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Oakland

$189+ Cheap flights from Ontario to Oakland, CA (OAK)

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 1/20. Fares are subject to change and may not be available on all flights or dates of travel.
YYZ — OAK
Dec 3 — Dec 101
Wed 12/3
Wed 12/10
1 adult, Economy
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Cheap flight deals from Ontario to Oakland

Keep the following information in mind while searching for Ontario to Oakland flight deals. Data was last updated November 3, 2025.

Most accurate provider

Mytrip
3 stars

Most trusted provider

Mytrip
3 stars

Round-trip from

$381
(Delta)

One-way from

$189
(Kiwi.com)

Popular in

December

Cheapest in

April

Average price

$365
Provider with most accurate pricing for Toronto (YTO)-San Francisco flight deals.
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Provider most trusted by Cheapflights users for Toronto (YTO)-San Francisco flights.
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From Ontario to Oakland
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One-way flight from Ontario to Oakland
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Highest demand for flights based on searches. 5% potential increase in price ($21 potential increase over avg. RT price).
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Cheapest flight prices on average. 2% potential price decrease ($10 potential savings vs. average RT price).
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Average for round-trip flights in November 2025
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Find flight deals from Ontario to Oakland

Cheapest flights from Ontario to Oakland
Explore the most affordable flight options available from Ontario to Oakland. Find the lowest fares from popular airlines and budget airlines, with prices last updated on November 3, 2025.

This Delta deal was found by Cheapflights users on 11/2. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 12/76:05 pmYYZ - OAK
2 stops9h 03mDelta
Mon 12/155:55 amOAK - YYZ
2 stops14h 16mDelta
Deal found 11/2$381
This Alaska Airlines deal was found by Cheapflights users on 11/2. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/94:45 pmYYZ - OAK
1 stop20h 56mAlaska Airlines
Wed 12/102:31 pmOAK - YYZ
1 stop22h 04mAlaska Airlines
Deal found 11/2$385
This Alaska Airlines deal was found by Cheapflights users on 11/2. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 12/84:45 pmYYZ - OAK
1 stop10h 14mAlaska Airlines
Sat 12/136:40 amOAK - YYZ
1 stop29h 55mAlaska Airlines
Deal found 11/2$389
This Delta deal was found by Cheapflights users on 11/1. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/117:40 amYYZ - OAK
2 stops19h 28mDelta
Mon 12/155:55 amOAK - YYZ
2 stops14h 32mDelta
Deal found 11/1$405
This Alaska Airlines deal was found by Cheapflights users on 11/1. Clicking the “Pick Dates” 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 12/34:45 pmYYZ - OAK
1 stop10h 14mAlaska Airlines
Tue 12/92:31 pmOAK - YYZ
1 stop22h 04mAlaska Airlines
Deal found 11/1$412
This Alaska Airlines deal was found by Cheapflights users on 11/1. Clicking the “Pick Dates” 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 11/224:45 pmYYZ - OAK
1 stop10h 14mAlaska Airlines
Thu 11/2712:20 pmOAK - YYZ
1 stop24h 15mAlaska Airlines
Deal found 11/1$416
This Alaska Airlines deal was found by Cheapflights users on 11/1. Clicking the “Pick Dates” 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 12/24:45 pmYYZ - OAK
1 stop10h 14mAlaska Airlines
Wed 12/1011:21 amOAK - YYZ
1 stop25h 14mAlaska Airlines
Deal found 11/1$417
This Alaska Airlines deal was found by Cheapflights users on 11/1. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 11/234:45 pmYYZ - OAK
1 stop10h 14mAlaska Airlines
Thu 11/2712:20 pmOAK - YYZ
1 stop24h 15mAlaska Airlines
Deal found 11/1$420
This Alaska Airlines deal was found by Cheapflights users on 11/1. Clicking the “Pick Dates” 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 12/34:45 pmYYZ - OAK
1 stop10h 14mAlaska Airlines
Fri 12/56:40 amOAK - YYZ
1 stop29h 55mAlaska Airlines
Deal found 11/1$422
This Alaska Airlines deal was found by Cheapflights users on 11/1. Clicking the “Pick Dates” 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 12/24:45 pmYYZ - OAK
1 stop10h 14mAlaska Airlines
Tue 12/99:45 amOAK - YYZ
2 stops26h 50mAlaska Airlines
Deal found 11/1$426
This Alaska Airlines deal was found by Cheapflights users on 11/1. Clicking the “Pick Dates” 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 12/24:45 pmYYZ - OAK
1 stop10h 14mAlaska Airlines
Mon 12/82:31 pmOAK - YYZ
1 stop22h 04mAlaska Airlines
Deal found 11/1$427
This Mytrip deal was found by Cheapflights users on 10/31. Clicking the “Pick Dates” 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 12/167:30 pmYUL - OAK
3 stops29h 00mMultiple Airlines
Tue 12/237:33 pmOAK - YUL
3 stops26h 10mMultiple Airlines
Deal found 10/31$927

Cheapflights Fare Finder

 
Customize your flight search to find flights from Ontario to Oakland 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 November 3, 2025.
Use the filters below to find and compare flights from Ontario to Oakland that are best for you.

