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Cheap flights from Ontario to San Diego from C$ 220

YYZ — SAN
25 Nov — 2 Dec1
1 adult
1 adult, Economy, 0 bags

Cheap flight deals from Ontario to San Diego

Enter your travel dates to find the best prices.

Cheapest flights from Ontario to San Diego

Thu 12/119:50 a.m. -
1 stop9h 32m
Mon 16/118:20 p.m. -
1 stop7h 31m
Deal found 21/10C$ 555
Thu 10/127:45 a.m. -
1 stop11h 25m
Mon 14/1212:55 p.m. -
1 stop8h 00m
Deal found 21/10C$ 559
Sun 6/128:30 p.m. -
1 stop14h 32m
Sun 13/127:46 a.m. -
1 stop11h 05m
Deal found 21/10C$ 560
Fri 13/119:50 a.m. -
1 stop9h 32m
Mon 16/118:20 p.m. -
1 stop7h 31m
Deal found 22/10C$ 566
Thu 19/119:50 a.m. -
2 stops17h 07m
Mon 23/118:11 p.m. -
1 stop22h 32m
Deal found 21/10C$ 567
Tue 24/119:50 a.m. -
1 stop12h 21m
Tue 1/1212:32 p.m. -
3 stops31h 23m
Deal found 21/10C$ 571
Thu 3/127:45 a.m. -
1 stop11h 25m
Wed 9/1212:55 p.m. -
1 stop8h 00m
Deal found 25/10C$ 574
Tue 10/119:50 a.m. -
1 stop9h 32m
Mon 16/118:20 p.m. -
1 stop7h 31m
Deal found 23/10C$ 574
Wed 18/119:05 a.m. -
2 stops28h 06m
Wed 25/118:50 a.m. -
1 stop10h 01m
Deal found 21/10C$ 577
Fri 13/115:15 p.m. -
2 stops18h 27m
Mon 16/116:35 p.m. -
2 stops18h 30m
Deal found 22/10C$ 580
Mon 7/124:15 p.m. -
3 stops21h 04m
Mon 14/1211:14 a.m. -
2 stops24h 46m
Deal found 25/10C$ 606
Mon 7/128:25 p.m. -
1 stop18h 35m
Mon 14/1212:55 p.m. -
1 stop9h 45m
Deal found 22/10C$ 611

Find flight deals from Ontario to San Diego

Round-trip from

C$ 555

One-way from

C$ 220

Popular in

August

Cheapest in

April

Average price

C$ 803

Good round-trip deal

C$ 767 or less

Good one-way deal

C$ 781 or less
12/11-16/11
  • 12/11-16/11
  • 2 total stops
  • 17h 03m total
  • Ontario to San Diego
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8/12-31/12
  • 8/12-31/12
  • 1 total stop
  • 11h 26m total
  • Ontario to San Diego
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Highest demand for flights based on searches. 9% potential increase in price (C$ 109 potential increase over avg. RT price).
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Cheapest flight prices on average. 1% potential price decrease (C$ 17 potential savings vs. average RT price).
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Average for round-trip flights in October 2026
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Price to beat on a round-trip flight from Ontario to San Diego.
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Price to beat on a one-way flight from Ontario to San Diego.
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Cheapflights Fare Finder

 
Use the filters below to find and compare flights from Ontario to San Diego that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

TorontoSan Diego

YYZ Toronto Pearson Intl - SAN San Diego

YYZSAN

Toronto Pearson Intl

Fri 15/1

12:40 p.m.-2:14 p.m.

2 stops28h 34m

San Diego

Wed 31/12

12:00 a.m.-3:00 a.m.

Nonstop0h 00m

C$ 273

OttawaSan Diego

YOW Ottawa - SAN San Diego

YOWSAN

Ottawa

Sat 5/12

7:00 a.m.-4:47 p.m.

2 stops12h 47m

San Diego

Wed 31/12

12:00 a.m.-3:00 a.m.

