🇺🇸 N9021F - BOEING 737-8 - SOUTHWEST AIRLINES CO SWA3537/WN3537, Orlando (MCO) to St Louis Lambert (STL) - 3.9 mi away @ 3575 ft, heading NE at 243 mph. Spotted 5x before. [07:44:44 PM CDT] #AC791B #N9021F #B38M #SWA3537 #WN3537 #Landing #Arrival #ADSB #ADSBbot