Map of the St. Louis area showing the position and track of the aircraft described in the post.

🇺🇸 N646FR - Airbus A321 271NXSL - Frontier Airlines FFT3108/F93108, Harry Reid (LAS) to St Louis Lambert (STL) - 3.5 mi away @ 8425 ft, heading E at 310 mph. Spotted 3x before! [03:18:04 PM CDT] #A87C12 #N646FR #A21N #FRONTIER_FLIGHT #FFT3108 #F93108 #Landing #Arrival #ADSB #ADSBbot

Map of the St. Louis area showing the position and track of the aircraft described in the post.

🇺🇸 N646FR - Airbus A321 271NXSL - Frontier Airlines FFT1476/F91476, Dallas-Fort Worth (DFW) to Baltimore/Washington Thurgood Marshall (BWI) - 4.2 mi away @ 34725 ft, heading ENE at 658 mph. Spotted 2x before! [03:43:09 PM CST] #A87C12 #N646FR #A21N #FRONTIER_FLIGHT #FFT1476 #F91476 #ADSB #ADSBbot