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

🇺🇸 N727TW - Boeing 757 231/W - Delta Air Lines DAL668/DL668, San Francisco (SFO) to John F Kennedy (JFK) - 4.8 mi away @ 39600 ft, heading ENE at 587 mph. Spotted 5x before! [05:34:46 PM CDT] #A9BF4B #N727TW #B752 #DELTA #DAL668 #DL668 #ADSB #ADSBbot

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

🇺🇸 N717TW - Boeing 757 231/W - Delta Air Lines DAL668/DL668 (JFK-SFO-JFK) - 4.7 mi away @ 37900 ft, heading WSW at 533 mph. Spotted once before! [08:02:13 AM CDT] #A997CC #N717TW #B752 #DELTA #DAL668 #DL668 #ADSB #ADSBbot

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

🇺🇸 N707TW - Boeing 757 2Q8/W - Delta Air Lines DAL668/DL668 (JFK-SFO-JFK) - 5.0 mi away @ 40350 ft, heading WSW at 527 mph. Spotted 3x before! [08:17:36 AM CDT] #A9704D #N707TW #B752 #DELTA #DAL668 #DL668 #ADSB #ADSBbot