Latest deals
Insights
FAQs
Price Alerts

Cheap flights from Ontario to San Francisco from C$ 256

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 16/12. 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

Save money when you book flights with momondo

Big names, great deals

Big names, great deals

Search 100s of travel sites to compare prices.

Filter for what you want

Filter for what you want

Free Wi-Fi? Early arrival? Instantly customize your results

Trusted and free

Trusted and free

We’re completely free to use - no hidden charges or fees.

Price Alerts

Price Alerts

Not ready to book? to track prices.
Search flight deals

Find the cheapest flights from Ontario to San Francisco

Cheap round-trip flights

Alaska Airlines Logo
4:45 p.m. - 11:59 p.m.YYZ-OAK
10h 14m1 stop
Alaska Airlines Logo
6:40 a.m. - 3:35 p.m.OAK-YYZ
29h 55m1 stop
C$ 501Alaska Airlines
Find Deal
Wed, 3 Dec - Thu, 4 Dec
Alaska Airlines Logo
4:45 p.m. - 11:59 p.m.YYZ-OAK
10h 14m1 stop
Alaska Airlines Logo
6:30 a.m. - 3:35 p.m.OAK-YYZ
30h 05m1 stop
C$ 503Alaska Airlines
Find Deal
Sat, 1 Nov - Mon, 10 Nov
Alaska Airlines Logo
4:45 p.m. - 11:38 p.m.YYZ-OAK
9h 53m1 stop
Alaska Airlines Logo
6:30 a.m. - 3:35 p.m.OAK-YYZ
30h 05m1 stop
C$ 504Alaska Airlines
Find Deal
Thu, 5 Feb - Mon, 9 Feb
Alaska Airlines Logo
4:45 p.m. - 11:38 p.m.YYZ-OAK
9h 53m1 stop
Alaska Airlines Logo
6:45 p.m. - 3:35 p.m.OAK-YYZ
17h 50m2 stops
C$ 514Alaska Airlines
Find Deal
Thu, 5 Feb - Mon, 9 Feb
Alaska Airlines Logo
4:45 p.m. - 12:03 a.m.YYZ-OAK
10h 18m1 stop
Alaska Airlines Logo
8:05 p.m. - 3:00 p.m.OAK-YYZ
15h 55m1 stop
C$ 525Alaska Airlines
Find Deal
Thu, 16 Oct - Mon, 20 Oct
Alaska Airlines Logo
4:45 p.m. - 11:38 p.m.YYZ-OAK
9h 53m1 stop
Alaska Airlines Logo
6:30 a.m. - 3:35 p.m.OAK-YYZ
30h 05m1 stop
C$ 528Alaska Airlines
Find Deal
Sat, 24 Jan - Sun, 1 Feb
Multiple Airlines Logo
8:00 a.m. - 12:03 a.m.YYZ-OAK
19h 03m2 stops
Multiple Airlines Logo
8:05 p.m. - 3:00 p.m.OAK-YYZ
15h 55m1 stop
C$ 535Multiple Airlines
Find Deal
Wed, 15 Oct - Wed, 22 Oct
Delta Logo
5:50 p.m. - 11:53 p.m.YYZ-OAK
9h 03m1 stop
Delta Logo
4:51 p.m. - 11:21 a.m.OAK-YYZ
15h 30m2 stops
C$ 561Delta
Find Deal
Fri, 10 Oct - Mon, 20 Oct
Delta Logo
5:50 p.m. - 11:53 p.m.YYZ-OAK
9h 03m1 stop
Delta Logo
4:51 p.m. - 11:21 a.m.OAK-YYZ
15h 30m2 stops
C$ 584Delta
Find Deal
Thu, 16 Oct - Mon, 20 Oct
Delta Logo
6:20 a.m. - 9:32 p.m.YYZ-OAK
18h 12m2 stops
Delta Logo
4:51 p.m. - 11:21 a.m.OAK-YYZ
15h 30m2 stops
C$ 620Delta
Find Deal
Sat, 11 Oct - Mon, 20 Oct

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
3 Dec
YYZ4:45 p.m.Toronto Pearson Intl
10h 14m
1 stop
OAK11:59 p.m.Oakland
4 Dec
OAK6:40 a.m.Oakland
29h 55m
1 stop
YYZ3:35 p.m.Toronto Pearson Intl
C$ 501
Find similar
Alaska Airlines
1 Nov
YYZ4:45 p.m.Toronto Pearson Intl
10h 14m
1 stop
OAK11:59 p.m.Oakland
10 Nov
OAK6:30 a.m.Oakland
30h 05m
1 stop
YYZ3:35 p.m.Toronto Pearson Intl
C$ 503
Find similar
Alaska Airlines
5 Feb
YYZ4:45 p.m.Toronto Pearson Intl
9h 53m
1 stop
OAK11:38 p.m.Oakland
9 Feb
OAK6:30 a.m.Oakland
30h 05m
1 stop
YYZ3:35 p.m.Toronto Pearson Intl
C$ 504
Find similar

