Find flights
Deals
When to book
Airlines
FAQs

Cheap flights from Ontario to San Diego from C$ 193

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 10/5. Fares are subject to change and may not be available on all flights or dates of travel.
YYZ — SAN
26 févr. — 5 mars1
1 adult

Cheap flight deals from Ontario to San Diego

Keep the following information in mind while searching for Ontario to San Diego flight deals. Data was last updated 21 février 2025.

Round-trip from

C$ 301

One-way from

C$ 193

Popular in

June

Cheapest in

February

Average price

C$ 406

Good round-trip deal

C$ 347 or less

Good one-way deal

C$ 204 or less
25/2-26/2
  • 25/2-26/2
  • 3 total stops
  • 28h 18m total
  • Ontario to San Diego
Search Deals
WestJet
  • WestJet
  • 10/5
  • 1 total stop
  • 10h 20m total
  • Ontario to San Diego
Search Deals
Highest demand for flights based on searches. 9% potential increase in price (C$ 92 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 1% potential price decrease (C$ 16 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in February 2025
Search Deals
Price to beat on a round-trip flight from Ontario to San Diego.
Search Deals
Price to beat on a one-way flight from Ontario to San Diego.
Search Deals

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 21 février 2025.

mar. 25/28:00 p.m.YYZ - SAN
1 stop16h 01mMultiple Airlines
mer. 26/23:00 p.m.SAN - YYZ
2 stops12h 17mMultiple Airlines
Deal found 19/2C$ 301
mer. 21/59:30 a.m.YYZ - SAN
Nonstop5h 23mAir Canada
dim. 25/51:58 p.m.SAN - YYZ
1 stop7h 00mAir Canada
Deal found 20/2C$ 332
lun. 17/310:20 a.m.YYZ - SAN
Nonstop5h 45mAir Transat
lun. 24/32:05 p.m.SAN - YYZ
Nonstop4h 45mAir Transat
Deal found 20/2C$ 361
mar. 25/36:15 a.m.YOW - SAN
2 stops16h 02mMultiple Airlines
mar. 8/48:07 p.m.SAN - YOW
1 stop17h 38mMultiple Airlines
Deal found 20/2C$ 371
mar. 25/39:25 a.m.YYZ - SAN
Nonstop5h 38mUnited Airlines
mar. 1/48:30 p.m.SAN - YYZ
1 stop7h 06mUnited Airlines
Deal found 20/2C$ 374
sam. 26/48:05 a.m.YUL - SAN
1 stop12h 10mAir Canada
sam. 3/58:10 a.m.SAN - YUL
Nonstop5h 25mAir Canada
Deal found 19/2C$ 375
jeu. 8/54:00 p.m.YUL - SAN
1 stop8h 44mAmerican Airlines
mar. 13/510:39 p.m.SAN - YUL
1 stop10h 05mAmerican Airlines
Deal found 20/2C$ 379
lun. 24/36:45 a.m.YUL - SAN
1 stop9h 20mPorter Airlines
lun. 31/32:05 p.m.SAN - YUL
1 stop7h 30mPorter Airlines
Deal found 20/2C$ 381
ven. 25/47:21 p.m.YYZ - SAN
1 stop7h 02mDelta
lun. 5/510:00 p.m.SAN - YYZ
1 stop7h 55mDelta
Deal found 20/2C$ 382
mer. 19/34:10 p.m.YTZ - SAN
2 stops18h 31mMultiple Airlines
dim. 23/38:07 p.m.SAN - YTZ
2 stops19h 46mMultiple Airlines
Deal found 19/2C$ 385
jeu. 8/54:45 p.m.YUL - SAN
Nonstop6h 00mUnited Airlines
mar. 13/58:10 a.m.SAN - YUL
Nonstop5h 25mUnited Airlines
Deal found 20/2C$ 388
jeu. 21/812:25 p.m.YTZ - SAN
1 stop10h 13mAir Canada
mar. 26/88:10 a.m.SAN - YTZ
1 stop10h 36mAir Canada
Deal found 20/2C$ 391

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 629,999 searches. Data last updated 21 février 2025.

Fly from

Ontario

Fly to

San Diego

Route

Depart

Return

Price

TorontoSan Diego

YYZ - SAN

YYZSAN

Toronto Pearson Intl

ven. 28/3

7:25 p.m.-7:41 a.m.

1 stop15h 16m

San Diego

lun. 31/3

9:19 p.m.-5:55 a.m.

1 stop29h 36m

C$ 301

TorontoSan Diego

YYZ - SAN

YYZSAN

Toronto Pearson Intl

mer. 19/3

10:20 a.m.-1:05 p.m.

Nonstop5h 45m

San Diego

mer. 26/3

2:05 p.m.-9:50 p.m.

Nonstop4h 45m

C$ 322

TorontoSan Diego

YYZ - SAN

YYZSAN

Toronto Pearson Intl

mer. 2/4

9:25 a.m.-11:48 a.m.

