How many flights depart from Region of Ontario to San Diego on average per week?

The number of flights available between Region of Ontario and San Diego is 14 per week as of January 2026. The most frequent departure day is Mon, with 14% of weekly flights leaving on this day.

What is the cheapest airline that flies from Ontario to San Diego?

WestJet, Air Canada, and Alaska Airlines are the most popular carriers operating from Ontario to San Diego

How many flights depart from Region of Ontario to San Diego on average per day?

The number of flights available between Region of Ontario and San Diego is 2 per day as of January 2026. The most frequent departure time is 9:00a.m., with 100% of daily flights leaving at noon.

How long does it take to fly to San Diego?

Flight times from Region of Ontario to San Diego vary, but if you’re flying out of Toronto and flying into San Diego (one of the most popular routes), then the duration is 8h 19m on average. Another popular route from Region of Ontario to San Diego is flying from Ottawa to San Diego, which will take roughly 8h 56m. Keep in mind that layovers or delays could extend your travel time.

Which airlines fly to San Diego?

Air Canada, United Airlines and Porter Airlines are the top three most popular airlines that fly to San Diego from Region of Ontario according to our data. Air Canada is the first choice among our users, with 46% of people opting to fly with this airline when travelling to San Diego. Keep in mind that there are 7 different airlines that fly to San Diego on a routine basis, so you have a few additional options to choose from.

When did momondo last update prices for flights from Ontario to San Diego Airport?

Prices for flights from Ontario to San Diego Airport are updated daily.

How many operators does momondo search for flights from Ontario to San Diego Airport?

The number of operators available for flights from Ontario to San Diego Airport is 7 as of January 2026.

How old do you have to be to fly from Ontario to San Diego Airport?

The minimum age a child must be to fly alone is five but airlines that offer an unaccompanied minor (UNMR) service will have their own age restrictions, including rules around flight length, timings, and stopovers. We always recommend checking with the individual airline you are booking with to travel from Ontario to San Diego Airport.

What documentation or ID do you need to fly to San Diego Airport?

The required travel and health documents for your San Diego Airport trip may vary depending on your itinerary and personal circumstances. As a general rule, you should carry multiple documents, including a national ID card or driver's license and a passport valid for six months after your intended arrival at San Diego Airport. We recommend that you seek guidance from your airline or a reliable third party such as IATA.

C$ 224 Cheap Flights from Ontario to San Diego in 2026

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Find the cheapest flights from Ontario to San Diego

Round-trip

One-way

Last minute

Direct

Cheap round-trip flights

Enter your travel dates to find the best prices.

6:00 a.m. - 1:20 p.m.

YOW

SAN

10h 20m1 stop

2:05 p.m. - 5:28 a.m.

SAN

YOW

12h 23m2 stops

C$ 351WestJet

Mon, 25 May - Mon, 1 Jun

5:15 p.m. - 1:20 p.m.

YOW

SAN

23h 05m2 stops

2:05 p.m. - 5:28 a.m.

SAN

YOW

12h 23m2 stops

C$ 373WestJet

Mon, 25 May - Mon, 1 Jun

12:31 p.m. - 9:59 p.m.

YYZ

SAN

12h 28m1 stop

10:35 p.m. - 12:30 p.m.

SAN

YYZ

10h 55m1 stop

C$ 377American Airlines

Wed, 25 Feb - Wed, 4 Mar

4:44 p.m. - 10:26 p.m.

YYZ

SAN

8h 42m1 stop

9:41 p.m. - 10:19 a.m.

SAN

YYZ

9h 38m1 stop

C$ 379American Airlines

Tue, 27 Jan - Tue, 17 Feb

9:55 a.m. - 12:18 p.m.

YYZ

SAN

5h 23mdirect

7:00 a.m. - 7:58 p.m.

SAN

YYZ

9h 58m1 stop

C$ 380Air Canada

Tue, 26 May - Tue, 2 Jun

2:57 p.m. - 9:25 p.m.