Delta flights from Region of Ontario to Oakland, California

Our best Delta deals on Region of Ontario to Oakland, California flight tickets
Delta
10 Oct
YYZ5:50 p.m.Toronto Pearson Intl
9h 03m
1 stop
OAK11:53 p.m.Oakland
20 Oct
OAK4:51 p.m.Oakland
15h 30m
2 stops
YYZ11:21 a.m.Toronto Pearson Intl
C$ 561
Find similar
Delta
16 Oct
YYZ5:50 p.m.Toronto Pearson Intl
9h 03m
1 stop
OAK11:53 p.m.Oakland
20 Oct
OAK4:51 p.m.Oakland
15h 30m
2 stops
YYZ11:21 a.m.Toronto Pearson Intl
C$ 584
Find similar
Delta
11 Oct
YYZ6:20 a.m.Toronto Pearson Intl
18h 12m
2 stops
OAK9:32 p.m.Oakland
20 Oct
OAK4:51 p.m.Oakland
15h 30m
2 stops
YYZ11:21 a.m.Toronto Pearson Intl
C$ 620
Find similar

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 16 September 2025.
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

Wed 3/12

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

1 stop10h 14m

Oakland

Thu 4/12

6:40 a.m.-3:35 p.m.

1 stop29h 55m

C$ 501

TorontoOakland

YYZ - OAK

YYZOAK

Toronto Pearson Intl

Sat 1/11

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

1 stop10h 14m

Oakland

Mon 10/11

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

1 stop30h 05m

C$ 503

TorontoOakland

YYZ - OAK

YYZOAK

Toronto Pearson Intl

Thu 5/2

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

1 stop9h 53m

Oakland

Mon 9/2

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

1 stop30h 05m

C$ 504

TorontoOakland

YYZ - OAK

YYZOAK

Toronto Pearson Intl

Thu 5/2

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

1 stop9h 53m

Oakland

Mon 9/2

6:45 p.m.-3:35 p.m.

2 stops17h 50m

C$ 514

TorontoOakland

YYZ - OAK

YYZOAK

Toronto Pearson Intl

Thu 16/10

4:45 p.m.-12:03 a.m.

1 stop10h 18m

Oakland

Mon 20/10

8:05 p.m.-3:00 p.m.

1 stop15h 55m

C$ 525

TorontoOakland

YYZ - OAK

YYZOAK

Toronto Pearson Intl

Sat 24/1

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

1 stop9h 53m

Oakland

Sun 1/2

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

1 stop30h 05m

C$ 528

TorontoOakland

YYZ - OAK

YYZOAK

Toronto Pearson Intl

Wed 15/10

8:00 a.m.-12:03 a.m.

2 stops19h 03m

Oakland

Wed 22/10

8:05 p.m.-3:00 p.m.

1 stop15h 55m

C$ 535

TorontoOakland

YYZ - OAK

YYZOAK

Toronto Pearson Intl

Fri 10/10

5:50 p.m.-11:53 p.m.

1 stop9h 03m

Oakland

Mon 20/10

4:51 p.m.-11:21 a.m.

2 stops15h 30m

C$ 561

TorontoOakland

YYZ - OAK

YYZOAK

Toronto Pearson Intl

Thu 16/10

5:50 p.m.-11:53 p.m.

1 stop9h 03m

Oakland

Mon 20/10

4:51 p.m.-11:21 a.m.

2 stops15h 30m

C$ 584

TorontoOakland

YYZ - OAK

YYZOAK

Toronto Pearson Intl

Sat 11/10

6:20 a.m.-9:32 p.m.

2 stops18h 12m

Oakland

Mon 20/10

4:51 p.m.-11:21 a.m.

2 stops15h 30m

C$ 620

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
1
2

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 day to depart on your flight to Oakland, California?

The cheapest day to depart from Region of Ontario to Oakland, California is on a Friday. Travellers who choose to depart for Oakland, California on a Friday will often find tickets for as low as C$ 540. If your travel schedule is flexible, try to avoid departing on a Sunday because tickets tend to average around C$ 927. These prices are subject to change though, so be sure to set up a Price Alert for flights to Oakland, California.

What is the cheapest time of day to depart on your flight to Oakland, California?

In the morning is the cheapest time of day to fly from Region of Ontario to Oakland, California when you can find flight prices for as low as C$ 692. Flying to Oakland, California in the morning is an ideal time because this is during off-peak travel hours. Flights to Oakland, California are more costly in the afternoon, with an average ticket price of C$ 842. Departure times in the afternoon fall within the peak daily travel times, which is why tickets can be more expensive.

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

Direct flights

None
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.

An easier way to manage your Oakland, California trip

We make it super easy to schedule, organize and travel with friends or family. Trips is free — and available to use no matter where you book.
Start using Trips
Find my bookings

Get notified when prices go down

Daily price changes in your inbox - only with Price Alerts.
1 adult
Thu 16/10
Thu 23/10
By creating a price alert you accept our terms of use and privacy policy.

Find better results for your trip to the United States