Flight
UAL1581 4 May 2026
UAL1581, operated by United Airlines, on 4 May 2026: Montreal International Dorval (CYUL) to Chicago Ohare International (KORD). Scheduled and actual times are local to each airport (hover for UTC).
Flight
PlaneTrack receiver network| Route | CYUL MONTREAL INTERNATIONAL DORVAL → KORD CHICAGO OHARE INTERNATIONAL |
| Status | Completed (receiver network) |
| First seen airborne | 10:13 EDT |
| Last seen | 11:08 CDT |
| Duration | 1h 54m |
| Aircraft | N27733 |
| Max altitude | 34,000 ft |
| Distance tracked | 648 nm |
Punctuality, last 30 days
| Flights | 7 |
| On time | 0 (0%) |
| Average delay | +39 min |
| Worst delay | +69 min |
In the last 30 days UAL1581 departed on time (within 15 minutes) on 0 of 7 flights (0%), with an average departure delay of +39 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.