Nonstop5h 23m

San Diego

lun. 7/4

12:35 p.m.-8:28 p.m.

Nonstop4h 53m

C$ 332

TorontoSan Diego

YYZ - SAN

YYZSAN

Toronto Pearson Intl

lun. 17/3

10:20 a.m.-1:05 p.m.

Nonstop5h 45m

San Diego

lun. 24/3

2:05 p.m.-9:50 p.m.

Nonstop4h 45m

C$ 361

OttawaSan Diego

YOW - SAN

YOWSAN

Ottawa

mar. 25/3

6:15 a.m.-7:17 p.m.

2 stops16h 02m

San Diego

mar. 8/4

8:07 p.m.-4:45 p.m.

1 stop17h 38m

C$ 371

TorontoSan Diego

YYZ - SAN

YYZSAN

Toronto Pearson Intl

mar. 25/3

9:25 a.m.-12:03 p.m.

Nonstop5h 38m

San Diego

mar. 1/4

8:30 p.m.-6:36 a.m.

1 stop7h 06m

C$ 374

MontrealSan Diego

YUL - SAN

YULSAN

Montreal Pierre Elliott Trudeau Intl

sam. 26/4

8:05 a.m.-5:15 p.m.

1 stop12h 10m

San Diego

sam. 3/5

8:10 a.m.-4:35 p.m.

Nonstop5h 25m

C$ 375

MontrealSan Diego

YUL - SAN

YULSAN

Montreal Pierre Elliott Trudeau Intl

jeu. 8/5

4:00 p.m.-9:44 p.m.

1 stop8h 44m

San Diego

mar. 13/5

10:39 p.m.-11:44 a.m.

1 stop10h 05m

C$ 379

MontrealSan Diego

YUL - SAN

YULSAN

Montreal Pierre Elliott Trudeau Intl

lun. 24/3

6:45 a.m.-1:05 p.m.

1 stop9h 20m

San Diego

lun. 31/3

2:05 p.m.-12:35 a.m.

1 stop7h 30m

C$ 381

TorontoSan Diego

YTZ - SAN

YTZSAN

Toronto Island

mer. 19/3

4:10 p.m.-7:41 a.m.

2 stops18h 31m

San Diego

dim. 23/3

8:07 p.m.-6:53 p.m.

2 stops19h 46m

C$ 385

Flights are sorted by cheapest round-trip flights first.

Deals found on 20/2

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, January is the cheapest month in which you can book a flight from Region of Ontario to San Diego (average of C$ 301). Flying from Region of Ontario to San Diego in April is currently the most expensive (average of C$ 476). 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 21 février 2025.

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.

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 21 février 2025.

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 - 58.0 mm per month. February is typically the wettest month, when rainfall can reach 58.0 mm. July is typically the driest time to visit San Diego when rainfall is around 0.0 mm.

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 22.0 C. Travellers hoping to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 14.0 C).

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 21 février 2025.
See what other customers who have flown with Alaska Airlines, Delta and Porter Airlines from Ontario to San Diego have to say. Users can see the overall rating for each airline as well as how each is rated in terms of entertainment options, comfort, food, crew/service, and boarding process.
Alaska Airlines
8.0
Very good
9,692 reviews
Check prices

Entertainment

7.1

Boarding

8.2

Food

7.1

Comfort

7.9

Overall

8.0

Crew

8.5

Reviews

1 / 20

10.0
Excellent

Seleste,Dec 2024

FAT - SAN

The attention and efficiency of the staff and the good handling of the pilot

Alaska Airlines
8.0
Very good
9,692 reviews
Alaska Airlines
8.0
Very good
9,692 reviews
Check prices

Entertainment

7.1

Boarding

8.2

Food

7.1

Comfort

7.9

Overall

8.0

Crew

8.5

Reviews

1 / 20

10.0
Excellent

Seleste,Dec 2024

FAT - SAN

The attention and efficiency of the staff and the good handling of the pilot

Delta
8.0
Very good
8,220 reviews
Alaska Airlines
8.0
Very good
9,692 reviews
Check prices

Entertainment

7.1

Boarding

8.2

Food

7.1

Comfort

7.9

Overall

8.0

Crew

8.5

Reviews

1 / 20

10.0
Excellent

Seleste,Dec 2024

FAT - SAN

The attention and efficiency of the staff and the good handling of the pilot

Porter Airlines
7.9
Good
276 reviews
Alaska Airlines
8.0
Very good
9,692 reviews
Check prices

Entertainment

7.1

Boarding

8.2

Food

7.1

Comfort

7.9

Overall

8.0

Crew

8.5

Reviews

1 / 20

10.0
Excellent

Seleste,Dec 2024

FAT - SAN

The attention and efficiency of the staff and the good handling of the pilot

Air Transat
7.8
Good
380 reviews
Alaska Airlines
8.0
Very good
9,692 reviews
Check prices

Entertainment

7.1

Boarding

8.2

Food

7.1

Comfort

7.9

Overall

8.0

Crew

8.5

Reviews

1 / 20

10.0
Excellent

Seleste,Dec 2024

FAT - SAN

The attention and efficiency of the staff and the good handling of the pilot

United Airlines
7.4
Good
8,766 reviews
Alaska Airlines
8.0
Very good
9,692 reviews
Check prices

Entertainment

7.1

Boarding

8.2

Food

7.1

Comfort

7.9

Overall

8.0

Crew

8.5

Reviews

1 / 20

10.0
Excellent

Seleste,Dec 2024

FAT - SAN

The attention and efficiency of the staff and the good handling of the pilot

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?

