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

🇺🇸 N210UA - Boeing 777 222 - United Airlines UAL1423/UA1423, Cancun (CUN) to Chicago O'Hare (ORD) - 4.8 mi away @ 39150 ft, heading N at 513 mph. Spotted 9x before. [05:01:59 PM CST] #A1BB45 #N210UA #B772 #UNITED #UAL1423 #UA1423 #ADSB #ADSBbot

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

🇺🇸 N210UA - Boeing 777 222 - United Airlines UAL1423/UA1423, Cancun (CUN) to Chicago O'Hare (ORD) - 4.1 mi away @ 35975 ft, heading NNE at 639 mph. Spotted 8x before. [04:54:02 PM CST] #A1BB45 #N210UA #B772 #UNITED #UAL1423 #UA1423 #ADSB #ADSBbot

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

🇺🇸 N210UA - Boeing 777 222 - United Airlines UAL1423/UA1423, Cancun (CUN) to Chicago O'Hare (ORD) - 4.4 mi away @ 36950 ft, heading NNE at 560 mph. Spotted 7x before. [05:37:01 PM CST] #A1BB45 #N210UA #B772 #UNITED #UAL1423 #UA1423 #ADSB #ADSBbot

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

🇺🇸 N210UA - Boeing 777 222 - United Airlines UAL1423/UA1423, Cancun (CUN) to Chicago O'Hare (ORD) - 4.9 mi away @ 37825 ft, heading NNE at 497 mph. Spotted 6x before! [05:13:15 PM CST] #A1BB45 #N210UA #B772 #UNITED #UAL1423 #UA1423 #ADSB #ADSBbot

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

🇺🇸 N210UA - Boeing 777 222 - United Airlines UAL1423/UA1423, Cancun (CUN) to Chicago O'Hare (ORD) - 4.5 mi away @ 37425 ft, heading NNE at 544 mph. Spotted 5x before! [05:02:52 PM CST] #A1BB45 #N210UA #B772 #UNITED #UAL1423 #UA1423 #ADSB #ADSBbot