SMF → ONTSacramento to Ontario

live

Direct flights from Sacramento (SMF) to Ontario (ONT): 42 nonstop departures observed each week across 1 airline. 82% of the last 39 tracked flights arrived within 15 minutes of schedule. The median arrival is 11 minutes early. No cancellations were recorded across the 41 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 Sacramento and Ontario. Updated 29 October 2026 at 05:18 UTC.

SMF Sacramento busy · +18
ONT Ontario smooth · +9
627 km · ~1h 18m est.
dep bank 06:05–20:4542x weekly
Runs reliable · 1 airline · 42x weekly · nonstop
82% on time

of the last 39 tracked SMF → ONT flights arrived within 15 minutes

Median arrival delay is −11 min. 0 of 41 tracked legs cancelled in the sample. Will a delayed flight be cancelled? →

Median arrival−11 minacross the last 39 arrivals
Flight time~1h 18mestimated from route distance
Weekly departures42x1 direct airline on the leg
Cancelled0.0%recent route rate · 0 of 41

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 AirlinesWN82% on time

Flights WN969 06:05 Mo Th Fr · WN738 06:25 Tu We · WN3935 08:00 Su · WN743 08:55 Tu We

History

operated legs · board outcomes
10-28WN2804dep +4 → arr−19
10-28WN3047dep +50 → arr+32
10-28WN3672dep +10 → arr−11
10-28WN3955departed+76
10-28WN738dep +7 → arr−13
10-28WN743dep +2 → arr−21
10-27WN2804dep +10 → arr−11
10-27WN3047dep +16 → arr−9
10-27WN3672dep +17 → arr−10
10-27WN3955dep +6 → arr−16
10-27WN738dep +22 → arr−9
10-27WN743dep +15 → arr−16
10-26WN1095dep +9 → arr−14
10-26WN3947dep +11 → arr−18
10-26WN3948dep +8 → arr−20
10-26WN3949dep +16 → arr−9
10-26WN3950dep +66 → arr+41
10-26WN3955dep +18 → arr−3
10-26WN969dep +10 → arr−14
10-25WN2123dep +5 → arr−18
10-25WN2342departed+38
10-25WN3935dep +1 → arr−24
10-25WN3949dep +6 → arr−16
10-25WN3955arrived+7
10-24WN1095dep +22 → arr−2
10-24WN2034dep +39 → arr+14
10-24WN207dep +8 → arr−20
10-23WN1095dep +9 → arr−15
10-23WN3947dep +11 → arr−18
10-23WN3948dep +9 → arr−20
10-23WN3949dep +25 → arr−2
10-23WN3950dep +61 → arr+40
10-23WN3955dep +50 → arr+18
10-23WN969dep +11 → arr−13
10-22WN1095dep +29 → arr+5
10-22WN3947dep +10 → arr−13
10-22WN3948dep +42 → arr+19
10-22WN3949dep +78 → arr+57
10-22WN3950dep +38 → arr+15
10-22WN3955dep +166 → arr+135

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
SMFSacramento +18 min busy 🌤 scattered clouds · NE 3 kt Full SMF delay board →
ONTOntario +9 min smooth ⛅ mostly cloudy · N 0 kt Full ONT delay board →

Weather lens

Conditions are tightest at SMF: a 39% chance of a 15+ minute delay. In this weather, the more delayed of the two airports is typically about +8 min. Both figures come from the two airports' delay records in similar weather. See live delays → · Weather risk by airport →

How the Sacramento to Ontario route actually runs

Pro Flight Search records official board updates for nonstop SMF 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: Sacramento (SMF) to Ontario (ONT) route reliability, measured from operated flights on official airport boards.

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

SMF to ONT questions

Is SMF–ONT running on time right now?

Mostly on schedule. The departure side at SMF is the weaker end, route health score 81/100. The airports section above carries the live status and delay window at both ends.

Morning or evening flight on SMF–ONT?

Operators schedule morning departures around 06:05 and evening departures around 19:00 from SMF. 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 SMF to ONT?

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 SMF–ONT fly?

Southwest Airlines runs the route with about 42 flights a week (daily). Since one carrier owns the route, a single disruption tends to ripple through the day.