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

🇺🇸 N8323C - Boeing 737NG 8H4/W - Southwest Airlines SWA4631/WN4631, William P Hobby (HOU) to Indianapolis (IND) - 4.9 mi away @ 38375 ft, heading NE at 618 mph. Spotted 90x before! [07:57:22 PM CDT] #AB628C #N8323C #B738 #SOUTHWEST #SWA4631 #WN4631 #ADSB #ADSBbot

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

🇺🇸 N8919K - Boeing 737MAX 8 - Southwest Airlines SWA4631/WN4631, William P Hobby (HOU) to Indianapolis (IND) - 4.6 mi away @ 37850 ft, heading NNE at 525 mph. Spotted 25x before! [09:15:20 PM CDT] #AC4CA8 #N8919K #B38M #SOUTHWEST #SWA4631 #WN4631 #ADSB #ADSBbot