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

Delta is the most popular carrier operating from Oakland to Ontario

What airlines fly to Region of Ontario?

Air Canada, Porter Airlines and United Airlines are the top three most popular airlines that fly to Region of Ontario from Oakland, California according to our data. Air Canada is the first choice among our users, with 39% of people opting to fly with this airline when traveling to Region of Ontario. Keep in mind that there are 8 different airlines that fly to Region of Ontario on a routine basis, so you have a few additional options to choose from.

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

Prices for flights from Oakland Airport to Ontario refresh daily.

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

Although the minimum age for a child to fly alone is five, airlines that offer an unaccompanied minor (UMNR) service may have their own age limits, which could be impacted by factors such as flight length, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Oakland Airport to Ontario.

What documentation or ID do you need to fly to Ontario?

The necessary travel and health documents for your Ontario trip may vary depending on your travel plans and individual circumstances. Generally, you should have various documents, such as a national ID card or driver's license and a passport that is valid for six months beyond your scheduled arrival date. We recommend seeking advice from your airline or a trusted third party, such as IATA.

$202 Cheap Flights from Oakland, California to Ontario in 2026

Find the cheapest flights from Oakland, California to Ontario

Round-trip

One-way

Last minute

Cheap round-trip flights

Enter your travel dates to find the best prices.

6:50 pm - 3:45 pm

OAK

YYZ

17h 55m

2 stops

4:55 pm - 10:55 pm

YYZ

OAK

9h 00m

1 stop

$564Alaska Airlines

Tue, Oct 13 - Fri, Oct 30

6:50 pm - 3:45 pm

OAK

YYZ

17h 55m

2 stops

4:55 pm - 4:24 pm

YYZ

OAK

26h 29m

2 stops

$575Alaska Airlines

Tue, Oct 13 - Fri, Oct 30

6:50 pm - 3:45 pm

OAK

YYZ

17h 55m

2 stops

4:55 pm - 9:43 am

YYZ

OAK

19h 48m

2 stops

$590Alaska Airlines

Tue, Oct 13 - Thu, Oct 29

6:00 am - 4:40 pm

OAK

YYZ

7h 40m

1 stop

6:25 pm - 11:52 am

YYZ

OAK

20h 27m

2 stops

$593Delta

Mon, Aug 24 - Tue, Aug 25

5:03 pm - 11:57 pm

OAK

YUL

27h 54m

2 stops

7:00 am - 11:59 pm

YUL

OAK

19h 59m

2 stops

$594Delta

Tue, Sep 22 - Tue, Sep 29

7:51 pm - 3:45 pm

OAK

YYZ

16h 54m

1 stop

4:55 pm - 10:55 pm

YYZ

OAK

9h 00m

1 stop

$597Alaska Airlines

Fri, Oct 2 - Sat, Oct 10

5:00 pm - 11:25 am

OAK

YYZ

15h 25m

2 stops

6:25 pm - 11:48 am

YYZ

OAK

20h 23m

2 stops

$598Delta

Sat, Aug 22 - Fri, Aug 28

7:00 am - 3:45 pm

OAK

YYZ

29h 45m

1 stop

4:55 pm - 10:55 pm

YYZ

OAK

9h 00m

1 stop

$599Alaska Airlines

Wed, Oct 14 - Wed, Oct 28

5:03 pm - 11:44 pm

OAK

YUL

27h 41m

2 stops

7:00 am - 11:59 pm

YUL

OAK

19h 59m

2 stops

$601Delta

Fri, Sep 25 - Tue, Sep 29

11:15 pm - 12:20 am

OAK

YOW

22h 05m

3 stops

7:00 am - 9:44 pm

YOW

OAK

17h 44m

3 stops

$927Multiple Airlines

Mon, Jul 6 - Fri, Jul 10

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Delta flights from Oakland, California to Region of Ontario

Our best Delta deals on Oakland, California to Region of Ontario flight tickets

Delta

Aug 24

OAK6:00 amOakland

7h 40m

1 stop

YYZ4:40 pmToronto Pearson Intl

Aug 25

YYZ6:25 pmToronto Pearson Intl

20h 27m

2 stops

OAK11:52 amOakland

$593

Delta

Sep 22

OAK5:03 pmOakland

27h 54m

2 stops

YUL11:57 pmMontreal Pierre Elliott Trudeau Intl

Sep 29

YUL7:00 amMontreal Pierre Elliott Trudeau Intl

19h 59m

2 stops

OAK11:59 pmOakland

$594

Delta

Aug 22

OAK5:00 pmOakland

15h 25m

2 stops

YYZ11:25 amToronto Pearson Intl

Aug 28

YYZ6:25 pmToronto Pearson Intl

20h 23m

2 stops

OAK11:48 amOakland

$598

Alaska Airlines flights from Oakland, California to Region of Ontario

Our best Alaska Airlines deals on Oakland, California to Region of Ontario flight tickets

