ONT → SJCOntario to San Jose

live

Direct flights from Ontario (ONT) to San Jose (SJC): 7 nonstop departures observed each week across 1 airline. 74% of the last 23 operated flights arrived within 15 minutes of schedule. The median arrival is 2 minutes early. No cancellations were recorded across the 23 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 Ontario and San Jose. Updated 24 October 2026 at 17:18 UTC.

Today, ONT → SJC

Sat 24 Oct · local times
  1. 07:35 WN1182Southwest Left 07:52 +17 Landed 08:43 −7
  2. 11:30 WN3242Southwest Est. 11:30Departure not confirmed by the board SJC est. 12:47 +7sched 12:40

Checked ONT board 10:18 · SJC board 10:03

ONT Ontario smooth · +8
SJC San Jose smooth · +0
536 km · ~1h 11m est.
dep bank 05:50–19:057x weekly
Runs mixed · 1 airline · 7x weekly · nonstop
74% on time

of the last 23 operated ONT → SJC flights arrived within 15 minutes

Median arrival delay is −2 min. 0 of 23 tracked legs cancelled in the sample. Will a delayed flight be cancelled? →

Median arrival−2 minacross the last 23 operated legs
Flight time~1h 11mestimated from route distance
Weekly departures7x1 direct airline on the leg
Cancelled0.0%recent route rate · 0 of 23

The week

scheduled departures · origin local time
06121824
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 days
Southwest AirlinesWN77% on time

Flights WN1282 05:50 Su · WN1182 varies Mo Tu We Th Fr Sa · WN3280 11:00 Mo Th Fr Su · WN2843 11:25 Tu We

History

operated legs · board outcomes
10-24WN1182dep +17 → arr−7
10-23WN1182dep +16 → arr−7
10-23WN3280dep +11 → arr−12
10-23WN3281dep +28 → arr+12
10-23WN3282dep +46 → arr+30
10-22WN1182dep +4 → arr−24
10-22WN3280dep +47 → arr+23
10-22WN3281dep +76 → arr+58
10-22WN3282dep +53 → arr+34
10-21WN1182dep +12 → arr−16
10-21WN2843dep +33 → arr+12
10-21WN3282dep +26 → arr+4
10-20WN2843dep +7 → arr−17
10-20WN3282dep +29 → arr+6
10-19WN1182dep +25 → arr−2
10-19WN3280dep +16 → arr−12
10-19WN3281dep +3 → arr−19
10-19WN3282dep +10 → arr−12
10-18LXJ486dep +25 → arr+29
10-18WN1282dep +1 → arr−25
10-18WN3280dep +7 → arr−15
10-18WN3282dep +19 → arr−1
10-18WN4020dep +72 → arr+69

Actual board outcomes rather than schedules, paired departure and arrival per flight and day.

Full board history, day by day →

Airports right now

live boards
ONTOntario +8 min smooth 🌤 few clouds · NW 5 kt Full ONT delay board →
SJCSan Jose +0 min smooth 🌤 clear · W 4 kt Full SJC delay board →

Weather lens

Current conditions put the pressure at ONT and SJC: 45% odds of a 15+ minute delay and around +9 min expected when it bites, measured from this route's own weather-matched delay history. See live delays → · Weather risk by airport →

How the Ontario to San Jose route actually runs

Pro Flight Search records official board updates for nonstop ONT to SJC 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 — Ontario (ONT) to San Jose (SJC) route reliability, measured from operated flights on official airport boards.

Canonical URL
https://proflightsearch.com/search-flights/ONT-SJC
How we measure this →

ONT to SJC questions

Is ONT–SJC running on time right now?

Smooth skies ahead. The departure side at ONT 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 ONT–SJC?

Operators schedule morning departures around 05:50 from ONT. Earlier flights typically land before destination-airport delays accumulate later in the day; check the SJC delay card to confirm conditions when you'd arrive.

How long is the flight from ONT to SJC?

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 ONT–SJC fly?

Southwest Airlines runs the route with about 25 flights a week (daily). Since one carrier owns the route, a single disruption tends to ripple through the day.