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Cheap flights from Ontario to San Francisco from C$ 324

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 29/5. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
1 adult

Find the cheapest flights from Ontario to San Francisco

Cheap round-trip flights

Enter your travel dates to find the best prices.
Delta Logo
12:09 p.m. - 11:57 p.m.
YYZ
-
OAK
14h 48m
2 stops
Delta Logo
6:00 a.m. - 11:14 p.m.
OAK
-
YYZ
14h 14m
2 stops
C$ 568Delta
Thu, 4 Jun - Tue, 9 Jun
Delta Logo
2:15 p.m. - 11:56 p.m.
YYZ
-
OAK
12h 41m
2 stops
Delta Logo
5:55 a.m. - 4:39 p.m.
OAK
-
YYZ
7h 44m
1 stop
C$ 601Delta
Tue, 13 Oct - Sat, 24 Oct
Delta Logo
7:45 a.m. - 11:57 p.m.
YYZ
-
OAK
19h 12m
2 stops
Delta Logo
5:05 p.m. - 12:19 p.m.
OAK
-
YYZ
16h 14m
2 stops
C$ 606Delta
Tue, 12 May - Tue, 26 May
Delta Logo
2:15 p.m. - 11:54 p.m.
YYZ
-
OAK
12h 39m
2 stops
Delta Logo
6:00 a.m. - 11:14 p.m.
OAK
-
YYZ
14h 14m
2 stops
C$ 607Delta
Wed, 6 May - Sun, 10 May
Delta Logo
2:20 p.m. - 10:34 p.m.
YYZ
-
OAK
11h 14m
2 stops
Delta Logo
6:00 a.m. - 11:14 p.m.
OAK
-
YYZ
14h 14m
2 stops
C$ 614Delta
Sat, 6 Jun - Tue, 9 Jun
Delta Logo
4:11 p.m. - 11:54 p.m.
YYZ
-
OAK
10h 43m
2 stops
Delta Logo
5:05 p.m. - 10:19 a.m.
OAK
-
YYZ
14h 14m
2 stops
C$ 623Delta
Tue, 5 May - Mon, 11 May
Delta Logo
12:09 p.m. - 11:57 p.m.
YYZ
-
OAK
14h 48m
2 stops
Delta Logo
5:05 p.m. - 10:19 a.m.
OAK
-
YYZ
14h 14m
2 stops
C$ 624Delta
Thu, 7 May - Mon, 11 May
Delta Logo
7:45 a.m. - 11:54 p.m.
YYZ
-
OAK
19h 09m
2 stops
Delta Logo
5:03 p.m. - 11:19 a.m.
OAK
-
YYZ
15h 16m
2 stops
C$ 628Delta
Tue, 9 Jun - Fri, 12 Jun
Multiple Airlines Logo
6:10 p.m. - 6:55 p.m.
YHM
-
OAK
27h 45m
2 stops
Multiple Airlines Logo
7:49 p.m. - 5:15 p.m.
OAK
-
YHM
18h 26m
2 stops
C$ 1,017Multiple Airlines
Wed, 19 Aug - Sun, 23 Aug
Multiple Airlines Logo
8:40 p.m. - 6:55 p.m.
YKF
-
OAK
25h 15m
2 stops
Multiple Airlines Logo
7:49 p.m. - 7:50 p.m.
OAK
-
YKF
21h 01m
2 stops
C$ 1,049Multiple Airlines
Wed, 19 Aug - Sun, 23 Aug

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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
7 May
YYZ4:55 p.m.Toronto Pearson Intl
8h 37m
1 stop
OAK10:32 p.m.Oakland
11 May
OAK6:20 a.m.Oakland
30h 25m
1 stop
YYZ3:45 p.m.Toronto Pearson Intl
C$ 691
Alaska Airlines
6 May
YYZ4:55 p.m.Toronto Pearson Intl
8h 37m
1 stop
OAK10:32 p.m.Oakland
10 May
OAK6:20 a.m.Oakland
30h 25m
1 stop
YYZ3:45 p.m.Toronto Pearson Intl
C$ 696
Alaska Airlines
5 May
YYZ4:55 p.m.Toronto Pearson Intl
18h 58m
2 stops
OAK8:53 a.m.Oakland
11 May
OAK6:20 a.m.Oakland
30h 25m
1 stop
YYZ3:45 p.m.Toronto Pearson Intl
C$ 703