Alaska Airlines

Oct 13

OAK6:50 pmOakland

17h 55m

2 stops

YYZ3:45 pmToronto Pearson Intl

Oct 30

YYZ4:55 pmToronto Pearson Intl

9h 00m

1 stop

OAK10:55 pmOakland

$564

Alaska Airlines

Oct 13

OAK6:50 pmOakland

17h 55m

2 stops

YYZ3:45 pmToronto Pearson Intl

Oct 30

YYZ4:55 pmToronto Pearson Intl

26h 29m

2 stops

OAK4:24 pmOakland

$575

Alaska Airlines

Oct 13

OAK6:50 pmOakland

17h 55m

2 stops

YYZ3:45 pmToronto Pearson Intl

Oct 29

YYZ4:55 pmToronto Pearson Intl

19h 48m

2 stops

OAK9:43 amOakland

$590

momondo Fare Finder

Use the filters below to find and compare flights from Oakland, California to Ontario that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

OaklandToronto

OAK - YYZ

OAKYYZ

Oakland

Tue 10/13

6:50 pm-3:45 pm

2 stops17h 55m

Toronto Pearson Intl

Fri 10/30

4:55 pm-10:55 pm

1 stop9h 00m

$564

OaklandToronto

OAK - YYZ

OAKYYZ

Oakland

Tue 10/13

6:50 pm-3:45 pm

2 stops17h 55m

Toronto Pearson Intl

Fri 10/30

4:55 pm-4:24 pm

2 stops26h 29m

$575

OaklandToronto

OAK - YYZ

OAKYYZ

Oakland

Tue 10/13

6:50 pm-3:45 pm

2 stops17h 55m

Toronto Pearson Intl

Thu 10/29

4:55 pm-9:43 am

2 stops19h 48m

$590

OaklandToronto

OAK - YYZ

OAKYYZ

Oakland

Mon 8/24

6:00 am-4:40 pm

1 stop7h 40m

Toronto Pearson Intl

Tue 8/25

6:25 pm-11:52 am

2 stops20h 27m

$593

OaklandMontreal

OAK - YUL

OAKYUL

Oakland

Tue 9/22

5:03 pm-11:57 pm

2 stops27h 54m

Montreal Pierre Elliott Trudeau Intl

Tue 9/29

7:00 am-11:59 pm

2 stops19h 59m

$594

Quickest round-trip

OaklandToronto

OAK - YYZ

OAKYYZ

Oakland

Fri 10/2

7:51 pm-3:45 pm

1 stop16h 54m

Toronto Pearson Intl

Sat 10/10

4:55 pm-10:55 pm

1 stop9h 00m

$597

OaklandToronto

OAK - YYZ

OAKYYZ

Oakland

Sat 8/22

5:00 pm-11:25 am

2 stops15h 25m

Toronto Pearson Intl

Fri 8/28

6:25 pm-11:48 am

2 stops20h 23m

$598

OaklandToronto

OAK - YYZ

OAKYYZ

Oakland

Wed 10/14

7:00 am-3:45 pm

1 stop29h 45m

Toronto Pearson Intl

Wed 10/28

4:55 pm-10:55 pm

1 stop9h 00m

$599

OaklandMontreal

OAK - YUL

OAKYUL

Oakland

Fri 9/25

5:03 pm-11:44 pm

2 stops27h 41m

Montreal Pierre Elliott Trudeau Intl

Tue 9/29

7:00 am-11:59 pm

2 stops19h 59m

$601

OaklandOttawa

OAK - YOW

OAKYOW

Oakland

Mon 7/6

11:15 pm-12:20 am

3 stops22h 05m

Ottawa

Fri 7/10

7:00 am-9:44 pm

3 stops17h 44m

$927

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first

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

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

Prices

Airlines

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

You could potentially save up to 28% on your flight if you consider stops on a Oakland, California to Region of Ontario flight.

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

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

Fastest flight time	7h 35m
Direct flights	None

The fastest flight from Oakland, California to Region of Ontario takes 7h 35m

There are no direct flights from Oakland, California to Region of Ontario. There are no popular flight routes from Oakland, California to Region of Ontario.

Search flight deals

Frequently asked questions about flying from Oakland, California to Ontario

When did momondo last update prices for flights from Oakland Airport to Ontario?
Prices for flights from Oakland Airport to Ontario refresh daily.
How old do you have to be to fly from Oakland Airport to Ontario?
Although the minimum age for a child to fly alone is five, airlines that offer an unaccompanied minor (UMNR) service may have their own age limits, which could be impacted by factors such as flight length, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Oakland Airport to Ontario.
What documentation or ID do you need to fly to Ontario?
The necessary travel and health documents for your Ontario trip may vary depending on your travel plans and individual circumstances. Generally, you should have various documents, such as a national ID card or driver's license and a passport that is valid for six months beyond your scheduled arrival date. We recommend seeking 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 Oakland to Ontario?

momondo compares prices from hundreds of airlines and agents so you can find and book the best deal on flights from Oakland to Ontario. Millions of users trust and use momondo every year so you are in good hands.

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

Yes. momondo allows you to filter the results for Oakland to Ontario flights to just show those with flexible booking policies.

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

Once all potential Oakland to Ontario 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 Oakland to Ontario right now. Can momondo alert me if prices change?

Yes momondo offers price alerts on flights to Ontario from Oakland. After performing a search on this page you should be able to see the price alert set up feature. Simply provide a valid email address and momondo will instantly alert you when prices change.