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Cheap flights from Ontario to San Francisco from $182

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 9/28. 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
1 adult, Economy, 0 bags

Find the cheapest flights from Ontario to San Francisco

Cheap round-trip flights

Enter your travel dates to find the best prices.
Multiple Airlines Logo
8:35 pm - 11:51 am
YYZ
-
OAK
18h 16m
1 stop
Multiple Airlines Logo
6:51 pm - 6:39 am
OAK
-
YYZ
8h 48m
1 stop
$308Multiple Airlines
Mon, Sep 14 - Mon, Sep 21
Multiple Airlines Logo
8:35 pm - 11:51 am
YYZ
-
OAK
18h 16m
1 stop
Multiple Airlines Logo
6:51 pm - 6:39 am
OAK
-
YYZ
8h 48m
1 stop
$315Multiple Airlines
Mon, Sep 14 - Mon, Sep 21
Multiple Airlines Logo
8:35 pm - 11:51 am
YYZ
-
OAK
18h 16m
1 stop
Multiple Airlines Logo
6:51 pm - 6:39 am
OAK
-
YYZ
8h 48m
1 stop
$317Multiple Airlines
Mon, Sep 14 - Mon, Sep 21
Multiple Airlines Logo
7:00 am - 5:56 pm
YYZ
-
OAK
13h 56m
1 stop
Multiple Airlines Logo
6:51 pm - 5:09 pm
OAK
-
YYZ
19h 18m
1 stop
$352Multiple Airlines
Fri, Sep 11 - Sun, Sep 20
Multiple Airlines Logo
8:35 pm - 9:22 am
YYZ
-
OAK
15h 47m
1 stop
Multiple Airlines Logo
6:51 pm - 6:39 am
OAK
-
YYZ
8h 48m
1 stop
$359Multiple Airlines
Sun, Sep 13 - Sun, Sep 20
Multiple Airlines Logo
12:40 pm - 11:51 am
YYZ
-
OAK
26h 11m
2 stops
Multiple Airlines Logo
6:51 pm - 6:39 am
OAK
-
YYZ
8h 48m
1 stop
$381Multiple Airlines
Mon, Sep 14 - Mon, Sep 21
Multiple Airlines Logo
12:40 pm - 11:51 am
YYZ
-
OAK
26h 11m
2 stops
Multiple Airlines Logo
6:51 pm - 6:39 am
OAK
-
YYZ
8h 48m
1 stop
$383Multiple Airlines
Mon, Sep 14 - Mon, Sep 21
Multiple Airlines Logo
7:00 am - 11:51 am
YYZ
-
OAK
31h 51m
2 stops
Multiple Airlines Logo
10:17 am - 6:55 am
OAK
-
YYZ
17h 38m
2 stops
$387Multiple Airlines
Mon, Sep 14 - Mon, Sep 21
Multiple Airlines Logo
8:35 pm - 11:51 am
YYZ
-
OAK
18h 16m
1 stop
Multiple Airlines Logo
6:51 pm - 6:39 am
OAK
-
YYZ
8h 48m
1 stop
$389Multiple Airlines
Fri, Sep 11 - Fri, Sep 18
Multiple Airlines Logo
8:35 pm - 11:18 am
YYZ
-
OAK
17h 43m
1 stop
Multiple Airlines Logo
12:13 pm - 6:39 am
OAK
-
YYZ
15h 26m
1 stop
$399Multiple Airlines
Sun, Aug 30 - Mon, Sep 7

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Delta flights from Region of Ontario to Oakland, California

Our best Delta deals on Region of Ontario to Oakland, California flight tickets
Delta
Aug 25
YYZ6:15 amToronto Pearson Intl
12h 59m
2 stops
OAK4:14 pmOakland
Sep 8
OAK5:00 pmOakland
16h 19m
2 stops
YYZ12:19 pmToronto Pearson Intl
$472
Delta
Sep 11
YYZ4:05 pmToronto Pearson Intl
10h 54m
2 stops
OAK11:59 pmOakland
Sep 20
OAK6:00 amOakland
7h 44m
1 stop
YYZ4:44 pmToronto Pearson Intl
$482
Delta
Oct 31
YYZ6:00 amToronto Pearson Intl
13h 22m
2 stops
OAK4:22 pmOakland
Nov 2
OAK5:02 pmOakland
16h 17m
2 stops
YYZ12:19 pmToronto Pearson Intl
$488

