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

What 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 traveling 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.

How long does it take to fly to San Diego?

On average, it takes 7h 49m to fly from Region of Ontario to San Diego if you fly out of Ottawa (the most popular airport in Region of Ontario) and into San Diego (the most popular airport in San Diego). If you’re flying out of Toronto and into San Diego, then the flight time is around 8h 01m.

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

As of August 2025, 3 flights take off from Region of Ontario and land in San Diego each day. The most common flight departure time for this route is 9:00AM, with 100% of daily flights taking off 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 refresh 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 6 as of August 2025.

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

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 Ontario to San Diego Airport.

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

The travel and health documents required for your trip to San Diego Airport can vary based on your itinerary and personal situation. As a rule, consider having multiple documents such as a national ID card or driver’s license, and a passport valid for six-months after you plan to arrive at San Diego Airport. We always recommend checking with your airline or a trusted third party such as IATA to get advice.

$137 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 am - 11:34 pmYYZ-SAN

16h 49m1 stop

6:15 am - 7:58 pmSAN-YYZ

10h 43m1 stop

$230

Find Deal

Wed, Sep 17 - Wed, Sep 24

9:45 am - 11:34 pmYYZ-SAN

16h 49m1 stop

1:35 pm - 6:52 amSAN-YYZ

14h 17m2 stops

$241

Find Deal

Wed, Sep 17 - Wed, Sep 24

5:29 pm - 9:44 amYUL-SAN

19h 15m1 stop

10:54 pm - 3:20 pmSAN-YUL

13h 26m1 stop

$312American Airlines

Find Deal

Wed, Aug 27 - Mon, Sep 1

9:45 am - 6:20 pmYUL-SAN

11h 35m1 stop

10:30 pm - 10:40 amSAN-YUL

9h 10m1 stop

$314United Airlines

Find Deal

Tue, Aug 26 - Sat, Aug 30

6:00 am - 1:20 pmYOW-SAN

10h 20m1 stop

2:05 pm - 6:45 amSAN-YOW

13h 40m1 stop

$318WestJet

Find Deal

Sun, Aug 31 - Sat, Sep 6

6:00 am - 1:20 pmYKF-SAN

10h 20m1 stop

12:35 pm - 5:28 amSAN-YKF

13h 53m1 stop

$321WestJet

Find Deal

Sat, Oct 25 - Sun, Nov 2

7:29 am - 3:25 pmYUL-SAN

10h 56m2 stops

10:54 pm - 3:20 pmSAN-YUL

13h 26m1 stop

$322American Airlines

Find Deal

Wed, Aug 27 - Mon, Sep 1

6:15 am - 3:50 pmYUL-SAN

12h 35m1 stop

8:11 pm - 8:16 amSAN-YUL

9h 05m1 stop

$331United Airlines

Find Deal

Wed, Aug 27 - Wed, Sep 10

7:45 am - 5:24 pmYOW-SAN

12h 39m1 stop

6:10 pm - 6:43 amSAN-YOW

9h 33m1 stop

$340Air Canada

Find Deal

Tue, Nov 25 - Tue, Dec 2

6:00 am - 11:38 amYUL-SAN

8h 38m1 stop

12:25 pm - 11:22 pmSAN-YUL

7h 57m1 stop

$346Air Canada

Find Deal

Sat, Dec 6 - Sat, Dec 13

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

Nov 25

YOW7:45 amOttawa

12h 39m

1 stop

SAN5:24 pmSan Diego

Dec 2

SAN6:10 pmSan Diego

