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

🇺🇸 N408AN - Airbus A321 253NXSL - American Airlines AAL1850/AA1850, General Edward Lawrence Logan (BOS) to Phoenix Sky Harbor (PHX) - 4.1 mi away @ 33650 ft, heading W at 461 mph. Spotted 8x before! [06:36:38 PM CDT] #A4CA66 #N408AN #A21N #AMERICAN #AAL1850 #AA1850 #ADSB #ADSBbot