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Cheap flights from Ontario to San Francisco from C$ 271

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 28/5. 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
4:55 p.m. - 11:43 p.m.
YYZ
-
OAK
9h 48m
1 stop
Alaska Airlines Logo
6:40 p.m. - 3:45 p.m.
OAK
-
YYZ
18h 05m
1 stop
C$ 457Alaska Airlines
Tue, 14 Apr - Tue, 21 Apr
Alaska Airlines Logo
4:55 p.m. - 11:59 p.m.
YYZ
-
OAK
10h 04m
1 stop
Alaska Airlines Logo
7:43 p.m. - 3:45 p.m.
OAK
-
YYZ
17h 02m
1 stop
C$ 479Alaska Airlines
Thu, 28 May - Mon, 1 Jun
Alaska Airlines Logo
4:55 p.m. - 11:43 p.m.
YYZ
-
OAK
9h 48m
1 stop
Alaska Airlines Logo
9:43 a.m. - 3:45 p.m.
OAK
-
YYZ
27h 02m
2 stops
C$ 492Alaska Airlines
Tue, 14 Apr - Tue, 21 Apr
Alaska Airlines Logo
4:55 p.m. - 11:43 p.m.
YYZ
-
OAK
9h 48m
1 stop
Alaska Airlines Logo
9:43 a.m. - 3:45 p.m.
OAK
-
YYZ
27h 02m
2 stops
C$ 499Alaska Airlines
Tue, 14 Apr - Tue, 21 Apr
Delta Logo
5:10 p.m. - 11:46 p.m.
YYZ
-
OAK
9h 36m
2 stops
Delta Logo
4:49 p.m. - 11:06 a.m.
OAK
-
YYZ
15h 17m
2 stops
C$ 520Delta
Tue, 17 Mar - Tue, 31 Mar
Alaska Airlines Logo
4:55 p.m. - 11:43 p.m.
YYZ
-
OAK
9h 48m
1 stop
Alaska Airlines Logo
2:09 p.m. - 3:45 p.m.
OAK
-
YYZ
22h 36m
1 stop
C$ 526Alaska Airlines
Wed, 15 Apr - Wed, 22 Apr
Delta Logo
6:00 a.m. - 11:54 p.m.
YUL
-
OAK
20h 54m
2 stops
Delta Logo
5:55 p.m. - 11:26 p.m.
OAK
-
YUL
26h 31m
2 stops
C$ 546Delta
Wed, 15 Apr - Sat, 18 Apr
Delta Logo
6:00 a.m. - 11:54 p.m.
YUL
-
OAK
20h 54m
2 stops
Delta Logo
5:55 p.m. - 11:51 p.m.
OAK
-
YUL
26h 56m
2 stops
C$ 547Delta
Wed, 15 Apr - Sat, 18 Apr
Delta Logo
6:00 a.m. - 11:54 p.m.
YUL
-
OAK
20h 54m
2 stops
Delta Logo
12:34 p.m. - 11:51 p.m.
OAK
-
YUL
32h 17m
2 stops
C$ 548Delta
Wed, 15 Apr - Sat, 18 Apr
Multiple Airlines Logo
5:50 a.m. - 11:43 p.m.
YHM
-
OAK
20h 53m
2 stops
Multiple Airlines Logo
6:40 p.m. - 5:16 p.m.
OAK
-
YHM
43h 36m
2 stops
C$ 741Multiple Airlines
Tue, 14 Apr - Tue, 21 Apr

Delta flights from Region of Ontario to Oakland, California

Our best Delta deals on Region of Ontario to Oakland, California flight tickets
Delta
17 Mar
YYZ5:10 p.m.Toronto Pearson Intl
9h 36m
2 stops
OAK11:46 p.m.Oakland
31 Mar
OAK4:49 p.m.Oakland
15h 17m
2 stops
YYZ11:06 a.m.Toronto Pearson Intl
C$ 520
Delta
15 Apr
YUL6:00 a.m.Montreal Pierre Elliott Trudeau Intl
20h 54m
2 stops
OAK11:54 p.m.Oakland
18 Apr
OAK5:55 p.m.Oakland
26h 31m
2 stops
YUL11:26 p.m.Montreal Pierre Elliott Trudeau Intl
C$ 546
Delta
15 Apr
YUL6:00 a.m.Montreal Pierre Elliott Trudeau Intl
20h 54m
2 stops
OAK11:54 p.m.Oakland
18 Apr
OAK5:55 p.m.Oakland
26h 56m
2 stops
YUL11:51 p.m.Montreal Pierre Elliott Trudeau Intl
C$ 547

