Flight
SWA4021 21 Jul 2026
SWA4021, operated by Southwest Airlines, on 21 Jul 2026: Denver International (KDEN) to La Guardia (KLGA), 2 legs. Scheduled and actual times are local to each airport (hover for UTC).
Leg 1 of 2estimated
PlaneTrack receiver network| Route | KDEN DENVER INTERNATIONAL → KLGA LA GUARDIA |
| Status | Completed (receiver network) |
| First seen airborne | 18:00 MDT 20 Jul |
| Last seen | 20:30 EDT 20 Jul |
| Duration | 0h 29m |
| Aircraft | N927WN |
| Max altitude | 13,750 ft |
| Distance tracked | 653 nm |
Leg 2 of 2
PlaneTrack receiver network| Route | KDEN DENVER INTERNATIONAL → KHOU WILLIAM P HOBBY |
| Status | Completed (receiver network) |
| First seen airborne | 19:35 MDT 20 Jul |
| Last seen | 09:36 CDT |
| Duration | 13h 00m |
| Aircraft | N927WN |
| Max altitude | 39,000 ft |
| Distance tracked | 767 nm |
Punctuality, last 30 days
| Flights | 4 |
| On time | 2 (50%) |
| Average delay | +16 min |
| Worst delay | +24 min |
In the last 30 days SWA4021 departed on time (within 15 minutes) on 2 of 4 flights (50%), with an average departure delay of +16 min and a worst delay of +24 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.