Flight
UAL1257 29 Sep 2026
UAL1257, operated by United Airlines, on 29 Sep 2026: Miami International (KMIA) to San Francisco International (KSFO), 2 legs. Scheduled and actual times are local to each airport (hover for UTC).
Leg 1 of 2
FAA SWIM schedule| Route | KMIA MIAMI INTERNATIONAL → KSFO SAN FRANCISCO INTERNATIONAL |
| Status | Completed, departed on time (+14 min) |
| Scheduled departure | 08:00 EDT |
| Actual departure | 08:14 EDT on time |
| Actual arrival | 10:44 PDT |
| Duration | 5h 30m |
| Aircraft | N57451 B39M |
| Max altitude | 93,800 ft |
| Distance tracked | 2,242 nm |
Leg 2 of 2
FAA SWIM schedule| Route | KSFO SAN FRANCISCO INTERNATIONAL → KSAN SAN DIEGO INTERNATIONAL LINDBERGH FLD |
| Status | Completed, departure delayed +15 min |
| Scheduled departure | 12:00 PDT |
| Actual departure | 12:15 PDT delayed +15 min |
| Actual arrival | 13:23 PDT |
| Duration | 1h 08m |
| Aircraft | N37351 B38M |
| Max altitude | 31,000 ft |
| Distance tracked | 388 nm |
Punctuality, last 30 days
| Flights | 13 |
| On time | 5 (38%) |
| Average delay | +28 min |
| Worst delay | +95 min |
In the last 30 days UAL1257 departed on time (within 15 minutes) on 5 of 13 flights (38%), with an average departure delay of +28 min and a worst delay of +95 min.
Schedule, departure and arrival times from the FAA SWIM feed; aircraft, altitude and distance from the PlaneTrack receiver network. On time means a departure within 15 minutes of schedule.