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Cheap flights from Ontario to San Francisco from C$ 220

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Ontario to San Francisco departing on 28/2. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
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Find the cheapest flights from Ontario to San Francisco

Cheap round-trip flights

Enter your travel dates to find the best prices.
Alaska Airlines Logo
4:45 p.m. - 10:49 p.m.
YYZ
-
OAK
9h 04m1 stop
Alaska Airlines Logo
6:15 a.m. - 3:35 p.m.
OAK
-
YYZ
30h 20m1 stop
C$ 366Alaska Airlines
Mon, 2 Mar - Tue, 3 Mar
Alaska Airlines Logo
4:45 p.m. - 10:49 p.m.
YYZ
-
OAK
9h 04m1 stop
Alaska Airlines Logo
6:15 a.m. - 3:35 p.m.
OAK
-
YYZ
30h 20m1 stop
C$ 380Alaska Airlines
Fri, 20 Feb - Fri, 27 Feb
Alaska Airlines Logo
4:45 p.m. - 10:49 p.m.
YYZ
-
OAK
9h 04m1 stop
Alaska Airlines Logo
5:31 p.m. - 3:35 p.m.
OAK
-
YYZ
19h 04m1 stop
C$ 387Alaska Airlines
Mon, 2 Mar - Tue, 3 Mar
Alaska Airlines Logo
4:55 p.m. - 10:32 p.m.
YYZ
-
OAK
8h 37m1 stop
Alaska Airlines Logo
7:00 a.m. - 3:45 p.m.
OAK
-
YYZ
29h 45m1 stop
C$ 412Alaska Airlines
Thu, 23 Apr - Mon, 27 Apr
Alaska Airlines Logo
4:45 p.m. - 10:49 p.m.
YYZ
-
OAK
9h 04m1 stop
Alaska Airlines Logo
10:04 a.m. - 3:35 p.m.
OAK
-
YYZ
26h 31m2 stops
C$ 423Alaska Airlines
Mon, 2 Mar - Tue, 3 Mar
Alaska Airlines Logo
4:45 p.m. - 10:49 p.m.
YYZ
-
OAK
9h 04m1 stop
Alaska Airlines Logo
10:04 a.m. - 3:35 p.m.
OAK
-
YYZ
26h 31m2 stops
C$ 434Alaska Airlines
Mon, 2 Mar - Tue, 3 Mar
Alaska Airlines Logo
4:45 p.m. - 9:24 a.m.
YYZ
-
OAK
19h 39m2 stops
Alaska Airlines Logo
6:15 a.m. - 3:35 p.m.
OAK
-
YYZ
30h 20m1 stop
C$ 445Alaska Airlines
Mon, 9 Mar - Thu, 12 Mar
Delta Logo
12:50 p.m. - 9:38 p.m.
YUL
-
OAK
35h 48m2 stops
Delta Logo
4:54 p.m. - 11:50 p.m.
OAK
-
YUL
27h 56m2 stops
C$ 706Delta
Fri, 23 Jan - Tue, 27 Jan
Delta Logo
1:02 p.m. - 11:52 a.m.
YUL
-
OAK
25h 50m2 stops
Delta Logo
5:55 a.m. - 11:45 a.m.
OAK
-
YUL
26h 50m2 stops
C$ 782Delta
Fri, 23 Jan - Tue, 27 Jan
Multiple Airlines Logo
7:00 p.m. - 8:40 p.m.
YKF
-
OAK
28h 40m2 stops
Multiple Airlines Logo
8:10 a.m. - 5:29 a.m.
OAK
-
YKF
18h 19m2 stops
C$ 941Multiple Airlines
Sat, 7 Feb - Wed, 11 Feb

Delta flights from Region of Ontario to Oakland, California

Our best Delta deals on Region of Ontario to Oakland, California flight tickets
Delta
17 Feb
YYZ5:15 p.m.Toronto Pearson Intl
9h 36m
2 stops
OAK11:51 p.m.Oakland
24 Mar
OAK5:55 a.m.Oakland
13h 44m
2 stops
YYZ10:39 p.m.Toronto Pearson Intl
C$ 621
Delta
23 Jan
YUL12:50 p.m.Montreal Pierre Elliott Trudeau Intl
35h 48m
2 stops
OAK9:38 p.m.Oakland
27 Jan
OAK4:54 p.m.Oakland
27h 56m
2 stops
YUL11:50 p.m.Montreal Pierre Elliott Trudeau Intl
C$ 706
Delta
23 Jan
YUL1:02 p.m.Montreal Pierre Elliott Trudeau Intl
25h 50m
2 stops
OAK11:52 a.m.Oakland
27 Jan
OAK5:55 a.m.Oakland
26h 50m
2 stops
YUL11:45 a.m.Montreal Pierre Elliott Trudeau Intl
C$ 782

