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

🇺🇸 N87380 - Embraer EMB-175 LL - United Express SKW5736/OO5736, San Francisco (SFO) to St Louis Lambert (STL) - 3.2 mi away @ 9850 ft, heading E at 379 mph. Spotted 4x before. [03:22:56 PM CST] #AC0504 #N87380 #E75L #AIR_SHUTTLE #SKW5736 #OO5736 #autopilot #Landing #Arrival #ADSB #ADSBbot

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

🇺🇸 N87380 - Embraer EMB-175 LL - United Express SKW5673/OO5673, Mc Ghee Tyson (TYS) to Denver (DEN) - 4.1 mi away @ 33875 ft, heading W at 509 mph. Spotted 3x before! [09:03:56 AM CDT] #AC0504 #N87380 #E75L #AIR_SHUTTLE #SKW5673 #OO5673 #autopilot #ADSB #ADSBbot

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

🇺🇸 N87380 - Embraer EMB-175 LL - United Express SKW5979/OO5979 - 3.7 mi away @ 13625 ft, heading WNW at 364 mph. Spotted 2x before! [05:46:22 AM CDT] #AC0504 #N87380 #E75L #AIR_SHUTTLE #SKW5979 #OO5979 #autopilot #Landing #ADSB #ADSBbot

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

🇺🇸 N87380 - Embraer EMB-175 LL - United Express SKW4747/OO4747, Chicago O'Hare (ORD) to Northwest Arkansas Ntl (XNA) - 4.3 mi away @ 35900 ft, heading SW at 442 mph. Spotted once before! [09:46:13 AM CDT] #AC0504 #N87380 #E75L #AIR_SHUTTLE #SKW4747 #OO4747 #autopilot #ADSB #ADSBbot