How does KAYAK find such low prices on flights from Ontario to San Diego?

KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from Ontario to San Diego. Visit our flight page for the latest deals!>/a>

How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from Ontario to San Diego?

KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to San Diego from Ontario is likely to change within 7 days, so travelers know whether to wait or book now. Visit our flight page for the latest deals!>/a>

What is the Hacker Fare option on flights from Ontario to San Diego?

Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional round-trip ticket. You could then fly to San Diego with an airline and back to Ontario with another airline. Visit our flight page for the latest deals!>/a>

What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from Ontario to San Diego?

Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying to San Diego from Ontario up to 3 days before/after your preferred dates. You can then pick the flights that suit you best. Visit our flight page for the latest deals!>/a>

$139 CHEAP FLIGHTS from Ontario to San Diego

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Flight Deals

Cheap Flights from Ontario to San Diego

Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from Ontario to San Diego that are departing in the next months. While these flights were available on KAYAK in the last 72 hours, prices and availability are subject to change and deals may expire.

Discover the best prices for you by selecting your travel dates on KAYAK.

Round-trip

One-way

Last minute

Direct

Recent round-trip flight deals from Ontario to San Diego

Mon, Sep 29 - Tue, Oct 28

12:00 pm - 11:17 pmYYZ-SAN

14h 17m2 stops

8:02 am - 7:55 pmSAN-YYZ

8h 53m1 stop

$269Multiple Airlines

Find Deal

Mon, Oct 13 - Mon, Oct 27

8:00 am - 9:20 pmYYZ-SAN

40h 20m2 stops

3:23 pm - 1:40 pmSAN-YYZ

19h 17m2 stops

$270Multiple Airlines

Find Deal

Thu, Jan 29 - Sun, Feb 8

5:20 pm - 11:45 amYYZ-SAN

21h 25m2 stops

12:35 pm - 12:26 amSAN-YYZ

8h 51m1 stop

$299WestJet

Find Deal

Tue, Nov 25 - Tue, Dec 2

11:10 am - 10:20 pmYOW-SAN

14h 10m1 stop

7:00 am - 9:18 pmSAN-YOW

11h 18m1 stop

$307United Airlines

Find Deal

Tue, Nov 25 - Tue, Dec 2

6:20 am - 11:31 amYOW-SAN

8h 11m1 stop

5:08 pm - 10:26 amSAN-YOW

14h 18m1 stop

$308United Airlines

Find Deal

Thu, Jan 29 - Sun, Feb 8

6:10 pm - 11:45 amYHM-SAN

20h 35m1 stop

12:35 pm - 5:16 pmSAN-YHM

25h 41m1 stop

$332WestJet

Find Deal

Wed, Jan 14 - Sat, May 2

9:00 am - 5:24 pmYUL-SAN

11h 24m1 stop

8:10 am - 4:39 pmSAN-YUL

5h 29mnonstop

$370Air Canada

Find Deal

Thu, Dec 18 - Mon, Dec 29

6:00 am - 2:11 pmYUL-SAN

11h 11m1 stop

10:23 pm - 11:59 amSAN-YUL

10h 36m1 stop

$377Delta

Find Deal

Wed, Jan 14 - Sat, May 2

9:00 am - 5:24 pmYUL-SAN

11h 24m1 stop

8:10 am - 4:39 pmSAN-YUL

5h 29mnonstop

$378Air Canada

Find Deal

Sun, Oct 12 - Mon, Nov 3

6:00 am - 2:32 pmYUL-SAN

11h 32m1 stop

10:20 pm - 12:02 pmSAN-YUL

10h 42m1 stop

$387Delta

Find Deal

Cheapest round-trip

$269

Overall average: $444

Multiple Airlines

Mon 9/29Tue 10/28

YYZ - SAN • 2 stops

Cheapest non-stop

$357

Typical prices: $234-625

Air Canada

Wed 12/3Thu 12/4

YYZ - SAN • Non-stop

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KAYAK searches 100s of sites at once to find you the best travel deals.

We hope you love your trip to San Diego!

Useful Info

Low season	September
High season	December
Cheapest flight	$139

Best time to beat the crowds but there is an average 8% increase in price.

Most popular time to fly with an average 14% increase in price.

Flight from Montreal to San Diego

How does KAYAK find such low prices on flights from Ontario to San Diego?
KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from Ontario to San Diego.
How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from Ontario to San Diego?
KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to San Diego from Ontario is likely to change within 7 days, so travelers know whether to wait or book now.
What is the Hacker Fare option on flights from Ontario to San Diego?
Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional round-trip ticket. You could then fly to San Diego with an airline and back to Ontario with another airline.
What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from Ontario to San Diego?
Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying to San Diego from Ontario up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

Lemon Grove

Julian

National City

Borrego Springs

Poway

Alpine

Santee

Everything you need to know for your flight to San Diego

Airports

Cabin class

Complete your trip

Direct Flights

Flights to other cities

Origins

Other airports

Return flight deals

Information on the airport you'll fly into in San Diego

San Diego (SAN)

Not what you’re looking for? Find thousands of other hotels, flights, car rentals and package deals with KAYAK.

$139 Find Cheap Flights from Ontario to San Diego

KAYAK searches hundreds of travel sites at once for deals on flights to San Diego

Cheap Flights from Ontario to San Diego

Recent round-trip flight deals from Ontario to San Diego

Recent one-way flight deals from Ontario to San Diego

Recent last minute flight deals from Ontario to San Diego

Recent direct flight deals from Ontario to San Diego

Everything you should know

Good to know

FAQs for booking flights from Ontario to San Diego

How does KAYAK find such low prices on flights from Ontario to San Diego?

KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from Ontario to San Diego.

How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from Ontario to San Diego?

KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to San Diego from Ontario is likely to change within 7 days, so travelers know whether to wait or book now.

What is the Hacker Fare option on flights from Ontario to San Diego?

Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional round-trip ticket. You could then fly to San Diego with an airline and back to Ontario with another airline.

What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from Ontario to San Diego?

Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying to San Diego from Ontario up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

Traveling to a place near San Diego?

Everything you need to know for your flight to San Diego

Information on the airport you'll fly into in San Diego

Cabin class types available on flights to Ontario

Complete your trip to San Diego with a hotel stay or car rental

Find direct flights for San Diego

Flights to other popular destinations

Flights from domestic origins to San Diego

Choose which airport to fly into in San Diego

Find deals for your return flight