Showing Frontier only (incl. its regional partners)All airlines ×
196 nonstop flights · Aug 2025 – Jul 2026 · US DOT on-time records, all US airlines
Take the nonstop: Frontier ONT → IAH (3h 25m) reaches Houston on time 3 times in 4; the most reliable connection, Frontier via Las Vegas (6h 00m), 63%.
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 Frontier flight on this route ran 150+ times in the year.
All 2 Frontier 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.
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.
| Frontier | ONT | IAH | 3h 25m | 76% | 2.0% | 196 | 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