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

As of March 2026, there are 1 flights per day flying from San Diego to Region of Ontario. The most common time of day flights depart is 12:00p.m., with 100% of flights taking off in the afternoon.

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

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

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

As of March 2026, 8 flights take off from San Diego and land in Region of Ontario each week. The most common flight departure day for this route is Wed, with 25% of weekly flights taking off on this day.

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

Prices for flights from San Diego Airport to Ontario were last updated today.

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

The number of operators available for flights from San Diego Airport to Ontario is 2 as of March 2026.

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

The minimum age for a child to fly alone is five, but airlines that offer an unaccompanied minor (UNMR) service may have their own age limitations. Flight duration, scheduling, and layovers are among the considerations that may influence age limits. We recommend that you double-check with the airline you are booking with for travel from San Diego Airport to Ontario.

What documentation or ID do you need to fly to Ontario?

The travel and health documents you'll need for your trip to Ontario may differ based on your itinerary and personal situation. Typically, you should have several documents on hand, such as a national ID card or driver's license and a passport that is valid for six months after your intended arrival at Ontario. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.

C$ 197 Cheap Flights from San Diego to Ontario in 2026

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Round-trip

One-way

Last minute

Direct

Cheap round-trip flights

Enter your travel dates to find the best prices.

4:55 p.m. - 9:54 a.m.

SAN

YUL

13h 59m

2 stops

5:45 p.m. - 8:43 p.m.

YUL

SAN

5h 58mdirect

C$ 403Air Canada

Sat, 2 May - Fri, 8 May

4:55 p.m. - 9:54 a.m.

SAN

YUL

13h 59m

2 stops

5:45 p.m. - 8:43 p.m.

YUL

SAN

5h 58mdirect

C$ 404Air Canada

Sat, 2 May - Fri, 8 May

7:00 a.m. - 3:31 p.m.

SAN

YUL

5h 31mdirect

5:45 p.m. - 8:43 p.m.

YUL

SAN

5h 58mdirect

C$ 405Air Canada

Sat, 2 May - Fri, 8 May

4:55 p.m. - 9:54 a.m.

SAN

YUL

13h 59m

2 stops

7:00 a.m. - 12:18 p.m.

YUL

SAN

8h 18m

1 stop

C$ 414Air Canada

Sat, 2 May - Fri, 8 May

2:12 p.m. - 7:36 p.m.

SAN

YYZ

26h 24m

2 stops

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

YYZ

SAN

28h 49m

1 stop

C$ 443Multiple Airlines

Tue, 14 Apr - Tue, 28 Apr

10:07 p.m. - 8:09 p.m.

SAN

YYZ

19h 02m

1 stop

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

YYZ

SAN

14h 17m

1 stop

C$ 447Multiple Airlines

Wed, 27 May - Mon, 1 Jun

10:40 p.m. - 1:59 p.m.

SAN

YOW

12h 19m

1 stop

5:50 p.m. - 11:40 p.m.

YOW

SAN

8h 50m

1 stop

C$ 456United Airlines

Wed, 10 Jun - Thu, 11 Jun

9:45 p.m. - 6:48 p.m.

SAN

YOW

18h 03m

1 stop

5:50 p.m. - 11:40 p.m.

YOW

SAN

8h 50m

1 stop

C$ 502United Airlines

Sun, 7 Jun - Mon, 15 Jun

3:30 p.m. - 5:15 p.m.

SAN

YHM

22h 45m

1 stop

6:10 p.m. - 2:10 p.m.

YHM

SAN

23h 00m

1 stop

C$ 758WestJet

Tue, 5 May - Fri, 8 May

3:30 p.m. - 7:50 p.m.

SAN

YKF

25h 20m

1 stop

8:40 p.m. - 2:10 p.m.

