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

🇺🇸 N246LV - Boeing 737NG 7H4/W - Southwest Airlines SWA3121/WN3121 (MDW-DAL-PHX) - 4.7 mi away @ 39800 ft, heading SW at 521 mph. Spotted 68x before! [04:01:22 PM CDT] #A24757 #N246LV #B737 #SOUTHWEST #SWA3121 #WN3121 #ADSB #ADSBbot

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

🇺🇸 N424WN - Boeing 737NG 7H4/W - Southwest Airlines SWA3121/WN3121 (MDW-DAL-PHX) - 4.9 mi away @ 41725 ft, heading SW at 506 mph. Spotted 66x before! [04:16:10 PM CDT] #A50C7C #N424WN #B737 #SOUTHWEST #SWA3121 #WN3121 #ADSB #ADSBbot

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

🇺🇸 N287WN - Boeing 737NG 7H4/W - Southwest Airlines SWA3121/WN3121 (MDW-DAL-PHX) - 11.5 mi away @ 39675 ft, heading SW at 477 mph. Spotted 74x before! [04:57:43 PM CDT] #A2E9FD #N287WN #B737 #SOUTHWEST #SWA3121 #WN3121 #ADSB #ADSBbot

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

🇺🇸 N276WN - Boeing 737NG 7H4/W - Southwest Airlines SWA3121/WN3121 (MDW-DAL-PHX) - 4.9 mi away @ 41975 ft, heading SW at 515 mph. Spotted 82x before! [04:05:20 PM CDT] #A2BEC7 #N276WN #B737 #SOUTHWEST #SWA3121 #WN3121 #ADSB #ADSBbot