9h 33m

1 stop

YOW6:43 amOttawa

$340

Find similar

Air Canada

Dec 6

YUL6:00 amMontreal Pierre Elliott Trudeau Intl

8h 38m

1 stop

SAN11:38 amSan Diego

Dec 13

SAN12:25 pmSan Diego

7h 57m

1 stop

YUL11:22 pmMontreal Pierre Elliott Trudeau Intl

$346

Find similar

Air Canada

Aug 25

YUL6:00 amMontreal Pierre Elliott Trudeau Intl

8h 35m

1 stop

SAN11:35 amSan Diego

Aug 26

SAN5:00 pmSan Diego

17h 51m

1 stop

YUL1:51 pmMontreal Pierre Elliott Trudeau Intl

$347

Find similar

Delta flights from Region of Ontario to San Diego

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

Delta

Oct 11

YUL6:00 amMontreal Pierre Elliott Trudeau Intl

11h 32m

1 stop

SAN2:32 pmSan Diego

Oct 20

SAN9:48 pmSan Diego

10h 43m

1 stop

YUL11:31 amMontreal Pierre Elliott Trudeau Intl

$376

Find similar

Delta

Oct 15

YUL6:00 amMontreal Pierre Elliott Trudeau Intl

7h 34m

1 stop

SAN10:34 amSan Diego

Oct 22

SAN6:15 amSan Diego

14h 33m

2 stops

YUL11:48 pmMontreal Pierre Elliott Trudeau Intl

$409

Find similar

Delta

Dec 14

YUL6:00 amMontreal Pierre Elliott Trudeau Intl

10h 53m

1 stop

SAN1:53 pmSan Diego

Dec 20

SAN10:30 pmSan Diego

10h 25m

1 stop

YUL11:55 amMontreal Pierre Elliott Trudeau Intl

$413

Find similar

Fly from

Fly to

Route

Depart

Return

Price

TorontoSan Diego

YYZ - SAN

YYZSAN

Toronto Pearson Intl

Wed 9/17

9:45 am-11:34 pm

1 stop16h 49m

San Diego

Wed 9/24

6:15 am-7:58 pm

1 stop10h 43m

$230

TorontoSan Diego

YYZ - SAN

YYZSAN

Toronto Pearson Intl

Wed 9/17

9:45 am-11:34 pm

1 stop16h 49m

San Diego

Wed 9/24

1:35 pm-6:52 am

2 stops14h 17m

$241

MontrealSan Diego

YUL - SAN

YULSAN

Montreal Pierre Elliott Trudeau Intl

Wed 8/27

5:29 pm-9:44 am

1 stop19h 15m

San Diego

Mon 9/1

10:54 pm-3:20 pm

1 stop13h 26m

$312

MontrealSan Diego

YUL - SAN

YULSAN

Montreal Pierre Elliott Trudeau Intl

Tue 8/26

9:45 am-6:20 pm

1 stop11h 35m

San Diego

Sat 8/30

10:30 pm-10:40 am

1 stop9h 10m

$314

OttawaSan Diego

YOW - SAN

YOWSAN

Ottawa

Sun 8/31

6:00 am-1:20 pm

1 stop10h 20m

San Diego

Sat 9/6

2:05 pm-6:45 am

1 stop13h 40m

$318

TorontoSan Diego

YKF - SAN

YKFSAN

Toronto Region of Waterloo Intl

Sat 10/25

6:00 am-1:20 pm

1 stop10h 20m

San Diego

Sun 11/2

12:35 pm-5:28 am

1 stop13h 53m

$321

MontrealSan Diego

YUL - SAN

YULSAN

Montreal Pierre Elliott Trudeau Intl

Wed 8/27

7:29 am-3:25 pm

2 stops10h 56m

San Diego

Mon 9/1

10:54 pm-3:20 pm

1 stop13h 26m

$322

MontrealSan Diego

YUL - SAN

YULSAN

Montreal Pierre Elliott Trudeau Intl

Wed 8/27

6:15 am-3:50 pm

1 stop12h 35m

San Diego

Wed 9/10

8:11 pm-8:16 am

1 stop9h 05m

$331

OttawaSan Diego

YOW - SAN

YOWSAN

Ottawa

Tue 11/25

7:45 am-5:24 pm

1 stop12h 39m

San Diego

Tue 12/2

6:10 pm-6:43 am

1 stop9h 33m

$340

MontrealSan Diego

YUL - SAN

YULSAN

Montreal Pierre Elliott Trudeau Intl

Sat 12/6

6:00 am-11:38 am

1 stop8h 38m

San Diego

Sat 12/13

12:25 pm-11:22 pm

1 stop7h 57m

$346

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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?

