San Diego

$147+ Cheap flights from Ontario to San Diego (SAN)

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 1/11. Fares are subject to change and may not be available on all flights or dates of travel.
YYZ — SAN
Dec 24 — Dec 311
We work with more than 300 partners to bring you better travel deals

Find cheap flights from Ontario to San Diego with Cheapflights

1. Tell us where you want to go
Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”
2. Select your favorite providers
We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.
3. Compare prices and book
Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.

Cheap flight deals from Ontario to San Diego

Discover tips and strategies to find the most affordable flight options for your journey from Ontario (CAON) to San Diego (SAN). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated December 19, 2024.

Round-trip from

$194
(Kiwi.com)

One-way from

$147
(Mytrip)
From Ontario to San Diego
One-way flight from Ontario to San Diego

Find flight deals from Ontario to San Diego

Cheapest flights from Ontario to San Diego
Explore the most affordable flight options available from Ontario to San Diego. Find the lowest fares from popular airlines and budget airlines, with prices last updated on December 19, 2024.

This oojo deal was found by Cheapflights users on 12/18. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/2410:35 pmYYZ - SAN
1 stop16h 10mWestJet
Sat 1/1112:35 pmSAN - YYZ
1 stop25h 53mWestJet
Deal found 12/18$404
This Kiwi.com deal was found by Cheapflights users on 12/18. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/2410:35 pmYYZ - SAN
1 stop16h 10mMultiple Airlines
Tue 12/317:16 pmSAN - YYZ
2 stops33h 04mMultiple Airlines
Deal found 12/18$482
This Kiwi.com deal was found by Cheapflights users on 12/18. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/265:35 pmYUL - SAN
1 stop18h 41mMultiple Airlines
Fri 1/33:40 pmSAN - YUL
1 stop21h 55mMultiple Airlines
Deal found 12/18$540
This FlightHub deal was found by Cheapflights users on 12/18. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/2510:20 amYYZ - SAN
Nonstop5h 45mPorter Airlines
Wed 1/12:05 pmSAN - YYZ
Nonstop4h 45mPorter Airlines
Deal found 12/18$543
This Porter Airlines deal was found by Cheapflights users on 12/19. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Porter Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 12/306:45 amYUL - SAN
1 stop9h 20mPorter Airlines
Mon 1/132:05 pmSAN - YUL
1 stop7h 25mPorter Airlines
Deal found 12/19$589
This Kiwi.com deal was found by Cheapflights users on 12/18. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 12/286:15 amYOW - SAN
2 stops54h 01mMultiple Airlines
Sun 1/59:10 pmSAN - YOW
1 stop16h 35mMultiple Airlines
Deal found 12/18$618
This United Airlines deal was found by Cheapflights users on 12/19. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 12/308:05 amYUL - SAN
2 stops17h 24mUnited Airlines
Mon 1/137:43 pmSAN - YUL
2 stops15h 33mUnited Airlines
Deal found 12/19$624
This American Airlines deal was found by Cheapflights users on 12/19. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 12/286:20 pmYYZ - SAN
1 stop8h 20mAmerican Airlines
Sat 1/116:40 amSAN - YYZ
1 stop7h 55mAmerican Airlines
Deal found 12/19$635
This Delta deal was found by Cheapflights users on 12/18. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 12/271:00 pmYUL - SAN
1 stop12h 32mDelta
Tue 12/314:06 pmSAN - YUL
2 stops28h 03mDelta
Deal found 12/18$654
This American Airlines deal was found by Cheapflights users on 12/18. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 12/2312:55 pmYUL - SAN
2 stops11h 47mAmerican Airlines
Tue 1/710:45 pmSAN - YUL
1 stop13h 40mAmerican Airlines
Deal found 12/18$692
This Air Transat deal was found by Cheapflights users on 12/19. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Air Transat is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 12/3010:20 amYYZ - SAN
Nonstop5h 45mAir Transat
Sun 1/52:05 pmSAN - YYZ
Nonstop4h 45mAir Transat
Deal found 12/19$706
This Air Canada deal was found by Cheapflights users on 12/19. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 12/298:25 pmYTZ - SAN
2 stops22h 23mAir Canada
Sat 1/117:43 pmSAN - YTZ
2 stops23h 07mAir Canada
Deal found 12/19$710

Find flights from Ontario to San Diego within your budget

Customize your flight search to find flights from Ontario to San Diego that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated December 19, 2024.

