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 Ottawa and flying into San Diego (one of the most popular routes), then the duration is 7h 49m on average. Another popular route from Region of Ontario to San Diego is flying from Toronto to San Diego, which will take roughly 8h 01m. Keep in mind that layovers or delays could extend your travel time.

Which airlines fly to San Diego?

Air Canada, Porter Airlines and United 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 49% of people opting to fly with this airline when travelling to San Diego. Keep in mind that there are 9 different airlines that fly to San Diego on a routine basis, so you have a few additional options to choose from.

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 26 per week as of August 2025. The most frequent departure day is Mon, with 15% of weekly flights leaving on this day.

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

WestJet, Air Canada, and United 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 3 per day as of August 2025. The most frequent departure time is 9:00a.m., with 100% of daily flights leaving at noon.

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 9 as of August 2025.

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$ 189 Cheap Flights from Ontario to San Diego in 2025

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Find the cheapest flights from Ontario to San Diego

Round-trip

One-way

Last minute

Direct

Cheap round-trip flights

9:45 a.m. - 11:34 p.m.YYZ-SAN

16h 49m1 stop

6:15 a.m. - 7:58 p.m.SAN-YYZ

10h 43m1 stop

C$ 317

Find Deal

Wed, 17 Sep - Wed, 24 Sep

9:45 a.m. - 11:34 p.m.YYZ-SAN

16h 49m1 stop

1:35 p.m. - 6:52 a.m.SAN-YYZ

14h 17m2 stops

C$ 332

Find Deal

Wed, 17 Sep - Wed, 24 Sep

5:29 p.m. - 9:44 a.m.YUL-SAN

19h 15m1 stop

10:54 p.m. - 3:20 p.m.SAN-YUL

13h 26m1 stop

C$ 430American Airlines

Find Deal

Wed, 27 Aug - Mon, 1 Sep

9:45 a.m. - 7:46 p.m.YUL-SAN

13h 01m2 stops

7:21 p.m. - 10:40 a.m.SAN-YUL

12h 19m2 stops

C$ 433United Airlines

Find Deal

Tue, 26 Aug - Sat, 30 Aug

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

10h 20m1 stop

2:05 p.m. - 6:45 a.m.SAN-YOW

13h 40m1 stop

C$ 438WestJet

Find Deal

Sun, 31 Aug - Sat, 6 Sep

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

10h 20m1 stop

12:35 p.m. - 5:28 a.m.SAN-YKF

13h 53m1 stop

C$ 442WestJet

Find Deal

Sat, 25 Oct - Sun, 2 Nov

7:29 a.m. - 3:25 p.m.YUL-SAN

10h 56m2 stops

10:54 p.m. - 3:20 p.m.SAN-YUL

13h 26m1 stop

C$ 444American Airlines

Find Deal

Wed, 27 Aug - Mon, 1 Sep

6:15 a.m. - 3:50 p.m.YUL-SAN

12h 35m1 stop

8:11 p.m. - 8:16 a.m.SAN-YUL

9h 05m1 stop

C$ 456United Airlines

Find Deal

Wed, 27 Aug - Wed, 10 Sep

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

12h 39m1 stop

6:10 p.m. - 6:43 a.m.SAN-YOW

9h 33m1 stop

C$ 468Air Canada

Find Deal

Tue, 25 Nov - Tue, 2 Dec

6:00 a.m. - 11:38 a.m.YUL-SAN

8h 38m1 stop

12:25 p.m. - 11:22 p.m.SAN-YUL

