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

The cheapest airline one-way is WestJet, with whom users have recently found tickets for as low as $141. However, be on the lookout for offers from Air Canada and Porter Airlines, as they are both options that can get you from Region of Ontario to San Diego for a low price.

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

While some choose either Montreal Pierre Elliott Trudeau Intl - San Diego or Toronto Island - San Diego, Toronto Pearson Intl - San Diego is the most popular route from Region of Ontario to San Diego.

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

On average you can expect to pay $215 for a flight from Region of Ontario to San Diego. The cheapest flight overall is $144 while the most popular route, (Toronto Pearson Intl - San Diego) is currently priced at $200.

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

Looking for the most reliable airlines to get you to your destination on time? Our data shows these are most likely to get you from Region of Ontario to San Diego on time: Porter Airlines (77%), Air Transat (77%), Air Canada (75%).

What are the most popular airlines that fly from Region of Ontario to San Diego?

American Airlines, Air Canada and Delta are the most popular airlines when flying from Region of Ontario to San Diego.

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

Travelers have found it’s best to book a flight 50 days in advance to save up to 76% compared to booking the same week of travel. As your travel date approaches, the cost of this flight route may potentially increase. While opting to book 50 days out may not be an option for all, there are still additional ways to secure a deal in the near future. You might find a flight from Region of Ontario to San Diego 1-2 weeks in advance for as low as $407, or $828 for flights within the next 24 hours.

What is the cheapest month to fly from Region of Ontario to San Diego?

Our data shows that February tends to be the cheapest month to fly to San Diego from Region of Ontario. Users have commonly found prices around $420 for the month, but tickets can be as low as $154. Due to multiple factors, prepare for potentially higher prices in September.

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

Most people fly into San Diego (SAN) if they book a flight to San Diego from Ontario. San Diego is conveniently located just 2.6 mi from San Diego’s city center.

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

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

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

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

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

Yes. Cheapflights offers flight deals from Ontario to San Diego by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

$137+ Flights from Ontario to San Diego

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Cheap flight deals from Ontario to San Diego

Most accurate provider	FlightHub 3 stars
Most trusted provider	FlightHub 3 stars
Round-trip from	$216 (Kiwi.com)
One-way from	$137 (Kiwi.com)
Popular in	September
Cheapest in	February
Average price	$334
Good round-trip deal	$178 or less
Good one-way deal	$165 or less

Provider with most accurate pricing for Toronto (YTO)-San Diego flight deals.

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Provider most trusted by Cheapflights users for Toronto (YTO)-San Diego flights.

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From Ontario to San Diego

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One-way flight from Ontario to San Diego

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Highest demand for flights based on searches. 10% potential increase in price ($49 potential increase over avg. RT price).

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Cheapest flight prices on average. 1% potential price decrease ($7 potential savings vs. average RT price).

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Average for round-trip flights in March 2025

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Price to beat on a round-trip flight from Ontario to San Diego.

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Price to beat on a one-way flight from Ontario to San Diego.

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Find flight deals from Ontario to San Diego

Cheapest flights from Ontario to San Diego
Explore the most affordable flight options available from Ontario to San Diego. Find the lowest fares from popular airlines and budget airlines, with prices last updated on March 28, 2025.

