Showing Frontier only (incl. its regional partners)All airlines ×
114 nonstop flights · Aug 2025 – Jul 2026 · US DOT on-time records, all US airlines
No clear winner: Frontier’s RDU → ORD flights land within a few points of 58% on time whatever the hour.
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.
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 | RDU | ORD | 2h 25m | 58% | 5.3% | 114 | Not flying now |
Alternatives with one stop
All connections →| FrontierDetails → | RDU 08:00 → DFW 10:05F9 2343 | 3h 14m Dallas-Fort Worth | DFW 13:19 → ORD 15:59F9 1342 | 9h 02m | 98% | 72% |
| FrontierDetails → | RDU 12:26 → DEN 14:29F9 2225 | 2h 36m Denver | DEN 17:05 → ORD 20:43F9 3174 | 9h 17m | 99% | 65% |
| FrontierDetails → | RDU 13:30 → PHL 15:01F9 2060 | 2h 05m Philadelphia | PHL 17:06 → ORD 18:47F9 2111 | 6h 17m | 95% | 53% |
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