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

🇺🇸 N379FR - Airbus A320 251NSL - Frontier Airlines FFT689/F9689, Ronald Reagan Washington Ntl (DCA) to Denver (DEN) - 4.4 mi away @ 38100 ft, heading W at 527 mph. Spotted 19x before! [07:04:14 PM CDT] #A455C7 #N379FR #A20N #FRONTIER_FLIGHT #FFT689 #F9689 #ADSB #ADSBbot

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

🇺🇸 N330FR - Airbus A320 251NSL - Frontier Airlines FFT689/F9689, Ronald Reagan Washington Ntl (DCA) to Denver (DEN) - 4.5 mi away @ 37625 ft, heading W at 522 mph. Spotted 32x before! [09:52:07 PM CDT] #A3965C #N330FR #A20N #FRONTIER_FLIGHT #FFT689 #F9689 #ADSB #ADSBbot

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

🇺🇸 N318FR - Airbus A320 251NSL - Frontier Airlines FFT689/F9689, Ronald Reagan Washington Ntl (DCA) to Denver (DEN) - 4.6 mi away @ 36550 ft, heading W at 451 mph. Spotted 25x before! [07:02:03 PM CDT] #A36516 #N318FR #A20N #FRONTIER_FLIGHT #FFT689 #F9689 #ADSB #ADSBbot