    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.

  • 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 WestJet, which is currently one of the cheapest options available, starting at C$ 193. Air Canada flights start at C$ 202 while deals on Porter Airlines start at C$ 202 one-way.

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

    Most travellers choose Toronto Pearson Intl - San Diego, Montreal Pierre Elliott Trudeau Intl - San Diego or Toronto Island - 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 Porter Airlines (79%), Air Transat (79%) and Air Canada (51%).

  • 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$ 317, our data shows the cheapest flight currently is C$ 183. When looking at the most popular route, (Toronto Pearson Intl - San Diego), you can expect to pay C$ 257 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, January is the cheapest month in which you can book a flight from Region of Ontario to San Diego (average of C$ 301). Flying from Region of Ontario to San Diego in April is currently the most expensive (average of C$ 476). 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 Ontario?

Book flights to Ontario if you plan to visit one of these locations
El Cajon
Borrego Springs

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.
Pearson Intl to Las Vegas flights
Vancouver Intl to Las Vegas flights
Pearson Intl to Los Angeles flights
Vancouver Intl to Los Angeles flights
Pierre Elliott Trudeau Intl to Las Vegas flights
Pearson Intl to San Francisco flights
Vancouver Intl to San Francisco flights
Toronto Island to Las Vegas flights
Pierre Elliott Trudeau Intl to Los Angeles flights
Vancouver Intl to Palm Springs flights
Abbotsford to Las Vegas flights
Vancouver Intl to San Diego flights
Vancouver Intl to Ontario flights
Calgary to Las Vegas flights
Vancouver Intl to Santa Ana flights
Winnipeg to Las Vegas flights
Calgary to Los Angeles flights
Abbotsford to Los Angeles flights
Edmonton to Las Vegas flights
Pearson Intl to San Diego flights
Edmonton to Los Angeles flights
Pierre Elliott Trudeau Intl to San Francisco flights
Pearson Intl to Ontario flights
Region of Waterloo Intl to Las Vegas flights
Toronto Island to Los Angeles flights
Abbotsford to San Francisco flights
Calgary to San Francisco flights
Ottawa to Las Vegas flights
Vancouver Intl to Sacramento flights
Pearson Intl to Palm Springs flights
Abbotsford to Palm Springs flights
Pearson Intl to San Jose flights
Edmonton to Palm Springs flights
Edmonton to San Francisco flights
Québec City to Las Vegas flights
Winnipeg to Los Angeles flights
Calgary to Ontario flights
Toronto Island to San Francisco flights
Pierre Elliott Trudeau Intl to Ontario flights
Hamilton to Las Vegas flights
Victoria to Las Vegas flights
Calgary to Santa Ana flights
Region of Waterloo Intl to Los Angeles flights
Calgary to Palm Springs flights
Pierre Elliott Trudeau Intl to San Diego flights
Kelowna to Las Vegas flights
Edmonton to Ontario flights
Region of Waterloo Intl to San Francisco flights
Calgary to San Diego flights
Ottawa to Los Angeles flights

Top 8 airlines flying from Ontario to San Diego

Discover the top 8 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 629,999 searches. Data last updated 21 février 2025.
AirlineCheapestAverageFlexibilityOn-time
Porter AirlinesCheapestC$ 257AverageC$ 515FlexibilityNo cancel feeOn-time52%
Search Porter Airlines flights
Air TransatCheapestC$ 307AverageC$ 438FlexibilityNo cancel feeOn-time50%
Search Air Transat flights
American AirlinesCheapestC$ 311AverageC$ 547FlexibilityNo cancel feeOn-time71%
Search American Airlines flights
United AirlinesCheapestC$ 332AverageC$ 673FlexibilityNo cancel feeOn-time69%
Search United Airlines flights
WestJetCheapestC$ 332AverageC$ 592FlexibilityNo cancel feeOn-time60%
Search WestJet flights
Air CanadaCheapestC$ 348AverageC$ 750FlexibilityNo cancel feeOn-time67%
Search Air Canada flights
DeltaCheapestC$ 370AverageC$ 545FlexibilityNo cancel feeOn-timeN/A
Search Delta flights
Alaska AirlinesCheapestC$ 416AverageC$ 918FlexibilityNo cancel feeOn-time75%
Search Alaska Airlines flights

Fly with Cheapflights

Find the best flight deals on Cheapflights, where travelers can enjoy low prices and a wide availability of flights to their desired destinations.

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.

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.