YKF

SAN

20h 30m

1 stop

C$ 771WestJet

Tue, 5 May - Fri, 8 May

Air Canada flights from San Diego to Region of Ontario

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

Air Canada

2 May

SAN4:55 p.m.San Diego

13h 59m

2 stops

YUL9:54 a.m.Montreal Pierre Elliott Trudeau Intl

8 May

YUL5:45 p.m.Montreal Pierre Elliott Trudeau Intl

5h 58m

SAN8:43 p.m.San Diego

C$ 403

Air Canada

2 May

SAN4:55 p.m.San Diego

13h 59m

2 stops

YUL9:54 a.m.Montreal Pierre Elliott Trudeau Intl

8 May

YUL5:45 p.m.Montreal Pierre Elliott Trudeau Intl

5h 58m

SAN8:43 p.m.San Diego

C$ 404

Air Canada

2 May

SAN7:00 a.m.San Diego

5h 31m

YUL3:31 p.m.Montreal Pierre Elliott Trudeau Intl

8 May

YUL5:45 p.m.Montreal Pierre Elliott Trudeau Intl

5h 58m

SAN8:43 p.m.San Diego

C$ 405

American Airlines flights from San Diego to Region of Ontario

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

American Airlines

27 Apr

SAN10:40 p.m.San Diego

10h 04m

1 stop

YUL11:44 a.m.Montreal Pierre Elliott Trudeau Intl

1 May

YUL2:32 p.m.Montreal Pierre Elliott Trudeau Intl

9h 18m

1 stop

SAN8:50 p.m.San Diego

C$ 542

American Airlines

24 Apr

SAN7:20 p.m.San Diego

13h 24m

2 stops

YUL11:44 a.m.Montreal Pierre Elliott Trudeau Intl

27 Apr

YUL3:45 p.m.Montreal Pierre Elliott Trudeau Intl

9h 15m

1 stop

SAN10:00 p.m.San Diego

C$ 556

American Airlines

9 May

SAN7:20 p.m.San Diego

13h 24m

2 stops

YUL11:44 a.m.Montreal Pierre Elliott Trudeau Intl

12 May

YUL7:45 a.m.Montreal Pierre Elliott Trudeau Intl

14h 01m

1 stop

SAN6:46 p.m.San Diego

C$ 596

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

San DiegoMontreal

SAN - YUL

SANYUL

San Diego

Sat 2/5

4:55 p.m.-9:54 a.m.

2 stops13h 59m

Montreal Pierre Elliott Trudeau Intl

Fri 8/5

5:45 p.m.-8:43 p.m.

Nonstop5h 58m

C$ 403

San DiegoMontreal

SAN - YUL

SANYUL

San Diego

Sat 2/5

4:55 p.m.-9:54 a.m.

2 stops13h 59m

Montreal Pierre Elliott Trudeau Intl

Fri 8/5

5:45 p.m.-8:43 p.m.

Nonstop5h 58m

C$ 404

Quickest round-trip

San DiegoMontreal

SAN - YUL

SANYUL

San Diego

Sat 2/5

7:00 a.m.-3:31 p.m.

Nonstop5h 31m

Montreal Pierre Elliott Trudeau Intl

Fri 8/5

5:45 p.m.-8:43 p.m.

Nonstop5h 58m

C$ 405

San DiegoMontreal

SAN - YUL

SANYUL

San Diego

Sat 2/5

4:55 p.m.-9:54 a.m.

2 stops13h 59m

Montreal Pierre Elliott Trudeau Intl

Fri 8/5

7:00 a.m.-12:18 p.m.

1 stop8h 18m

C$ 414

San DiegoToronto

SAN - YYZ

SANYYZ

San Diego

Tue 14/4

2:12 p.m.-7:36 p.m.

2 stops26h 24m

Toronto Pearson Intl

Tue 28/4

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

1 stop28h 49m

C$ 443

San DiegoToronto

SAN - YYZ

SANYYZ

San Diego

Wed 27/5

10:07 p.m.-8:09 p.m.

1 stop19h 02m

Toronto Pearson Intl

Mon 1/6

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

1 stop14h 17m

C$ 447

San DiegoOttawa

SAN - YOW

SANYOW

San Diego

Wed 10/6

10:40 p.m.-1:59 p.m.

1 stop12h 19m

Ottawa

Thu 11/6

5:50 p.m.-11:40 p.m.

1 stop8h 50m

C$ 456

San DiegoOttawa

SAN - YOW

SANYOW

San Diego

Sun 7/6

9:45 p.m.-6:48 p.m.

1 stop18h 03m

Ottawa

Mon 15/6

5:50 p.m.-11:40 p.m.

1 stop8h 50m

C$ 502

San DiegoHamilton

SAN - YHM

SANYHM

San Diego

Tue 5/5

3:30 p.m.-5:15 p.m.

1 stop22h 45m

Hamilton

Fri 8/5

6:10 p.m.-2:10 p.m.

1 stop23h 00m

C$ 758

San DiegoToronto

SAN - YKF

SANYKF

San Diego

Tue 5/5

3:30 p.m.-7:50 p.m.

1 stop25h 20m

Toronto Region of Waterloo Intl

Fri 8/5

8:40 p.m.-2:10 p.m.

1 stop20h 30m

C$ 771

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 San Diego to Region of Ontario

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 Region of Ontario?

In general, May is the cheapest month to fly from San Diego to Region of Ontario. Due to it being the ‘off-season’ during this time, you can expect flight prices to be around C$ 542. If you are unable to visit Region of Ontario during the month of May, then departing from San Diego during the month March is also very affordable. Most momondo users find prices during this month for around C$ 558.

What is the cheapest day to depart on your flight to Region of Ontario?

The cheapest day to depart from San Diego to Region of Ontario is on a Friday. Travellers who choose to depart for Region of Ontario on a Friday will often find tickets for as low as C$ 420. The most expensive day to fly to Region of Ontario is Monday, with ticket prices averaging around C$ 778.

What is the cheapest time of day to depart on your flight to Region of Ontario?

Our most recent data shows that the best time of day to fly to Region of Ontario is at noon. Flights from San Diego to Region of Ontario during this time can be as low as C$ 434. If you have a flexible travel schedule, then try to avoid flying in the morning when prices are C$ 482 on average. Flights to Region of Ontario from San Diego in the morning are generally more expensive because this time of day is more convenient for travellers’ schedules.

