Flight
SWA4721 29 Dec 2025
SWA4721, operated by Southwest Airlines, on 29 Dec 2025: Denver International (KDEN) to Ontario International (KONT). Scheduled and actual times are local to each airport (hover for UTC).
Flight
PlaneTrack receiver network| Route | KDEN DENVER INTERNATIONAL → KONT ONTARIO INTERNATIONAL |
| Status | Completed (receiver network) |
| First seen airborne | 11:55 MST |
| Last seen | 13:50 PST |
| Duration | 2h 55m |
| Aircraft | N8581Z |
| Max altitude | 30,000 ft |
| Distance tracked | 710 nm |
Punctuality, last 30 days
| Flights | 6 |
| On time | 4 (67%) |
| Average delay | +13 min |
| Worst delay | +18 min |
In the last 30 days SWA4721 departed on time (within 15 minutes) on 4 of 6 flights (67%), with an average departure delay of +13 min and a worst delay of +18 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.