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
14 Apr
YYZ4:55 p.m.Toronto Pearson Intl
9h 48m
1 stop
OAK11:43 p.m.Oakland
21 Apr
OAK6:40 p.m.Oakland
18h 05m
1 stop
YYZ3:45 p.m.Toronto Pearson Intl
C$ 457
Alaska Airlines
28 May
YYZ4:55 p.m.Toronto Pearson Intl
10h 04m
1 stop
OAK11:59 p.m.Oakland
1 Jun
OAK7:43 p.m.Oakland
17h 02m
1 stop
YYZ3:45 p.m.Toronto Pearson Intl
C$ 479
Alaska Airlines
14 Apr
YYZ4:55 p.m.Toronto Pearson Intl
9h 48m
1 stop
OAK11:43 p.m.Oakland
21 Apr
OAK9:43 a.m.Oakland
27h 02m
2 stops
YYZ3:45 p.m.Toronto Pearson Intl
C$ 492

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 1 March 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

Tue 14/4

4:55 p.m.-11:43 p.m.

1 stop9h 48m

Oakland

Tue 21/4

6:40 p.m.-3:45 p.m.

1 stop18h 05m

C$ 457

TorontoOakland

YYZ - OAK

YYZOAK

Toronto Pearson Intl

Thu 28/5

4:55 p.m.-11:59 p.m.

1 stop10h 04m

Oakland

Mon 1/6

7:43 p.m.-3:45 p.m.

1 stop17h 02m

C$ 479

TorontoOakland

YYZ - OAK

YYZOAK

Toronto Pearson Intl

Tue 14/4

4:55 p.m.-11:43 p.m.

1 stop9h 48m

Oakland

Tue 21/4

9:43 a.m.-3:45 p.m.

2 stops27h 02m

C$ 492

TorontoOakland

YYZ - OAK

YYZOAK

Toronto Pearson Intl

Tue 14/4

4:55 p.m.-11:43 p.m.

1 stop9h 48m

Oakland

Tue 21/4

9:43 a.m.-3:45 p.m.

2 stops27h 02m

C$ 499

TorontoOakland

YYZ - OAK

YYZOAK

Toronto Pearson Intl

Tue 17/3

5:10 p.m.-11:46 p.m.

2 stops9h 36m

Oakland

Tue 31/3

4:49 p.m.-11:06 a.m.

2 stops15h 17m

C$ 520

TorontoOakland

YYZ - OAK

YYZOAK

Toronto Pearson Intl

Wed 15/4

4:55 p.m.-11:43 p.m.

1 stop9h 48m

Oakland

Wed 22/4

2:09 p.m.-3:45 p.m.

1 stop22h 36m

C$ 526

MontrealOakland

YUL - OAK

YULOAK

Montreal Pierre Elliott Trudeau Intl

Wed 15/4

6:00 a.m.-11:54 p.m.

2 stops20h 54m

Oakland

Sat 18/4

5:55 p.m.-11:26 p.m.

2 stops26h 31m

C$ 546

MontrealOakland

YUL - OAK

YULOAK

Montreal Pierre Elliott Trudeau Intl

Wed 15/4

6:00 a.m.-11:54 p.m.

2 stops20h 54m

Oakland

Sat 18/4

5:55 p.m.-11:51 p.m.

2 stops26h 56m

C$ 547

MontrealOakland

YUL - OAK

YULOAK

Montreal Pierre Elliott Trudeau Intl

Wed 15/4

6:00 a.m.-11:54 p.m.

2 stops20h 54m

Oakland

Sat 18/4

12:34 p.m.-11:51 p.m.

2 stops32h 17m

C$ 548

HamiltonOakland

YHM - OAK

YHMOAK

Hamilton

Tue 14/4

5:50 a.m.-11:43 p.m.

2 stops20h 53m

Oakland

Tue 21/4

6:40 p.m.-5:16 p.m.

2 stops43h 36m

C$ 741

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?

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

Which airlines fly to Oakland, California?

Porter Airlines, Air Canada and United Airlines are the top three most popular airlines that fly to Oakland, California from Region of Ontario according to our data. Porter Airlines is the first choice among our users, with 39% of people opting to fly with this airline when travelling to Oakland, California. Keep in mind that there are 9 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

7h 49m

Direct flights

None
The fastest flight from Region of Ontario to Oakland, California takes 7h 49m
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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