Nonstop0h 00m

C$ 276

OttawaSan Diego

YOW Ottawa - SAN San Diego

YOWSAN

Ottawa

Wed 9/12

7:00 a.m.-6:16 p.m.

2 stops14h 16m

San Diego

Wed 31/12

12:00 a.m.-3:00 a.m.

Nonstop0h 00m

C$ 301

LondonSan Diego

YXU London - SAN San Diego

YXUSAN

London

Tue 8/12

5:30 a.m.-4:10 p.m.

2 stops13h 40m

San Diego

Wed 31/12

12:00 a.m.-3:00 a.m.

Nonstop0h 00m

C$ 318

OttawaSan Diego

YOW Ottawa - SAN San Diego

YOWSAN

Ottawa

Wed 9/12

7:45 a.m.-4:10 p.m.

1 stop11h 25m

San Diego

Wed 31/12

12:00 a.m.-3:00 a.m.

Nonstop0h 00m

C$ 321

TorontoSan Diego

YTZ Toronto Island - SAN San Diego

YTZSAN

Toronto Island

Fri 15/1

4:35 p.m.-4:31 p.m.

2 stops26h 56m

San Diego

Wed 31/12

12:00 a.m.-3:00 a.m.

Nonstop0h 00m

C$ 325

OttawaSan Diego

YOW Ottawa - SAN San Diego

YOWSAN

Ottawa

Fri 27/11

6:00 a.m.-12:00 p.m.

1 stop9h 00m

San Diego

Wed 31/12

12:00 a.m.-3:00 a.m.

Nonstop0h 00m

C$ 326

OttawaSan Diego

YOW Ottawa - SAN San Diego

YOWSAN

Ottawa

Sun 17/1

6:10 a.m.-2:14 p.m.

2 stops35h 04m

San Diego

Wed 31/12

12:00 a.m.-3:00 a.m.

Nonstop0h 00m

C$ 332

TorontoSan Diego

YTZ Toronto Island - SAN San Diego

YTZSAN

Toronto Island

Mon 11/1

9:10 a.m.-11:58 p.m.

3 stops41h 48m

San Diego

Wed 31/12

12:00 a.m.-3:00 a.m.

Nonstop0h 00m

C$ 339

TorontoSan Diego

YYZ Toronto Pearson Intl - SAN San Diego

YYZSAN

Toronto Pearson Intl

Fri 13/11

5:15 p.m.-8:42 a.m.

2 stops18h 27m

San Diego

Wed 31/12

12:00 a.m.-3:00 a.m.

Nonstop0h 00m

C$ 340

Flights are sorted by cheapest round-trip flights first.

Deals found on 25/10

Showing 1-10 of 60 resultsSorted by cheapest first
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Best time to book a flight from Ontario to San Diego

Have a flexible travel schedule? Discover the best time to fly to San Diego from Ontario with our price prediction graph.
Estimated round-trip price

Cheapflights Insights

Everything you need to know about your flight from Ontario to San Diego

What is the cheapest month to book a flight from Region of Ontario to San Diego?

Currently, May is the cheapest month in which you can book a flight from Region of Ontario to San Diego (average of C$ 601). Flying from Region of Ontario to San Diego in October is currently the most expensive (average of C$ 783). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

What is the cheapest time of day to fly from ON to SAN?

When flying from Region of Ontario to San Diego, the time of day you decide to fly out makes little to no difference towards the overall price you’ll pay on tickets.

How much does it cost to fly round-trip from Region of Ontario to San Diego?

Airfare is below average for this route at the moment.
Region of Ontario to San Diego flights typically cost between C$ 646 and C$ 986 in November.
The cheapest round-trip price found within the last 5 days was C$ 555 on Multiple Airlines (12 Nov-16 Nov).

How far ahead should I book a flight from Region of Ontario to San Diego?

To ensure you get the cheapest price possible for a flight from Region of Ontario to San Diego, you should look to book at least 86 days in advance of your intended travel date. The price of your flight may increase if you delay and leave booking until a week or so before departure.

Related info for your journey

  • What airport do you fly into for flights to San Diego from Ontario?

