Showing Delta only (incl. its regional partners)All airlines ×
1 nonstop flights · Aug 2025 – Jul 2026 · US DOT on-time records, all US airlines
No nonstop, and no clear pattern: the best connection reaches Austin on time 9 times in 10.
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.
No Delta flight on this route ran 150+ times in the year.
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 | ONT | AUS | – | 0%few flights | 0.0% | 1 | Not flying now |
Alternatives with one stop
All connections →| DeltaDetails → | ONT 22:00 → ATL 05:18DL 2892 | 2h 52m Atlanta | ATL 08:10 → AUS 09:30 +1DL 2976 | 9h 30m | 100% | 89% |
| DeltaDetails → | ONT 13:00 → SLC 15:47DL 3172 | 1h 58m Salt Lake City | SLC 17:45 → AUS 21:32DL 2728 | 6h 32m | 98% | 80% |
| DeltaDetails → | ONT 06:00 → SLC 08:50DL 2708 | 1h 55m Salt Lake City | SLC 10:45 → AUS 14:50DL 3955 · flown by SkyWest | 6h 50m | 98% | 79% |
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