Fly from

Any airport

Fly to

Any airport

Route

Depart

Return

Price

TorontoSan Diego

YYZ - SAN

YYZSAN

Toronto Pearson Intl

Sun 1/19

10:20 am-1:05 pm

Nonstop5h 45m

San Diego

Mon 1/20

2:05 pm-9:50 pm

Nonstop4h 45m

$194

TorontoSan Diego

YYZ - SAN

YYZSAN

Toronto Pearson Intl

Wed 1/15

10:20 am-1:05 pm

Nonstop5h 45m

San Diego

Wed 1/22

12:35 pm-12:26 am

1 stop8h 51m

$202

TorontoSan Diego

YYZ - SAN

YYZSAN

Toronto Pearson Intl

Sun 1/19

9:25 am-12:03 pm

Nonstop5h 38m

San Diego

Fri 1/24

7:43 pm-6:43 am

1 stop8h 00m

$221

TorontoSan Diego

YYZ - SAN

YYZSAN

Toronto Pearson Intl

Sat 1/18

11:46 am-8:05 pm

2 stops11h 19m

San Diego

Tue 1/21

9:55 pm-11:05 am

1 stop10h 10m

$227

TorontoSan Diego

YYZ - SAN

YYZSAN

Toronto Pearson Intl

Fri 1/17

10:05 pm-11:45 am

2 stops16h 40m

San Diego

Wed 1/22

12:35 pm-6:00 am

2 stops14h 25m

$248

OttawaSan Diego

YOW - SAN

YOWSAN

Ottawa

Mon 2/24

5:00 pm-10:30 pm

1 stop8h 30m

San Diego

Wed 2/26

4:00 pm-4:57 am

1 stop9h 57m

$249

OttawaSan Diego

YOW - SAN

YOWSAN

Ottawa

Wed 2/19

6:20 am-1:05 pm

1 stop9h 45m

San Diego

Wed 2/26

2:05 pm-12:40 am

1 stop7h 35m

$251

OttawaSan Diego

YOW - SAN

YOWSAN

Ottawa

Mon 1/20

5:00 pm-10:30 pm

1 stop8h 30m

San Diego

Fri 1/24

9:30 pm-2:29 pm

1 stop13h 59m

$255

TorontoSan Diego

YYZ - SAN

YYZSAN

Toronto Pearson Intl

Thu 1/16

5:00 pm-11:58 pm

1 stop9h 58m

San Diego

Tue 1/21

7:25 am-7:09 pm

1 stop8h 44m

$263

OttawaSan Diego

YOW - SAN

YOWSAN

Ottawa

Thu 4/10

8:10 pm-11:46 am

2 stops18h 36m

San Diego

Wed 4/16

12:35 pm-12:44 am

1 stop9h 09m

$267

Flights are sorted by cheapest round-trip flights first.

Deals found on 12/17

Showing 1-10 of 50 results
1
2
3
...
5

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
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Travel insights for flights from Ontario to San Diego

Get recent, data-driven insights about flights from Ontario to San Diego including ideal travel times, pricing trends, and more.

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

Currently, September is the cheapest month in which you can book a flight from Region of Ontario to San Diego (average of $266). Flying from Region of Ontario to San Diego in March is currently the most expensive (average of $339). 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?

Find hourly flight availability from Ontario to San Diego. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated December 19, 2024.

Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from Region of Ontario to San Diego as you normally would.

Weekly flight availability from Region of Ontario to San Diego

Explore weekly flight availability from Ontario to San Diego. Discover flights operating on different days of the week, giving you the flexibility to choose a travel day that best fits your plans. Compare info to find the most convenient option for your journey. Data last updated December 19, 2024.

The most flights from CAON to SAN are scheduled on a Monday (4 on average). You will have fewer flight options on Tuesday, which is when the least amount of flights are scheduled (2 on average).

Rainfall in San Diego by month

Plan your trip to San Diego by taking into account the average rainfall totals by month.

In terms of precipitation, rainfall in San Diego ranges from 0.0 - 2.3 inches per month. February is typically the wettest month, when rainfall can reach 2.3 in. July is typically the driest time to visit San Diego when rainfall is around 0.0 in.

Temperature in San Diego by month

Plan your trip to San Diego by taking into account the average temperature totals by month.

If weather is an important factor for your trip to San Diego, use this chart to help with planning. For those seeking warmer temperatures, August is the ideal time of year to visit, when temperatures reach an average of 71.6 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 57.2 F).

