Delta Air LinesDL88% on time
Flights DL2708 06:00 daily · DL3974 09:43 Mo Th Fr Su · DL1173 13:04 Tu We Th · DL3172 13:06 daily
live
Direct flights from Ontario (ONT) to Salt Lake City (SLC): 7 nonstop departures observed each week across 1 airline. 88% of the last 26 operated flights arrived within 15 minutes of schedule. The median arrival is 21 minutes early. No cancellations were recorded across the 26 tracked flights. The nonstop covers 898 km, an estimated 1 hour 39 minutes in the air. Measured by Pro Flight Search from live flight boards at Ontario and Salt Lake City. Updated 10 September 2026 at 21:48 UTC.
ONT
Ontario
smooth · +7
SLC
Salt Lake City
smooth · +0
898 km · ~1h 39m est.
Runs reliable · 1 airline · 7x weekly · nonstop
88% on time
of the last 26 operated ONT → SLC flights arrived within 15 minutes
Median arrival delay is −21 min. 0 of 26 tracked legs cancelled in the sample. Will a delayed flight be cancelled? →
Median arrival−21 minacross the last 26 operated legs
Flight time~1h 39mestimated from route distance
Weekly departures7x1 direct airline on the leg
Cancelled0.0%recent route rate · 0 of 26
The week
scheduled departures · origin local time06121824
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Delta Air Lines
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 ONT: 37% odds of a 15+ minute delay, 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 Salt Lake City route actually runs
Pro Flight Search records official board updates for nonstop ONT to SLC 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 Salt Lake City (SLC) route reliability, measured from operated flights on official airport boards.
Canonical URL
How we measure this →
https://proflightsearch.com/search-flights/ONT-SLC
ONT to SLC questions
Is ONT–SLC 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–SLC?
Operators schedule morning departures around 06:00 and evening departures around 17:05 from ONT. Earlier flights typically land before destination-airport delays accumulate later in the day; check the SLC delay card to confirm conditions when you'd arrive.
How long is the flight from ONT to SLC?
Great-circle distance is 898 km. With typical jet cruise speed plus taxi, climb and descent, expect roughly 93–107 min gate-to-gate on this route.
How often does ONT–SLC fly?
Delta Air Lines runs the route with about 30 flights a week (daily). Since one carrier owns the route, a single disruption tends to ripple through the day.
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