$253+ Cheap flights from Ontario (ONT) to San José (SJO)
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 10/26. Fares are subject to change and may not be available on all flights or dates of travel.
ONT — SJO
Nov 8 — Nov 151
Round-trip
1 adult, Economy
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Find cheap flights from Ontario to San José 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.Cheap flight deals from Ontario to San José
Cheapest
Best
Last-minute
One-way
Cheapest flights from Ontario to San JoséExplore the most affordable flight options available from Ontario to San José. Find the lowest fares from popular airlines and budget airlines, with prices last updated on October 9, 2026.
Explore the most affordable flight options available from Ontario to San José. Find the lowest fares from popular airlines and budget airlines, with prices last updated on October 9, 2026.
This Avianca deal was found by Cheapflights users on 10/4. 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 11/310:45 pm -
1 stop8h 05m
Tue 11/109:45 am -
1 stop13h 05m
Deal found 10/4![Avianca logo]()
$579
This Avianca deal was found by Cheapflights users on 10/6. 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 10/2011:35 pm -
1 stop8h 10m
Tue 11/33:10 pm -
1 stop7h 40m
Deal found 10/6![Avianca logo]()
$580
This Avianca deal was found by Cheapflights users on 10/8. 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.
Thu 11/510:45 pm -
1 stop8h 05m
Thu 11/123:10 pm -
1 stop7h 40m
Deal found 10/8![Avianca logo]()
$589
This Avianca deal was found by Cheapflights users on 10/8. 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.
Thu 10/2211:35 pm -
1 stop8h 10m
Tue 11/179:45 am -
1 stop13h 05m
Deal found 10/8![Avianca logo]()
$599
This Avianca deal was found by Cheapflights users on 10/7. 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.
Thu 10/2211:35 pm -
1 stop8h 10m
Thu 11/199:45 am -
1 stop13h 05m
Deal found 10/7![Avianca logo]()
$600
This American Airlines deal was found by Cheapflights users on 10/6. 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.
Mon 11/3011:59 pm -
1 stop11h 47m
Fri 12/111:42 pm -
1 stop11h 11m
Deal found 10/6![American Airlines logo]()
$601
This Avianca deal was found by Cheapflights users on 10/9. 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 Avianca is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 11/710:45 pm -
1 stop8h 05m
Sat 11/143:10 pm -
1 stop7h 40m
Deal found 10/9![Avianca logo]()
$609
This Super.com deal was found by Cheapflights users on 10/5. 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 Super.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/2711:45 pm -
1 stop10h 40m
Sat 10/319:45 am -
1 stop13h 05m
Deal found 10/5![Avianca logo]()
$610
This Super.com deal was found by Cheapflights users on 10/5. 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 Super.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 11/1010:45 pm -
1 stop10h 40m
Thu 12/103:10 pm -
1 stop7h 40m
Deal found 10/5![Avianca logo]()
$616
This Super.com deal was found by Cheapflights users on 10/7. 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 Super.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/2411:35 pm -
1 stop10h 50m
Tue 10/279:45 am -
1 stop13h 05m
Deal found 10/7![Avianca logo]()
$620
Best flights from Ontario to San JoséDiscover carefully curated flight deals from Ontario to San José that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated October 9, 2026.
Discover carefully curated flight deals from Ontario to San José that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated October 9, 2026.
This Delta deal was found by Cheapflights users on 10/5. 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.