Thu 4/107:25 pmYYZ - SAN

1 stop15h 09mMultiple Airlines

Thu 4/176:15 amSAN - YYZ

1 stop20h 40mMultiple Airlines

Deal found 3/26

$200

Mon 4/144:10 pmYTZ - SAN

2 stops11h 32mMultiple Airlines

Thu 4/176:15 amSAN - YTZ

2 stops32h 35mMultiple Airlines

Deal found 3/27

$225

Sat 5/106:30 amYYZ - SAN

1 stop9h 50mWestJet

Sun 5/112:05 pmSAN - YYZ

2 stops12h 46mWestJet

Deal found 3/26

$233

Tue 4/156:55 pmYYZ - SAN

1 stop8h 23mAir Canada

Tue 4/2211:00 amSAN - YYZ

1 stop8h 51mAir Canada

Deal found 3/26

$237

Wed 5/76:00 amYKF - SAN

2 stops16h 53mMultiple Airlines

Wed 5/146:15 amSAN - YKF

3 stops15h 31mMultiple Airlines

Deal found 3/27

$244

Sat 7/266:00 amYKF - SAN

1 stop10h 20mWestJet

Thu 7/3111:15 amSAN - YKF

1 stop10h 31mWestJet

Deal found 3/27

$249

Fri 5/210:45 amYYZ - SAN

Nonstop5h 10mAir Transat

Sun 5/111:55 pmSAN - YYZ

Nonstop4h 50mAir Transat

Deal found 3/27

$250

Fri 5/210:45 amYYZ - SAN

Nonstop5h 10mPorter Airlines

Sun 5/111:55 pmSAN - YYZ

Nonstop4h 50mPorter Airlines

Deal found 3/27

$251

Sun 7/136:00 amYHM - SAN

1 stop10h 20mWestJet

Sun 7/2011:15 amSAN - YHM

1 stop10h 26mWestJet

Deal found 3/27

$253

Mon 5/58:30 amYUL - SAN

2 stops13h 21mUnited Airlines

Tue 5/138:10 amSAN - YUL

Nonstop5h 27mUnited Airlines

Deal found 3/27

$261

Thu 4/106:00 amYUL - SAN

1 stop8h 48mAir Canada

Mon 4/147:00 amSAN - YUL

1 stop7h 26mAir Canada

Deal found 3/27

$263

Wed 5/710:20 amYTZ - SAN

2 stops12h 25mAir Canada

Wed 5/147:00 amSAN - YTZ

2 stops11h 35mAir Canada

Deal found 3/27

$264

Best flights from Ontario to San Diego
Discover carefully curated flight deals from Ontario to San Diego that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated March 28, 2025.

