$178+ Cheap flights from San José (SJO) to Ontario (ONT)
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 3/17. Fares are subject to change and may not be available on all flights or dates of travel.
Find cheap flights from San José to Ontario with Cheapflights
1. Tell us where you want to go
Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”2. Select your favorite providers
We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.3. Compare prices and book
Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.The best prices from San José Juan Santamaria Intl to Ontario are usually found in April or September, booked 89 days in advance, depart on a Tuesday or Friday and return on a Monday
Cheap flight deals from San José to Ontario
Discover tips and strategies to find the most affordable flight options for your journey from San José (SJO) 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 February 20, 2025.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $303 (United Airlines) |
One-way from | $178 (United Airlines) |
Popular in | October |
Cheapest in | April |
Average price | $513 |
Find flight deals from San José to Ontario
Cheapest flights from San José to OntarioExplore the most affordable flight options available from San José to Ontario. Find the lowest fares from popular airlines and budget airlines, with prices last updated on February 20, 2025.
Explore the most affordable flight options available from San José to Ontario. Find the lowest fares from popular airlines and budget airlines, with prices last updated on February 20, 2025.
This United Airlines deal was found by Cheapflights users on 2/20. 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.
This Cheapflightsfares deal was found by Cheapflights users on 2/20. 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
This Trip.com deal was found by Cheapflights users on 2/19. 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.
This Delta deal was found by Cheapflights users on 2/20. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
This American Airlines deal was found by Cheapflights users on 2/19. 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.
This Alaska Airlines deal was found by Cheapflights users on 2/20. 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.
This Kissandfly.com deal was found by Cheapflights users on 2/20. 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 Kissandfly.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Find flights from San José to Ontario within your budget
Customize your flight search to find flights from San José 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 2,558,603 searches. Data last updated February 20, 2025.
Fly from
Fly to
Route
Depart
Return
Price
San JoséOntario
SJO - ONT
SJOONT
San José Juan Santamaria Intl
Mon 5/26
8:45 am-10:45 pm
1 stop15h 00m
Ontario
Sun 6/1
6:00 am-7:15 am
1 stop24h 15m
San JoséOntario
SJO - ONT
SJOONT
San José Juan Santamaria Intl
Thu 5/1
9:35 am-9:55 pm
1 stop13h 20m
Ontario
Tue 5/6
11:25 pm-1:30 pm
1 stop13h 05m
San JoséOntario
SJO - ONT
SJOONT
San José Juan Santamaria Intl
Tue 3/4
3:32 pm-11:01 pm
1 stop9h 29m
Ontario
Thu 3/6
10:30 pm-11:25 am
1 stop10h 55m
San JoséOntario
SJO - ONT
SJOONT
San José Juan Santamaria Intl
Wed 3/5
12:59 am-11:53 pm
1 stop24h 54m
Ontario
Mon 3/17
10:27 pm-1:20 pm
1 stop13h 53m
San JoséOntario
SJO - ONT
SJOONT
San José Juan Santamaria Intl
Wed 3/5
1:26 am-11:58 pm
3 stops24h 32m
Ontario
Mon 3/17
6:00 am-10:59 pm
2 stops15h 59m
San JoséOntario
SJO - ONT
SJOONT
San José Juan Santamaria Intl
Sat 3/8
2:19 pm-10:52 pm
1 stop10h 33m
Ontario
Fri 4/18
10:15 pm-11:55 am
1 stop12h 40m
San JoséOntario
SJO - ONT
SJOONT
San José Juan Santamaria Intl
Mon 3/17
7:45 am-9:59 pm
1 stop15h 14m
San JoséOntario
SJO - ONT
SJOONT
San José Juan Santamaria Intl
Thu 4/3
11:55 am-1:42 pm
2 stops26h 47m
San JoséOntario
SJO - ONT
SJOONT
San José Juan Santamaria Intl
Tue 3/25
3:10 pm-10:00 pm
1 stop7h 50m
San JoséOntario
SJO - ONT
SJOONT
San José Juan Santamaria Intl
Tue 5/20
12:26 pm-11:44 pm
2 stops12h 18m
Compare providers for flights from San José to Ontario
Provider information is updated monthly. Please note that these providers often have deals for this flight, but the availability may vary on a day-by-day basis on Cheapflights.
Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from San José to Ontario in February.
| Provider | Price Accuracy | Trust Score* |
|---|---|---|
| Price Accuracy3 stars | Trust Score*3 stars | |
| Price Accuracy1 star | Trust Score*3 stars |
- Most accurate provider: When it comes to deals on San José, San José Province-Ontario flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on San José, San José Province-Ontario flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from San José, San José Province-Ontario flight searches over the past month and is updated monthly.
- Most trusted provider: When it comes to deals on San José, San José Province-Ontario flights, Cheapflights users trust FlightHub the most. FlightHub has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for San José, San José Province-Ontario flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.
Best time to book a flight from San José to Ontario
Have a flexible travel schedule? Discover the best time to fly to Ontario from San José with our price prediction graph.
Travel insights for flights from San José to Ontario
Get recent, data-driven insights about flights from San José to Ontario including ideal travel times, pricing trends, and more.
How far ahead should I book a flight from San José, San José Province to Ontario?
Use this chart to determine the optimal time to book a round-trip flight from San José to Ontario. Price data was last updated on February 14, 2025.
To ensure you get the cheapest price possible for a flight from San José, San José Province to Ontario, you should look to book at least 89 days in advance of your intended travel date. The price of your flight may increase if you delay and leave booking until a week or so before departure.
What is the cheapest month to book a flight from San José, San José Province to Ontario?
Currently, August is the cheapest month in which you can book a flight from San José, San José Province to Ontario (average of $246). Flying from San José, San José Province to Ontario in March is currently the most expensive (average of $315). 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 SJO to ONT?
Find hourly flight availability from San José to Ontario. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated February 20, 2025.
Unlike at noon, when flights are generally more expensive, you can save up to 59% on flights from San José, San José Province to Ontario by exploring options for tickets in the afternoon.
Rainfall in Ontario by month
Plan your trip to Ontario by taking into account the average rainfall totals by month.
In terms of precipitation, rainfall in Ontario ranges from 0.1 - 3.4 inches per month. February is typically the wettest month, when rainfall can reach 3.4 in. June is typically the driest time to visit Ontario when rainfall is around 0.1 in.
Temperature in Ontario by month
Plan your trip to Ontario by taking into account the average temperature totals by month.
If weather is an important factor for your trip to Ontario, 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 78.8 F. Travelers looking to avoid the cold should look outside of December, when temperatures are typically at their lowest (around 53.6 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 February 20, 2025.
To help decide which airline to fly from San José to Ontario, see what other customers have to say about Alaska Airlines, Delta and United 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.
Boarding
Entertainment
Comfort
Crew
Food
Overall
Reviews
Seleste,Dec 2024
FAT - SAN
Boarding
Entertainment
Comfort
Crew
Food
Overall
Reviews
Seleste,Dec 2024
FAT - SAN
Boarding
Entertainment
Comfort
Crew
Food
Overall
Reviews
Seleste,Dec 2024
FAT - SAN
Boarding
Entertainment
Comfort
Crew
Food
Overall
Reviews
Seleste,Dec 2024
FAT - SAN
Boarding
Entertainment
Comfort
Crew
Food
Overall
Reviews
Seleste,Dec 2024
FAT - SAN
Boarding
Entertainment
Comfort
Crew
Food
Overall
Reviews
Seleste,Dec 2024
FAT - SAN
Related info for your journey
Find useful and relevant information for your journey from San José 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 José to Ontario
See prices for flight routes from nearby airports that may be better suited for you.
Top 3 airlines flying from San José to Ontario
Discover the top 3 airlines that operate flights from San José to Ontario. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated February 20, 2025.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$308 | Average$418 | FlexibilityNo cancel fee | On-time71% | |
| Cheapest$349 | Average$478 | FlexibilityNo cancel fee | On-time69% | |
| Cheapest$408 | Average$614 | FlexibilityNo cancel fee | On-time71% |