7h 57m1 stop

C$ 477Air Canada

Find Deal

Sat, 6 Dec - Sat, 13 Dec

Air Canada flights from Region of Ontario to San Diego

Our best Air Canada deals on Region of Ontario to San Diego flight tickets

Air Canada

25 Nov

YOW7:45 a.m.Ottawa

12h 39m

1 stop

SAN5:24 p.m.San Diego

2 Dec

SAN6:10 p.m.San Diego

9h 33m

1 stop

YOW6:43 a.m.Ottawa

C$ 468

Find similar

Air Canada

6 Dec

YUL6:00 a.m.Montreal Pierre Elliott Trudeau Intl

8h 38m

1 stop

SAN11:38 a.m.San Diego

13 Dec

SAN12:25 p.m.San Diego

7h 57m

1 stop

YUL11:22 p.m.Montreal Pierre Elliott Trudeau Intl

C$ 477

Find similar

Air Canada

25 Aug

YUL6:00 a.m.Montreal Pierre Elliott Trudeau Intl

8h 35m

1 stop

SAN11:35 a.m.San Diego

26 Aug

SAN5:00 p.m.San Diego

17h 51m

1 stop

YUL1:51 p.m.Montreal Pierre Elliott Trudeau Intl

C$ 478

Find similar

American Airlines flights from Region of Ontario to San Diego

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

American Airlines

27 Aug

YUL5:29 p.m.Montreal Pierre Elliott Trudeau Intl

19h 15m

1 stop

SAN9:44 a.m.San Diego

1 Sep

SAN10:54 p.m.San Diego

13h 26m

1 stop

YUL3:20 p.m.Montreal Pierre Elliott Trudeau Intl

C$ 430

Find similar

American Airlines

27 Aug

YUL7:29 a.m.Montreal Pierre Elliott Trudeau Intl

10h 56m

2 stops

SAN3:25 p.m.San Diego

1 Sep

SAN10:54 p.m.San Diego

13h 26m

1 stop

YUL3:20 p.m.Montreal Pierre Elliott Trudeau Intl

C$ 444

Find similar

American Airlines

4 Sep

YUL7:25 a.m.Montreal Pierre Elliott Trudeau Intl

13h 19m

1 stop

SAN5:44 p.m.San Diego

13 Sep

SAN6:15 a.m.San Diego

13h 17m

2 stops

YUL10:32 p.m.Montreal Pierre Elliott Trudeau Intl

C$ 508

Find similar

Fly from

Fly to

Route

Depart

Return

Price

TorontoSan Diego

YYZ - SAN

YYZSAN

Toronto Pearson Intl

Wed 17/9

9:45 a.m.-11:34 p.m.

1 stop16h 49m

San Diego

Wed 24/9

6:15 a.m.-7:58 p.m.

1 stop10h 43m

C$ 317

TorontoSan Diego

YYZ - SAN

YYZSAN

Toronto Pearson Intl

Wed 17/9

9:45 a.m.-11:34 p.m.

1 stop16h 49m

San Diego

Wed 24/9

1:35 p.m.-6:52 a.m.

2 stops14h 17m

C$ 332

MontrealSan Diego

YUL - SAN

YULSAN

Montreal Pierre Elliott Trudeau Intl

Wed 27/8

5:29 p.m.-9:44 a.m.

1 stop19h 15m

San Diego

Mon 1/9

10:54 p.m.-3:20 p.m.

1 stop13h 26m

C$ 430

MontrealSan Diego

YUL - SAN

YULSAN

Montreal Pierre Elliott Trudeau Intl

Tue 26/8

9:45 a.m.-7:46 p.m.

2 stops13h 01m

San Diego

Sat 30/8

7:21 p.m.-10:40 a.m.

2 stops12h 19m

C$ 433

OttawaSan Diego

YOW - SAN

YOWSAN

Ottawa

Sun 31/8

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

1 stop10h 20m

San Diego

Sat 6/9

2:05 p.m.-6:45 a.m.

1 stop13h 40m

C$ 438

TorontoSan Diego

YKF - SAN

YKFSAN

Toronto Region of Waterloo Intl

Sat 25/10

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

1 stop10h 20m

San Diego

Sun 2/11

12:35 p.m.-5:28 a.m.

1 stop13h 53m

C$ 442

MontrealSan Diego

YUL - SAN

YULSAN

Montreal Pierre Elliott Trudeau Intl

Wed 27/8

7:29 a.m.-3:25 p.m.