Alaska Airlines flights from Region of Ontario to Oakland, California

Our best Alaska Airlines deals on Region of Ontario to Oakland, California flight tickets
Alaska Airlines
2 Mar
YYZ4:45 p.m.Toronto Pearson Intl
9h 04m
1 stop
OAK10:49 p.m.Oakland
3 Mar
OAK6:15 a.m.Oakland
30h 20m
1 stop
YYZ3:35 p.m.Toronto Pearson Intl
C$ 366
Alaska Airlines
20 Feb
YYZ4:45 p.m.Toronto Pearson Intl
9h 04m
1 stop
OAK10:49 p.m.Oakland
27 Feb
OAK6:15 a.m.Oakland
30h 20m
1 stop
YYZ3:35 p.m.Toronto Pearson Intl
C$ 380
Alaska Airlines
2 Mar
YYZ4:45 p.m.Toronto Pearson Intl
9h 04m
1 stop
OAK10:49 p.m.Oakland
3 Mar
OAK5:31 p.m.Oakland
19h 04m
1 stop
YYZ3:35 p.m.Toronto Pearson Intl
C$ 387

momondo Fare Finder

 
Customize your flight search to find flights from Region of Ontario to Oakland, California 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, momondo users made 96,600 searches. Data last updated 8 January 2026.
Use the filters below to find and compare flights from Ontario to Oakland, California that are best for you.

Fly from

Fly to

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

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

1 stop30h 20m

C$ 366

TorontoOakland

YYZ - OAK

YYZOAK

Toronto Pearson Intl

Fri 20/2

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

1 stop9h 04m

Oakland

Fri 27/2

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

1 stop30h 20m

C$ 380

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$ 387

TorontoOakland

YYZ - OAK

YYZOAK

Toronto Pearson Intl

Thu 23/4

4:55 p.m.-10:32 p.m.

1 stop8h 37m

Oakland

Mon 27/4

7:00 a.m.-3:45 p.m.

1 stop29h 45m

C$ 412

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

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

2 stops26h 31m

C$ 423

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

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

2 stops26h 31m

C$ 434

TorontoOakland

YYZ - OAK

YYZOAK

Toronto Pearson Intl

Mon 9/3

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

2 stops19h 39m

Oakland

Thu 12/3

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

1 stop30h 20m

C$ 445

MontrealOakland

YUL - OAK

YULOAK

Montreal Pierre Elliott Trudeau Intl

Fri 23/1

12:50 p.m.-9:38 p.m.

2 stops35h 48m

Oakland

Tue 27/1

4:54 p.m.-11:50 p.m.

2 stops27h 56m

C$ 706

MontrealOakland

YUL - OAK

YULOAK

Montreal Pierre Elliott Trudeau Intl

Fri 23/1

1:02 p.m.-11:52 a.m.

2 stops25h 50m

Oakland

Tue 27/1

5:55 a.m.-11:45 a.m.

2 stops26h 50m

C$ 782

TorontoOakland

YKF - OAK

YKFOAK

Toronto Region of Waterloo Intl

Sat 7/2

7:00 p.m.-8:40 p.m.

2 stops28h 40m

Oakland

Wed 11/2

8:10 a.m.-5:29 a.m.

2 stops18h 19m

C$ 941

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
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See travel insights to San Francisco from

How to get the cheapest flight ticket from Region of Ontario to Oakland, California

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

What is the cheapest airline that flies from Ontario to Oakland?

Alaska Airlines and Delta are the most popular carriers operating from Ontario to Oakland

Which airlines fly to Oakland, California?

Air Canada, Porter Airlines and WestJet are the top three most popular airlines that fly to Oakland, California from Region of Ontario according to our data. Air Canada is the first choice among our users, with 40% of people opting to fly with this airline when travelling to Oakland, California. Keep in mind that there are 8 different airlines that fly to Oakland, California on a routine basis, so you have a few additional options to choose from.

Cheap Region of Ontario to Oakland, California flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Region of Ontario to Oakland, California

Fastest flight time

8h 37m

Direct flights

None
The fastest flight from Region of Ontario to Oakland, California takes 8h 37m
There are no direct flights from Region of Ontario to Oakland, California. There are no popular flight routes from Region of Ontario to Oakland, California.
Search flight deals

  • When did momondo last update prices for flights from Ontario to Oakland Airport?

    Prices for flights from Ontario to Oakland Airport refresh daily.

  • How old do you have to be to fly from Ontario to Oakland Airport?

    The minimum age for a child to fly alone is five, but airlines offering an unaccompanied minor (UNMR) service may have their age restrictions, such as regulations concerning flight duration, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Ontario to Oakland Airport.

  • What documentation or ID do you need to fly to Oakland Airport?

    The travel and health documents you'll need for your trip to Oakland Airport may differ based on your itinerary and personal situation. Typically, you should have several documents on hand, such as a national ID card or driver's license and a passport that is valid for six months after your intended arrival at Oakland Airport. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.

Why use momondo?

Why should I use momondo to find a flight deal from Ontario to Oakland?

To find the flight that best suits your needs, momondo gathers a range of flights from a large pool of different airlines and agents; you can then use our insights and filters to find and book the right flight to Oakland from Ontario.

Can I find flights from Ontario to Oakland with flexible booking policies on momondo?

momondo does allow users to show only those flights to Oakland from Ontario which offer a flexible booking policy as well as other useful filters and features.

How can momondo help me find flights from Ontario to Oakland?

momondo provides multiple filters to help you find the best flight to Oakland from Ontario. Filter by price, airline, airports, cabin, aircraft, payment method, number of stops and more.

I’m not ready to book a flight from Ontario to Oakland right now. Can momondo alert me if prices change?

Yes. momondo can track prices for Ontario to Oakland flights and alert you when they change. Perform a search to set up the price alert. All that is required is a valid email address.

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