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$137+ Cheap flights from Ontario to San Diego (ONT - 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 9/28. Fares are subject to change and may not be available on all flights or dates of travel.
ONT — SAN
Jul 31 — Aug 71
From?
To?
Wed 7/31
Wed 8/7
1 adult, Economy
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Cheap flight deals from Ontario to San Diego

Discover tips and strategies to find the most affordable flight options for your journey from Ontario (ONT) to San Diego (SAN). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated July 26, 2024.

Round-trip from

$237
(American Airlines)

One-way from

$137
(Trip.com)
From Ontario to San Diego
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One-way flight from Ontario to San Diego
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How far in advance should I book a flight from Ontario to San Diego?

Find a great deal and save up to 57% by booking at least 25 days prior to your desired departure date, rather than waiting until the week of travel. According to our data, there are a number of flights available from Ontario to San Diego within the next two weeks, with the cheapest ticket starting at $176.

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

The best pricing can be found in the month of August. Prices to San Diego from Ontario average $213. You can even find prices in August for less than $213, as users have found deals to San Diego from as low as $109. The month of June appears to be one of the more expensive times to travel to San Diego from Ontario. Flying in the targeted month can save you up to 16%.

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

It’s typically best to fly out from Ontario to San Diego in the morning. Doing so could potentially save you 33% on the flight price compared to flying at noon, which is usually more expensive.

Cheap Ontario to San Diego flights in July & August 2024

Find cheap flight options from Ontario to San Diego specifically for the months of July and August 2024. Explore affordable fares based on user searches. Over the last 7 days, Cheapflights users made 2,752,877 searches. Prices were last updated on July 26, 2024.
Scroll through some of the best deals on flights from Ontario to San Diego in 2024. Check back soon for alternative fares.
This American Airlines deal was found by Cheapflights users on 7/25. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 8/3112:46 pmONT - SAN
1 stop22h 58mAmerican Airlines
Mon 9/307:40 pmSAN - ONT
1 stop16h 13mAmerican Airlines
Deal found 7/25$237
This American Airlines deal was found by Cheapflights users on 7/25. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 8/2812:46 pmONT - SAN
1 stop19h 49mAmerican Airlines
Sun 9/297:40 pmSAN - ONT
1 stop22h 54mAmerican Airlines
Deal found 7/25$259
This United Airlines deal was found by Cheapflights users on 7/25. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/196:45 pmONT - SAN
1 stop5h 14mUnited Airlines
Wed 8/217:25 pmSAN - ONT
1 stop5h 20mUnited Airlines
Deal found 7/25$425
This American Airlines deal was found by Cheapflights users on 7/25. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 8/96:40 amONT - SAN
1 stop11h 31mAmerican Airlines
Sat 8/1712:36 pmSAN - ONT
1 stop44h 14mAmerican Airlines
Deal found 7/25$435
This United Airlines deal was found by Cheapflights users on 7/25. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 8/186:20 amONT - SAN
1 stop5h 55mUnited Airlines
Mon 8/194:07 pmSAN - ONT
1 stop8h 38mUnited Airlines
Deal found 7/25$507
This United Airlines deal was found by Cheapflights users on 7/25. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 8/235:05 amONT - SAN
1 stop9h 44mUnited Airlines
Fri 8/3011:30 amSAN - ONT
1 stop9h 32mUnited Airlines
Deal found 7/25$573
This Alaska Airlines deal was found by Cheapflights users on 7/25. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 8/106:00 amONT - SAN
1 stop8h 33mAlaska Airlines
Thu 8/154:55 pmSAN - ONT
1 stop7h 04mAlaska Airlines
Deal found 7/25$682
This United Airlines deal was found by Cheapflights users on 7/24. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 8/16:20 amONT - SAN
1 stop6h 02mUnited Airlines
Thu 8/16:45 pmSAN - ONT
1 stop17h 48mUnited Airlines
Deal found 7/24$783
This United Airlines deal was found by Cheapflights users on 7/24. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 7/276:20 amONT - SAN
1 stop13h 58mUnited Airlines
Tue 7/307:26 pmSAN - ONT
1 stop16h 49mUnited Airlines
Deal found 7/24$944