Mon 11/1611:10 pm -
1 stop12h 02m
Thu 12/37:00 am -
1 stop16h 55m
Deal found 10/5![Delta logo]()
$674
This United Airlines deal was found by Cheapflights users on 10/6. 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 11/276:00 am -
1 stop12h 39m
Sat 12/59:40 am -
1 stop9h 56m
Deal found 10/6![United Airlines logo]()
$769
This United Airlines deal was found by Cheapflights users on 10/6. 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 10/184:03 pm -
1 stop14h 12m
Fri 10/231:25 pm -
1 stop9h 34m
Deal found 10/6![United Airlines logo]()
$781
This United Airlines deal was found by Cheapflights users on 10/4. 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 10/151:52 pm -
1 stop16h 23m
Sun 10/188:45 am -
1 stop12h 46m
Deal found 10/4![United Airlines logo]()
$781
This United Airlines deal was found by Cheapflights users on 10/4. 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 11/34:17 pm -
1 stop14h 15m
Thu 11/58:45 am -
2 stops16h 03m
Deal found 10/4![United Airlines logo]()
$785
This United Airlines deal was found by Cheapflights users on 10/6. 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 10/171:52 pm -
2 stops21h 29m
Sat 10/248:45 am -
1 stop15h 06m
Deal found 10/6![United Airlines logo]()
$785
This United Airlines deal was found by Cheapflights users on 10/7. 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 10/234:03 pm -
1 stop14h 12m
Tue 10/277:45 am -
1 stop14h 55m
Deal found 10/7![United Airlines logo]()
$796
This United Airlines deal was found by Cheapflights users on 10/8. 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 10/231:52 pm -
1 stop16h 23m
Wed 11/189:40 am -
1 stop10h 21m
Deal found 10/8![United Airlines logo]()
$801
This United Airlines deal was found by Cheapflights users on 10/8. 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 11/124:17 pm -
1 stop14h 15m
Sun 11/228:45 am -
1 stop14h 56m
Deal found 10/8![United Airlines logo]()
$801
This United Airlines deal was found by Cheapflights users on 10/8. 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 10/136:00 am -
1 stop12h 37m
Sat 10/178:45 am -
1 stop10h 01m
Deal found 10/8![United Airlines logo]()
$801
This United Airlines deal was found by Cheapflights users on 10/8. 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 11/86:37 pm -
1 stop11h 55m
Mon 11/239:40 am -
1 stop12h 35m
Deal found 10/8![United Airlines logo]()
$801
This United Airlines deal was found by Cheapflights users on 10/5. 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 10/194:03 pm -
2 stops19h 18m
Mon 10/267:45 am -
1 stop14h 55m
Deal found 10/5![United Airlines logo]()
$804
Last-minute flights from Ontario to San JoséDiscover last-minute flight deals from Ontario to San José. Data last updated October 9, 2026 and is based on user searches.
Discover last-minute flight deals from Ontario to San José. Data last updated October 9, 2026 and is based on user searches.
This Avianca deal was found by Cheapflights users on 10/6. 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 10/2011:35 pm -
1 stop8h 10m
Tue 11/33:10 pm -
1 stop7h 40m
Deal found 10/6![Avianca logo]()
$580
This Avianca deal was found by Cheapflights users on 10/8. 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.
Thu 10/2211:35 pm -
1 stop8h 10m
Tue 11/179:45 am -
1 stop13h 05m
Deal found 10/8![Avianca logo]()
$599
This Avianca deal was found by Cheapflights users on 10/7. 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.
Thu 10/2211:35 pm -
1 stop8h 10m
Thu 11/199:45 am -
1 stop13h 05m
Deal found 10/7![Avianca logo]()
$600
This Super.com deal was found by Cheapflights users on 10/7. 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 Super.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/2411:35 pm -
1 stop10h 50m
Tue 10/279:45 am -
1 stop13h 05m
Deal found 10/7![Avianca logo]()
$620
This Super.com deal was found by Cheapflights users on 10/5. 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 Super.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/2711:45 pm -
1 stop10h 40m
Sat 10/319:45 am -
1 stop13h 05m
Deal found 10/5![Avianca logo]()
$610
This Avianca deal was found by Cheapflights users on 10/4. 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 11/310:45 pm -
1 stop8h 05m
Tue 11/109:45 am -
1 stop13h 05m
Deal found 10/4![Avianca logo]()
$579
This Avianca deal was found by Cheapflights users on 10/8. 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.
Thu 11/510:45 pm -
1 stop8h 05m
Thu 11/123:10 pm -
1 stop7h 40m
Deal found 10/8![Avianca logo]()
$589
This Avianca deal was found by Cheapflights users on 10/9. 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 Avianca is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 11/710:45 pm -
1 stop8h 05m
Sat 11/143:10 pm -
1 stop7h 40m
Deal found 10/9![Avianca logo]()
$609
This Super.com deal was found by Cheapflights users on 10/5. 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 Super.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 11/1010:45 pm -
1 stop10h 40m
Thu 12/103:10 pm -
1 stop7h 40m
Deal found 10/5![Avianca logo]()
$616
This American Airlines deal was found by Cheapflights users on 10/6. 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.
