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

🇺🇸 N436AN - Airbus A321 253NXSL - American Airlines AAL1621/AA1621, Philadelphia (PHL) to San Diego (SAN) - 4.5 mi away @ 35650 ft, heading WSW at 554 mph. Spotted 8x before! [10:07:06 AM CDT] #A53975 #N436AN #A21N #AMERICAN #AAL1621 #AA1621 #ADSB #ADSBbot

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

🇺🇸 N424AN - Airbus A321 253NXSL - American Airlines AAL1621/AA1621, Philadelphia (PHL) to San Diego (SAN) - 4.2 mi away @ 33900 ft, heading W at 564 mph. Spotted 10x before! [09:49:49 AM CDT] #A50A88 #N424AN #A21N #AMERICAN #AAL1621 #AA1621 #ADSB #ADSBbot

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

🇺🇸 N443AA - Airbus A321 253NXSL - American Airlines AAL1621/AA1621, Philadelphia (PHL) to San Diego (SAN) - 6.0 mi away @ 33800 ft, heading W at 552 mph. Spotted 9x before! [09:25:12 AM CDT] #A555C3 #N443AA #A21N #AMERICAN #AAL1621 #AA1621 #ADSB #ADSBbot

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

🇺🇸 N470AN - Airbus A321 253NYSL - American Airlines AAL1621/AA1621, Philadelphia (PHL) to San Diego (SAN) - 4.1 mi away @ 32675 ft, heading W at 439 mph. Spotted once before! [10:02:41 AM CDT] #A5C127 #N470AN #A21N #AMERICAN #AAL1621 #AA1621 #ADSB #ADSBbot