Fly from

Ontario

Fly to

Oakland

Route

Depart

Return

Price

TorontoOakland

YYZ - OAK

YYZOAK

Toronto Pearson Intl

Mon 12/8

3:38 pm-12:08 am

2 stops11h 30m

Oakland

Wed 12/10

5:55 am-11:27 pm

2 stops14h 32m

$381

TorontoOakland

YYZ - OAK

YYZOAK

Toronto Pearson Intl

Sat 12/6

10:05 am-4:10 pm

2 stops9h 05m

Oakland

Tue 12/9

4:50 pm-11:07 am

2 stops15h 17m

$381

TorontoOakland

YYZ - OAK

YYZOAK

Toronto Pearson Intl

Sun 12/7

6:05 pm-12:08 am

2 stops9h 03m

Oakland

Tue 12/16

5:55 am-11:27 pm

2 stops14h 32m

$381

TorontoOakland

YYZ - OAK

YYZOAK

Toronto Pearson Intl

Thu 12/11

7:40 am-12:08 am

2 stops19h 28m

Oakland

Mon 12/15

5:55 am-11:27 pm

2 stops14h 32m

$381

TorontoOakland

YYZ - OAK

YYZOAK

Toronto Pearson Intl

Sun 12/14

3:38 pm-12:08 am

2 stops11h 30m

Oakland

Wed 12/17

5:55 am-11:27 pm

2 stops14h 32m

$381

TorontoOakland

YYZ - OAK

YYZOAK

Toronto Pearson Intl

Wed 12/10

12:23 pm-12:08 am

2 stops14h 45m

Oakland

Tue 12/16

5:55 am-11:27 pm

2 stops14h 32m

$381

TorontoOakland

YYZ - OAK

YYZOAK

Toronto Pearson Intl

Sat 12/13

12:23 pm-10:00 pm

2 stops12h 37m

Oakland

Tue 12/16

5:55 am-11:11 pm

2 stops14h 16m

$381

TorontoOakland

YYZ - OAK

YYZOAK

Toronto Pearson Intl

Fri 12/12

3:38 pm-12:08 am

2 stops11h 30m

Oakland

Wed 12/17

5:55 am-11:59 pm

2 stops15h 04m

$381

TorontoOakland

YYZ - OAK

YYZOAK

Toronto Pearson Intl

Wed 12/3

7:40 am-12:08 am

2 stops19h 28m

Oakland

Wed 12/10

5:55 am-11:27 pm

2 stops14h 32m

$381

TorontoOakland

YYZ - OAK

YYZOAK

Toronto Pearson Intl

Mon 12/8

7:40 am-12:08 am

2 stops19h 28m

Oakland

Mon 12/15

5:55 am-11:59 pm

2 stops15h 04m

$381

Flights are sorted by cheapest round-trip flights first.

Deals found on 11/2

Showing 1-10 of 32 results
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Best time to book a flight from Ontario to Oakland

Have a flexible travel schedule? Discover the best time to fly to Oakland from Ontario with our price prediction graph.
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 Oakland

What is the cheapest month to book a flight from Region of Ontario to Oakland, California?

Currently, April is the cheapest month in which you can book a flight from Region of Ontario to Oakland, California (average of $144). Flying from Region of Ontario to Oakland, California in January is currently the most expensive (average of $254). 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.

Related info for your journey

Find useful and relevant information for your journey from Ontario to Oakland. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • What airport do you fly into for flights to Oakland from Ontario?

    Most people fly into Oakland (OAK) if they book a flight to Oakland from Ontario. Oakland is conveniently located just 7.0 mi from Oakland’s city center.

  • How long is the flight from Region of Ontario to Oakland, California?

    Delta can get you from Region of Ontario to Oakland, California in just under 11h 30m. Your travel time can differ by up to . The distance from Region of Ontario to Oakland, California is about 2243 mi.

  • What are the most popular routes from Region of Ontario to Oakland, California?

    While some choose either Hamilton - Oakland or Toronto Region of Waterloo Intl - Oakland, Toronto Pearson Intl - Oakland is the most popular route from Region of Ontario to Oakland, California.

  • Can I find deals for flights from Ontario to Oakland that include hotel bookings?

    Yes. In addition to deals on Ontario to Oakland flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Ontario to Oakland?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Ontario to Oakland.

  • Can I find deals for business class flights from Ontario to Oakland?

    Yes. Cheapflights offers flight deals from Ontario to Oakland by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

  • What is the cheapest month to book a flight from Region of Ontario to Oakland, California?

    Currently, April is the cheapest month in which you can book a flight from Region of Ontario to Oakland, California (average of $144). Flying from Region of Ontario to Oakland, California in January is currently the most expensive (average of $254). 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.

See more FAQs

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