Mon 4/77:25 pmYYZ - SAN

1 stop14h 51mMultiple Airlines

Wed 4/98:29 amSAN - YYZ

1 stop19h 14mMultiple Airlines

Deal found 3/27

$216

Sat 7/266:00 amYKF - SAN

1 stop10h 20mWestJet

Thu 7/3111:15 amSAN - YKF

1 stop10h 31mWestJet

Deal found 3/27

$249

Fri 5/210:45 amYYZ - SAN

Nonstop5h 10mAir Transat

Sun 5/111:55 pmSAN - YYZ

Nonstop4h 50mAir Transat

Deal found 3/27

$250

Fri 5/210:45 amYYZ - SAN

Nonstop5h 10mPorter Airlines

Sun 5/111:55 pmSAN - YYZ

Nonstop4h 50mPorter Airlines

Deal found 3/27

$251

Wed 5/79:30 amYYZ - SAN

Nonstop5h 23mAir Canada

Wed 5/1412:55 pmSAN - YYZ

1 stop6h 53mAir Canada

Deal found 3/27

$254

Mon 5/58:30 amYUL - SAN

2 stops13h 21mUnited Airlines

Tue 5/138:10 amSAN - YUL

Nonstop5h 27mUnited Airlines

Deal found 3/27

$261

Tue 6/311:38 amYYZ - SAN

1 stop9h 24mDelta

Tue 6/106:15 amSAN - YYZ

1 stop7h 25mDelta

Deal found 3/26

$266

Mon 5/54:00 pmYUL - SAN

1 stop8h 44mAmerican Airlines

Tue 5/134:31 pmSAN - YUL

2 stops16h 13mAmerican Airlines

Deal found 3/27

$275

Wed 4/94:45 pmYYZ - SAN

2 stops10h 14mAlaska Airlines

Wed 4/237:55 pmSAN - YYZ

1 stop16h 05mAlaska Airlines

Deal found 3/27

$336

Mon 4/144:10 pmYTZ - SAN

2 stops11h 32mMultiple Airlines

Thu 4/176:15 amSAN - YTZ

2 stops32h 35mMultiple Airlines

Deal found 3/27

$225

Sun 5/116:30 amYYZ - SAN

1 stop9h 50mWestJet

Sun 5/251:00 pmSAN - YYZ

1 stop21h 39mWestJet

Deal found 3/27

$252

Thu 4/106:00 amYUL - SAN

1 stop8h 48mAir Canada

Mon 4/147:00 amSAN - YUL

1 stop7h 26mAir Canada

Deal found 3/27

$263

Last-minute flights from Ontario to San Diego
Discover last-minute flight deals from Ontario to San Diego. Data last updated March 28, 2025 and is based on user searches.

Thu 4/36:00 amYUL - SAN

1 stop8h 48mAir Canada

Thu 4/104:45 pmSAN - YUL

1 stop14h 43mAir Canada

Deal found 3/27

$298

Thu 4/310:15 amYYZ - SAN

1 stop7h 42mUnited Airlines

Wed 4/1612:55 pmSAN - YYZ

1 stop6h 53mUnited Airlines

Deal found 3/27

$307

Thu 4/311:15 amYUL - SAN

1 stop12h 29mUnited Airlines

Thu 4/1010:00 pmSAN - YUL

1 stop9h 28mUnited Airlines

Deal found 3/27

$328

Thu 4/310:25 amYTZ - SAN

2 stops11h 31mAir Canada

Wed 4/167:00 amSAN - YTZ

2 stops10h 37mAir Canada

Deal found 3/27

$443

Thu 4/36:45 amYUL - SAN

3 stops29h 56mMultiple Airlines

Thu 4/106:15 amSAN - YUL

3 stops33h 45mMultiple Airlines

Deal found 3/27

$468

Thu 4/34:45 pmYYZ - SAN

2 stops17h 50mAlaska Airlines

Wed 4/1610:45 amSAN - YYZ

2 stops25h 15mAlaska Airlines

Deal found 3/27

$493

Fri 4/410:20 amYYZ - SAN

Nonstop5h 45mPorter Airlines

Fri 4/112:05 pmSAN - YYZ

Nonstop4h 45mPorter Airlines

Deal found 3/26

$328

Fri 4/46:00 amYYZ - SAN

1 stop7h 52mDelta

Fri 4/1110:00 pmSAN - YYZ

1 stop8h 21mDelta

Deal found 3/26

$375

Sun 4/67:25 pmYYZ - SAN

1 stop15h 16mMultiple Airlines

Wed 4/166:15 amSAN - YYZ

1 stop21h 28mMultiple Airlines

Deal found 3/27

$204

Sun 4/68:00 amYYZ - SAN

2 stops30h 46mWestJet

Wed 4/1612:35 pmSAN - YYZ

2 stops26h 28mWestJet

Deal found 3/27

$360

Mon 4/710:20 amYYZ - SAN

Nonstop5h 45mAir Transat

Wed 4/92:05 pmSAN - YYZ

Nonstop4h 45mAir Transat

Deal found 3/27

$333

Mon 4/72:00 pmYTZ - SAN

1 stop8h 56mMultiple Airlines

Wed 4/96:15 amSAN - YTZ

2 stops9h 38mMultiple Airlines

Deal found 3/27

$548

One-way flights from Ontario to San Diego
Search for one-way flight options from Ontario to San Diego. Find affordable one-way fares based on user searches. Data last updated March 28, 2025.