    San Diego (SAN), located 4.2 km from the city centre, is the airport you fly into when you book flights from Ontario to San Diego.

  • How long is the flight from Region of Ontario to San Diego?

    Departing from Region of Ontario to San Diego will take you 11h 40m. The distance between Region of Ontario and San Diego is about 3798 km. When browsing for deals, the options you’ll see will be for both direct flights and flights with stops.

  • What are the cheapest airlines to fly from Region of Ontario to San Diego one-way?

    To fly one-way, consider booking your trip with United Airlines, which is currently one of the cheapest options available, starting at C$ 237. American Airlines flights start at C$ 250 while deals on Air Canada start at C$ 262 one-way.

  • What are the most popular routes from Region of Ontario to San Diego?

    Most travellers choose Toronto Pearson Intl - San Diego, Toronto Island - San Diego or Montreal Pierre Elliott Trudeau Intl - San Diego when deciding on the best route from Region of Ontario to San Diego.

  • What are the most reliable airlines from Region of Ontario to San Diego?

    The top 3 most reliable airlines when flying from Region of Ontario to San Diego are Air Canada Rouge (74%), United Airlines (72%) and Air Canada (70%).

  • What are the cheapest flights from Region of Ontario to San Diego?

    While on average a flight from Region of Ontario to San Diego is generally C$ 1,082, our data shows the cheapest flight currently is C$ 696. When looking at the most popular route, (Toronto Pearson Intl - San Diego), you can expect to pay C$ 454 for that flight.

  • Can I find deals for flights from Ontario to San Diego that include hotel bookings?

    Yes. In addition to deals on Ontario to San Diego flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Ontario to San Diego?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Ontario to San Diego.

  • Can I find deals for business class flights from Ontario to San Diego?

    Yes. Cheapflights offers flight deals from Ontario to San Diego by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

  • What is the cheapest month to book a flight from Region of Ontario to San Diego?

    Currently, May is the cheapest month in which you can book a flight from Region of Ontario to San Diego (average of C$ 601). Flying from Region of Ontario to San Diego in October is currently the most expensive (average of C$ 783). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

Travelling to a place near San Diego?

Book flights to San Diego if you plan to visit one of these locations
El Cajon
La Mesa
Borrego Springs

Browse thousands of different options on Cheapflights for your next trip

Alternative routes for Ontario to San Diego

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Top 5 airlines flying from Ontario to San Diego

AirlineCheapestAverageFlexibilityOn-time
WestJetCheapestC$ 155AverageC$ 585FlexibilityNo cancel feeOn-time60%
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DeltaCheapestC$ 316AverageC$ 559FlexibilityNo cancel feeOn-timeN/A
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Air CanadaCheapestC$ 378AverageC$ 774FlexibilityNo cancel feeOn-time67%
Search Air Canada flights
American AirlinesCheapestC$ 403AverageC$ 626FlexibilityNo cancel feeOn-time71%
Search American Airlines flights
United AirlinesCheapestC$ 429AverageC$ 690FlexibilityNo cancel feeOn-time69%
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Fly with Cheapflights

How does Cheapflights help users find flights from Ontario to San Diego?

Cheapflights goes through 900+ travel sites to look for the best flight deals for flights from Ontario to San Diego. Too many options? Cheapflights also provides filters for things like airlines, price ranges, and number of stops to help you make a decision easily.

Why should you use Cheapflights to find cheap flight tickets from Ontario to San Diego?

Cheapflights simply makes it quick and affordable to book flights from Ontario to San Diego by bringing together all flight options from hundreds of airlines and agencies online — and put it in one place for you to choose from. Plus, Cheapflights is 100% free to use for all.

Can Cheapflights find flights from Ontario to San Diego with no change fees?

Yes! Cheapflights helps users easily find flights from Ontario to San Diego with no change fees.

Can Cheapflights notify me if prices for flights from Ontario to San Diego become cheaper?

Not ready to book yet? You can track prices for flights from Ontario to San Diego on Cheapflights with our Price Alert feature and get notified when better prices are available.

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