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 $278.

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

The cheapest day to depart from Region of Ontario to San Diego is on a Wednesday. Travelers who choose to depart for San Diego on a Wednesday will often find tickets for as low as $279. If your travel schedule is flexible, try to avoid departing on a Tuesday because tickets tend to average around $409. These prices are subject to change though, so be sure to set up a Price Alert for flights to San Diego.

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

The cheapest time of day to fly to San Diego is in the evening when flights can be purchased for as low as $286. Flights at noon are often more expensive with an average ticket price of $582.

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 $353 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 $312 on momondo.

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

There are 4 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 15% 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	$137
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 $137. The best round-trip flight deal from Region of Ontario to San Diego found on momondo in the last 72 hours is $230.

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 refresh 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 6 as of August 2025.
How old do you have to be to fly from Ontario to San Diego Airport?
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 Ontario to San Diego Airport.
What documentation or ID do you need to fly to San Diego Airport?
The travel and health documents required for your trip to San Diego Airport can vary based on your itinerary and personal situation. As a rule, consider having multiple documents such as a national ID card or driver’s license, and a passport valid for six-months after you plan to arrive at San Diego Airport. We always recommend checking with your airline or a trusted third party such as IATA to get advice.
What is the most popular plane model from Region of Ontario to San Diego?
Based on momondo bookings for flights between Region of Ontario and San Diego, the leading plane model is Airbus A220-300, making up 38.27% of the total bookings. Other popular models include Embraer 195 E2 with 35.94%, Airbus A320-100/200 with 11.98%, and Boeing 737 MAX 8 with 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 $116	Free Cancellation	Rating 8.0 332 reviews	Search Porter Airlines flights
Air Canada	PriceFrom $186	Free Cancellation	Rating 7.1 9,943 reviews	Search Air Canada flights
Air Transat	PriceFrom $234	Free Cancellation	Rating 7.7 425 reviews	Search Air Transat flights
United Airlines	PriceFrom $252	Free Cancellation	Rating 7.4 8,920 reviews	Search United Airlines flights
Delta	PriceFrom $264	Free Cancellation	Rating 8.0 7,979 reviews	Search Delta flights

Coronado

Chula Vista

El Cajon

Julian

National City

La Mesa

Imperial Beach

Poway

San Ysidro

Borrego Springs

Alpine

Lemon Grove

Santee

Why use momondo?

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

We help find the flight that best suits your needs, momondo compares prices from hundreds of airlines and travel agents and helps you filter them to find the best flight from Ontario to San Diego for you.

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

All flight searches from Ontario to San Diego on momondo can be filtered to show those which offer flexible booking policies.

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 $137

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 8/30. 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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Filter for what you want

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Find the cheapest flights from Ontario to San Diego

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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

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Our best Delta 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.

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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?

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 $278.

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?

The cheapest time of day to fly to San Diego is in the evening when flights can be purchased for as low as $286. Flights at noon are often more expensive with an average ticket price of $582.

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 4 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 15% 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

What airlines fly to San Diego?

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

As of August 2025, 3 flights take off from Region of Ontario and land in San Diego each day. The most common flight departure time for this route is 9:00AM, with 100% of daily flights taking off 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?

On average, it takes 7h 49m to fly from Region of Ontario to San Diego if you fly out of Ottawa (the most popular airport in Region of Ontario) and into San Diego (the most popular airport in San Diego). If you’re flying out of Toronto and into San Diego, then the flight time is around 8h 01m.

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

Traveling 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