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

🇺🇸 N8605E - Boeing 737NG 8H4/W - Southwest Airlines SWA1721/WN1721, Denver (DEN) to Cincinnati/Northern Kentucky (CVG) - 4.5 mi away @ 36725 ft, heading ESE at 577 mph. Spotted 76x before! [06:27:51 PM CDT] #ABD1E3 #N8605E #B738 #SOUTHWEST #SWA1721 #WN1721 #ADSB #ADSBbot

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

🇺🇸 N8834L - Boeing 737MAX 8 - Southwest Airlines SWA1721/WN1721, Denver (DEN) to Cincinnati/Northern Kentucky (CVG) - 5.0 mi away @ 39100 ft, heading ESE at 593 mph. Spotted 61x before! [06:58:21 PM CDT] #AC2BE9 #N8834L #B38M #SOUTHWEST #SWA1721 #WN1721 #ADSB #ADSBbot

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

🇺🇸 N440LV - Boeing 737NG 7H4/W - Southwest Airlines SWA1721/WN1721, Denver (DEN) to Cincinnati/Northern Kentucky (CVG) - 4.8 mi away @ 40900 ft, heading ESE at 564 mph. Spotted 62x before! [04:51:43 PM CDT] #A54BAB #N440LV #B737 #SOUTHWEST #SWA1721 #WN1721 #ADSB #ADSBbot