Wed 5/76:55 amYYZ - SAN

2 stops15h 58mMultiple Airlines

Deal found 3/27

$137

Tue 7/86:00 amYKF - SAN

1 stop10h 20mWestJet

Deal found 3/27

$141

Fri 5/2312:25 pmYTZ - SAN

1 stop10h 20mAir Canada

Deal found 3/26

$142

Wed 5/76:00 amYHM - SAN

1 stop10h 20mWestJet

Deal found 3/27

$145

Wed 5/710:45 amYYZ - SAN

Nonstop5h 10mPorter Airlines

Deal found 3/27

$146

Fri 5/2312:00 pmYYZ - SAN

1 stop10h 45mAir Canada

Deal found 3/26

$148

Fri 7/116:30 amYYZ - SAN

1 stop9h 50mWestJet

Deal found 3/27

$154

Wed 6/256:45 amYUL - SAN

1 stop9h 10mPorter Airlines

Deal found 3/26

$158

Mon 5/262:30 pmYOW - SAN

1 stop8h 15mAir Canada

Deal found 3/27

$158

Fri 5/237:00 amYTZ - SAN

2 stops14h 26mMultiple Airlines

Deal found 3/26

$161

Sat 4/1912:30 pmYUL - SAN

1 stop13h 58mAmerican Airlines

Deal found 3/27

$162

Fri 5/2310:45 amYYZ - SAN

Nonstop5h 10mAir Transat

Deal found 3/26

$164

Cheapflights Fare Finder

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

Fly from

Fly to

Route

Depart

Return

Price

TorontoSan Diego

YYZ - SAN

YYZSAN

Toronto Pearson Intl

Thu 4/10

7:25 pm-7:34 am

1 stop15h 09m

San Diego

Thu 4/17

6:15 am-5:55 am

1 stop20h 40m

$200

TorontoSan Diego

YTZ - SAN

YTZSAN

Toronto Island

Mon 4/14

4:10 pm-12:42 am

2 stops11h 32m

San Diego

Thu 4/17

6:15 am-5:50 pm

2 stops32h 35m

$225

TorontoSan Diego

YYZ - SAN

YYZSAN

Toronto Pearson Intl

Sat 5/10

6:30 am-1:20 pm

1 stop9h 50m

San Diego

Sun 5/11

2:05 pm-5:51 am

2 stops12h 46m

$233

TorontoSan Diego

YYZ - SAN

YYZSAN

Toronto Pearson Intl

Tue 4/15

6:55 pm-12:18 am

1 stop8h 23m

San Diego

Tue 4/22

11:00 am-10:51 pm

1 stop8h 51m

$237

TorontoSan Diego

YKF - SAN

YKFSAN

Toronto Region of Waterloo Intl

Wed 5/7

6:00 am-7:53 pm

2 stops16h 53m

San Diego

Wed 5/14

6:15 am-12:46 am

3 stops15h 31m

$244

TorontoSan Diego

YKF - SAN

YKFSAN

Toronto Region of Waterloo Intl

Sat 7/26

6:00 am-1:20 pm

1 stop10h 20m

San Diego

Thu 7/31

11:15 am-12:46 am

1 stop10h 31m

$249

TorontoSan Diego

YYZ - SAN

YYZSAN

Toronto Pearson Intl

Fri 5/2

10:45 am-12:55 pm

Nonstop5h 10m

San Diego

Sun 5/11

1:55 pm-9:45 pm

Nonstop4h 50m

$250

TorontoSan Diego

YYZ - SAN

YYZSAN

Toronto Pearson Intl

Fri 5/2

10:45 am-12:55 pm

Nonstop5h 10m

San Diego

Sun 5/11

1:55 pm-9:45 pm

Nonstop4h 50m

$251

HamiltonSan Diego

YHM - SAN

YHMSAN

Hamilton

Sun 7/13

6:00 am-1:20 pm

1 stop10h 20m

San Diego

Sun 7/20

11:15 am-12:41 am

1 stop10h 26m

$253

MontrealSan Diego

YUL - SAN

YULSAN

Montreal Pierre Elliott Trudeau Intl

Mon 5/5

8:30 am-6:51 pm

2 stops13h 21m

San Diego

Tue 5/13

8:10 am-4:37 pm

Nonstop5h 27m

$261

Flights are sorted by cheapest round-trip flights first.

