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Cheap flights from Ontario to Oakland, CA from C$ 261

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 3/12. Fares are subject to change and may not be available on all flights or dates of travel.
YYZ — OAK
29 Nov — 6 Dec1
1 adult
1 adult, Economy, 0 bags

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 30 October 2025.

Round-trip from

C$ 535

One-way from

C$ 261

Popular in

December

Cheapest in

April

Average price

C$ 554
Delta
  • Delta
  • 27/11-4/12
  • 4 total stops
  • 29h 15m total
  • Ontario to Oakland
Search Deals
Alaska Airlines
  • Alaska Airlines
  • 3/12
  • 1 total stop
  • 10h 14m total
  • Ontario to Oakland
Search Deals
Highest demand for flights based on searches. 5% potential increase in price (C$ 44 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease (C$ 19 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in October 2025
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Find flight deals from Ontario to Oakland

Enter your travel dates to find the best prices.

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 30 October 2025.

Thu 27/116:30 a.m.YYZ - OAK
2 stops14h 43mDelta
Thu 4/125:55 a.m.OAK - YYZ
2 stops14h 32mDelta
Deal found 29/10C$ 535
Sun 14/124:45 p.m.YYZ - OAK
1 stop10h 14mAlaska Airlines
Thu 25/126:10 a.m.OAK - YYZ
1 stop30h 25mAlaska Airlines
Deal found 29/10C$ 536
Tue 2/124:45 p.m.YYZ - OAK
1 stop34h 14mAlaska Airlines
Fri 5/122:31 p.m.OAK - YYZ
1 stop22h 04mAlaska Airlines
Deal found 29/10C$ 564
Tue 2/127:45 a.m.YYZ - OAK
2 stops19h 14mMultiple Airlines
Fri 5/122:31 p.m.OAK - YYZ
1 stop22h 04mMultiple Airlines
Deal found 29/10C$ 651
Tue 2/126:30 a.m.YYZ - OAK
2 stops20h 38mDelta
Fri 5/125:55 a.m.OAK - YYZ
2 stops14h 16mDelta
Deal found 29/10C$ 712
Wed 12/116:05 p.m.YYZ - OAK
2 stops8h 58mDelta
Wed 26/115:55 a.m.OAK - YYZ
2 stops14h 26mDelta
Deal found 29/10C$ 722
Thu 13/117:40 a.m.YYZ - OAK
2 stops19h 23mDelta
Wed 26/115:55 a.m.OAK - YYZ
2 stops14h 26mDelta
Deal found 29/10C$ 726
Sat 6/124:45 p.m.YYZ - OAK
1 stop20h 56mAlaska Airlines
Sun 14/122:31 p.m.OAK - YYZ
1 stop22h 04mAlaska Airlines
Deal found 29/10C$ 729
Wed 12/114:45 p.m.YYZ - OAK
1 stop10h 14mAlaska Airlines
Thu 20/116:30 a.m.OAK - YYZ
1 stop30h 05mAlaska Airlines
Deal found 29/10C$ 744
Wed 26/1112:50 p.m.YUL - OAK
2 stops14h 13mDelta
Wed 3/125:55 a.m.OAK - YUL
2 stops15h 04mDelta
Deal found 29/10C$ 803
Wed 26/118:00 a.m.YUL - OAK
3 stops30h 45mMultiple Airlines
Wed 3/127:33 p.m.OAK - YUL
3 stops32h 52mMultiple Airlines
Deal found 29/10C$ 1,139
Thu 27/116:20 a.m.YKF - OAK
2 stops29h 52mMultiple Airlines
Thu 4/122:31 p.m.OAK - YKF
2 stops35h 57mMultiple Airlines
Deal found 29/10C$ 1,346

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 629,999 searches. Data last updated 30 October 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 8/12

3:38 p.m.-12:08 a.m.

2 stops11h 30m

Oakland

Wed 17/12

5:55 a.m.-11:59 p.m.

