Southwest AirlinesWN70% on time
Flights WN2737 06:10 Mo Th Fr Sa Su · WN694 06:10 Sa · WN1121 07:15 Tu We Su · WN4416 09:10 Tu We Su
live
Direct flights from Ontario (ONT) to Sacramento (SMF): 7 nonstop departures observed each week across 1 airline. 70% of the last 23 operated flights arrived within 15 minutes of schedule. The median arrival is 13 minutes early. No cancellations were recorded across the 23 tracked flights. The nonstop covers 627 km, an estimated 1 hour 18 minutes in the air. Measured by Pro Flight Search from live flight boards at Ontario and Sacramento. Updated 15 September 2026 at 05:18 UTC.
ONT
Ontario
busy · +26
SMF
Sacramento
smooth · +13
627 km · ~1h 18m est.
Runs mixed · 1 airline · 7x weekly · nonstop
70% on time
of the last 23 operated ONT → SMF flights arrived within 15 minutes
Median arrival delay is −13 min. 0 of 23 tracked legs cancelled in the sample. Will a delayed flight be cancelled? →
Median arrival−13 minacross the last 23 operated legs
Flight time~1h 18mestimated from route distance
Weekly departures7x1 direct airline on the leg
Cancelled0.0%recent route rate · 0 of 23
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 outcomesActual 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 SMF: 35% odds of a 15+ minute delay and around +5 min expected when it bites, measured from this route's own weather-matched delay history. See live delays → · Weather risk by airport →
next sweep in 120s
How the Ontario to Sacramento route actually runs
Pro Flight Search records official board updates for nonstop ONT to SMF 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 Sacramento (SMF) route reliability, measured from operated flights on official airport boards.
Canonical URL
How we measure this →
https://proflightsearch.com/search-flights/ONT-SMF
ONT to SMF questions
Is ONT–SMF running on time right now?
Mostly on schedule. The departure side at ONT is the weaker end, route health score 74/100. The airports section above carries the live status and delay window at both ends.
Morning or evening flight on ONT–SMF?
Operators schedule morning departures around 06:10 and evening departures around 18:30 from ONT. Earlier flights typically land before destination-airport delays accumulate later in the day; check the SMF delay card to confirm conditions when you'd arrive.
How long is the flight from ONT to SMF?
Great-circle distance is 627 km. With typical jet cruise speed plus taxi, climb and descent, expect roughly 74–84 min gate-to-gate on this route.
How often does ONT–SMF fly?
Southwest Airlines runs the route with about 41 flights a week (daily). Since one carrier owns the route, a single disruption tends to ripple through the day.
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