$195+ Cheap flights from San José (SJO) to Ontario (ONT)
This is the cheapest round-trip flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 1/21. Fares are subject to change and may not be available on all flights or dates of travel.
SJO — ONT
Dec 14 — Dec 211
Round-trip
1 adult, Economy
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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
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Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.Cheap flight deals from San José to Ontario
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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 November 14, 2026.
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 November 14, 2026.
This Volaris deal was found by Cheapflights users on 11/14. 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 Volaris is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 12/123:00 pm -
1 stop9h 15m
Fri 2/1912:05 am -
1 stop20h 39m
Deal found 11/14![Multiple Airlines logo]()
$328
This Gotogate deal was found by Cheapflights users on 11/13. 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 Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/223:00 pm -
1 stop9h 15m
Fri 1/2912:05 am -
1 stop20h 39m
Deal found 11/13![Multiple Airlines logo]()
$527
This Gotogate deal was found by Cheapflights users on 11/13. 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 Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 12/123:00 pm -
1 stop9h 15m
Mon 12/2812:05 am -
1 stop20h 39m
Deal found 11/13![Multiple Airlines logo]()
$566
This Mytrip deal was found by Cheapflights users on 11/13. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/33:00 pm -
1 stop9h 15m
Mon 12/711:00 am -
3 stops23h 30m
Deal found 11/13![Multiple Airlines logo]()
$567
This Frontier deal was found by Cheapflights users on 11/11. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 12/2112:20 pm -
2 stops21h 41m
Sun 1/37:10 pm -
1 stop13h 55m
Deal found 11/11![Frontier logo]()
$592
This Avianca deal was found by Cheapflights users on 11/12. 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 Avianca is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 11/173:10 pm -
1 stop7h 40m
Tue 11/2410:45 pm -
1 stop8h 05m
Deal found 11/12![Avianca logo]()
$594
This Gotogate deal was found by Cheapflights users on 11/12. 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 Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/243:00 pm -
1 stop9h 15m
Fri 1/112:05 am -
1 stop20h 39m
Deal found 11/12![Multiple Airlines logo]()
$598
This Mytrip deal was found by Cheapflights users on 11/12. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 12/53:00 pm -
1 stop9h 15m
Tue 12/86:37 pm -
2 stops15h 53m
Deal found 11/12![Multiple Airlines logo]()
$600
This United Airlines deal was found by Cheapflights users on 11/13. 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 12/198:45 am -
1 stop15h 26m
Tue 1/121:40 pm -
1 stop16h 52m
Deal found 11/13![United Airlines logo]()
$607
Best flights from San José to OntarioDiscover carefully curated flight deals from San José to Ontario that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated November 14, 2026.
Discover carefully curated flight deals from San José to Ontario that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated November 14, 2026.
This United Airlines deal was found by Cheapflights users on 11/10. 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.
Wed 3/178:40 am -
1 stop15h 19m
Tue 4/66:00 am -
1 stop24h 15m
Deal found 11/10![United Airlines logo]()
$597
This United Airlines deal was found by Cheapflights users on 11/9. 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 1/191:15 am -
2 stops21h 45m
Wed 2/32:00 pm -
2 stops26h 16m
Deal found 11/9![United Airlines logo]()
$597
This United Airlines deal was found by Cheapflights users on 11/12. 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 12/182:25 pm -
1 stop9h 46m
Sun 1/177:00 am -
1 stop27h 15m
Deal found 11/12![United Airlines logo]()
$607
This United Airlines deal was found by Cheapflights users on 11/13. 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.
Wed 12/232:25 pm -
2 stops24h 17m
Sun 1/106:37 pm -
2 stops16h 45m
Deal found 11/13![United Airlines logo]()
$607
This United Airlines deal was found by Cheapflights users on 11/13. 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 12/128:45 am -
2 stops29h 49m
Sun 1/106:37 pm -
2 stops16h 45m
Deal found 11/13![United Airlines logo]()
$607
This United Airlines deal was found by Cheapflights users on 11/10. 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.