2 stops15h 04m

C$ 533

TorontoOakland

YYZ - OAK

YYZOAK

Toronto Pearson Intl

Sun 14/12

4:45 p.m.-11:59 p.m.

1 stop10h 14m

Oakland

Thu 25/12

6:10 a.m.-3:35 p.m.

1 stop30h 25m

C$ 536

TorontoOakland

YYZ - OAK

YYZOAK

Toronto Pearson Intl

Wed 4/3

4:45 p.m.-11:38 p.m.

1 stop9h 53m

Oakland

Sun 8/3

6:35 p.m.-3:35 p.m.

1 stop18h 00m

C$ 542

TorontoOakland

YYZ - OAK

YYZOAK

Toronto Pearson Intl

Tue 2/12

4:45 p.m.-11:59 p.m.

1 stop34h 14m

Oakland

Fri 5/12

2:31 p.m.-3:35 p.m.

1 stop22h 04m

C$ 564

TorontoOakland

YYZ - OAK

YYZOAK

Toronto Pearson Intl

Wed 4/3

4:45 p.m.-5:43 p.m.

1 stop27h 58m

Oakland

Sat 7/3

6:45 p.m.-2:35 p.m.

2 stops16h 50m

C$ 616

TorontoOakland

YYZ - OAK

YYZOAK

Toronto Pearson Intl

Tue 10/3

4:45 p.m.-9:08 a.m.

1 stop19h 23m

Oakland

Wed 11/3

6:35 p.m.-3:35 p.m.

1 stop18h 00m

C$ 652

TorontoOakland

YYZ - OAK

YYZOAK

Toronto Pearson Intl

Tue 11/11

3:38 p.m.-12:03 a.m.

2 stops11h 25m

Oakland

Tue 18/11

4:51 p.m.-11:18 a.m.

2 stops15h 27m

C$ 654

TorontoOakland

YYZ - OAK

YYZOAK

Toronto Pearson Intl

Fri 14/11

3:38 p.m.-12:03 a.m.

2 stops11h 25m

Oakland

Tue 18/11

5:55 a.m.-11:21 p.m.

2 stops14h 26m

C$ 654

TorontoOakland

YYZ - OAK

YYZOAK

Toronto Pearson Intl

Sat 15/11

4:45 p.m.-11:59 p.m.

1 stop10h 14m

Oakland

Wed 19/11

6:30 a.m.-3:35 p.m.

1 stop30h 05m

C$ 665

TorontoOakland

YYZ - OAK

YYZOAK

Toronto Pearson Intl

Wed 12/11

4:45 p.m.-11:59 p.m.

1 stop10h 14m

Oakland

Wed 19/11

2:49 p.m.-3:35 p.m.

1 stop21h 46m

C$ 666

Flights are sorted by cheapest round-trip flights first.

Deals found on 29/10

Showing 1-10 of 42 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 C$ 201). Flying from Region of Ontario to Oakland, California in January is currently the most expensive (average of C$ 355). 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.

How much does it cost to fly round-trip from Region of Ontario to Oakland, California?

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?

    Oakland (OAK) is the airport you will fly into if you book a flight from Ontario to Oakland. It is only a 11.3 km journey from Oakland (OAK) to Oakland’s city centre.

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

    Departing from Region of Ontario to Oakland, California will take you 10h 14m. The distance from Region of Ontario to Oakland, California is about 3610 km. Both multi-stop and direct flights can be found to your destination and back.

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

    The most popular route from Region of Ontario to Oakland, California is Toronto Pearson Intl - Oakland. You may also consider Montreal Pierre Elliott Trudeau Intl - Oakland or Ottawa - Oakland.

  • 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 C$ 201). Flying from Region of Ontario to Oakland, California in January is currently the most expensive (average of C$ 355). 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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Alternative routes for Ontario to Oakland

See prices for flight routes from nearby airports that may be better suited for you.
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