Mon 11/3011:59 pm -
1 stop11h 47m
Fri 12/111:42 pm -
1 stop11h 11m
Deal found 10/6![American Airlines logo]()
$601
One-way flights from Ontario to San JoséSearch for one-way flight options from Ontario to San José. Find affordable one-way fares based on user searches. Data last updated October 9, 2026.
Search for one-way flight options from Ontario to San José. Find affordable one-way fares based on user searches. Data last updated October 9, 2026.
This American Airlines deal was found by Cheapflights users on 10/5. 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.
Mon 10/262:22 pm -
1 stop22h 38m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/5![American Airlines logo]()
$253
This Southwest deal was found by Cheapflights users on 10/7. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/28:45 pm -
2 stops13h 35m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/7![Southwest logo]()
$288
This American Airlines deal was found by Cheapflights users on 10/5. 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.
Tue 12/810:30 pm -
1 stop12h 07m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/5![American Airlines logo]()
$298
This American Airlines deal was found by Cheapflights users on 10/6. 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.
Tue 11/171:23 pm -
2 stops21h 38m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/6![American Airlines logo]()
$308
This American Airlines deal was found by Cheapflights users on 10/6. 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 11/2811:59 pm -
1 stop11h 47m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/6![American Airlines logo]()
$315
This American Airlines deal was found by Cheapflights users on 10/5. 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 11/279:20 am -
2 stops11h 29m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/5![American Airlines logo]()
$317
This Delta deal was found by Cheapflights users on 10/5. 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.
Tue 10/2711:56 am -
2 stops23h 04m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/5![Delta logo]()
$323
This Kiwi.com deal was found by Cheapflights users on 10/5. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/2810:35 am -
2 stops24h 40m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/5![Multiple Airlines logo]()
$332
This United Airlines deal was found by Cheapflights users on 10/8. 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 10/264:17 pm -
1 stop14h 15m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/8![United Airlines logo]()
$333
This American Airlines deal was found by Cheapflights users on 10/6. 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 11/112:22 pm -
2 stops20h 45m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/6![American Airlines logo]()
$335
Find flight deals from Ontario to San José
Discover tips and strategies to find the most affordable flight options for your journey from Ontario (ONT) to San José (SJO). 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 October 9, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $579 (Avianca) |
One-way from | $253 (American Airlines) |
Popular in | July |
Cheapest in | December |
Average price | $550 |
Cheapflights Fare Finder
Customize your flight search to find flights from Ontario to San José 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 October 9, 2026.
Use the filters below to find and compare flights from Ontario to San José that are best for you.
Fly from
Fly to
Route
Depart
Return
Cheapest round-trip
OntarioSan José
ONT Ontario - SJO San José Juan Santamaria Intl
ONTSJO
Ontario
Tue 10/27
11:56 am-12:00 pm
2 stops23h 04m
San José Juan Santamaria Intl
Wed 12/31
12:00 am-10:00 pm
Nonstop0h 00m
$323
Quickest round-trip
OntarioSan José
ONT Ontario - SJO San José Juan Santamaria Intl
ONTSJO
Ontario
Thu 11/12
7:05 am-10:15 pm
1 stop13h 10m
San José Juan Santamaria Intl
Wed 12/31
12:00 am-10:00 pm
Nonstop0h 00m
$333
OntarioSan José
ONT Ontario - SJO San José Juan Santamaria Intl
ONTSJO
Ontario
Sat 11/28
6:00 am-10:15 pm
2 stops14h 15m
San José Juan Santamaria Intl
Wed 12/31
12:00 am-10:00 pm
Nonstop0h 00m
$333
