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

🇺🇸 N609NK - Airbus A320 232 - Spirit Airlines NKS1684/NK1684, Chicago O'Hare (ORD) to George Bush Intcntl/Houston (IAH) - 4.3 mi away @ 36850 ft, heading SSW at 466 mph. Spotted 6x before! [11:20:59 AM CST] #A7E9E4 #N609NK #A320 #SPIRIT_WINGS #NKS1684 #NK1684 #ADSB #ADSBbot