Southwest AirlinesWN79% on time
Flights WN2698 06:30 Mo Th Fr Su · WN3608 varies Tu We Sa · WN3500 10:55 Mo Th Fr · WN2882 varies Tu We Sa Su
live
Direct flights from San Jose (SJC) to Ontario (ONT): 7 nonstop departures observed each week across 1 airline. 77% of the last 26 operated flights arrived within 15 minutes of schedule. The median arrival is 6 minutes early. No cancellations were recorded across the 26 tracked flights. The nonstop covers 536 km, an estimated 1 hour 11 minutes in the air. Measured by Pro Flight Search from live flight boards at San Jose and Ontario. Updated 12 September 2026 at 22:18 UTC.
SJC
San Jose
smooth · +8
ONT
Ontario
smooth · +0
536 km · ~1h 11m est.
Runs mixed · 1 airline · 7x weekly · nonstop
77% on time
of the last 26 operated SJC → ONT flights arrived within 15 minutes
Median arrival delay is −6 min. 0 of 26 tracked legs cancelled in the sample. Will a delayed flight be cancelled? →
Median arrival−6 minacross the last 26 operated legs
Flight time~1h 11mestimated from route distance
Weekly departures7x1 direct airline on the leg
Cancelled0.0%recent route rate · 0 of 26
The week
scheduled departures · origin local time06121824
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Southwest Airlines
Each mark is a scheduled departure at its origin-local time, observed operating in the last 7 days. Today is highlighted.
Who flies it
observed on the boards · 7 daysHistory
operated legs · board outcomes09-111I936dep +6 → arr+129
09-091I363dep +0 → arr+2
Actual board outcomes rather than schedules, paired departure and arrival per flight and day.
Full board history, day by day →
Airports right now
live boardsWeather lens
Current conditions put the pressure at SJC and ONT: 43% odds of a 15+ minute delay, measured from this route's own weather-matched delay history. See live delays → · Weather risk by airport →
next sweep in 120s
How the San Jose to Ontario route actually runs
Pro Flight Search records official board updates for nonstop SJC to ONT flights through the day: schedules, estimates, gate pushes and actual departures. The verdict above comes from operated flights, so it reflects what this route does rather than what the timetable promises.
Planning around a delay? Live airport delays · Weather delay risk map · Will a delayed flight be cancelled? · Do planes make up time in the air? · How we measure
Cite this data
Journalists, bloggers, and researchers may cite this page with attribution and a link to Pro Flight Search.
Suggested citation
Pro Flight Search — San Jose (SJC) to Ontario (ONT) route reliability, measured from operated flights on official airport boards.
Canonical URL
How we measure this →
https://proflightsearch.com/search-flights/SJC-ONT
SJC to ONT questions
Is SJC–ONT running on time right now?
Smooth skies ahead. The departure side at SJC is the weaker end, route health score 94/100. The airports section above carries the live status and delay window at both ends.
Morning or evening flight on SJC–ONT?
Operators schedule morning departures around 06:30 and evening departures around 17:00 from SJC. Earlier flights typically land before destination-airport delays accumulate later in the day; check the ONT delay card to confirm conditions when you'd arrive.
How long is the flight from SJC to ONT?
Great-circle distance is 536 km. With typical jet cruise speed plus taxi, climb and descent, expect roughly 68–76 min gate-to-gate on this route.
How often does SJC–ONT fly?
Southwest Airlines runs the route with about 24 flights a week (daily). Since one carrier owns the route, a single disruption tends to ripple through the day.
.