Flight
SWA4128 10 May 2026
SWA4128, operated by Southwest Airlines, on 10 May 2026: Chicago Midway International (KMDW) to Ronald Reagan Washington National (KDCA), 2 legs. Scheduled and actual times are local to each airport (hover for UTC).
Leg 1 of 2
PlaneTrack receiver network| Route | KMDW CHICAGO MIDWAY INTERNATIONAL → KDCA RONALD REAGAN WASHINGTON NATIONAL |
| Status | Completed (receiver network) |
| First seen airborne | 19:00 CDT 9 May |
| Last seen | 21:12 EDT 9 May |
| Duration | 1h 12m |
| Aircraft | N8309C |
| Max altitude | 39,000 ft |
| Distance tracked | 520 nm |
Leg 2 of 2
PlaneTrack receiver network| Route | KDCA RONALD REAGAN WASHINGTON NATIONAL → KMDW CHICAGO MIDWAY INTERNATIONAL |
| Status | Completed (receiver network) |
| First seen airborne | 06:16 EDT |
| Last seen | 18:52 CDT |
| Duration | 13h 35m |
| Aircraft | N8309C |
| Max altitude | 31,000 ft |
| Distance tracked | 520 nm |
Punctuality, last 30 days
| Flights | 7 |
| On time | 4 (57%) |
| Average delay | +88 min |
| Worst delay | +281 min |
In the last 30 days SWA4128 departed on time (within 15 minutes) on 4 of 7 flights (57%), with an average departure delay of +88 min and a worst delay of +281 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.