Ontario to San Diego 2024 flight deals

Discover exclusive flight deals for travel between Ontario and San Diego in 2024. Find excellent offers based on user searches. Over the last 7 days, Cheapflights users made 2,752,877 searches. Data last updated July 26, 2024.
Scroll through some of the best deals on flights from Ontario to San Diego in 2024. Check back soon for alternative fares.
This American Airlines deal was found by Cheapflights users on 7/25. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 8/3112:46 pmONT - SAN
1 stop22h 58mAmerican Airlines
Mon 9/307:40 pmSAN - ONT
1 stop16h 13mAmerican Airlines
Deal found 7/25$237
This American Airlines deal was found by Cheapflights users on 7/25. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 8/2812:46 pmONT - SAN
1 stop19h 49mAmerican Airlines
Sun 9/297:40 pmSAN - ONT
1 stop22h 54mAmerican Airlines
Deal found 7/25$259
This Alaska Airlines deal was found by Cheapflights users on 7/24. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/87:30 amONT - SAN
1 stop13h 03mAlaska Airlines
Tue 10/156:15 amSAN - ONT
1 stop17h 39mAlaska Airlines
Deal found 7/24$262
This Alaska Airlines deal was found by Cheapflights users on 7/24. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 11/56:00 amONT - SAN
1 stop8h 47mAlaska Airlines
Sat 11/91:26 pmSAN - ONT
1 stop6h 37mAlaska Airlines
Deal found 7/24$282
This Alaska Airlines deal was found by Cheapflights users on 7/25. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/264:28 pmONT - SAN
1 stop7h 16mAlaska Airlines
Mon 9/306:15 amSAN - ONT
1 stop9h 18mAlaska Airlines
Deal found 7/25$312
This Alaska Airlines deal was found by Cheapflights users on 7/25. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 9/74:28 pmONT - SAN
1 stop6h 18mAlaska Airlines
Fri 9/134:55 pmSAN - ONT
1 stop7h 04mAlaska Airlines
Deal found 7/25$332
This Alaska Airlines deal was found by Cheapflights users on 7/25. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/511:00 amONT - SAN
1 stop9h 19mAlaska Airlines
Thu 10/1012:55 pmSAN - ONT
1 stop6h 37mAlaska Airlines
Deal found 7/25$342
This Alaska Airlines deal was found by Cheapflights users on 7/24. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/2410:09 amONT - SAN
1 stop13h 50mAlaska Airlines
Sun 10/276:20 amSAN - ONT
1 stop16h 30mAlaska Airlines
Deal found 7/24$362
This Alaska Airlines deal was found by Cheapflights users on 7/25. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 10/206:00 amONT - SAN
1 stop7h 07mAlaska Airlines
Fri 10/256:15 amSAN - ONT
1 stop9h 06mAlaska Airlines
Deal found 7/25$372

Ontario to San Diego flights leaving soon

Find last-minute flight options from Ontario to San Diego for spontaneous travel. Discover available flights and compare prices based on user searches. Secure great deals and offers for spontaneous trips with quick booking options. Over the last 7 days, Cheapflights users made 2,752,877 searches. Data last updated July 26, 2024.
Have a look at some of the last-minute flights available departing from Ontario to San Diego. To prevent any unwanted surprises, users should verify their flight info before booking.
This United Airlines deal was found by Cheapflights users on 7/24. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 8/16:20 amONT - SAN
1 stop6h 02mUnited Airlines
Thu 8/16:45 pmSAN - ONT
1 stop17h 48mUnited Airlines
Deal found 7/24$783
This Alaska Airlines deal was found by Cheapflights users on 7/25. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 8/34:07 pmONT - SAN
1 stop6h 42mAlaska Airlines
Sun 8/44:55 pmSAN - ONT
1 stop7h 04mAlaska Airlines
Deal found 7/25$1,032
This United Airlines deal was found by Cheapflights users on 7/25. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 7/306:20 amONT - SAN
1 stop4h 07mUnited Airlines
Mon 8/56:16 amSAN - ONT
1 stop6h 01mUnited Airlines
Deal found 7/25$1,095
This Alaska Airlines deal was found by Cheapflights users on 7/24. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 7/3010:00 amONT - SAN
1 stop7h 49mAlaska Airlines
Sat 8/33:15 pmSAN - ONT
1 stop8h 44mAlaska Airlines
Deal found 7/24$1,257

