Find flights
Deals
When to book
Airlines
FAQs

Cheap flights from San Diego to Ontario from C$ 211

SAN — YYZ
24 Nov — 1 Dec1
1 adult
1 adult, Economy, 0 bags

Cheap flight deals from San Diego to Ontario

Enter your travel dates to find the best prices.

Cheapest flights from San Diego to Ontario

Tue 1/127:51 p.m. -
1 stop22h 51m
Tue 8/129:55 a.m. -
2 stops35h 21m
Deal found 21/10C$ 472
Wed 2/127:51 p.m. -
1 stop22h 51m
Wed 9/129:55 a.m. -
2 stops35h 21m
Deal found 22/10C$ 480
Fri 13/118:20 p.m. -
1 stop17h 56m
Thu 19/119:50 a.m. -
1 stop11h 48m
Deal found 24/10C$ 483
Thu 19/1110:29 p.m. -
1 stop29h 22m
Sat 21/118:30 p.m. -
1 stop14h 25m
Deal found 24/10C$ 485
Fri 20/118:50 a.m. -
1 stop19h 01m
Wed 25/119:50 a.m. -
1 stop27h 36m
Deal found 23/10C$ 487
Wed 2/127:12 a.m. -
1 stop11h 30m
Thu 3/129:50 a.m. -
1 stop11h 20m
Deal found 20/10C$ 489
Fri 20/118:50 a.m. -
1 stop19h 01m
Mon 23/118:30 p.m. -
1 stop14h 25m
Deal found 23/10C$ 490
Fri 13/118:20 p.m. -
1 stop17h 56m
Fri 20/118:30 p.m. -
1 stop14h 25m
Deal found 24/10C$ 492
Thu 12/118:20 p.m. -
1 stop7h 31m
Sun 22/118:30 p.m. -
1 stop14h 25m
Deal found 23/10C$ 493
Thu 3/127:12 a.m. -
1 stop11h 30m
Mon 7/128:30 p.m. -
1 stop14h 32m
Deal found 22/10C$ 497
Wed 2/127:12 a.m. -
1 stop11h 30m
Sat 5/128:30 p.m. -
1 stop14h 32m
Deal found 20/10C$ 503
Thu 12/118:20 p.m. -
3 stops20h 35m
Mon 16/119:10 a.m. -
2 stops17h 47m
Deal found 20/10C$ 604

Find flight deals from San Diego to Ontario

Round-trip from

C$ 472

One-way from

C$ 211

Popular in

August

Cheapest in

January

Average price

C$ 941

Good round-trip deal

C$ 346 or less

Good one-way deal

C$ 465 or less
1/12-8/12
  • 1/12-8/12
  • 3 total stops
  • 58h 12m total
  • San Diego to Ontario
Search Deals
6/12-31/12
  • 6/12-31/12
  • 1 total stop
  • 22h 51m total
  • San Diego to Ontario
Search Deals
Highest demand for flights based on searches. 3% potential increase in price (C$ 38 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 1% potential price decrease (C$ 20 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in October 2026
Search Deals
Price to beat on a round-trip flight from San Diego to Ontario.
Search Deals
Price to beat on a one-way flight from San Diego to Ontario.
Search Deals

Cheapflights Fare Finder

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

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

San DiegoOttawa

SAN San Diego - YOW Ottawa

SANYOW

San Diego

Wed 2/12

2:21 p.m.-5:15 p.m.

2 stops23h 54m

Ottawa

Wed 31/12

12:00 a.m.-9:00 p.m.

Nonstop0h 00m

C$ 304

San DiegoToronto

SAN San Diego - YTZ Toronto Island

SANYTZ

San Diego

Mon 23/11

8:43 p.m.-6:29 p.m.

1 stop18h 46m

Toronto Island

Wed 31/12

12:00 a.m.-9:00 p.m.

Nonstop0h 00m

C$ 335

San DiegoToronto

SAN San Diego - YTZ Toronto Island

SANYTZ

San Diego

Sun 24/1

8:37 p.m.-12:52 p.m.

3 stops37h 15m

Toronto Island

Wed 31/12

12:00 a.m.-9:00 p.m.

Nonstop0h 00m

C$ 343

San DiegoOttawa

SAN San Diego - YOW Ottawa

SANYOW

San Diego

Tue 12/1

10:48 a.m.-12:07 a.m.

1 stop10h 19m

Ottawa

Wed 31/12

12:00 a.m.-9:00 p.m.

