Flight
UAL1521 25 Sep 2026
UAL1521, operated by United Airlines, on 25 Sep 2026: Des Moines International (KDSM) to Denver International (KDEN). Scheduled and actual times are local to each airport (hover for UTC).
Flight
FAA SWIM schedule| Route | KDSM DES MOINES INTERNATIONAL → KDEN DENVER INTERNATIONAL |
| Status | Completed, departed on time (+3 min) |
| Scheduled departure | 09:15 CDT |
| Actual departure | 09:18 CDT on time |
| Actual arrival | 10:01 MDT |
| Duration | 1h 43m |
| Aircraft | N435UA A320 |
| Max altitude | 34,000 ft |
| Distance tracked | 510 nm |
Punctuality, last 30 days
| Flights | 8 |
| On time | 2 (25%) |
| Average delay | +22 min |
| Worst delay | +36 min |
In the last 30 days UAL1521 departed on time (within 15 minutes) on 2 of 8 flights (25%), with an average departure delay of +22 min and a worst delay of +36 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.