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

🇺🇸 N17752 - Boeing 737NG 71Q/W - United Airlines UAL2609/UA2609 (RDU-ORD-SNA) - 4.7 mi away @ 39975 ft, heading WSW at 535 mph. Spotted 23x before! [10:10:26 AM CDT] #A13650 #N17752 #B737 #UNITED #UAL2609 #UA2609 #ADSB #ADSBbot

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

🇺🇸 N21723 - Boeing 737NG 724/W - United Airlines UAL2609/UA2609, Chicago O'Hare (ORD) to John Wayne/Orange County (SNA) - 4.9 mi away @ 40325 ft, heading WSW at 521 mph. Spotted 18x before! [10:08:02 AM CDT] #A1D63D #N21723 #B737 #UNITED #UAL2609 #UA2609 #ADSB #ADSBbot