Flight
UAL8121 28 Sep 2026
UAL8121, operated by United Airlines, on 28 Sep 2026: George Bush Intcntl Houston (KIAH) to Portland International (KPDX), 2 legs. Scheduled and actual times are local to each airport (hover for UTC).
Leg 1 of 2
FAA SWIM schedule| Route | KIAH GEORGE BUSH INTCNTL HOUSTON → KPDX PORTLAND INTERNATIONAL |
| Status | Completed, departed on time (+11 min) |
| Scheduled departure | 19:50 CDT 27 Sep |
| Actual departure | 20:01 CDT 27 Sep on time |
| Actual arrival | 22:00 PDT 27 Sep |
| Duration | 3h 59m |
| Aircraft | N47470 B39M |
| Max altitude | 36,025 ft |
| Distance tracked | 1,584 nm |
Leg 2 of 2
FAA SWIM schedule| Route | KLAX LOS ANGELES INTERNATIONAL → KBOS GENERAL EDWARD LAWRENCE LOGAN INTERNATIONAL |
| Status | Completed, departure delayed +156 min |
| Scheduled departure | 16:20 PDT |
| Actual departure | 18:56 PDT delayed +156 min |
| Actual arrival | 03:01 EDT 29 Sep |
| Duration | 5h 05m |
Punctuality, last 30 days
| Flights | 6 |
| On time | 1 (17%) |
| Average delay | +53 min |
| Worst delay | +156 min |
In the last 30 days UAL8121 departed on time (within 15 minutes) on 1 of 6 flights (17%), with an average departure delay of +53 min and a worst delay of +156 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.