Flight
UAL644 23 Sep 2026
UAL644, operated by United Airlines, on 23 Sep 2026: Dallas Fort Worth International (KDFW) to Denver International (KDEN), 2 legs. Scheduled and actual times are local to each airport (hover for UTC).
Leg 1 of 2
PlaneTrack receiver network| Route | KDFW DALLAS FORT WORTH INTERNATIONAL → KDEN DENVER INTERNATIONAL |
| Status | Completed (receiver network) |
| First seen airborne | 08:58 CDT |
| Last seen | 09:50 MDT |
| Duration | 1h 51m |
| Aircraft | N37252 |
| Max altitude | 38,000 ft |
| Distance tracked | 556 nm |
Leg 2 of 2
PlaneTrack receiver network| Route | KDEN DENVER INTERNATIONAL → KPDX PORTLAND INTERNATIONAL |
| Status | Completed (receiver network) |
| First seen airborne | 11:52 MDT |
| Last seen | 13:10 PDT |
| Duration | 2h 17m |
| Aircraft | N14515 |
| Max altitude | 34,050 ft |
| Distance tracked | 860 nm |
Punctuality, last 30 days
| Flights | 16 |
| On time | 4 (25%) |
| Average delay | +24 min |
| Worst delay | +65 min |
In the last 30 days UAL644 departed on time (within 15 minutes) on 4 of 16 flights (25%), with an average departure delay of +24 min and a worst delay of +65 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.