Deals found on 3/27

Showing 1-10 of 52 results

...

Best time to book a flight from Ontario to San Diego

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

Estimated round-trip price

Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Cheapflights Insights

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

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

Currently, August is the cheapest month in which you can book a flight from Region of Ontario to San Diego (average of $286). Flying from Region of Ontario to San Diego in March is currently the most expensive (average of $366). 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 ON to SAN?

Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from Region of Ontario to San Diego as you normally would.

Rainfall in San Diego by month

In terms of precipitation, rainfall in San Diego ranges from 0.0 - 2.3 inches per month. February is typically the wettest month, when rainfall can reach 2.3 in. July is typically the driest time to visit San Diego when rainfall is around 0.0 in.

Temperature in San Diego by month

If weather is an important factor for your trip to San Diego, use this chart to help with planning. For those seeking warmer temperatures, August is the ideal time of year to visit, when temperatures reach an average of 71.6 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 57.2 F).

Reviews of airlines servicing San Diego

See what other customers who have flown with Alaska Airlines, Delta and Porter Airlines from Ontario to San Diego have to say. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.

Alaska Airlines

8.0

Very good

9,798 reviews

Reviews

1 / 20

10.0

Excellent

Seleste,Dec 2024

FAT - SAN

The attention and efficiency of the staff and the good handling of the pilot

Alaska Airlines

8.0

Very good

9,798 reviews

Alaska Airlines

8.0

Very good

9,798 reviews

Reviews

1 / 20

10.0

Excellent

Seleste,Dec 2024

FAT - SAN

The attention and efficiency of the staff and the good handling of the pilot

Delta

8.0

Very good

7,897 reviews

Alaska Airlines

8.0

Very good

9,798 reviews

Reviews

1 / 20

10.0

Excellent

Seleste,Dec 2024

FAT - SAN

The attention and efficiency of the staff and the good handling of the pilot

Porter Airlines

7.9

Good

276 reviews

Alaska Airlines

8.0

Very good

9,798 reviews

Reviews

1 / 20

10.0

Excellent

Seleste,Dec 2024

FAT - SAN

The attention and efficiency of the staff and the good handling of the pilot

Air Transat

7.8

Good

381 reviews

Alaska Airlines

8.0

Very good

9,798 reviews

Reviews

1 / 20

10.0

Excellent

Seleste,Dec 2024

FAT - SAN

The attention and efficiency of the staff and the good handling of the pilot

United Airlines

7.4

Good

8,603 reviews

Alaska Airlines

8.0

Very good

9,798 reviews

Reviews

1 / 20

10.0

Excellent

Seleste,Dec 2024

FAT - SAN

The attention and efficiency of the staff and the good handling of the pilot

Related info for your journey

What airport do you fly into for flights to San Diego from Ontario?
Most people fly into San Diego (SAN) if they book a flight to San Diego from Ontario. San Diego is conveniently located just 2.6 mi from San Diego’s city center.
What are the cheapest airlines to fly from Region of Ontario to San Diego one-way?
The cheapest airline one-way is WestJet, with whom users have recently found tickets for as low as $141. However, be on the lookout for offers from Air Canada and Porter Airlines, as they are both options that can get you from Region of Ontario to San Diego for a low price.
What are the most popular routes from Region of Ontario to San Diego?
While some choose either Montreal Pierre Elliott Trudeau Intl - San Diego or Toronto Island - San Diego, Toronto Pearson Intl - San Diego is the most popular route from Region of Ontario to San Diego.
What are the most reliable airlines from Region of Ontario to San Diego?
Looking for the most reliable airlines to get you to your destination on time? Our data shows these are most likely to get you from Region of Ontario to San Diego on time: Porter Airlines (77%), Air Transat (77%), Air Canada (75%).
What are the cheapest flights from Region of Ontario to San Diego?
On average you can expect to pay $215 for a flight from Region of Ontario to San Diego. The cheapest flight overall is $144 while the most popular route, (Toronto Pearson Intl - San Diego) is currently priced at $200.
Can I find deals for flights from Ontario to San Diego that include hotel bookings?
Yes. In addition to deals on Ontario to San Diego flights, Cheapflights offers vacation packages that include both flights and hotel.
How can I find direct flights from Ontario to San Diego?
After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Ontario to San Diego.
Can I find deals for business class flights from Ontario to San Diego?
Yes. Cheapflights offers flight deals from Ontario to San Diego 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 Region of Ontario to San Diego?
Currently, August is the cheapest month in which you can book a flight from Region of Ontario to San Diego (average of $286). Flying from Region of Ontario to San Diego in March is currently the most expensive (average of $366). 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