Delta flights from Region of Ontario to Oakland, California

Our best Delta deals on Region of Ontario to Oakland, California flight tickets
Delta
4 Jun
YYZ12:09 p.m.Toronto Pearson Intl
14h 48m
2 stops
OAK11:57 p.m.Oakland
9 Jun
OAK6:00 a.m.Oakland
14h 14m
2 stops
YYZ11:14 p.m.Toronto Pearson Intl
C$ 568
Delta
13 Oct
YYZ2:15 p.m.Toronto Pearson Intl
12h 41m
2 stops
OAK11:56 p.m.Oakland
24 Oct
OAK5:55 a.m.Oakland
7h 44m
1 stop
YYZ4:39 p.m.Toronto Pearson Intl
C$ 601
Delta
12 May
YYZ7:45 a.m.Toronto Pearson Intl
19h 12m
2 stops
OAK11:57 p.m.Oakland
26 May
OAK5:05 p.m.Oakland
16h 14m
2 stops
YYZ12:19 p.m.Toronto Pearson Intl
C$ 606

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 18 April 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

Cheapest round-trip

TorontoOakland

YYZ - OAK

YYZOAK

Toronto Pearson Intl

Thu 4/6

12:09 p.m.-11:57 p.m.

2 stops14h 48m

Oakland

Tue 9/6

6:00 a.m.-11:14 p.m.

2 stops14h 14m

C$ 568
Quickest round-trip

TorontoOakland

YYZ - OAK

YYZOAK

Toronto Pearson Intl

Tue 13/10

2:15 p.m.-11:56 p.m.

2 stops12h 41m

Oakland

Sat 24/10

5:55 a.m.-4:39 p.m.

1 stop7h 44m

C$ 601

TorontoOakland

YYZ - OAK

YYZOAK

Toronto Pearson Intl

Tue 12/5

7:45 a.m.-11:57 p.m.

2 stops19h 12m

Oakland

Tue 26/5

5:05 p.m.-12:19 p.m.

2 stops16h 14m

C$ 606

TorontoOakland

YYZ - OAK

YYZOAK

Toronto Pearson Intl

Wed 6/5

2:15 p.m.-11:54 p.m.

2 stops12h 39m

Oakland

Sun 10/5

6:00 a.m.-11:14 p.m.

2 stops14h 14m

C$ 607

TorontoOakland

YYZ - OAK

YYZOAK

Toronto Pearson Intl

Sat 6/6

2:20 p.m.-10:34 p.m.

2 stops11h 14m

Oakland

Tue 9/6

6:00 a.m.-11:14 p.m.

2 stops14h 14m

C$ 614

TorontoOakland

YYZ - OAK

YYZOAK

Toronto Pearson Intl

Tue 5/5

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

2 stops10h 43m

Oakland

Mon 11/5

5:05 p.m.-10:19 a.m.

2 stops14h 14m

C$ 623

TorontoOakland

YYZ - OAK

YYZOAK

Toronto Pearson Intl

Thu 7/5

12:09 p.m.-11:57 p.m.

2 stops14h 48m

Oakland

Mon 11/5

5:05 p.m.-10:19 a.m.

2 stops14h 14m

C$ 624

TorontoOakland

YYZ - OAK

YYZOAK

Toronto Pearson Intl

Tue 9/6

7:45 a.m.-11:54 p.m.

2 stops19h 09m

Oakland

Fri 12/6

5:03 p.m.-11:19 a.m.

2 stops15h 16m

C$ 628

HamiltonOakland

YHM - OAK

YHMOAK

Hamilton

Wed 19/8

6:10 p.m.-6:55 p.m.

2 stops27h 45m

Oakland

Sun 23/8

7:49 p.m.-5:15 p.m.

2 stops18h 26m

C$ 1,017

TorontoOakland

YKF - OAK

YKFOAK

Toronto Region of Waterloo Intl

Wed 19/8

8:40 p.m.-6:55 p.m.

2 stops25h 15m

Oakland

Sun 23/8

7:49 p.m.-7:50 p.m.

2 stops21h 01m

C$ 1,049

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 is the most popular carrier 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 41% 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

6h 54m

Direct flights

None
The fastest flight from Region of Ontario to Oakland, California takes 6h 54m
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

Frequently asked questions about flying from Ontario to Oakland, California

  • 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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