No clear winner: Delta’s SLC → ONT flights land within a few points of 9 in 10 on time whatever the hour.
Time of day × airport
Share of this route’s flights leaving within 15 minutes, by airport and scheduled departure hour, over Aug 2025 – Jul 2026. Blank: no flights then (or fewer than 40 in the year).
Pick an hour to see this route’s flights leaving then.
Flights, best and worst
Flights in the Jun 6 – Jul 31, 2026 schedule that ran 150+ times in the year. Times are local. Pick a flight for its history.
| DL 1614 | SLC 22:59 | ONT 23:48 | 89% |
All 6 Delta flights in the current schedule
Every flight that flew in the Jun 6 – Jul 31, 2026 schedule, with its record over Aug 2025 – Jul 2026. Times are local. Click a column to sort.
| DL 1302 | SLC 08:00 | ONT 08:47 | 1h 47m | 66 | 97% | 1.5% | 23 min |
| DL 3172 | SLC 11:19 | ONT 12:10 | 1h 51m | 55 | 91% | 0.0% | 36 min |
| DL 1006 | SLC 11:30 | ONT 12:19 | 1h 49m | 31 | 90% | 0.0% | 63 min |
| DL 3762flown by SkyWest | SLC 15:23 | ONT 16:17 | 1h 54m | 31 | 97% | 0.0% | 31 min |
| DL 4443flown by SkyWest | SLC 15:45 | ONT 16:41 | 1h 56m | 55 | 87% | 0.0% | 85 min |
| DL 1614 | SLC 22:59 | ONT 23:48 | 1h 49m | 349 | 89% | 0.6% | 64 min |
Nonstops by airline and airport
Arriving within 15 minutes, Aug 2025 – Jul 2026. Pick a row to see that airline’s flights on that airport pair.
| Delta | SLC | ONT | 1h 51m | 90% | 0.9% | 1,209 | Flying now |
About this data: US DOT on-time records, Aug 2025 – Jul 2026, all US airlines; regional flights count under the airline that sells them. Schedules (which flights and connections exist, and their times) are as of Jun 6 – Jul 31, 2026; seasonal flights outside that window aren’t ranked. Rebuilt monthly. JSON