delta logo]()
$721
This Delta deal was found by Cheapflights users on 7/7. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 8/45:00 pm
OAK
- YUL
2 stops27h 52m
Delta
Sat 8/87:00 am
YUL
- OAK
2 stops18h 38m
Delta
Deal found 7/7![Delta logo]()
$721
This Gotogate deal was found by Cheapflights users on 7/5. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 8/196:04 am
OAK
- YHM
2 stops32h 11m
Multiple Airlines
Wed 8/267:25 am
YHM
- OAK
2 stops14h 30m
Multiple Airlines
Deal found 7/5![Multiple Airlines logo]()
$1,141
This Delta deal was found by Cheapflights users on 7/7. Clicking the “Pick Dates” 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 7/305:05 pm
OAK
- YUL
2 stops27h 50m
Delta
Sat 8/87:00 am
YUL
- OAK
2 stops18h 38m
Delta
Deal found 7/7![Delta logo]()
$725
This Expedia deal was found by Cheapflights users on 7/3. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 8/210:20 am
OAK
- YOW
2 stops16h 25m
Multiple Airlines
Sat 8/810:00 am
YOW
- OAK
2 stops12h 46m
Multiple Airlines
Deal found 7/3![Multiple Airlines logo]()
$1,173
This Delta deal was found by Cheapflights users on 7/7. Clicking the “Pick Dates” 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 7/286:00 am
OAK
- YUL
2 stops14h 40m
Delta
Tue 8/412:47 pm
YUL
- OAK
2 stops30h 27m
Delta
Deal found 7/7![Delta logo]()
$735
This Delta deal was found by Cheapflights users on 7/3. Clicking the “Pick Dates” 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 8/215:00 pm
OAK
- YYZ
2 stops14h 25m
Delta
Tue 8/257:45 am
YYZ
- OAK
2 stops11h 29m
Delta
Deal found 7/3![Delta logo]()
$739
This Gotogate deal was found by Cheapflights users on 7/2. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 8/217:51 pm
OAK
- YHM
2 stops18h 24m
Multiple Airlines
Mon 8/247:25 am
YHM
- OAK
2 stops14h 30m
Multiple Airlines
Deal found 7/2![Multiple Airlines logo]()
$1,202
This Delta deal was found by Cheapflights users on 7/6. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 8/136:00 am
OAK
- YYZ
2 stops14h 03m
Delta
Thu 8/2011:40 am
YYZ
- OAK
2 stops15h 16m
Delta
Deal found 7/6![Delta logo]()
$739
This Mytrip deal was found by Cheapflights users on 7/3. Clicking the “Pick Dates” 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 7/228:22 pm
OAK
- YTZ
3 stops20h 51m
Multiple Airlines
Wed 7/298:55 pm
YTZ
- OAK
3 stops24h 39m
Multiple Airlines
Deal found 7/3![Multiple Airlines logo]()
$1,244
Last-minute flights from Oakland to OntarioDiscover last-minute flight deals from Oakland to Ontario. Data last updated July 8, 2026 and is based on user searches.
Discover last-minute flight deals from Oakland to Ontario. Data last updated July 8, 2026 and is based on user searches.
This Delta deal was found by Cheapflights users on 7/7. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 7/2912:30 pm
OAK
- YUL
2 stops32h 22m
Delta
Wed 8/57:00 am
YUL
- OAK
2 stops19h 56m
Delta
Deal found 7/7![Delta logo]()
$653
This Delta deal was found by Cheapflights users on 7/7. Clicking the “Pick Dates” 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 7/305:05 pm
OAK
- YUL
2 stops27h 50m
Delta
Tue 8/412:47 pm
YUL
- OAK
2 stops30h 27m
Delta
Deal found 7/7![Delta logo]()
$688
This Delta deal was found by Cheapflights users on 7/7. Clicking the “Pick Dates” 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 8/26:00 am
OAK
- YUL
2 stops26h 39m
Delta
Wed 8/57:00 am
YUL
- OAK
2 stops19h 56m
Delta
Deal found 7/7![Delta logo]()
$655
This Kiwi.com deal was found by Cheapflights users on 7/8. Clicking the “Pick Dates” 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 8/2212:13 pm
OAK
- YYZ
1 stop15h 26m
Multiple Airlines
Sun 8/308:35 pm
YYZ
- OAK
2 stops17h 31m
Multiple Airlines
Deal found 7/8![Multiple Airlines logo]()
$488
This Kiwi.com deal was found by Cheapflights users on 7/5. Clicking the “Pick Dates” 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 8/248:37 pm
OAK
- YYZ
1 stop17h 32m
Multiple Airlines
Wed 9/24:55 pm
YYZ
- OAK
1 stop8h 59m
Multiple Airlines
Deal found 7/5![Multiple Airlines logo]()
$552
This Kiwi.com deal was found by Cheapflights users on 7/5. Clicking the “Pick Dates” 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 8/248:37 pm
OAK
- YYZ
1 stop17h 32m
Multiple Airlines
Tue 9/14:55 pm
YYZ
- OAK
2 stops24h 38m
Multiple Airlines
Deal found 7/5![Multiple Airlines logo]()
$554
This Kiwi.com deal was found by Cheapflights users on 7/5. Clicking the “Pick Dates” 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 8/2412:13 pm
OAK
- YYZ
1 stop15h 26m
Multiple Airlines
Mon 8/315:10 pm
YYZ
- OAK
2 stops24h 23m
Multiple Airlines
Deal found 7/5![Multiple Airlines logo]()
$560
This Kiwi.com deal was found by Cheapflights users on 7/5. Clicking the “Pick Dates” 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 8/2512:13 pm
OAK
- YYZ
1 stop15h 26m
