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Cheap flights from Ontario to Oakland, CA from C$ 281

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 12/3. Fares are subject to change and may not be available on all flights or dates of travel.
YYZ — OAK
28 Feb — 7 Mar1
1 adult
1 adult, Economy, 0 bags

Cheap 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 29 January 2026.

Mon 2/34:45 p.m.
YYZ
-
OAK
1 stop9h 04m
Alaska Airlines
Tue 3/36:15 a.m.
OAK
-
YYZ
1 stop30h 20m
Alaska Airlines
Deal found 27/1C$ 471
Mon 23/24:45 p.m.
YYZ
-
OAK
1 stop9h 07m
Alaska Airlines
Fri 27/26:15 a.m.
OAK
-
YYZ
1 stop30h 20m
Alaska Airlines
Deal found 28/1C$ 500
Fri 20/24:45 p.m.
YYZ
-
OAK
1 stop9h 04m
Alaska Airlines
Mon 2/35:31 p.m.
OAK
-
YYZ
1 stop19h 04m
Alaska Airlines
Deal found 27/1C$ 509
Fri 20/24:45 p.m.
YYZ
-
OAK
1 stop9h 04m
Alaska Airlines
Sat 28/25:31 p.m.
OAK
-
YYZ
1 stop19h 04m
Alaska Airlines
Deal found 28/1C$ 521
Fri 5/64:55 p.m.
YYZ
-
OAK
1 stop9h 59m
Alaska Airlines
Thu 3/125:00 p.m.
OAK
-
YYZ
1 stop19h 39m
Alaska Airlines
Deal found 27/1C$ 562
Wed 15/47:00 a.m.
YUL
-
OAK
2 stops19h 54m
Delta
Sat 18/412:34 p.m.
OAK
-
YUL
2 stops20h 04m
Delta
Deal found 26/1C$ 614
Fri 20/312:50 p.m.
YUL
-
OAK
2 stops13h 56m
Delta
Tue 24/35:55 a.m.
OAK
-
YUL
2 stops14h 45m
Delta
Deal found 27/1C$ 815
Thu 16/76:00 a.m.
YUL
-
OAK
2 stops20h 49m
Delta
Thu 30/71:15 p.m.
OAK
-
YUL
2 stops31h 41m
Delta
Deal found 28/1C$ 838
Fri 17/77:00 a.m.
YUL
-
OAK
2 stops19h 49m
Delta
Thu 30/71:15 p.m.
OAK
-
YUL
2 stops31h 41m
Delta
Deal found 28/1C$ 873
Thu 16/77:00 a.m.
YUL
-
OAK
2 stops19h 49m
Delta
Mon 3/81:15 p.m.
OAK
-
YUL
2 stops31h 41m
Delta
Deal found 28/1C$ 892
Thu 16/76:00 a.m.
YUL
-
OAK
2 stops20h 49m
Delta
Sat 1/81:15 p.m.
OAK
-
YUL
2 stops20h 01m
Delta
Deal found 28/1C$ 914
Fri 17/77:00 a.m.
YUL
-
OAK
2 stops19h 49m
Delta
Mon 3/81:15 p.m.
OAK
-
YUL
2 stops31h 41m
Delta
Deal found 28/1C$ 926

Find flight deals from Ontario to Oakland

Keep the following information in mind while searching for Ontario to Oakland flight deals. Data was last updated 29 January 2026.

Round-trip from

C$ 471

One-way from

C$ 281

Popular in

December

Cheapest in

March

Average price

C$ 506
Alaska Airlines
  • Alaska Airlines
  • 2/3-3/3
  • 2 total stops
  • 39h 24m total
  • Ontario to Oakland
Search Deals
Alaska Airlines
  • Alaska Airlines
  • 12/3
  • 1 total stop
  • 10h 13m total
  • Ontario to Oakland
Search Deals
Highest demand for flights based on searches. 6% potential increase in price (C$ 48 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease (C$ 17 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in January 2026
Search Deals

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 29 January 2026.
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 2/3

4:45 p.m.-10:49 p.m.

1 stop9h 04m

Oakland

Tue 3/3

5:31 p.m.-3:35 p.m.

1 stop19h 04m

C$ 475

TorontoOakland

YYZ - OAK

YYZOAK

Toronto Pearson Intl

Fri 20/2

4:45 p.m.-10:49 p.m.

1 stop9h 04m

Oakland

Sat 28/2

5:31 p.m.-3:35 p.m.

1 stop19h 04m

C$ 521

TorontoOakland

YYZ - OAK

YYZOAK

Toronto Pearson Intl

Mon 23/2

4:45 p.m.-9:24 a.m.

2 stops19h 39m

Oakland

Fri 27/2

6:15 a.m.-3:35 p.m.

1 stop30h 20m

C$ 553

TorontoOakland

YYZ - OAK

YYZOAK

Toronto Pearson Intl

Fri 5/6

4:55 p.m.-8:50 a.m.

2 stops18h 55m

Oakland

Thu 3/12

8:00 a.m.-3:39 p.m.

2 stops28h 39m

C$ 582

TorontoOakland

YYZ - OAK

YYZOAK

Toronto Pearson Intl

Fri 20/2

4:45 p.m.-10:49 p.m.

1 stop9h 04m

Oakland

Mon 2/3

10:04 a.m.-3:35 p.m.

2 stops26h 31m

C$ 599

MontrealOakland

YUL - OAK

YULOAK

Montreal Pierre Elliott Trudeau Intl

Wed 15/4

7:00 a.m.-11:54 p.m.

2 stops19h 54m

Oakland

Sat 18/4

12:34 p.m.-11:38 a.m.

2 stops20h 04m

C$ 614

MontrealOakland

YUL - OAK

YULOAK

Montreal Pierre Elliott Trudeau Intl

Tue 24/2

2:40 p.m.-11:55 a.m.

2 stops24h 15m

Oakland

Tue 10/3

12:35 p.m.-11:40 p.m.

2 stops32h 05m

C$ 614

TorontoOakland

YYZ - OAK

YYZOAK

Toronto Pearson Intl

Mon 16/3

4:45 p.m.-4:37 p.m.

1 stop26h 52m

Oakland

Sun 22/3

7:00 a.m.-3:35 p.m.

1 stop29h 35m

C$ 687

TorontoOakland

YYZ - OAK

YYZOAK

Toronto Pearson Intl

Tue 17/2

4:45 p.m.-9:24 a.m.

2 stops19h 39m

Oakland

Sat 21/2

6:15 a.m.-3:35 p.m.

1 stop30h 20m

C$ 687

MontrealOakland

YUL - OAK

YULOAK

Montreal Pierre Elliott Trudeau Intl

Fri 20/3

12:50 p.m.-11:46 p.m.

2 stops13h 56m

Oakland

Tue 24/3

5:55 a.m.-11:40 p.m.

2 stops14h 45m

C$ 815

Flights are sorted by cheapest round-trip flights first.

Deals found on 28/1

Showing 1-10 of 43 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$ 195). Flying from Region of Ontario to Oakland, California in December is currently the most expensive (average of C$ 343). 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?

    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 9h 04m. 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 Hamilton - 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$ 195). Flying from Region of Ontario to Oakland, California in December is currently the most expensive (average of C$ 343). 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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