Reviews of airlines servicing San Diego

Get insights into the airlines that provide service to San Diego. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to San Diego. Reviews last updated December 19, 2024.
See what other customers who have flown with Porter Airlines, Air Canada and American Airlines from Ontario to San Diego have to say. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
8.0
Very good
9,551 reviews

Comfort

7.9

Food

7.2

Crew

8.5

Boarding

8.2

Overall

8.0

Entertainment

7.1

Reviews

1 / 10

Things were good, crew was good. It was just the flight itself was very rough. Lots of turbulence, probably one of the shakiest flights I've been on. Kids throwing up, kids crying everywhere because of it.

8.0
Very good
9,551 reviews
8.0
Very good
9,551 reviews

Comfort

7.9

Food

7.2

Crew

8.5

Boarding

8.2

Overall

8.0

Entertainment

7.1

Reviews

1 / 10

Things were good, crew was good. It was just the flight itself was very rough. Lots of turbulence, probably one of the shakiest flights I've been on. Kids throwing up, kids crying everywhere because of it.

8.0
Very good
8,600 reviews
8.0
Very good
9,551 reviews

Comfort

7.9

Food

7.2

Crew

8.5

Boarding

8.2

Overall

8.0

Entertainment

7.1

Reviews

1 / 10

Things were good, crew was good. It was just the flight itself was very rough. Lots of turbulence, probably one of the shakiest flights I've been on. Kids throwing up, kids crying everywhere because of it.

7.9
Good
283 reviews
8.0
Very good
9,551 reviews

Comfort

7.9

Food

7.2

Crew

8.5

Boarding

8.2

Overall

8.0

Entertainment

7.1

Reviews

1 / 10

Things were good, crew was good. It was just the flight itself was very rough. Lots of turbulence, probably one of the shakiest flights I've been on. Kids throwing up, kids crying everywhere because of it.

7.8
Good
388 reviews
8.0
Very good
9,551 reviews

Comfort

7.9

Food

7.2

Crew

8.5

Boarding

8.2

Overall

8.0

Entertainment

7.1

Reviews

1 / 10

Things were good, crew was good. It was just the flight itself was very rough. Lots of turbulence, probably one of the shakiest flights I've been on. Kids throwing up, kids crying everywhere because of it.

7.6
Good
788 reviews
8.0
Very good
9,551 reviews

Comfort

7.9

Food

7.2

Crew

8.5

Boarding

8.2

Overall

8.0

Entertainment

7.1

Reviews

1 / 10

Things were good, crew was good. It was just the flight itself was very rough. Lots of turbulence, probably one of the shakiest flights I've been on. Kids throwing up, kids crying everywhere because of it.

Related info for your journey

Find useful and relevant information for your journey from Ontario to San Diego. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.
  • What airport do you fly into for flights to San Diego from Ontario?

    Most people fly into San Diego (SAN) if they book a flight to San Diego from Ontario. San Diego is conveniently located just 2.6 mi from San Diego’s city center.

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

    The cheapest airline one-way is Porter Airlines, with whom users have recently found tickets for as low as $152. However, be on the lookout for offers from Air Canada and United Airlines, as they are both options that can get you from Region of Ontario to San Diego for a low price.

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

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

    Looking for the most reliable airlines to get you to your destination on time? Our data shows these are most likely to get you from Region of Ontario to San Diego on time: Porter Airlines (75%), Air Transat (75%), Air Canada (74%).

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

    On average you can expect to pay $310 for a flight from Region of Ontario to San Diego. The cheapest flight overall is $118 while the most popular route, (Toronto Pearson Intl - San Diego) is currently priced at $177.

  • 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, September is the cheapest month in which you can book a flight from Region of Ontario to San Diego (average of $266). Flying from Region of Ontario to San Diego in March is currently the most expensive (average of $339). 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

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Alternative routes for Ontario to San Diego

See prices for flight routes from nearby airports that may be better suited for you.

Top 6 airlines flying from Ontario to San Diego

Discover the top 6 airlines that operate flights from Ontario to San Diego. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated December 19, 2024.
AirlineCheapestAverageFlexibilityOn-time
Porter AirlinesCheapest$119Average$210FlexibilityNo cancel feeOn-time52%
Air CanadaCheapest$204Average$618FlexibilityNo cancel feeOn-time67%
Air TransatCheapest$234Average$566FlexibilityNo cancel feeOn-time50%
United AirlinesCheapest$262Average$570FlexibilityNo cancel feeOn-time69%
DeltaCheapest$291Average$540FlexibilityNo cancel feeOn-timeN/A
American AirlinesCheapest$359Average$568FlexibilityNo cancel feeOn-time71%
100% Free
Cheapflights is completely free to use, so you can start saving the moment you arrive.
Book with Flexibility
Our users can plan ahead with confidence and find flights with no change fees
Travel Smart
Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.