Wed 12/232:25 pm -
2 stops24h 17m
Tue 1/266:00 am -
1 stop10h 16m
Deal found 11/10![United Airlines logo]()
$607
This United Airlines deal was found by Cheapflights users on 11/13. 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 4/2711:13 am -
2 stops26h 27m
Wed 5/55:00 am -
2 stops13h 37m
Deal found 11/13![United Airlines logo]()
$618
This United Airlines deal was found by Cheapflights users on 11/13. 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.
Wed 1/201:15 am -
2 stops21h 45m
Thu 1/286:00 am -
1 stop10h 16m
Deal found 11/13![United Airlines logo]()
$618
This United Airlines deal was found by Cheapflights users on 11/12. 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.
Wed 2/31:15 am -
2 stops18h 20m
Sat 2/131:45 pm -
2 stops21h 37m
Deal found 11/12![United Airlines logo]()
$618
This United Airlines deal was found by Cheapflights users on 11/12. 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 11/268:45 am -
2 stops32h 48m
Thu 12/34:17 pm -
2 stops26h 22m
Deal found 11/12![United Airlines logo]()
$618
This United Airlines deal was found by Cheapflights users on 11/12. 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 4/151:25 pm -
2 stops23h 55m
Mon 4/196:53 pm -
2 stops14h 18m
Deal found 11/12![United Airlines logo]()
$618
Last-minute flights from San José to OntarioDiscover last-minute flight deals from San José to Ontario. Data last updated November 14, 2026 and is based on user searches.
Discover last-minute flight deals from San José to Ontario. Data last updated November 14, 2026 and is based on user searches.
This Avianca deal was found by Cheapflights users on 11/12. 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 Avianca is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 11/173:10 pm -
1 stop7h 40m
Tue 11/2410:45 pm -
1 stop8h 05m
Deal found 11/12![Avianca logo]()
$594
This Mytrip deal was found by Cheapflights users on 11/13. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/33:00 pm -
1 stop9h 15m
Mon 12/711:00 am -
3 stops23h 30m
Deal found 11/13![Multiple Airlines logo]()
$567
This Mytrip deal was found by Cheapflights users on 11/12. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 12/53:00 pm -
1 stop9h 15m
Tue 12/86:37 pm -
2 stops15h 53m
Deal found 11/12![Multiple Airlines logo]()
$600
This Volaris deal was found by Cheapflights users on 11/14. 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 Volaris is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 12/123:00 pm -
1 stop9h 15m
Fri 2/1912:05 am -
1 stop20h 39m
Deal found 11/14![Multiple Airlines logo]()
$328
This Gotogate deal was found by Cheapflights users on 11/13. 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 Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 12/123:00 pm -
1 stop9h 15m
Mon 12/2812:05 am -
1 stop20h 39m
Deal found 11/13![Multiple Airlines logo]()
$566
This United Airlines deal was found by Cheapflights users on 11/13. 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 12/198:45 am -
1 stop15h 26m
Tue 1/121:40 pm -
1 stop16h 52m
Deal found 11/13![United Airlines logo]()
$607
This Frontier deal was found by Cheapflights users on 11/11. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 12/2112:20 pm -
2 stops21h 41m
Sun 1/37:10 pm -
1 stop13h 55m
Deal found 11/11![Frontier logo]()
$592
This Gotogate deal was found by Cheapflights users on 11/13. 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 Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/223:00 pm -
1 stop9h 15m
Fri 1/2912:05 am -
1 stop20h 39m
Deal found 11/13![Multiple Airlines logo]()
$527
This Gotogate deal was found by Cheapflights users on 11/12. 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 Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/243:00 pm -
1 stop9h 15m
Fri 1/112:05 am -
1 stop20h 39m
Deal found 11/12![Multiple Airlines logo]()
$598
One-way flights from San José to OntarioSearch for one-way flight options from San José to Ontario. Find affordable one-way fares based on user searches. Data last updated November 14, 2026.
