Flights Ontario → Sacramento
ONT → SMF
Route overview
The flight route from Ontario to Sacramento operates with an average on-time performance of 80%, with flights typically experiencing a mean delay of 8.9 minutes. Over the course of a year, this route sees approximately 519 total flights using Boeing 737-300 aircraft, serving a destination airport that handles around 12,313,370 passengers annually.
Your rights on this US flight (DOT)
US flights have no statutory cash compensation for delays. Under the US DOT rules, if your flight is cancelled or significantly changed and you decline rebooking, you're owed an automatic refund of the unused ticket. The tarmac-delay limit is 3 hours (domestic) / 4 hours (international). Amenities for controllable delays depend on each airline's contract of carriage.
US flight refund rules & checker →General information, not legal advice.
The Ontario (ONT) → Sacramento (SMF) route is operated by Southwest Airlines. Across 652 flights monitored in recent months, 80% arrived on time (within 15 min of schedule), with an average delay of 9 minutes. The cancellation rate is 0.15%. FlightGuard's average computed risk is 23.8/100 (medium), updated in real time from weather, ATC delays, strikes, NOTAMs, fuel and flight history. At Sacramento the average ATFM delay is 2.0 minutes (main cause: atfm). Departing from Ontario the average ATFM delay is 2.0 minutes.
Heading to Sacramento: what to expect in this direction
Flying from Ontario (ONT) to Sacramento (SMF) heads north-west for about 627 km, a flight time of roughly 1h 12m.
Departures from Ontario on this leg cluster in the overnight window: about 46% of ONT-SMF flights take off then.
Air-traffic congestion: departing Ontario the average ATFM delay is 2.0 min (airspace/NAS (BTS)); arriving into Sacramento it is 2.0 min (atfm).
Across 652 tracked ONT-SMF flights, 80% left on time with an average delay of 9 min and a 0.1% cancellation rate.
Route facts
Flights on this route
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Airline punctuality on this route
| Airline | On-time | Average delay | Cancellations |
|---|---|---|---|
| Southwest Airlines (WN) | 73% | 6 min | 3.1% |
Airlines operating ONT-SMF
Airports
Frequently asked questions about ONT-SMF
On the Ontario (ONT) -> Sacramento (SMF) route, on-time performance is 80% with an average delay of 9 minutes, based on 652 tracked flights.
The cancellation rate on Ontario-Sacramento is 0.15% across 652 monitored flights.
The route is operated by 1 airline: Southwest Airlines.
Enter your flight number on FlightGuard for a real-time analysis based on 9 factors: weather at Sacramento, ATC delays, strikes, NOTAMs, fuel, airline punctuality and recent trends.
US flights have no statutory cash compensation for delays. Under US DOT rules, if the airline cancels or significantly changes your flight and you decline rebooking, you're owed an automatic refund of the unused ticket. The tarmac-delay limit is 3 hours (domestic) / 4 hours (international). Meals or hotels for controllable delays depend on each airline's contract of carriage.
