Flight
UAL599 21 Sep 2026
UAL599, operated by United Airlines, on 21 Sep 2026: San Francisco International (KSFO) to Washington Dulles International (KIAD), 2 legs. Scheduled and actual times are local to each airport (hover for UTC).
Leg 1 of 2
PlaneTrack receiver network| Route | KSFO SAN FRANCISCO INTERNATIONAL → KIAD WASHINGTON DULLES INTERNATIONAL |
| Status | Completed (receiver network) |
| First seen airborne | 08:05 PDT |
| Last seen | 16:00 EDT |
| Duration | 4h 55m |
| Aircraft | N15969 |
| Max altitude | 40,000 ft |
| Distance tracked | 2,096 nm |
Leg 2 of 2estimated
PlaneTrack receiver network| Route | KIAD WASHINGTON DULLES INTERNATIONAL → KSTL LAMBERT ST LOUIS INTERNATIONAL |
| Status | Completed (receiver network) |
| First seen airborne | 18:24 EDT |
| Last seen | 18:58 CDT |
| Duration | 1h 34m |
| Aircraft | A6EDA1 |
| Max altitude | 36,000 ft |
| Distance tracked | 603 nm |
Punctuality, last 30 days
| Flights | 14 |
| On time | 4 (29%) |
| Average delay | +27 min |
| Worst delay | +69 min |
In the last 30 days UAL599 departed on time (within 15 minutes) on 4 of 14 flights (29%), with an average departure delay of +27 min and a worst delay of +69 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.