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

🇨🇦 C-FYSD - THE BOEING COMPANY 737-8K5 - Sunwing Airlines SWG5122/WG5122, Licenciado Gustavo Diaz Ordaz (PVR) to Toronto Pearson (YYZ) - 4.3 mi away @ 37175 ft, heading NE at 554 mph. Spotted once before! [12:35:07 AM CST] #C04138 #C_FYSD #B738 #SUNWING #SWG5122 #WG5122 #ADSB #ADSBbot

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

🇨🇦 C-FYSD - Sunwing Airlines SWG522/WG522, Licenciado Gustavo Diaz Ordaz (PVR) to Toronto Pearson (YYZ) - 4.9 mi away @ 39775 ft, heading NE at 576 mph. Spotted for first time! [12:29:11 AM CST] #C04138 #C_FYSD #B738 #SUNWING #SWG522 #WG522 #ADSB #ADSBbot