Flight
UAL1218 21 Feb 2026
UAL1218, operated by United Airlines, on 21 Feb 2026: Seattle Tacoma International (KSEA) to Denver International (KDEN). Scheduled and actual times are local to each airport (hover for UTC).
Flight
PlaneTrack receiver network| Route | KSEA SEATTLE TACOMA INTERNATIONAL → KDEN DENVER INTERNATIONAL |
| Status | Completed (receiver network) |
| First seen airborne | 19:29 PST 20 Feb |
| Last seen | 22:48 MST 20 Feb |
| Duration | 2h 18m |
| Aircraft | N17421 |
| Max altitude | 33,000 ft |
| Distance tracked | 888 nm |
Punctuality, last 30 days
| Flights | 6 |
| On time | 2 (33%) |
| Average delay | +13 min |
| Worst delay | +19 min |
In the last 30 days UAL1218 departed on time (within 15 minutes) on 2 of 6 flights (33%), 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.