YYZ

SAN

9h 28m1 stop

10:30 p.m. - 8:58 a.m.

SAN

YYZ

7h 28m1 stop

C$ 382United Airlines

Fri, 27 Feb - Sat, 7 Mar

7:45 a.m. - 5:24 p.m.

YOW

SAN

12h 39m1 stop

6:05 p.m. - 6:43 a.m.

SAN

YOW

9h 38m1 stop

C$ 383Air Canada

Mon, 2 Mar - Thu, 5 Mar

6:45 a.m. - 11:38 a.m.

YYZ

SAN

7h 53m1 stop

2:10 p.m. - 11:59 p.m.

SAN

YYZ

6h 49m1 stop

C$ 383United Airlines

Fri, 27 Feb - Tue, 3 Mar

8:00 p.m. - 9:32 a.m.

YYZ

SAN

16h 32m1 stop

8:18 p.m. - 7:36 p.m.

SAN

YYZ

20h 18m2 stops

C$ 391Multiple Airlines

Mon, 9 Feb - Fri, 13 Feb

8:25 a.m. - 5:51 p.m.

YTZ

SAN

12h 26m2 stops

7:35 a.m. - 10:10 p.m.

SAN

YTZ

11h 35m1 stop

C$ 452Multiple Airlines

Thu, 19 Feb - Mon, 23 Feb

United Airlines flights from Region of Ontario to San Diego

Our best United Airlines deals on Region of Ontario to San Diego flight tickets

United Airlines

27 Feb

YYZ2:57 p.m.Toronto Pearson Intl

9h 28m

1 stop

SAN9:25 p.m.San Diego

7 Mar

SAN10:30 p.m.San Diego

7h 28m

1 stop

YYZ8:58 a.m.Toronto Pearson Intl

C$ 382

United Airlines

27 Feb

YYZ6:45 a.m.Toronto Pearson Intl

7h 53m

1 stop

SAN11:38 a.m.San Diego

3 Mar

SAN2:10 p.m.San Diego

6h 49m

1 stop

YYZ11:59 p.m.Toronto Pearson Intl

C$ 383

United Airlines

13 Feb

YYZ9:00 p.m.Toronto Pearson Intl

15h 47m

1 stop

SAN9:47 a.m.San Diego

17 Feb

SAN7:50 p.m.San Diego

8h 40m

1 stop

YYZ7:30 a.m.Toronto Pearson Intl

C$ 384

Alaska Airlines flights from Region of Ontario to San Diego

Our best Alaska Airlines deals on Region of Ontario to San Diego flight tickets

Alaska Airlines

27 Feb

YYZ4:45 p.m.Toronto Pearson Intl

24h 42m

2 stops

SAN2:27 p.m.San Diego

6 Mar

SAN8:26 p.m.San Diego

16h 09m

1 stop

YYZ3:35 p.m.Toronto Pearson Intl

C$ 455

Alaska Airlines

27 Feb

YYZ4:45 p.m.Toronto Pearson Intl

19h 04m

2 stops

SAN8:49 a.m.San Diego

6 Mar

SAN7:26 p.m.San Diego

17h 09m

1 stop

YYZ3:35 p.m.Toronto Pearson Intl

C$ 456

Alaska Airlines

27 Feb

YYZ4:45 p.m.Toronto Pearson Intl

9h 18m

1 stop

SAN11:03 p.m.San Diego

7 Mar

SAN10:29 a.m.San Diego

25h 06m

2 stops

YYZ2:35 p.m.Toronto Pearson Intl

C$ 458

Fly from

Fly to

Route

Depart

Return

Price

OttawaSan Diego

YOW - SAN

YOWSAN

Ottawa

Mon 25/5

6:00 a.m.-1:20 p.m.

1 stop10h 20m

San Diego

Mon 1/6

2:05 p.m.-5:28 a.m.