Multiple Airlines
Tue 9/14:55 pm
YYZ
- OAK
2 stops24h 38m
Multiple Airlines
Deal found 7/5![Multiple Airlines logo]()
$557
This Kiwi.com deal was found by Cheapflights users on 7/5. Clicking the “Pick Dates” 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 8/2512:13 pm
OAK
- YYZ
1 stop15h 26m
Multiple Airlines
Fri 8/285:10 pm
YYZ
- OAK
2 stops24h 23m
Multiple Airlines
Deal found 7/5![Multiple Airlines logo]()
$561
This Kiwi.com deal was found by Cheapflights users on 7/5. Clicking the “Pick Dates” 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 8/261:29 pm
OAK
- YYZ
2 stops28h 21m
Multiple Airlines
Wed 9/24:55 pm
YYZ
- OAK
1 stop8h 59m
Multiple Airlines
Deal found 7/5![Multiple Airlines logo]()
$550
This Kiwi.com deal was found by Cheapflights users on 7/5. Clicking the “Pick Dates” 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 8/2811:15 pm
OAK
- YYZ
1 stop18h 40m
Multiple Airlines
Wed 9/24:55 pm
YYZ
- OAK
1 stop8h 59m
Multiple Airlines
Deal found 7/5![Multiple Airlines logo]()
$559
This Kiwi.com deal was found by Cheapflights users on 7/5. Clicking the “Pick Dates” 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 8/2912:13 pm
OAK
- YYZ
2 stops14h 32m
Multiple Airlines
Wed 9/24:55 pm
YYZ
- OAK
1 stop8h 59m
Multiple Airlines
Deal found 7/5![Multiple Airlines logo]()
$540
One-way flights from Oakland to OntarioSearch for one-way flight options from Oakland to Ontario. Find affordable one-way fares based on user searches. Data last updated July 8, 2026.
Search for one-way flight options from Oakland to Ontario. Find affordable one-way fares based on user searches. Data last updated July 8, 2026.
This Kiwi.com deal was found by Cheapflights users on 7/6. Clicking the “Pick Dates” 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 9/1312:13 pm
OAK
- YYZ
2 stops13h 57m
Multiple Airlines
Deal found 7/6![Multiple Airlines logo]()
$238
This Kiwi.com deal was found by Cheapflights users on 7/5. Clicking the “Pick Dates” 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 8/191:29 pm
OAK
- YYZ
2 stops28h 21m
Multiple Airlines
Deal found 7/5![Multiple Airlines logo]()
$261
This Delta deal was found by Cheapflights users on 7/7. Clicking the “Pick Dates” 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 9/246:00 am
OAK
- YYZ
1 stop7h 44m
Delta
Deal found 7/7![Delta logo]()
$271
This Delta deal was found by Cheapflights users on 7/3. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 7/295:05 pm
OAK
- YYZ
2 stops12h 50m
Delta
Deal found 7/3![Delta logo]()
$276
This Delta deal was found by Cheapflights users on 7/3. Clicking the “Pick Dates” 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 7/275:05 pm
OAK
- YYZ
2 stops15h 20m
Delta
Deal found 7/3![Delta logo]()
$282
This Mytrip deal was found by Cheapflights users on 7/8. Clicking the “Pick Dates” 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 9/2511:30 pm
OAK
- YYZ
2 stops21h 45m
Multiple Airlines
Deal found 7/8![Multiple Airlines logo]()
$286
This Kiwi.com deal was found by Cheapflights users on 7/6. Clicking the “Pick Dates” 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 8/208:37 pm
OAK
- YTZ
2 stops40h 23m
Multiple Airlines
Deal found 7/6![Multiple Airlines logo]()
$294
This Delta deal was found by Cheapflights users on 7/6. Clicking the “Pick Dates” 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 7/2112:30 pm
OAK
- YUL
2 stops32h 22m
Delta
Deal found 7/6![Delta logo]()
$299
This Delta deal was found by Cheapflights users on 7/5. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 8/196:00 am
OAK
- YYZ
2 stops14h 10m
Delta
Deal found 7/5![Delta logo]()
$311
This Delta deal was found by Cheapflights users on 7/6. Clicking the “Pick Dates” 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 8/105:00 pm
OAK
- YUL
2 stops27h 40m
Delta
Deal found 7/6![Delta logo]()
$313
This Delta deal was found by Cheapflights users on 7/6. Clicking the “Pick Dates” 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 8/712:33 pm
OAK
- YUL
2 stops32h 07m
Delta
Deal found 7/6![Delta logo]()
$323
This Delta deal was found by Cheapflights users on 7/6. Clicking the “Pick Dates” 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 7/205:05 pm
OAK
- YUL
2 stops27h 47m
Delta
Deal found 7/6![Delta logo]()
$324
Find flight deals from Oakland to Ontario
Keep the following information in mind while searching for Oakland to Ontario flight deals. Data was last updated July 8, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $488 (Kiwi.com) |
One-way from | $238 (Kiwi.com) |
Popular in | December |
Cheapest in | January |
Average price | $570 |
Cheapflights Fare Finder
Customize your flight search to find flights from Oakland 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 2,558,603 searches. Data last updated July 8, 2026.