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
Oct 31
YYZ5:15 pmToronto Pearson Intl
8h 40m
1 stop
OAK10:55 pmOakland
Nov 2
OAK8:07 amOakland
28h 58m
2 stops
YYZ4:05 pmToronto Pearson Intl
$509
Alaska Airlines
Aug 6
YYZ11:39 amToronto Pearson Intl
13h 02m
2 stops
OAK9:41 pmOakland
Aug 13
OAK7:13 pmOakland
12h 46m
2 stops
YYZ10:59 amToronto Pearson Intl
$1,197
Alaska Airlines
Aug 6
YYZ4:55 pmToronto Pearson Intl
19h 31m
1 stop
OAK9:26 amOakland
Aug 13
OAK7:13 pmOakland
12h 46m
2 stops
YYZ10:59 amToronto Pearson Intl
$1,314

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 832,500 searches. Data last updated August 2, 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

Mon 9/14

8:35 pm-11:51 am

1 stop18h 16m

Oakland

Mon 9/21

6:51 pm-6:39 am

1 stop8h 48m

$308

TorontoOakland

YYZ - OAK

YYZOAK

Toronto Pearson Intl

Mon 9/14

8:35 pm-11:51 am

1 stop18h 16m

Oakland

Mon 9/21

6:51 pm-6:39 am

1 stop8h 48m

$315

TorontoOakland

YYZ - OAK

YYZOAK

Toronto Pearson Intl

Mon 9/14

8:35 pm-11:51 am

1 stop18h 16m

Oakland

Mon 9/21

6:51 pm-6:39 am

1 stop8h 48m

$317

TorontoOakland

YYZ - OAK

YYZOAK

Toronto Pearson Intl

Fri 9/11

7:00 am-5:56 pm

1 stop13h 56m

Oakland

Sun 9/20

6:51 pm-5:09 pm

1 stop19h 18m

$352
Quickest round-trip

TorontoOakland

YYZ - OAK

YYZOAK

Toronto Pearson Intl

Sun 9/13

8:35 pm-9:22 am

1 stop15h 47m

Oakland

Sun 9/20

6:51 pm-6:39 am

1 stop8h 48m

$359

TorontoOakland

YYZ - OAK

YYZOAK

Toronto Pearson Intl

Mon 9/14

12:40 pm-11:51 am

2 stops26h 11m

Oakland

Mon 9/21

6:51 pm-6:39 am

1 stop8h 48m

$381

TorontoOakland

YYZ - OAK

YYZOAK

Toronto Pearson Intl

Mon 9/14

12:40 pm-11:51 am

2 stops26h 11m

Oakland

Mon 9/21

6:51 pm-6:39 am

1 stop8h 48m

$383

TorontoOakland

YYZ - OAK

YYZOAK

Toronto Pearson Intl

Mon 9/14

7:00 am-11:51 am

2 stops31h 51m

Oakland

Mon 9/21

10:17 am-6:55 am

2 stops17h 38m

$387

TorontoOakland

YYZ - OAK

YYZOAK

Toronto Pearson Intl

Fri 9/11

8:35 pm-11:51 am

1 stop18h 16m

Oakland

Fri 9/18

6:51 pm-6:39 am

1 stop8h 48m

$389

TorontoOakland

YYZ - OAK

YYZOAK

Toronto Pearson Intl

Sun 8/30

8:35 pm-11:18 am

1 stop17h 43m

Oakland

Mon 9/7

12:13 pm-6:39 am

1 stop15h 26m

$399

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

Can stopping save me money on Region of Ontario to Oakland, California flights?

You could potentially save up to 19% on your flight if you consider stops on a Region of Ontario to Oakland, California flight.

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

12h 22m

Direct flights

None
The fastest flight from Region of Ontario to Oakland, California takes 12h 22m
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.
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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 are updated 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 required travel and health documents for your Oakland Airport trip may vary depending on your itinerary and personal circumstances. As a general rule, you should carry multiple documents, including a national ID card or driver's license and a passport valid for six months after your intended arrival at Oakland Airport. We recommend that you seek guidance from your airline or a reliable third party such as IATA.

Why use momondo?

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

It is quick and easy to find Ontario to Oakland flights on momondo. We search and return numerous flight options from various airlines and agents. You can then use our filters to narrow your search until you have found the most convenient flight to Oakland that suits you.

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

Flights from Ontario to Oakland with flexible booking policies can be found by using the search form above and then selecting our dedicated flexible booking filter, which will highlight only the flights where this policy is applied.

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

Once all potential Ontario to Oakland flight options are in front of you, momondo lets you sort and filter flights based on preferences such as airline, price and flight times amongst many other options.

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

If you are simply researching potential flights to Oakland, momondo offers a useful price alert feature which will track prices for flights to Oakland from Ontario and alert you when they change.

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