What is the cheapest San Diego to Ontario flight route?

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

How far in advance should I book a flight to Region of Ontario?

You are more likely to see cheaper flights to Region of Ontario from San Diego when booking weeks ahead of your departure date. In general, you can expect to find flights to Region of Ontario for around C$ 625 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Region of Ontario from San Diego for as low as C$ 381 on momondo.

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

There are 3 cabin classes available to choose from on San Diego to Ontario 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 San Diego to Region of Ontario flights?

You could potentially save up to 41% on your flight if you consider stops on a San Diego to Region of Ontario flight.

Cheap San Diego to Region of Ontario flight deals and tips

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

Best price found	C$ 347
Fastest flight time	4h 50m
Direct flights	Every day
Airports in Region of Ontario	123 airports

The best one-way flight to Region of Ontario from San Diego in the past 72 hours is C$ 347. The best round-trip flight deal from San Diego to Region of Ontario found on momondo in the last 72 hours is C$ 581.

The fastest flight from San Diego to Region of Ontario takes 4h 50m

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

There are 123 airports in Region of Ontario. From San Diego there are direct flights to Toronto Pearson Intl (YYZ).

Search flight deals

When did momondo last update prices for flights from San Diego Airport to Ontario?
Prices for flights from San Diego Airport to Ontario were last updated today.
How many operators does momondo search for flights from San Diego Airport to Ontario?
The number of operators available for flights from San Diego Airport to Ontario is 2 as of March 2026.
How old do you have to be to fly from San Diego Airport to Ontario?
The minimum age for a child to fly alone is five, but airlines that offer an unaccompanied minor (UNMR) service may have their own age limitations. Flight duration, scheduling, and layovers are among the considerations that may influence age limits. We recommend that you double-check with the airline you are booking with for travel from San Diego Airport to Ontario.
What documentation or ID do you need to fly to Ontario?
The travel and health documents you'll need for your trip to Ontario may differ based on your itinerary and personal situation. Typically, you should have several documents on hand, such as a national ID card or driver's license and a passport that is valid for six months after your intended arrival at Ontario. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.
What is the most popular plane model from San Diego to Region of Ontario?
Based on momondo bookings for flights between San Diego and Region of Ontario, the leading plane model is Airbus A220-300, making up 57.30% of the total bookings. Other popular models include Boeing 737 MAX 8 with 24.56%, Airbus A320-100/200 with 6.41%, and Boeing 787-8 Dreamliner with 3.56%.

Best airlines flying from San Diego to Region of Ontario

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

Airline	Rating	Free Cancellation	Price
Air Canada	PriceFrom C$ 420	Free Cancellation	Rating 7.1 10,842 reviews		Search Air Canada flights
United Airlines	PriceFrom C$ 434	Free Cancellation	Rating 7.4 9,484 reviews		Search United Airlines flights

Why use momondo?

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

momondo collates all your flight options in one place and lets you filter them to find the perfect flight from San Diego to Ontario. momondo saves you time and could save you money on your trip.

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

Flights from San Diego to Ontario with flexible booking policies can be found by using the search form above and then selecting our dedicated flexible booking filter, which will highlight only the flights where this policy is applied.

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

momondo provides multiple filters to help you find the best flight to Ontario from San Diego. Filter by price, airline, airports, cabin, aircraft, payment method, number of stops and more.

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

Yes momondo offers price alerts on flights to Ontario from San Diego. After performing a search on this page you should be able to see the price alert set up feature. Simply provide a valid email address and momondo will instantly alert you when prices change.

An easier way to manage your Region of Ontario trip

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Popular Cities in Ontario

Flights to Torontofrom C$ 142

Flights to Vancouverfrom C$ 86

Flights to Montrealfrom C$ 192

Flights to Calgaryfrom C$ 130

Flights to Ottawafrom C$ 273

Flights to Winnipegfrom C$ 179

Flights to Halifaxfrom C$ 153

Flights to Kelownafrom C$ 142

Flights to Saskatoonfrom C$ 226

Flights to Reginafrom C$ 261

Flights to St. John'sfrom C$ 274

Flights to Vancouverfrom C$ 80

Cheap flights from San Diego to Ontario from C$ 197

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from San Diego to Ontario departing on 18/5. 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

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Air Canada flights from San Diego to Region of Ontario

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

American Airlines flights from San Diego to Region of Ontario

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

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

What is the cheapest month to fly to Region of Ontario?

What is the cheapest day to depart on your flight to Region of Ontario?

What is the cheapest time of day to depart on your flight to Region of Ontario?

What is the cheapest San Diego to Ontario flight route?

How far in advance should I book a flight to Region of Ontario?

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

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

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

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

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

Cheap San Diego to Region of Ontario flight deals and tips

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

Best price found

Fastest flight time

Direct flights

Airports in Region of Ontario

Best airlines flying from San Diego to Region of Ontario

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

Why use momondo?

An easier way to manage your Region of Ontario 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 Ontario

Popular Cities in Ontario

Popular flights according to clicks in the last 7 days on momondo

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According to popular flight searches on momondo this year

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