Nonstop0h 00m

C$ 343

San DiegoOttawa

SAN San Diego - YOW Ottawa

SANYOW

San Diego

Tue 1/12

7:51 p.m.-5:56 p.m.

2 stops43h 05m

Ottawa

Wed 31/12

12:00 a.m.-9:00 p.m.

Nonstop0h 00m

C$ 346

San DiegoOttawa

SAN San Diego - YOW Ottawa

SANYOW

San Diego

Tue 1/12

9:45 p.m.-3:07 p.m.

1 stop14h 22m

Ottawa

Wed 31/12

12:00 a.m.-9:00 p.m.

Nonstop0h 00m

C$ 357

San DiegoOttawa

SAN San Diego - YOW Ottawa

SANYOW

San Diego

Thu 17/12

6:36 a.m.-11:40 p.m.

3 stops38h 04m

Ottawa

Wed 31/12

12:00 a.m.-9:00 p.m.

Nonstop0h 00m

C$ 360

San DiegoToronto

SAN San Diego - YTZ Toronto Island

SANYTZ

San Diego

Sat 13/2

8:00 a.m.-9:06 p.m.

1 stop10h 06m

Toronto Island

Wed 31/12

12:00 a.m.-9:00 p.m.

Nonstop0h 00m

C$ 377

San DiegoToronto

SAN San Diego - YYZ Toronto Pearson Intl

SANYYZ

San Diego

Thu 11/2

7:30 a.m.-12:29 a.m.

1 stop13h 59m

Toronto Pearson Intl

Wed 31/12

12:00 a.m.-9:00 p.m.

Nonstop0h 00m

C$ 392

San DiegoToronto

SAN San Diego - YYZ Toronto Pearson Intl

SANYYZ

San Diego

Tue 29/12

5:33 p.m.-4:05 p.m.

2 stops19h 32m

Toronto Pearson Intl

Wed 31/12

12:00 a.m.-9:00 p.m.

Nonstop0h 00m

C$ 410

Flights are sorted by cheapest round-trip flights first.

Deals found on 21/10

Showing 1-10 of 49 resultsSorted by cheapest first
1
2
3
...
5

Best time to book a flight from San Diego to Ontario

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

Cheapflights Insights

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

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

Currently, March is the cheapest month in which you can book a flight from San Diego to Region of Ontario (average of C$ 608). Flying from San Diego to Region of Ontario in August is currently the most expensive (average of C$ 941). 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 SAN to ON?

When flying from San Diego to Region of Ontario, 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 San Diego to Region of Ontario?

Airfare is below average for this route at the moment.
San Diego to Region of Ontario flights typically cost between C$ 717 and C$ 1,807 in December.
The cheapest round-trip price found within the last 5 days was C$ 472 on Multiple Airlines (1 Dec-8 Dec).

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

The price you pay for your flight from San Diego to Region of Ontario may vary depending on when you book. For the best chance of a lower fare, look to book 65 days in advance of your trip. Fares are likely to increase a fortnight or so before your departure date.

Reviews of airlines servicing Ontario

Read reviews from past customers who have flown Delta,United Airlines, andAir Canada from San Diego to Ontario. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
Delta
7.8
Good
8,678 reviews
Check prices

Comfort

7.8

Crew

8.5

Overall

7.8

Entertainment

7.8

Boarding

8.1

Food

7.2

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.
Delta
7.8
Good
8,678 reviews
Delta
7.8
Good
8,678 reviews
Check prices

Comfort

7.8

Crew

8.5

Overall

7.8

Entertainment

7.8

Boarding

8.1

Food

7.2

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.
United Airlines
7.3
Good
10,436 reviews
Delta
7.8
Good
8,678 reviews
Check prices

Comfort

7.8

Crew

8.5

Overall

7.8

Entertainment

7.8

Boarding

8.1

Food

7.2

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.
Air Canada
7.1
Good
11,811 reviews
Delta
7.8
Good
8,678 reviews
Check prices

Comfort

7.8

Crew

8.5

Overall

7.8

Entertainment

7.8

Boarding

8.1

Food

7.2

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.

Related info for your journey

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

    Most people fly from San Diego (SAN) if they book a flight from San Diego to Ontario. San Diego is conveniently located just 4.2 km from San Diego’s city centre.