2 stops12h 23m

C$ 351

OttawaSan Diego

YOW - SAN

YOWSAN

Ottawa

Mon 25/5

5:15 p.m.-1:20 p.m.

2 stops23h 05m

San Diego

Mon 1/6

2:05 p.m.-5:28 a.m.

2 stops12h 23m

C$ 373

TorontoSan Diego

YYZ - SAN

YYZSAN

Toronto Pearson Intl

Wed 25/2

12:31 p.m.-9:59 p.m.

1 stop12h 28m

San Diego

Wed 4/3

10:35 p.m.-12:30 p.m.

1 stop10h 55m

C$ 377

TorontoSan Diego

YYZ - SAN

YYZSAN

Toronto Pearson Intl

Tue 27/1

4:44 p.m.-10:26 p.m.

1 stop8h 42m

San Diego

Tue 17/2

9:41 p.m.-10:19 a.m.

1 stop9h 38m

C$ 379

TorontoSan Diego

YYZ - SAN

YYZSAN

Toronto Pearson Intl

Tue 26/5

9:55 a.m.-12:18 p.m.

Nonstop5h 23m

San Diego

Tue 2/6

7:00 a.m.-7:58 p.m.

1 stop9h 58m

C$ 380

TorontoSan Diego

YYZ - SAN

YYZSAN

Toronto Pearson Intl

Fri 27/2

2:57 p.m.-9:25 p.m.

1 stop9h 28m

San Diego

Sat 7/3

10:30 p.m.-8:58 a.m.

1 stop7h 28m

C$ 382

OttawaSan Diego

YOW - SAN

YOWSAN

Ottawa

Mon 2/3

7:45 a.m.-5:24 p.m.

1 stop12h 39m

San Diego

Thu 5/3

6:05 p.m.-6:43 a.m.

1 stop9h 38m

C$ 383

TorontoSan Diego

YYZ - SAN

YYZSAN

Toronto Pearson Intl

Fri 27/2

6:45 a.m.-11:38 a.m.

1 stop7h 53m

San Diego

Tue 3/3

2:10 p.m.-11:59 p.m.

1 stop6h 49m

C$ 383

TorontoSan Diego

YYZ - SAN

YYZSAN

Toronto Pearson Intl

Mon 9/2

8:00 p.m.-9:32 a.m.

1 stop16h 32m

San Diego

Fri 13/2

8:18 p.m.-7:36 p.m.

2 stops20h 18m

C$ 391

TorontoSan Diego

YTZ - SAN

YTZSAN

Toronto Island

Thu 19/2

8:25 a.m.-5:51 p.m.

2 stops12h 26m

San Diego

Mon 23/2

7:35 a.m.-10:10 p.m.

1 stop11h 35m

C$ 452

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first

How to get the cheapest flight ticket from Region of Ontario to San Diego

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

Prices

Airlines

Other information

What is the cheapest month to fly to San Diego?

In general, April is the cheapest month to fly from Region of Ontario to San Diego. Due to it being the ‘off-season’ during this time, you can expect flight prices to be around C$ 372. If you are unable to visit San Diego during the month of April, then departing from Region of Ontario during the month March is also very affordable. Most momondo users find prices during this month for around C$ 375.

What is the cheapest day to depart on your flight to San Diego?

The cheapest day to depart on your flight to San Diego is on a Wednesday when prices can be found for as low as C$ 402. This is often the case because there is less demand to fly during this day of the week. Be sure to avoid booking your departure on a Saturday as prices are generally higher than usual. According to our data, the average ticket price to San Diego on Saturday is C$ 604.

What is the cheapest time of day to depart on your flight to San Diego?

Flying to San Diego from Region of Ontario in the morning is the least expensive time of day to depart. momondo users have found prices as low as C$ 476 when looking at flights departing in the morning. Flights to San Diego are more costly in the evening, with an average ticket price of C$ 805. Departure times in the evening fall within the peak daily travel times, which is why tickets can be more expensive.

