Flight
UAL2129 7 Mar 2026
UAL2129, operated by United Airlines, on 7 Mar 2026, 2 legs. Scheduled and actual times are local to each airport (hover for UTC).
Leg 1 of 2partial
PlaneTrack receiver network| Route | KSAN SAN DIEGO INTERNATIONAL LINDBERGH FLD → ? |
| Status | Partial record (receiver network) |
| First seen airborne | 22:26 PST 6 Mar |
| Aircraft | N17421 |
Leg 2 of 2estimated
PlaneTrack receiver network| Route | KSAN SAN DIEGO INTERNATIONAL LINDBERGH FLD → KIAD WASHINGTON DULLES INTERNATIONAL |
| Status | Completed (receiver network) |
| First seen airborne | 10:10 PST |
| Last seen | 18:56 EST |
| Duration | 5h 46m |
| Aircraft | N17421 |
| Max altitude | 39,025 ft |
| Distance tracked | 1,953 nm |
Punctuality, last 30 days
| Flights | 6 |
| On time | 5 (83%) |
| Average delay | +15 min |
| Worst delay | +26 min |
In the last 30 days UAL2129 departed on time (within 15 minutes) on 5 of 6 flights (83%), with an average departure delay of +15 min and a worst delay of +26 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.