Showing Frontier only (incl. its regional partners)All airlines ×
41 nonstop flights · Aug 2025 – Jul 2026 · US DOT on-time records, all US airlines
No clear winner: Frontier’s ORD → SJU flights land within a few points of 63% on time whatever the hour.
Best time to leave
12–1 am
63% arrive on time from ORD
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 1 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.
| F9 3346 | ORD 00:44 | SJU 06:44 | 5h 00m | 41 | 63% | 7.3% | 235 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.
| Frontier | ORD | SJU | 5h 00m | 63% | 7.3% | 41 | 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