Search for one-way flight options from San José to Ontario. Find affordable one-way fares based on user searches. Data last updated November 14, 2026.
This CheapOair deal was found by Cheapflights users on 11/13. 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 1/213:00 pm -
1 stop9h 15m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 11/13![Multiple Airlines logo]()
$195
This Booking.com deal was found by Cheapflights users on 11/13. 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 Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 3/113:00 pm -
1 stop9h 15m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 11/13![Multiple Airlines logo]()
$231
This Booking.com deal was found by Cheapflights users on 11/13. 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 Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 1/233:00 pm -
1 stop9h 15m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 11/13![Multiple Airlines logo]()
$245
This Booking.com deal was found by Cheapflights users on 11/12. 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 Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/173:00 pm -
1 stop9h 15m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 11/12![Multiple Airlines logo]()
$252
This CheapOair deal was found by Cheapflights users on 11/10. 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 2/43:00 pm -
1 stop9h 15m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 11/10![Multiple Airlines logo]()
$259
This CheapOair deal was found by Cheapflights users on 11/11. 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/33:00 pm -
1 stop9h 15m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 11/11![Multiple Airlines logo]()
$270
This CheapOair deal was found by Cheapflights users on 11/10. 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/243:00 pm -
1 stop9h 15m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 11/10![Multiple Airlines logo]()
$274
This CheapOair deal was found by Cheapflights users on 11/11. 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 12/123:00 pm -
1 stop9h 15m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 11/11![Multiple Airlines logo]()
$275
Find 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 November 14, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $347 (Volaris) |
One-way from | $195 (CheapOair) |
Popular in | August |
Cheapest in | May |
Average price | $530 |
Cheapflights Fare Finder
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 7,457,451 searches. Data last updated November 14, 2026.
Use the filters below to find and compare flights from San José to Ontario that are best for you.
Fly from
Fly to
Route
Depart
Return
Cheapest round-trip
San JoséOntario
SJO San José Juan Santamaria Intl - ONT Ontario
SJOONT
San José Juan Santamaria Intl
Wed 4/14
12:40 am-9:57 am
1 stop10h 17m
Ontario
Wed 12/31
12:00 am-2:00 am
Nonstop0h 00m
$354
San JoséOntario
SJO San José Juan Santamaria Intl - ONT Ontario
SJOONT
San José Juan Santamaria Intl
Thu 3/11
8:45 am-10:59 pm
2 stops16h 14m
Ontario
Wed 12/31
12:00 am-2:00 am
Nonstop0h 00m
$354
Quickest round-trip
San JoséOntario
SJO San José Juan Santamaria Intl - ONT Ontario
SJOONT
San José Juan Santamaria Intl
Thu 5/6
1:25 pm-9:21 pm
1 stop8h 56m
Ontario
Wed 12/31
12:00 am-2:00 am
Nonstop0h 00m
$354
San JoséOntario
SJO San José Juan Santamaria Intl - ONT Ontario
SJOONT
San José Juan Santamaria Intl
Tue 2/2
8:45 am-9:00 pm
2 stops14h 15m
Ontario
Wed 12/31
12:00 am-2:00 am
Nonstop0h 00m
$359
San JoséOntario
SJO San José Juan Santamaria Intl - ONT Ontario
SJOONT
San José Juan Santamaria Intl
Thu 3/18
11:35 am-8:19 pm
2 stops33h 44m
Ontario
Wed 12/31
12:00 am-2:00 am
Nonstop0h 00m
$360
San JoséOntario
SJO San José Juan Santamaria Intl - ONT Ontario
SJOONT
San José Juan Santamaria Intl
Tue 3/16
1:25 pm-12:20 pm
2 stops23h 55m
Ontario
Wed 12/31
12:00 am-2:00 am
Nonstop0h 00m
$379
San JoséOntario
SJO San José Juan Santamaria Intl - ONT Ontario
SJOONT
San José Juan Santamaria Intl
Fri 3/19
7:45 am-8:19 pm
2 stops37h 34m
