Flight
SWA4139 20 Dec 2025
SWA4139, operated by Southwest Airlines, on 20 Dec 2025: Baltimore Washington International (KBWI) to Chicago Midway International (KMDW). Scheduled and actual times are local to each airport (hover for UTC).
Flight
PlaneTrack receiver network| Route | KBWI BALTIMORE WASHINGTON INTERNATIONAL → KMDW CHICAGO MIDWAY INTERNATIONAL |
| Status | Completed (receiver network) |
| First seen airborne | 14:21 EST |
| Last seen | 15:02 CST |
| Duration | 1h 40m |
| Aircraft | N8744B |
| Max altitude | 30,000 ft |
| Distance tracked | 529 nm |
Punctuality, last 30 days
| Flights | 5 |
| On time | 3 (60%) |
| Average delay | +8 min |
| Worst delay | +18 min |
In the last 30 days SWA4139 departed on time (within 15 minutes) on 3 of 5 flights (60%), with an average departure delay of +8 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.