ONT → SMFOntario to Sacramento

live

Direct flights from Ontario (ONT) to Sacramento (SMF): 7 nonstop departures observed each week across 1 airline. 72% of the last 29 operated flights arrived within 15 minutes of schedule. The median arrival is 3 minutes late. No cancellations were recorded across the 29 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 16 October 2026 at 05:18 UTC.

ONT Ontario disrupted · +64
SMF Sacramento busy · +17
627 km · ~1h 18m est.
dep bank 06:20–20:557x weekly
Runs mixed · 1 airline · 7x weekly · nonstop
72% on time

of the last 29 operated ONT → SMF flights arrived within 15 minutes

Median arrival delay is +3 min. 0 of 29 tracked legs cancelled in the sample. Will a delayed flight be cancelled? →

Median arrival+3 minacross the last 29 operated legs
Flight time~1h 18mestimated from route distance
Weekly departures7x1 direct airline on the leg
Cancelled0.0%recent route rate · 0 of 29

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 AirlinesWN72% on time

Flights WN3305 06:20 Su · WN3283 varies Mo Tu We Th Fr Sa · WN1540 07:05 Tu We · WN956 09:45 Mo Th Fr

History

operated legs · board outcomes
10-15WN1272dep +11 → arr−16
10-15WN1274dep +33 → arr+8
10-15WN235dep +28 → arr+0
10-15WN3283dep +23 → arr−5
10-15WN3289dep +66 → arr+46
10-15WN855dep +29 → arr+4
10-15WN956dep +20 → arr−1
10-14WN1540dep +7 → arr−26
10-14WN3029dep +1 → arr+1
10-14WN3283dep +11 → arr−12
10-14WN498dep +125 → arr+4
10-14WN539departed+25
10-14WN984dep +7 → arr+9
10-13WN1540dep +9 → arr−22
10-13WN3283dep +6 → arr−17
10-13WN539dep +7 → arr+130
10-13WN984dep +29 → arr+21
10-12WN1272departed+47
10-12WN1274dep +129 → arr+273
10-12WN3283dep +8 → arr−24
10-12WN3289departed+2
10-12WN855departed+0
10-12WN956dep +5 → arr−22
10-11WN1184dep +47 → arr+16
10-11WN1272departed+1
10-11WN3289departed+3
10-11WN3305departed+4
10-11WN4021departed+6
10-11WN855departed+41

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 +64 min disrupted 🌤 clear · NE 20 kt Full ONT delay board →
SMFSacramento +17 min busy 🌤 clear · W 3 kt Full SMF delay board →

Weather lens

Current conditions put the pressure at ONT and SMF: 43% odds of a 15+ minute delay and around +8 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 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
https://proflightsearch.com/search-flights/ONT-SMF
How we measure this →

ONT to SMF questions

Is ONT–SMF running on time right now?

Significant delay risk. The departure side at ONT is the weaker end, route health score 46/100. 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 06:20 and evening departures around 17:45 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 42 flights a week (daily). Since one carrier owns the route, a single disruption tends to ripple through the day.