Flight
SWA4020 12 May 2026
SWA4020, operated by Southwest Airlines, on 12 May 2026: Buffalo Niagara International (KBUF) to Chicago Ohare International (KORD), 3 legs. Scheduled and actual times are local to each airport (hover for UTC).
Leg 1 of 3estimated
PlaneTrack receiver network| Route | KBUF BUFFALO NIAGARA INTERNATIONAL → KORD CHICAGO OHARE INTERNATIONAL |
| Status | Completed (receiver network) |
| First seen airborne | 20:15 EDT 11 May |
| Last seen | 20:34 CDT 11 May |
| Duration | 1h 18m |
| Aircraft | N8852Q |
| Max altitude | 38,000 ft |
| Distance tracked | 410 nm |
Leg 2 of 3estimated
PlaneTrack receiver network| Route | KMDW CHICAGO MIDWAY INTERNATIONAL → ? |
| Status | Completed (receiver network) |
| First seen airborne | 21:51 CDT 11 May |
| Last seen | 17:24Z |
| Duration | 14h 32m |
| Aircraft | N8852Q |
| Max altitude | 33,000 ft |
Leg 3 of 3
PlaneTrack receiver network| Route | KLAS MC CARRAN INTERNATIONAL → KDEN DENVER INTERNATIONAL |
| Status | Completed (receiver network) |
| First seen airborne | 11:20 PDT |
| Last seen | 13:58 MDT |
| Duration | 1h 37m |
| Aircraft | N912WN |
| Max altitude | 41,000 ft |
| Distance tracked | 545 nm |
Punctuality, last 30 days
| Flights | 4 |
| On time | 2 (50%) |
| Average delay | +21 min |
| Worst delay | +40 min |
In the last 30 days SWA4020 departed on time (within 15 minutes) on 2 of 4 flights (50%), with an average departure delay of +21 min and a worst delay of +40 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.