Flight
UAL1218 18 Dec 2025
UAL1218, operated by United Airlines, on 18 Dec 2025: Seattle Tacoma International (KSEA) to Denver International (KDEN), 2 legs. Scheduled and actual times are local to each airport (hover for UTC).
Leg 1 of 2estimated
PlaneTrack receiver network| Route | KSEA SEATTLE TACOMA INTERNATIONAL → KDEN DENVER INTERNATIONAL |
| Status | Completed (receiver network) |
| First seen airborne | 16:00 PST 17 Dec |
| Last seen | 17:56 MST 17 Dec |
| Duration | 0h 55m |
| Aircraft | A5CF8B |
| Max altitude | 36,000 ft |
| Distance tracked | 888 nm |
Leg 2 of 2estimated
PlaneTrack receiver network| Route | Route not recorded |
| Status | Completed (receiver network) |
| First seen airborne | 14:19Z |
| Last seen | 14:52Z |
| Duration | 0h 33m |
| Aircraft | N440UA |
| Max altitude | 23,025 ft |
Punctuality, last 30 days
| Flights | 5 |
| On time | 2 (40%) |
| Average delay | +13 min |
| Worst delay | +19 min |
In the last 30 days UAL1218 departed on time (within 15 minutes) on 2 of 5 flights (40%), with an average departure delay of +13 min and a worst delay of +19 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.