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

🇺🇸 N629SW - Boeing 737 3H4/W - iAero Airways BBQ9721 - 4.0 mi away @ 34800 ft, heading E at 643 mph. Spotted for first time! [04:37:39 PM CST] #A83951 #N629SW #B733 #SWIFTFLIGHT #BBQ9721 #ADSB #ADSBbot