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

🇺🇸 N639FR - Airbus A321 271NXSL - Frontier Airlines FFT3238/F93238, Harry Reid (LAS) to John F Kennedy (JFK) - 4.8 mi away @ 38725 ft, heading E at 534 mph. Spotted 13x before! [02:08:58 AM CDT] #A85FB8 #N639FR #A21N #FRONTIER_FLIGHT #FFT3238 #F93238 #ADSB #ADSBbot