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

    Alaska Airlines and United Airlines can get you from San Diego to Region of Ontario in just under 15h 28m. Your travel time can differ by up to 3h 32m. San Diego and Region of Ontario are separated by a distance of 3798 km. Both multi-stop and direct flights can be found to your destination and back.

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

    To fly one-way, consider booking your trip with Delta, which is currently one of the cheapest options available, starting at C$ 199. United Airlines flights start at C$ 205 while deals on Air Canada start at C$ 264 one-way.

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

    The most popular route from San Diego to Region of Ontario is San Diego - Toronto Pearson Intl. You may also consider San Diego - Toronto Island or San Diego - Montreal Pierre Elliott Trudeau Intl.

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

    Consider Air Canada Rouge (78%), United Airlines (77%) or Air Canada (75%) when booking your flight. These represent the most reliable airlines when flying from San Diego to Region of Ontario.

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

    While on average a flight from San Diego to Region of Ontario is generally C$ 777, our data shows the cheapest flight currently is C$ 329. When looking at the most popular route, (San Diego - Toronto Pearson Intl), you can expect to pay C$ 412 for that flight.

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

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

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

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

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

    Yes. Cheapflights offers flight deals from San Diego to Ontario 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 San Diego to Region of Ontario?

    Currently, March is the cheapest month in which you can book a flight from San Diego to Region of Ontario (average of C$ 608). Flying from San Diego to Region of Ontario in August is currently the most expensive (average of C$ 941). 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

Alternative routes for San Diego to Ontario

Los Angeles to Vancouver Intl flights
San Francisco to Vancouver Intl flights
Los Angeles to Pearson Intl flights
San Francisco to Pearson Intl flights
Los Angeles to Calgary flights
Los Angeles to Pierre Elliott Trudeau Intl flights
San Diego to Vancouver Intl flights
San Francisco to Calgary flights
San Francisco to Pierre Elliott Trudeau Intl flights
Sacramento to Vancouver Intl flights
San Diego to Pearson Intl flights
Los Angeles to Abbotsford flights
San Francisco to Abbotsford flights
Santa Ana to Vancouver Intl flights
Ontario to Vancouver Intl flights
San Diego to Calgary flights
Ontario to Pearson Intl flights
Las Vegas to Vancouver Intl flights
San Francisco to Toronto Island flights
Las Vegas to Calgary flights
Los Angeles to Toronto Island flights
Las Vegas to Pearson Intl flights
Palm Springs to Vancouver Intl flights
San Jose to Vancouver Intl flights
Ontario to Calgary flights
Los Angeles to Edmonton flights
San Jose to Pearson Intl flights
Oakland to Vancouver Intl flights
Santa Ana to Calgary flights
Los Angeles to Hamilton flights
Ontario to Pierre Elliott Trudeau Intl flights
Los Angeles to Québec City flights
Sacramento to Pearson Intl flights
San Francisco to Hamilton flights
Las Vegas to Pierre Elliott Trudeau Intl flights
Burbank to Vancouver Intl flights
San Diego to Pierre Elliott Trudeau Intl flights
Burbank to Pearson Intl flights
Los Angeles to Ottawa flights
San Francisco to Edmonton flights
Long Beach to Calgary flights
Fresno to Vancouver Intl flights
Santa Ana to Pearson Intl flights
San Diego to Abbotsford flights
San Francisco to Québec City flights
Los Angeles to Halifax flights
San Francisco to Victoria flights

Top 3 airlines flying from San Diego to Ontario

AirlineCheapestAverageFlexibilityOn-time
DeltaCheapestC$ 334AverageC$ 874FlexibilityNo cancel feeOn-timeN/A
Search Delta flights
Air CanadaCheapestC$ 435AverageC$ 858FlexibilityNo cancel feeOn-time67%
Search Air Canada flights
United AirlinesCheapestC$ 451AverageC$ 950FlexibilityNo cancel feeOn-time69%
Search United Airlines flights

Fly with Cheapflights

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

Cheapflights makes it easy to find San Diego to Ontario flights by helping our users search from 900+ travel sites for deals. We also provide you with filters for cabin, price, airline, airports, number of stops, and many more to narrow down that perfect flight.

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

By finding flights from multiple airlines and providers at completely no cost, Cheapflights helps millions of users like you annually find the best flights to Ontario from San Diego.

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

Yes, we can. To see specific flights from San Diego to Ontario with no change fees, users can toggle flexible booking options after using the search form above to find flights.

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

Not ready to book yet? You can track prices for flights from San Diego to Ontario 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.