Flight

SWA3521 21 Sep 2026

SWA3521, operated by Southwest Airlines, on 21 Sep 2026: Lambert St Louis International (KSTL) to Northwest Florida Beaches International Airport (KECP). Scheduled and actual times are local to each airport (hover for UTC).

← 18 Sep 2026All SWA3521 flights22 Sep 2026 →

Flight

PlaneTrack receiver network
RouteKSTL LAMBERT ST LOUIS INTERNATIONAL → KECP Northwest Florida Beaches International Airport
StatusCompleted (receiver network)
First seen airborne15:36 CDT
Last seen17:04 CDT
Duration1h 27m
AircraftN452WN
Max altitude39,050 ft
Distance tracked551 nm

Punctuality, last 30 days

Flights6
On time4 (67%)
Average delay-203 min
Worst delay+81 min

In the last 30 days SWA3521 departed on time (within 15 minutes) on 4 of 6 flights (67%), with an average departure delay of -203 min and a worst delay of +81 min.

SWA3521 flight history Full history CSV API access

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.