El Cajon

Chula Vista

Lemon Grove

National City

Imperial Beach

La Mesa

Alpine

Poway

Santee

Coronado

Borrego Springs

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Top 6 airlines flying from Ontario to San Diego

Airline	Cheapest	Average	Flexibility	On-time
Porter Airlines	Cheapest$115	Average$240	FlexibilityNo cancel fee	On-time52%
Air Canada	Cheapest$186	Average$548	FlexibilityNo cancel fee	On-time67%
Air Transat	Cheapest$234	Average$408	FlexibilityNo cancel fee	On-time50%
United Airlines	Cheapest$236	Average$479	FlexibilityNo cancel fee	On-time69%
American Airlines	Cheapest$236	Average$455	FlexibilityNo cancel fee	On-time71%
Delta	Cheapest$264	Average$504	FlexibilityNo cancel fee	On-timeN/A

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$137+ Cheap flights from Ontario to San Diego (SAN)

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 5/7. Fares are subject to change and may not be available on all flights or dates of travel.

Find cheap flights from Ontario to San Diego with Cheapflights

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Cheap flight deals from Ontario to San Diego

Keep the following information in mind while searching for Ontario to San Diego flight deals. Data was last updated March 28, 2025.

Most accurate provider

Most trusted provider

Round-trip from

One-way from

Popular in

Cheapest in

Average price

Good round-trip deal

Good one-way deal

Find flight deals from Ontario to San Diego

Cheapest flights from Ontario to San DiegoExplore the most affordable flight options available from Ontario to San Diego. Find the lowest fares from popular airlines and budget airlines, with prices last updated on March 28, 2025.

Explore the most affordable flight options available from Ontario to San Diego. Find the lowest fares from popular airlines and budget airlines, with prices last updated on March 28, 2025.

Cheapflights Fare Finder

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

Best time to book a flight from Ontario to San Diego

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

Cheapflights Insights

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

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

What is the cheapest time of day to fly from ON to SAN?

Find hourly flight availability from Ontario to San Diego. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated March 28, 2025.

Rainfall in San Diego by month

Plan your trip to San Diego by taking into account the average rainfall totals by month.

Temperature in San Diego by month

Plan your trip to San Diego by taking into account the average temperature totals by month.

Reviews of airlines servicing San Diego

See what other customers who have flown with Alaska Airlines, Delta and Porter Airlines from Ontario to San Diego have to say. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.

Related info for your journey

Find useful and relevant information for your journey from Ontario to San Diego. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

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

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

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

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

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

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

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

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

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

Traveling to a place near Ontario?

Browse thousands of different options on Cheapflights for your next trip

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Alternative routes for Ontario to San Diego

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Top 6 airlines flying from Ontario to San Diego

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Cheapest flights from Ontario to San Diego
Explore the most affordable flight options available from Ontario to San Diego. Find the lowest fares from popular airlines and budget airlines, with prices last updated on March 28, 2025.