What is the cheapest Ontario to San Diego flight route?

Fly from Toronto Pearson Intl to San Diego for the best Ontario - San Diego flight prices

How far in advance should I book a flight to San Diego?

You are more likely to see cheaper flights to San Diego from Region of Ontario when booking weeks ahead of your departure date. In general, you can expect to find flights to San Diego for around C$ 512 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to San Diego from Region of Ontario for as low as C$ 426 on momondo.

What cabin class options are available on Ontario to San Diego flights?

There are 3 cabin classes available to choose from on Ontario to San Diego flights. Cabin price and availability will vary by airline so perform a search above to find the right deals for you.

Can stopping save me money on Region of Ontario to San Diego flights?

No. A direct flight is the cheapest option for a flight between Region of Ontario to San Diego.

Cheap Region of Ontario to San Diego flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Region of Ontario to San Diego

Best price found	C$ 311
Fastest flight time	5h 15m
Direct flights	Every day
Airports in San Diego	1 airport

The best one-way flight to San Diego from Region of Ontario in the past 72 hours is C$ 311. The best round-trip flight deal from Region of Ontario to San Diego found on momondo in the last 72 hours is C$ 482.

The fastest flight from Region of Ontario to San Diego takes 5h 15m

Direct flights go from Region of Ontario to San Diego every day.

There is 1 airport in San Diego. From Region of Ontario there are direct flights to San Diego (SAN).

Search flight deals

When did momondo last update prices for flights from Ontario to San Diego Airport?
Prices for flights from Ontario to San Diego Airport are updated daily.
How many operators does momondo search for flights from Ontario to San Diego Airport?
The number of operators available for flights from Ontario to San Diego Airport is 7 as of January 2026.
How old do you have to be to fly from Ontario to San Diego Airport?
The minimum age a child must be to fly alone is five but airlines that offer an unaccompanied minor (UNMR) service will have their own age restrictions, including rules around flight length, timings, and stopovers. We always recommend checking with the individual airline you are booking with to travel from Ontario to San Diego Airport.
What documentation or ID do you need to fly to San Diego Airport?
The required travel and health documents for your San Diego Airport trip may vary depending on your itinerary and personal circumstances. As a general rule, you should carry multiple documents, including a national ID card or driver's license and a passport valid for six months after your intended arrival at San Diego Airport. We recommend that you seek guidance from your airline or a reliable third party such as IATA.
What is the most popular plane model from Region of Ontario to San Diego?
momondo data reveals that the most frequently booked plane model on the route from Region of Ontario to San Diego is Airbus A220-300, representing 85.26% of all bookings. The subsequent popular models are Boeing 737 MAX 8 at 7.03%, Airbus A319 at 1.59%, and Boeing 737-800 at 1.36%.

Best airlines flying from Region of Ontario to San Diego

Compare and see reviews for airlines that fly from Region of Ontario to San Diego with momondo

Airline	Rating	Free Cancellation	Price
Air Transat	PriceFrom C$ 238	Free Cancellation	Rating 7.7 491 reviews	Search Air Transat flights
Porter Airlines	PriceFrom C$ 263	Free Cancellation	Rating 8.0 406 reviews	Search Porter Airlines flights
American Airlines	PriceFrom C$ 302	Free Cancellation	Rating 7.2 11,095 reviews	Search American Airlines flights
Air Canada	PriceFrom C$ 325	Free Cancellation	Rating 7.1 10,603 reviews	Search Air Canada flights
WestJet	PriceFrom C$ 332	Free Cancellation	Rating 7.2 3,235 reviews	Search WestJet flights
United Airlines	PriceFrom C$ 339	Free Cancellation	Rating 7.4 9,141 reviews	Search United Airlines flights
Delta	PriceFrom C$ 363	Free Cancellation	Rating 7.9 8,029 reviews	Search Delta flights

El Cajon

Borrego Springs

Chula Vista

Coronado

Why use momondo?