Ontario
Wed 12/31
12:00 am-2:00 am
Nonstop0h 00m
$379
San JoséOntario
SJO San José Juan Santamaria Intl - ONT Ontario
SJOONT
San José Juan Santamaria Intl
Tue 12/22
1:15 am-10:11 pm
1 stop22h 56m
Ontario
Wed 12/31
12:00 am-2:00 am
Nonstop0h 00m
$392
San JoséOntario
SJO San José Juan Santamaria Intl - ONT Ontario
SJOONT
San José Juan Santamaria Intl
Thu 12/17
9:40 am-5:46 pm
1 stop10h 06m
Ontario
Wed 12/31
12:00 am-2:00 am
Nonstop0h 00m
$392
San JoséOntario
SJO San José Juan Santamaria Intl - ONT Ontario
SJOONT
San José Juan Santamaria Intl
Wed 12/16
2:25 pm-12:42 pm
2 stops24h 17m
Ontario
Wed 12/31
12:00 am-2:00 am
Nonstop0h 00m
$398
Showing 1-10 of 23 resultsSorted by cheapest first
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 November.
| 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-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-Ontario flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from San José-Ontario flight searches over the past month and is updated monthly.
- Most trusted provider: When it comes to deals on San José-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-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.
SJO-ONT
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 San José to Ontario
How far ahead should I book a flight from San José to Ontario?
The best time to book flights from San José to Ontario is 80 days before your desired departure date. The cost of your flight will likely increase significantly if you book two weeks in advance of your flight.
What is the cheapest month to book a flight from San José to Ontario?
Currently, May is the cheapest month in which you can book a flight from San José to Ontario (average of $383). Flying from San José to Ontario in August is currently the most expensive (average of $894). 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.
How much does it cost to fly round-trip from San José to Ontario?
Airfare is below average for this route at the moment.
San José to Ontario flights typically cost between $393 and $636 in December.The cheapest round-trip price found within the last 5 days was $328 on Multiple Airlines (Dec 12-Feb 19).
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 November 14, 2026.
Peruse reviews from past customers who have flown with United Airlines and Avianca from San José to Ontario to help guide your decision. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
Crew
8.1
Overall
7.3
Entertainment
7.1
Boarding
7.7
Food
6.7
Comfort
7.3
Reviews
1 / 20
10.0
ExcellentAnonymous,Sep 2025
FRA - SFO
Crew
8.1
Overall
7.3
Entertainment
7.1
Boarding
7.7
Food
6.7
Comfort
7.3
Reviews
1 / 20
10.0
ExcellentAnonymous,Sep 2025
FRA - SFO
Crew
8.1
Overall
7.3
Entertainment
7.1
Boarding
7.7
Food
6.7
Comfort
7.3
Reviews
1 / 20
10.0
ExcellentAnonymous,Sep 2025
FRA - SFO
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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Complete your trip
Complete your trip to Ontario by adding a car rental and/or hotel reservation to your travel itinerary.
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Other flights to Ontario
Explore flights to Ontario departing from other origins. Flights are based on user searches made on Cheapflights and were last updated on November 14, 2026.
San José and Ontario flights
Browse other San José and Ontario flight options. Last updated on November 14, 2026.
Other flights from San José
Browse through other flights departing from San José. Flights are based on user searches made on Cheapflights and were last updated on November 14, 2026.
Popular flight searches
Check out other popular destinations found by fellow travelers in 2026
Top 2 airlines flying from San José to Ontario
Discover the top 2 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 7,457,451 searches. Data last updated November 14, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$267 | Average$494 | FlexibilityNo cancel fee | On-time69% | |
| Cheapest$387 | Average$530 | FlexibilityNo cancel fee | On-time71% |