No clear winner: airlines and hours on this route all land within a few points of 84% on time.
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.
Airlines on this route
Arriving within 15 minutes. Regional flights count under the airline that sells them. Pick an airline to see its flights.
Dimmed: fewer than 150 flights in the year, too few to rank.
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 1913 | SJU 14:14 | DTW 18:53 | 86% |
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.
Alternatives with one stop
All connections →| DeltaDetails → | SJU 06:00 → ATL 09:50DL 1879 | 1h 10m Atlanta | ATL 11:00 → DTW 12:55DL 1240 | 6h 56m | 98% | 81% |
| DeltaDetails → | SJU 12:54 → ATL 16:47DL 1757 | 1h 24m Atlanta | ATL 18:11 → DTW 20:14DL 1478 | 7h 19m | 97% | 73% |
| UnitedDetails → | SJU 07:20 → IAD 11:21UA 2022 | 1h 34m Dulles | IAD 12:55 → DTW 14:34UA 3495 · flown by Republic | 7h 14m | 99% | 71% |
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