2 stops10h 56m

San Diego

Mon 1/9

10:54 p.m.-3:20 p.m.

1 stop13h 26m

C$ 444

MontrealSan Diego

YUL - SAN

YULSAN

Montreal Pierre Elliott Trudeau Intl

Wed 27/8

6:15 a.m.-3:50 p.m.

1 stop12h 35m

San Diego

Wed 10/9

8:11 p.m.-8:16 a.m.

1 stop9h 05m

C$ 456

OttawaSan Diego

YOW - SAN

YOWSAN

Ottawa

Tue 25/11

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

1 stop12h 39m

San Diego

Tue 2/12

6:10 p.m.-6:43 a.m.

1 stop9h 33m

C$ 468

MontrealSan Diego

YUL - SAN

YULSAN

Montreal Pierre Elliott Trudeau Intl

Sat 6/12

6:00 a.m.-11:38 a.m.

1 stop8h 38m

San Diego

Sat 13/12

12:25 p.m.-11:22 p.m.

1 stop7h 57m

C$ 477

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$ 379. If you are unable to visit San Diego during the month of April, then departing from Region of Ontario during the month February is also very affordable. Most momondo users find prices during this month for around C$ 383.

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$ 415. 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$ 644.

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$ 478 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$ 790. 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$ 487 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$ 430 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?

You could potentially save up to 3% on your flight if you consider stops on a Region of Ontario to San Diego flight.

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$ 189
Fastest flight time	5h 11m
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$ 189. The best round-trip flight deal from Region of Ontario to San Diego found on momondo in the last 72 hours is C$ 317.

The fastest flight from Region of Ontario to San Diego takes 5h 11m

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

There is 1 airport near San Diego: 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 9 as of August 2025.
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 38.27% of all bookings. The subsequent popular models are Embraer 195 E2 at 35.94%, Airbus A320-100/200 at 11.98%, and Boeing 737 MAX 8 at 9.75%.

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
Porter Airlines	PriceFrom C$ 248	Free Cancellation	Rating 8.0 332 reviews	Search Porter Airlines flights
Air Transat	PriceFrom C$ 249	Free Cancellation	Rating 7.7 425 reviews	Search Air Transat flights
American Airlines	PriceFrom C$ 293	Free Cancellation	Rating 7.2 10,000 reviews	Search American Airlines flights
United Airlines	PriceFrom C$ 307	Free Cancellation	Rating 7.4 8,920 reviews	Search United Airlines flights
Air Canada	PriceFrom C$ 315	Free Cancellation	Rating 7.1 9,943 reviews	Search Air Canada flights
Delta	PriceFrom C$ 322	Free Cancellation	Rating 8.0 7,979 reviews	Search Delta flights
WestJet	PriceFrom C$ 331	Free Cancellation	Rating 7.2 3,008 reviews	Search WestJet flights
Alaska Airlines	PriceFrom C$ 404	Free Cancellation	Rating 8.0 10,000 reviews	Search Alaska Airlines flights
WestJet Encore	PriceFrom C$ 700	Free Cancellation	Rating 9.2 5 reviews	Search WestJet Encore flights

Coronado

Chula Vista

El Cajon

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

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.

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Cheap flights from Ontario to San Diego from C$ 189

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 30/8. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.

Big names, great deals

Big names, great deals

Filter for what you want

Filter for what you want

Trusted and free

Trusted and free

Price Alerts

Price Alerts

Find the cheapest flights from Ontario to San Diego

Cheap round-trip flights

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Air Canada flights from Region of Ontario to San Diego

Our best Air Canada deals on Region of Ontario to San Diego flight tickets

American Airlines flights from Region of Ontario to San Diego

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

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

See travel insights to San Diego from

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

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?

You could potentially save up to 3% on your flight if you consider stops on a Region of Ontario to San Diego flight.

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

WestJet, Air Canada, and United 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 3 per day as of August 2025. 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 26 per week as of August 2025. The most frequent departure day is Mon, with 15% 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