One-way flights to San Diego from Ontario

Search for one-way flight options from Ontario to San Diego. Find affordable one-way fares based on user searches. Compare prices and availability to plan your one-way journey according to your preferred dates and budget. Over the last 7 days, Cheapflights users made 2,752,877 searches. Data last updated July 26, 2024.
Users traveling one-way from Ontario to San Diego can select one of these great deals. Those seeking round-trip flights from Ontario to San Diego should utilize the search form at the the top of the page.
This Trip.com deal was found by Cheapflights users on 7/24. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 9/284:28 pmONT - SAN
1 stop6h 18mAlaska Airlines
Deal found 7/24$137
This Alaska Airlines deal was found by Cheapflights users on 7/23. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/164:00 pmONT - SAN
1 stop6h 43mAlaska Airlines
Deal found 7/23$141
This Alaska Airlines deal was found by Cheapflights users on 7/24. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/124:00 pmONT - SAN
1 stop16h 50mAlaska Airlines
Deal found 7/24$157
This Alaska Airlines deal was found by Cheapflights users on 7/24. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 9/1410:10 amONT - SAN
1 stop7h 34mAlaska Airlines
Deal found 7/24$161
This Alaska Airlines deal was found by Cheapflights users on 7/24. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 8/276:00 amONT - SAN
1 stop8h 32mAlaska Airlines
Deal found 7/24$171
This United Airlines deal was found by Cheapflights users on 7/24. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 8/276:20 amONT - SAN
1 stop4h 01mUnited Airlines
Deal found 7/24$173
This Alaska Airlines deal was found by Cheapflights users on 7/24. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 9/158:49 pmONT - SAN
1 stop12h 03mAlaska Airlines
Deal found 7/24$177
This Alaska Airlines deal was found by Cheapflights users on 7/24. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 8/238:49 pmONT - SAN
1 stop12h 03mAlaska Airlines
Deal found 7/24$187
This Alaska Airlines deal was found by Cheapflights users on 7/23. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 8/204:28 pmONT - SAN
1 stop7h 16mAlaska Airlines
Deal found 7/23$191

Find flights from Ontario to San Diego within your budget

Customize your flight search to find flights from Ontario to San Diego that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 2,752,877 searches. Data last updated July 26, 2024.

Fly from

Any airport

Fly to

Any airport

Budget

$237 - $425

Route

Depart

Return

Price

OntarioSan Diego

ONT - SAN

ONTSAN

Ontario

Sat 8/31

1 stop22h 58m

San Diego

Mon 9/30

1 stop16h 13m

$237

OntarioSan Diego

ONT - SAN

ONTSAN

Ontario

Wed 8/28

1 stop19h 49m

San Diego

Sun 9/29

1 stop22h 54m

$259

OntarioSan Diego

ONT - SAN

ONTSAN

Ontario

Tue 10/8

1 stop13h 03m

San Diego

Tue 10/15

1 stop17h 39m

$262

OntarioSan Diego

ONT - SAN

ONTSAN

Ontario

Tue 11/5

1 stop8h 47m

San Diego

Sat 11/9

1 stop6h 37m

$282

OntarioSan Diego

ONT - SAN

ONTSAN

Ontario

Fri 11/1

1 stop8h 22m

San Diego

Mon 11/4

1 stop9h 35m

$302

OntarioSan Diego

ONT - SAN

ONTSAN

Ontario

Thu 9/26

1 stop7h 16m

San Diego

Mon 9/30

1 stop9h 18m

$312

OntarioSan Diego

ONT - SAN

ONTSAN

Ontario

Fri 8/23

1 stop32h 53m

San Diego

Fri 8/30

1 stop13h 11m

$329

OntarioSan Diego

ONT - SAN

ONTSAN

Ontario

Sat 8/17

1 stop4h 56m

San Diego

Thu 8/22

1 stop5h 05m

$405

OntarioSan Diego

ONT - SAN

ONTSAN

Ontario

Mon 8/19

1 stop5h 14m

San Diego

Wed 8/21

1 stop5h 20m

$425

Flights are sorted by cheapest first

Deals found on 7/25

What is the cheapest day to fly from Ontario to San Diego?

Use this chart to determine the cheapest time to fly round-trip from Ontario to San Diego. Price data was last updated on July 21, 2024.
Morning
Noon
Afternoon
Evening
All times are departure.
Travelers seeking maximum savings on their Ontario to San Diego flight should consider departing on Wednesday mornings when fares are most often at their lowest. Wednesday mornings flights should be avoided if possible as fares are typically the most expensive at this time.
Search Deals

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.

Temperature and rainfall in San Diego by month

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

SAN

Temperature

57.2 - 71.6 °F

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

Get insights into the airlines that provide service to San Diego. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to San Diego. Reviews last updated July 26, 2024.
Get a feel of what it's like to fly with United Airlines, Alaska Airlines and American Airlines from Ontario to San Diego by reading reviews from past customers. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.
Southwest
8.2
Very good
5,641 reviews

Comfort

8.1

Overall

8.2

Entertainment

7.8

Boarding

8.3

Food

7.3

Crew

8.7

Reviews

1 / 10

Wish the there were an electrical outlet to plug the phone. it died within 10 minutes of being in the air.

