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 42% 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.

$214 Cheap Flights from Oakland to Ontario in 2026

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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.

5:55 am - 4:45 pm

OAK

YYZ

7h 50m

1 stop

5:50 pm - 11:49 pm

YYZ

OAK

8h 59m

1 stop

$518Delta

Wed, Sep 16 - Tue, Sep 22

6:00 am - 4:35 pm

OAK

YYZ

7h 35m

1 stop

5:45 pm - 11:54 pm

YYZ

OAK

9h 09m

1 stop

$519Delta

Tue, Jun 16 - Tue, Jun 23

6:00 am - 4:35 pm

OAK

YYZ

7h 35m

1 stop

6:30 am - 4:23 pm

YYZ

OAK

12h 53m

2 stops

$528Delta

Sat, Jun 20 - Sun, Jun 28

6:00 am - 4:35 pm

OAK

YYZ

7h 35m

1 stop

5:45 pm - 11:54 pm

YYZ

OAK

9h 09m

1 stop

$529Delta

Tue, Jun 16 - Tue, Jun 23

5:55 am - 4:45 pm

OAK

YYZ

7h 50m

1 stop

5:50 pm - 11:56 pm

YYZ

OAK

9h 06m

1 stop

$532Delta

Wed, Sep 30 - Wed, Oct 7

6:00 am - 11:58 pm

OAK

YYZ

14h 58m

2 stops

12:09 pm - 11:54 pm

YYZ

OAK

14h 45m

2 stops

$534Delta

Sat, Jun 27 - Thu, Jul 2

6:00 am - 6:33 pm

OAK

YYZ

9h 33m

2 stops

5:45 pm - 11:51 pm

YYZ

OAK

9h 06m

1 stop

$539Delta

Tue, Jul 21 - Fri, Aug 7

8:04 am - 1:05 am

OAK

YYZ

14h 01m

2 stops

4:55 pm - 11:59 pm

YYZ

OAK

10h 04m

1 stop

$543Multiple Airlines

Wed, Sep 30 - Wed, Oct 7

5:55 pm - 8:55 am

OAK

YYZ

12h 00m

2 stops

4:10 pm - 11:54 pm

YYZ

OAK

10h 44m

2 stops

$544Delta

Sat, Jun 6 - Tue, Jun 9

11:30 pm - 2:15 pm

OAK

YTZ

35h 45m

3 stops

6:55 pm - 9:44 pm

YTZ

OAK

29h 49m

3 stops

$964Multiple Airlines

Mon, Jun 1 - Mon, Jun 8

Delta flights from Oakland, California to Region of Ontario

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

Delta

Sep 16

OAK5:55 amOakland

7h 50m

1 stop

YYZ4:45 pmToronto Pearson Intl

Sep 22

YYZ5:50 pmToronto Pearson Intl

8h 59m

1 stop

OAK11:49 pmOakland

$518

Delta

Jun 16

OAK6:00 amOakland

7h 35m

1 stop

YYZ4:35 pmToronto Pearson Intl

Jun 23

YYZ5:45 pmToronto Pearson Intl

9h 09m

1 stop

OAK11:54 pmOakland

$519

Delta

Jun 20

OAK6:00 amOakland

7h 35m

1 stop

YYZ4:35 pmToronto Pearson Intl

Jun 28

YYZ6:30 amToronto Pearson Intl

12h 53m

2 stops

OAK4:23 pmOakland

$528

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

Jun 1

OAK2:58 pmOakland

21h 47m

2 stops

YYZ3:45 pmToronto Pearson Intl

Jun 6

YYZ4:55 pmToronto Pearson Intl

19h 00m

2 stops

OAK8:55 amOakland

$594

Alaska Airlines

May 15

OAK7:00 amOakland

29h 45m

1 stop

YYZ3:45 pmToronto Pearson Intl

May 19

YYZ4:55 pmToronto Pearson Intl

10h 04m

1 stop

OAK11:59 pmOakland

$624

Alaska Airlines

May 15

OAK7:00 amOakland

29h 45m

1 stop

YYZ3:45 pmToronto Pearson Intl

May 19

YYZ4:55 pmToronto Pearson Intl

19h 00m

2 stops

OAK8:55 amOakland

$634

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

Wed 9/16

5:55 am-4:45 pm

1 stop7h 50m

Toronto Pearson Intl

Tue 9/22

5:50 pm-11:49 pm

1 stop8h 59m

$518

Quickest round-trip

OaklandToronto

OAK - YYZ

OAKYYZ

Oakland

Tue 6/16

6:00 am-4:35 pm

1 stop7h 35m

Toronto Pearson Intl

Tue 6/23

5:45 pm-11:54 pm

1 stop9h 09m

$519

OaklandToronto

OAK - YYZ

OAKYYZ

Oakland

Sat 6/20

6:00 am-4:35 pm

1 stop7h 35m

Toronto Pearson Intl

Sun 6/28

6:30 am-4:23 pm

2 stops12h 53m

$528

OaklandToronto

OAK - YYZ

OAKYYZ

Oakland

Tue 6/16

6:00 am-4:35 pm

1 stop7h 35m

Toronto Pearson Intl

Tue 6/23

5:45 pm-11:54 pm

1 stop9h 09m

$529

OaklandToronto

OAK - YYZ

OAKYYZ

Oakland

Wed 9/30

5:55 am-4:45 pm

1 stop7h 50m

Toronto Pearson Intl

Wed 10/7

5:50 pm-11:56 pm

1 stop9h 06m

$532

OaklandToronto

OAK - YYZ

OAKYYZ

Oakland

Sat 6/27

6:00 am-11:58 pm

2 stops14h 58m

Toronto Pearson Intl

Thu 7/2

12:09 pm-11:54 pm

2 stops14h 45m

$534

OaklandToronto

OAK - YYZ

OAKYYZ

Oakland

Tue 7/21

6:00 am-6:33 pm

2 stops9h 33m

Toronto Pearson Intl

Fri 8/7

5:45 pm-11:51 pm

1 stop9h 06m

$539

OaklandToronto

OAK - YYZ

OAKYYZ

Oakland

Wed 9/30

8:04 am-1:05 am

2 stops14h 01m

Toronto Pearson Intl

Wed 10/7

4:55 pm-11:59 pm

1 stop10h 04m

$543

OaklandToronto

OAK - YYZ

OAKYYZ

Oakland

Sat 6/6

5:55 pm-8:55 am

2 stops12h 00m

Toronto Pearson Intl

Tue 6/9

4:10 pm-11:54 pm

2 stops10h 44m

$544

OaklandToronto

OAK - YTZ

OAKYTZ

Oakland

Mon 6/1

11:30 pm-2:15 pm

3 stops35h 45m

Toronto Island

Mon 6/8

6:55 pm-9:44 pm

3 stops29h 49m

$964

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

What is the cheapest month to fly to Region of Ontario?

The month of January is, on average, the cheapest month to fly to Region of Ontario from Oakland, California, with most prices found around $0. If you aren’t able to travel during the month of January, then book flights to Region of Ontario from Oakland, California during October instead. Flights to Region of Ontario in October, while not as cheap as those in January, still average around $172.

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.