Cheap flights from San Diego to Ontario (SAN - ONT) from $176
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 6/5. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.
Cheap flight deals from San Diego to Ontario
Discover tips and strategies to find the most affordable flight options for your journey from San Diego (SAN) to Ontario (ONT). 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 May 9, 2024.
Round-trip from | $238 |
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What is the cheapest day to fly round-trip from San Diego to Ontario?
Departing on a Friday is a good option for securing a great price. You can expect to save up to 83% when planning your travel around this day of the week.
How far in advance should I book a flight from San Diego to Ontario?
Find a great deal and save up to 50% by booking at least 26 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 San Diego to Ontario within the next two weeks, with the cheapest ticket starting at $178.
What is the cheapest month to fly from San Diego to Ontario?
Our data shows that October tends to be the cheapest month to fly to Ontario from San Diego. Users have commonly found prices around $182 for the month, but tickets can be as low as $138. Due to multiple factors, prepare for potentially higher prices in June.
When is the cheapest time to fly from San Diego to Ontario (SAN - ONT)?
It’s optimal to fly from San Diego to Ontario in the morning. By choosing this option you can save up to 53% on the cost of your flight, compared to a flight at noon.
Cheap United Airlines flights from San Diego to Ontario
Explore cheap flight options specifically provided by United Airlines for the route between San Diego and Ontario. Find affordable fares and compare prices with other airlines to secure the best deal for your journey. Over the last 7 days, Cheapflights users made 2,717,708 searches. Data last updated May 9, 2024.
Take a peek at the cheapest United Airlines flights we've detected traveling from San Diego to Ontario. Make sure to double check the flight details before booking.
Cheap American Airlines flights from San Diego to Ontario
Explore cheap flight options specifically provided by American Airlines for the route between San Diego and Ontario. Find affordable fares and compare prices with other airlines to secure the best deal for your journey. Over the last 7 days, Cheapflights users made 2,717,708 searches. Data last updated May 9, 2024.
Have a look at some of the cheapest available American Airlines flights departing from San Diego and landing in Ontario. Deals are refreshing constantly so come back soon for more options.
Cheap San Diego to Ontario flights in May & June 2024
Find cheap flight options from San Diego to Ontario specifically for the months of May and June 2024. Explore affordable fares based on user searches. Over the last 7 days, Cheapflights users made 2,717,708 searches. Prices were last updated on May 9, 2024.
Scroll through some of the best deals on flights from San Diego to Ontario in 2024. Check back regularly for other flight deals.
San Diego to Ontario 2024 flight deals
Discover exclusive flight deals for travel between San Diego and Ontario in 2024. Find excellent offers based on user searches. Over the last 7 days, Cheapflights users made 2,717,708 searches. Data last updated May 9, 2024.
Scroll through some of the best deals on flights from San Diego to Ontario in 2024. Check back regularly for other flight deals.
San Diego to Ontario flights leaving soon
Find last-minute flight options from San Diego to Ontario 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 2,717,708 searches. Data last updated May 9, 2024.
Book one of these great deals on flights from San Diego to Ontario. To prevent any unwanted surprises, users should verify their flight info before booking.
One-way flights to Ontario from San Diego
Search for one-way flight options from San Diego to Ontario. 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 2,717,708 searches. Data last updated May 9, 2024.
Users in need of a one-way flight from San Diego to Ontario can choose from these deals. For those needing a return trip from San Diego, there is a search form available above.
Find flights from San Diego to Ontario within your budget
Customize your flight search to find flights from San Diego to Ontario 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 2,717,708 searches. Data last updated May 9, 2024.
Fly from
Fly to
Budget
$354 - $855
Route
Depart
Return
Price
San DiegoOntario
SAN - ONT
SANONT
San Diego
Fri 9/13
1 stop16h 19m
Ontario
Mon 9/16
1 stop35h 40m
San DiegoOntario
SAN - ONT
SANONT
San Diego
Sat 6/1
1 stop10h 59m
Ontario
Mon 6/3
1 stop21h 36m
San DiegoOntario
SAN - ONT
SANONT
San Diego
Thu 7/11
1 stop6h 00m
Ontario
Mon 7/29
1 stop6h 48m
San DiegoOntario
SAN - ONT
SANONT
San Diego
Thu 6/6
1 stop13h 05m
Ontario
Thu 6/13
1 stop13h 32m
San DiegoOntario
SAN - ONT
SANONT
San Diego
Thu 6/6
1 stop15h 07m
Ontario
Thu 6/13
1 stop15h 07m
San DiegoOntario
SAN - ONT
SANONT
San Diego
Sun 8/11
1 stop8h 58m
Ontario
Sun 12/8
1 stop8h 58m
San DiegoOntario
SAN - ONT
SANONT
San Diego
Sun 5/19
1 stop16h 49m
Ontario
Thu 5/23
1 stop4h 28m
San DiegoOntario
SAN - ONT
SANONT
San Diego
Fri 6/7
1 stop6h 01m
Ontario
Fri 6/14
1 stop5h 47m
San DiegoOntario
SAN - ONT
SANONT
San Diego
Sun 5/26
1 stop9h 44m
Ontario
Tue 6/18
1 stop5h 14m
When is the cheapest time to fly from San Diego to Ontario?