OntarioSan José
ONT Ontario - SJO San José Juan Santamaria Intl
ONTSJO
Ontario
Wed 11/11
1:35 pm-8:32 am
1 stop16h 57m
San José Juan Santamaria Intl
Wed 12/31
12:00 am-10:00 pm
Nonstop0h 00m
$368
OntarioSan José
ONT Ontario - SJO San José Juan Santamaria Intl
ONTSJO
Ontario
Sun 11/15
1:35 pm-11:25 am
2 stops19h 50m
San José Juan Santamaria Intl
Wed 12/31
12:00 am-10:00 pm
Nonstop0h 00m
$373
OntarioSan José
ONT Ontario - SJO San José Juan Santamaria Intl
ONTSJO
Ontario
Mon 11/9
1:35 pm-8:32 am
1 stop16h 57m
San José Juan Santamaria Intl
Wed 12/31
12:00 am-10:00 pm
Nonstop0h 00m
$373
OntarioSan José
ONT Ontario - SJO San José Juan Santamaria Intl
ONTSJO
Ontario
Mon 11/16
11:10 pm-1:12 pm
1 stop12h 02m
San José Juan Santamaria Intl
Thu 12/3
7:00 am-9:55 pm
1 stop16h 55m
$674
OntarioSan José
ONT Ontario - SJO San José Juan Santamaria Intl
ONTSJO
Ontario
Fri 11/27
6:00 am-8:39 pm
1 stop12h 39m
San José Juan Santamaria Intl
Sat 12/5
9:40 am-5:36 pm
1 stop9h 56m
$769
OntarioSan José
ONT Ontario - SJO San José Juan Santamaria Intl
ONTSJO
Ontario
Sun 10/18
4:03 pm-7:15 am
1 stop14h 12m
San José Juan Santamaria Intl
Fri 10/23
1:25 pm-9:59 pm
1 stop9h 34m
$781
OntarioSan José
ONT Ontario - SJO San José Juan Santamaria Intl
ONTSJO
Ontario
Thu 10/15
1:52 pm-7:15 am
1 stop16h 23m
San José Juan Santamaria Intl
Sun 10/18
8:45 am-8:31 pm
1 stop12h 46m
$781
Showing 1-10 of 18 resultsSorted by cheapest first
Compare providers for flights from Ontario to San José
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 Ontario to San José in October.
| Provider | Price Accuracy | Trust Score* |
|---|---|---|
| Price Accuracy1 star | Trust Score*3 stars | |
| Price Accuracy3 stars | Trust Score*3 stars | |
| Price Accuracy3 stars | Trust Score*3 stars |
- Most accurate provider: When it comes to deals on Ontario-San José flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Ontario-San José flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Ontario-San José flight searches over the past month and is updated monthly.
- Most trusted provider: When it comes to deals on Ontario-San José 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 Ontario-San José 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 Ontario to San José
Have a flexible travel schedule? Discover the best time to fly to San José from Ontario with our price prediction graph.
ONT-SJO
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 José
Reviews of airlines servicing San José
Get insights into the airlines that provide service to San José. 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 José. Reviews last updated October 9, 2026.
Read reviews from past customers who have flown United Airlines,American Airlines, andAvianca from Ontario to San José. 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
6.7
Comfort
7.3
Overall
7.4
Boarding
7.7
Entertainment
7.1
Crew
8.1
Reviews
1 / 20
4.0
OkayDynasty,May 2026
LAX - EWR
Food
6.7
Comfort
7.3
Overall
7.4
Boarding
7.7
Entertainment
7.1
Crew
8.1
Reviews
1 / 20
4.0
OkayDynasty,May 2026
LAX - EWR
Food
6.7
Comfort
7.3
Overall
7.4
Boarding
7.7
Entertainment
7.1
Crew
8.1
Reviews
1 / 20
4.0
OkayDynasty,May 2026
LAX - EWR
Food
6.7
Comfort
7.3
Overall
7.4
Boarding
7.7
Entertainment
7.1
Crew
8.1
Reviews
1 / 20
4.0
OkayDynasty,May 2026
LAX - EWR
Related info for your journey
Find useful and relevant information for your journey from Ontario to San José. 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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Book flights to San José if you plan to visit one of these locationsAlajuela
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Ontario and San José flights
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Top 3 airlines flying from Ontario to San José
Discover the top 3 airlines that operate flights from Ontario to San José. 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 October 9, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$371 | Average$600 | FlexibilityNo cancel fee | On-time69% | |
| Cheapest$393 | Average$489 | FlexibilityNo cancel fee | On-time71% | |
| Cheapest$404 | Average$529 | FlexibilityNo cancel fee | On-time71% |