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

🇺🇸 N409YX - Embraer EMB-175 LR - American Eagle RPA4504/YX4504, Louis Armstrong New Orleans (MSY) to Chicago O'Hare (ORD) - 4.4 mi away @ 36850 ft, heading NNE at 515 mph. Spotted 14x before! [07:34:03 AM CDT] #A4D04C #N409YX #E75S #BRICKYARD #RPA4504 #YX4504 #autopilot #ADSB #ADSBbot

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

🇺🇸 N127HQ - Embraer EMB-175 LR - American Eagle RPA4504/YX4504, Louis Armstrong New Orleans (MSY) to Chicago O'Hare (ORD) - 4.7 mi away @ 34600 ft, heading NNE at 559 mph. Spotted 10x before! [07:35:45 AM CDT] #A06E71 #N127HQ #E75S #BRICKYARD #RPA4504 #YX4504 #autopilot #ADSB #ADSBbot

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

🇺🇸 N408YX - Embraer EMB-175 LR - American Eagle RPA4504/YX4504, Louis Armstrong New Orleans (MSY) to Chicago O'Hare (ORD) - 4.4 mi away @ 37050 ft, heading NNE at 532 mph. Spotted 19x before! [07:43:04 AM CDT] #A4CC95 #N408YX #E75S #BRICKYARD #RPA4504 #YX4504 #autopilot #ADSB #ADSBbot

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

🇺🇸 N436YX - Embraer EMB-175 LR - American Eagle RPA4504/YX4504, Louis Armstrong New Orleans (MSY) to Chicago O'Hare (ORD) - 13.3 mi away @ 30450 ft, heading NNE at 477 mph. Spotted 16x before! [07:39:43 AM CDT] #A53BA4 #N436YX #E75L #BRICKYARD #RPA4504 #YX4504 #autopilot #ADSB #ADSBbot