Southwest
8.2
Very good
5,641 reviews
Southwest
8.2
Very good
5,641 reviews

Comfort

8.1

Overall

8.2

Entertainment

7.8

Boarding

8.3

Food

7.3

Crew

8.7

Reviews

1 / 10

Wish the there were an electrical outlet to plug the phone. it died within 10 minutes of being in the air.

Alaska Airlines
8.1
Very good
9,365 reviews
Southwest
8.2
Very good
5,641 reviews

Comfort

8.1

Overall

8.2

Entertainment

7.8

Boarding

8.3

Food

7.3

Crew

8.7

Reviews

1 / 10

Wish the there were an electrical outlet to plug the phone. it died within 10 minutes of being in the air.

JetBlue
7.6
Good
3,996 reviews
Southwest
8.2
Very good
5,641 reviews

Comfort

8.1

Overall

8.2

Entertainment

7.8

Boarding

8.3

Food

7.3

Crew

8.7

Reviews

1 / 10

Wish the there were an electrical outlet to plug the phone. it died within 10 minutes of being in the air.

United Airlines
7.4
Good
10,000 reviews
Southwest
8.2
Very good
5,641 reviews

Comfort

8.1

Overall

8.2

Entertainment

7.8

Boarding

8.3

Food

7.3

Crew

8.7

Reviews

1 / 10

Wish the there were an electrical outlet to plug the phone. it died within 10 minutes of being in the air.

American Airlines
7.3
Good
10,000 reviews
Southwest
8.2
Very good
5,641 reviews

Comfort

8.1

Overall

8.2

Entertainment

7.8

Boarding

8.3

Food

7.3

Crew

8.7

Reviews

1 / 10

Wish the there were an electrical outlet to plug the phone. it died within 10 minutes of being in the air.

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.

  • Can I find flights from Ontario to San Diego for under $300 on Cheapflights?

    Yes, there are multiple flights from Ontario to San Diego for under $300. The cheapest flight booked recently is on American Airlines for just $237, but on average you can expect to pay $374.

  • Are there last-minute flights available from Ontario to San Diego for under $800?

    There are currently 4+ open flights from Ontario to San Diego within the next 7 days for less than $800.

  • What are the cheapest airlines flying from Ontario to San Diego round-trip?

    Cheapflights users have booked flights from Ontario to San Diego round-trip from $237. Other airlines that can offer you cheap pricing are Alaska Airlines, from $262, and United Airlines, from $405.

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

    To fly one-way, consider booking your trip with Alaska Airlines, which is currently one of the cheapest options available, starting at $137. United Airlines flights start at $173 while deals on JetBlue start at $261 one-way.

  • What does ONT to SAN mean?

    These are just IATA (International Air Transport Association) codes. They are used in aviation to identify and differentiate airports. That’s why a Ontario Airport to San Diego Airport flight would often be abbreviated as a ONT to SAN flight.

  • Can I find deals for flights from Ontario to San Diego that include extra baggage allowance?

    The amount of baggage you can bring on your Ontario to San Diego flight depends on the airline and the type of fare you've chosen. After entering your flight details, you'll be able to view the specific baggage policies for each deal in the search results. Keep in mind that certain deals may offer additional baggage allowance.

  • Can I find deals on flights from Ontario to San Diego with specific airlines?

    Yes, Cheapflights allows you to browse and filter Ontario to San Diego flight deals by airline. After entering your origin and destination, use the available filters to view flights offered by airlines.

  • 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.

  • Can I find deals for flights from Ontario to San Diego that allow pets onboard?

    Many airlines flying from Ontario to San Diego offer the option to travel with pets. After selecting a flight deal, you can find more information about the airline's pet policy on their official website or by contacting the airline directly. Please note that additional fees and restrictions may apply.

  • Can I find deals on last-minute flights from Ontario to San Diego?

    Yes, you can often find last-minute deals on Ontario to San Diego flights on Cheapflights. However, these deals can vary and may not always be available. We recommend checking back frequently or signing up for price alerts for the most up-to-date deals.

  • How recently were the Ontario to San Diego flight deals updated?

    The Ontario to San Diego flight deals you see on this page were last updated on 7/25.

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

    Currently, October is the cheapest month in which you can book a flight from Ontario to San Diego (average of $289). Flying from Ontario to San Diego in July is currently the most expensive (average of $343). 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

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Weekly flight availability from Ontario to San Diego

Explore weekly flight availability from Ontario to San Diego. Discover flights operating on different days of the week, giving you the flexibility to choose a travel day that best fits your plans. Compare info to find the most convenient option for your journey. Data last updated July 26, 2024.
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