Why should I use momondo to find a flight deal from Ontario to San Diego?

To find the flight that best suits your needs, momondo gathers a range of flights from a large pool of different airlines and agents; you can then use our insights and filters to find and book the right flight to San Diego from Ontario.

Can I find flights from Ontario to San Diego with flexible booking policies on momondo?

momondo does allow users to show only those flights to San Diego from Ontario which offer a flexible booking policy as well as other useful filters and features.

How can momondo help me find flights from Ontario to San Diego?

Once all potential Ontario to San Diego flight options are in front of you, momondo lets you sort and filter flights based on preferences such as airline, price and flight times amongst many other options.

I’m not ready to book a flight from Ontario to San Diego right now. Can momondo alert me if prices change?

If you are simply researching potential flights to San Diego, momondo offers a useful price alert feature which will track prices for flights to San Diego from Ontario and alert you when they change.

An easier way to manage your San Diego trip

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Cheap flights from Ontario to San Diego from C$ 224

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Ontario to San Diego departing on 25/3. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.

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United Airlines flights from Region of Ontario to San Diego

Our best United Airlines deals on Region of Ontario to San Diego flight tickets

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Our best Alaska Airlines deals on Region of Ontario to San Diego flight tickets

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How to get the cheapest flight ticket from Region of Ontario to San Diego

What is the cheapest month to fly to San Diego?

What is the cheapest day to depart on your flight to San Diego?

What is the cheapest time of day to depart on your flight to San Diego?

What is the cheapest Ontario to San Diego flight route?

Fly from Toronto Pearson Intl to San Diego for the best Ontario - San Diego flight prices

How far in advance should I book a flight to San Diego?

What cabin class options are available on Ontario to San Diego flights?

There are 3 cabin classes available to choose from on Ontario to San Diego flights. Cabin price and availability will vary by airline so perform a search above to find the right deals for you.

Can stopping save me money on Region of Ontario to San Diego flights?

No. A direct flight is the cheapest option for a flight between Region of Ontario to San Diego.

What is the cheapest airline that flies from Ontario to San Diego?

WestJet, Air Canada, and Alaska Airlines are the most popular carriers operating from Ontario to San Diego

Which airlines fly to San Diego?

How many flights depart from Region of Ontario to San Diego on average per day?

The number of flights available between Region of Ontario and San Diego is 2 per day as of January 2026. The most frequent departure time is 9:00a.m., with 100% of daily flights leaving at noon.

How many flights depart from Region of Ontario to San Diego on average per week?

The number of flights available between Region of Ontario and San Diego is 14 per week as of January 2026. The most frequent departure day is Mon, with 14% of weekly flights leaving on this day.

How long does it take to fly to San Diego?

Cheap Region of Ontario to San Diego flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Region of Ontario to San Diego

Best price found

Fastest flight time

Direct flights

Airports in San Diego

When did momondo last update prices for flights from Ontario to San Diego Airport?

How many operators does momondo search for flights from Ontario to San Diego Airport?

How old do you have to be to fly from Ontario to San Diego Airport?

What documentation or ID do you need to fly to San Diego Airport?

What is the most popular plane model from Region of Ontario to San Diego?

Best airlines flying from Region of Ontario to San Diego

Compare and see reviews for airlines that fly from Region of Ontario to San Diego with momondo

Travelling to a place near San Diego?

Why use momondo?

Why should I use momondo to find a flight deal from Ontario to San Diego?

Can I find flights from Ontario to San Diego with flexible booking policies on momondo?

How can momondo help me find flights from Ontario to San Diego?

I’m not ready to book a flight from Ontario to San Diego right now. Can momondo alert me if prices change?

An easier way to manage your San Diego trip

We make it super easy to schedule, organize and travel with friends or family. Trips is free — and available to use no matter where you book.

Get notified when prices go down

Daily price changes in your inbox - only with Price Alerts.

Find better results for your trip to the United States

Airports servicing California