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

🇺🇸 N378FR - Airbus A320 251NSL - Frontier Airlines FFT1441/F91441, Hartsfield - Jackson Atlanta (ATL) to Chicago O'Hare (ORD) - 4.7 mi away @ 38450 ft, heading NNE at 490 mph. Spotted 16x before! [11:06:43 AM CDT] #A45210 #N378FR #A20N #FRONTIER_FLIGHT #FFT1441 #F91441 #ADSB #ADSBbot

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

🇺🇸 N378FR - Airbus A320 251NSL - Frontier Airlines FFT3241/F93241, Chicago O'Hare (ORD) to Dallas-Fort Worth (DFW) - 4.8 mi away @ 39700 ft, heading SW at 527 mph. Spotted 15x before! [06:16:22 PM CDT] #A45210 #N378FR #A20N #FRONTIER_FLIGHT #FFT3241 #F93241 #ADSB #ADSBbot

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

🇺🇸 N378FR - Airbus A320 251NSL - Frontier Airlines FFT3136/F93136, George Bush Intcntl/Houston (IAH) to Chicago O'Hare (ORD) - 4.8 mi away @ 39200 ft, heading NNE at 508 mph. Spotted 14x before! [11:44:28 AM CDT] #A45210 #N378FR #A20N #FRONTIER_FLIGHT #FFT3136 #F93136 #ADSB #ADSBbot

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

🇺🇸 N378FR - Airbus A320 251NSL - Frontier Airlines FFT1615/F91615, Orlando (MCO) to Minneapolis-St Paul/Wold-Chamberlain (MSP) - 4.5 mi away @ 37150 ft, heading NNW at 512 mph. Spotted 13x before! [07:39:51 AM CST] #A45210 #N378FR #A20N #FRONTIER_FLIGHT #FFT1615 #F91615 #ADSB #ADSBbot