Use the filters below to find and compare flights from Oakland to Ontario that are best for you.
Fly from
Fly to
Route
Depart
Return
Cheapest round-trip
Quickest round-trip
OaklandToronto
OAK - YYZ
OAKYYZ
Oakland
Thu 9/24
6:00 am-4:44 pm
1 stop7h 44m
Toronto Pearson Intl
Mon 9/28
5:54 pm-11:59 pm
1 stop9h 05m
$599
OaklandMontreal
OAK - YUL
OAKYUL
Oakland
Fri 9/11
5:00 pm-11:44 pm
2 stops27h 44m
Montreal Pierre Elliott Trudeau Intl
Tue 9/15
7:00 am-11:59 pm
2 stops19h 59m
$608
OaklandMontreal
OAK - YUL
OAKYUL
Oakland
Wed 7/29
5:05 pm-11:52 pm
2 stops27h 47m
Montreal Pierre Elliott Trudeau Intl
Tue 8/4
7:00 am-4:14 pm
2 stops36h 14m
$653
OaklandToronto
OAK - YYZ
OAKYYZ
Oakland
Tue 8/11
5:00 pm-11:25 am
2 stops15h 25m
Toronto Pearson Intl
Tue 8/18
5:50 pm-11:56 pm
1 stop9h 06m
$666
OaklandToronto
OAK - YYZ
OAKYYZ
Oakland
Fri 9/4
6:00 am-11:57 pm
2 stops14h 57m
Toronto Pearson Intl
Sun 9/6
6:10 am-11:52 am
2 stops8h 42m
$686
OaklandMontreal
OAK - YUL
OAKYUL
Oakland
Sun 8/2
6:00 am-11:39 am
2 stops26h 39m
Montreal Pierre Elliott Trudeau Intl
Sat 8/8
7:00 am-10:38 pm
2 stops18h 38m
$691
OaklandMontreal
OAK - YUL
OAKYUL
Oakland
Mon 9/21
5:00 pm-11:59 pm
2 stops27h 59m
Montreal Pierre Elliott Trudeau Intl
Fri 9/25
7:00 am-11:59 pm
2 stops19h 59m
$699
OaklandMontreal
OAK - YUL
OAKYUL
Oakland
Wed 9/16
5:00 pm-4:19 pm
2 stops20h 19m
Montreal Pierre Elliott Trudeau Intl
Wed 9/23
7:00 am-11:59 pm
2 stops19h 59m
$699
OaklandMontreal
OAK - YUL
OAKYUL
Oakland
Fri 9/18
6:00 am-1:38 pm
2 stops28h 38m
Montreal Pierre Elliott Trudeau Intl
Thu 9/24
7:00 am-11:59 pm
2 stops19h 59m
$703
OaklandToronto
OAK - YYZ
OAKYYZ
Oakland
Wed 9/16
6:01 am-3:45 pm
1 stop30h 44m
Toronto Pearson Intl
Mon 9/21
4:55 pm-10:54 pm
1 stop8h 59m
$712
Showing 1-10 of 60 resultsSorted by cheapest first
Best time to book a flight from Oakland to Ontario
Have a flexible travel schedule? Discover the best time to fly to Ontario from Oakland with our price prediction graph.
OAK-YYZ
OAK-YTZ
OAK-YUL
OAK-YOW
OAK-YHM
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 Oakland to Ontario
OAK-CAON
OAK-YYZ
OAK-YTZ
OAK-YUL
OAK-YOW
No data available for this route at this time. Please check back soon.
Related info for your journey
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