Use this chart to determine the cheapest time to fly round-trip from San Diego to Ontario. Price data was last updated on May 5, 2024.
Average price of flights to Ontario by month
Plan your trip from San Diego to Ontario by taking into account the cheapest months to travel. The average price of a one-way flight from San Diego to Ontario is currently $206 while a round-trip flight costs $572. Price data was last updated on May 5, 2024.
Currently, October is the cheapest month in which you can book a flight from San Diego to Ontario (average of $237). Flying from San Diego to Ontario in June is currently the most expensive (average of $337). 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.
January
$268
February
$287
March
$281
April
$256
May
$268
June
$337
July
$337
August
$287
September
$258
October
$237
November
$267
December
$272
Temperature and rainfall in Ontario by month
Plan your trip to Ontario by taking into account the average temperature and rainfall totals by month.
LAX Temperature | 57.2 - 73.4 °F |
|---|
Reviews of airlines servicing Ontario
Get insights into the airlines that provide service to Ontario. 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 Ontario. Reviews last updated May 9, 2024.
To help decide which airline to fly from San Diego to Ontario, see what other customers have to say about United Airlines, American Airlines and Alaska Airlines. Users can see the overall rating for each airline as well as how each is rated in terms of entertainment options, comfort, food, crew/service, and boarding process.
Food
Entertainment
Comfort
Overall
Boarding
Crew
Reviews
Paid a lot for our exit row seats and they weren’t that roomy.
Food
Entertainment
Comfort
Overall
Boarding
Crew
Reviews
Paid a lot for our exit row seats and they weren’t that roomy.
Food
Entertainment
Comfort
Overall
Boarding
Crew
Reviews
Paid a lot for our exit row seats and they weren’t that roomy.
Food
Entertainment
Comfort
Overall
Boarding
Crew
Reviews
Paid a lot for our exit row seats and they weren’t that roomy.
Related info for your journey
Find useful and relevant information for your journey from San Diego to Ontario. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.
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Alternative routes for San Diego to OntarioSee prices for flight routes from nearby airports that may be better suited for you.
See prices for flight routes from nearby airports that may be better suited for you.
Search flights from San Diego to Ontario by cabin class
Find flights from San Diego to Ontario, based on your preferred cabin class, be it economy, premium economy, business, or first class.
Weekly flight availability from San Diego to Ontario
Explore weekly flight availability from San Diego to Ontario. 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 May 9, 2024.
| Sunday | 0daily flights |
|---|---|
| Monday | 1daily flight |
| Tuesday | 1daily flight |
| Wednesday | 1daily flight |
| Thursday | 1daily flight |
| Friday | 1daily flight |
| Saturday | 0daily flights |
Book a flight to one of these trending destinations
User searches for flights to these destinations increased 20% or more in the past 90 days compared to other destinations
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How does Cheapflights help users find flights from San Diego to Ontario?
Cheapflights makes it easy to find San Diego to Ontario flights by helping our users search from 900+ travel sites for deals. We also provide you with filters for cabin, price, airline, airports, number of stops, and many more to narrow down that perfect flight.
Why should you use Cheapflights to find cheap flight tickets from San Diego to Ontario?
Millions of users choose and trust Cheapflights to book the best flight deals from San Diego to Ontario for free. We help you search and compare prices from hundreds of airlines for the right flight just for you.
Can Cheapflights find flights from San Diego to Ontario with no change fees?
Yes, we can. To see specific flights from San Diego to Ontario with no change fees, users can toggle flexible booking options after using the search form above to find flights.
Can Cheapflights notify me if prices for flights from San Diego to Ontario become cheaper?
Yes! Start tracking prices for San Diego to Ontario flights today and get alerted whenever prices for these flights change. To access this feature, click the bell icon next to the flight deals above, which will prompt you for a valid email address to receive your alerts.