No clear winner: airlines and hours on this route all land within a few points of 3 in 4 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 | DTW 08:35 | SJU 13:04 | 76% |
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 → | DTW 05:17 → ATL 07:10DL 2375 | 56m Atlanta | ATL 08:06 → SJU 11:44DL 1757 | 6h 27m | 89% | 78% |
| UnitedDetails → | DTW 06:00 → IAD 07:34UA 4058 · flown by Mesa | 1h 00m Dulles | IAD 08:34 → SJU 12:34UA 2021 | 6h 34m | 88% | 74% |
| SouthwestDetails → | DTW 05:50 → BWI 07:20WN 4534 | 50m Baltimore | BWI 08:10 → SJU 12:25WN 4443 | 6h 35m | 81% | 60% |
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