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>

$148 CHEAP FLIGHTS from Ontario to San Diego

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

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Flights 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.

Round-trip

One-way

Last minute

Direct

Recent round-trip flight deals from Ontario to San Diego

KAYAK's recommended round-trip deals from the most popular airlines that fly from Ontario to San Diego.

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

4:45 pm - 7:45 pmYUL-SAN

6h 00mnonstop

10:30 pm - 10:40 amSAN-YUL

9h 10m1 stop

$254Air Canada

Find Deal

Thu, May 22 - Thu, May 29

7:00 am - 7:53 pmYYZ-SAN

15h 53m1 stop

6:15 am - 5:20 pmSAN-YYZ

8h 05m1 stop

$255

Find Deal

Wed, May 21 - Wed, May 28

10:45 am - 12:55 pmYYZ-SAN

5h 10mnonstop

1:55 pm - 9:45 pmSAN-YYZ

4h 50mnonstop

$260Porter Airlines

Find Deal

Wed, May 21 - Wed, May 28

4:45 pm - 7:45 pmYUL-SAN

6h 00mnonstop

9:10 pm - 9:23 amSAN-YUL

9h 13m1 stop

$272United Airlines

Find Deal

Sat, May 31 - Sat, Jun 7

6:15 am - 11:23 amYUL-SAN

8h 08m1 stop

8:40 pm - 1:55 pmSAN-YUL

14h 15m2 stops

$277United Airlines

Find Deal

Sat, May 31 - Sat, Jun 7

10:45 am - 12:55 pmYYZ-SAN

5h 10mnonstop

1:55 pm - 9:45 pmSAN-YYZ

4h 50mnonstop

$282Porter Airlines

Find Deal

Fri, Jul 4 - Sun, Jul 6

6:00 am - 1:20 pmYKF-SAN

10h 20m1 stop

11:15 am - 12:46 amSAN-YKF

10h 31m1 stop

$284WestJet

Find Deal

Thu, Jul 24 - Thu, Jul 31

6:30 am - 1:20 pmYYZ-SAN

9h 50m1 stop

2:05 pm - 5:51 amSAN-YYZ

12h 46m2 stops

$288WestJet

Find Deal

Wed, Jun 11 - Mon, Jun 16

6:30 am - 12:56 pmYYZ-SAN

9h 26m1 stop

11:40 am - 10:58 pmSAN-YYZ

8h 18m1 stop

$313Delta

Find Deal

Sat, May 17 - Wed, May 21

12:15 pm - 6:13 pmYYZ-SAN

8h 58m1 stop

10:10 pm - 8:53 amSAN-YYZ

7h 43m1 stop

$328Delta

Find Deal

Thu, Aug 28 - Mon, Sep 1

Useful Info

Low season	September
High season	December
Cheapest flight	$148

Best time to beat the crowds but there is an average 6% increase in price.

Most popular time to fly with an average 10% 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.

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)

$148 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

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.

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