#WN3909
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🇺🇸 N8531Q - Boeing 737NG 800/W - Southwest Airlines SWA3909/WN3909, St Louis Lambert (STL) to Denver (DEN) - 3.4 mi away @ 12275 ft, heading WNW at 407 mph. Spotted 117x before. [05:50:49 AM CDT] #ABB507 #N8531Q #B738 #SOUTHWEST #SWA3909 #WN3909 #TakingOff #Departure #ADSB #ADSBbot
Map of the St. Louis area showing the position and track of the aircraft described in the post.
July 30, 2026 at 10:50 AM
abovestlouis.com
🇺🇸 N8744B - Boeing 737MAX 8 - Southwest Airlines SWA3909/WN3909, St Louis Lambert (STL) to Denver (DEN) - 3.6 mi away @ 11375 ft, heading WNW at 353 mph. Spotted 73x before. [06:10:06 AM CDT] #AC0818 #N8744B #B38M #SOUTHWEST #SWA3909 #WN3909 #Landing #Departure #ADSB #ADSBbot
Map of the St. Louis area showing the position and track of the aircraft described in the post.
July 25, 2026 at 11:10 AM
abovestlouis.com
🇺🇸 N8676A - Boeing 737NG 8H4/W - Southwest Airlines SWA3909/WN3909, St Louis Lambert (STL) to Denver (DEN) - 3.3 mi away @ 11700 ft, heading NW at 407 mph. Spotted 120x before. [05:44:49 AM CDT] #ABEC03 #N8676A #B738 #SOUTHWEST #SWA3909 #WN3909 #Landing #Departure #ADSB #ADSBbot
Map of the St. Louis area showing the position and track of the aircraft described in the post.
July 24, 2026 at 10:44 AM
abovestlouis.com
🇺🇸 N8329B - Boeing 737NG 8H4/W - Southwest Airlines SWA3909/WN3909, St Louis Lambert (STL) to Denver (DEN) - 3.4 mi away @ 12675 ft, heading WNW at 423 mph. Spotted 95x before. [05:48:38 AM CDT] #AB635D #N8329B #B738 #SOUTHWEST #SWA3909 #WN3909 #TakingOff #Departure #ADSB #ADSBbot
Map of the St. Louis area showing the position and track of the aircraft described in the post.
July 20, 2026 at 10:48 AM
abovestlouis.com
🇺🇸 N8984L - SOUTHWEST AIRLINES CO SWA3909/WN3909, St Louis Lambert (STL) to Denver (DEN) - 3.3 mi away @ 12775 ft, heading NW at 410 mph. Spotted 24x before. [06:17:27 AM CDT] #AC65FB #N8984L #B738 #SWA3909 #WN3909 #Landing #Departure #ADSB #ADSBbot
Map of the St. Louis area showing the position and track of the aircraft described in the post.
July 14, 2026 at 11:17 AM
abovestlouis.com
🇺🇸 N8955Q - BOEING 737 MAX 8 - Southwest Airlines SWA3909/WN3909, St Louis Lambert (STL) to Denver (DEN) - 3.3 mi away @ 11950 ft, heading NW at 376 mph. Spotted 26x before. [06:17:27 AM CDT] #AC5AFD #N8955Q #B38M #SOUTHWEST #SWA3909 #WN3909 #TakingOff #Departure #ADSB #ADSBbot
Map of the St. Louis area showing the position and track of the aircraft described in the post.
July 11, 2026 at 11:17 AM
abovestlouis.com
🇺🇸 N8628A - Boeing 737NG 8H4/W - Southwest Airlines SWA3909/WN3909, St Louis Lambert (STL) to Denver (DEN) - 3.3 mi away @ 11825 ft, heading WNW at 394 mph. Spotted 113x before. [06:16:03 AM CDT] #ABD9B6 #N8628A #B738 #SOUTHWEST #SWA3909 #WN3909 #Landing #Departure #ADSB #ADSBbot
Map of the St. Louis area showing the position and track of the aircraft described in the post.
July 1, 2026 at 11:16 AM
abovestlouis.com
🇺🇸 N8602F - Boeing 737NG 8H4/W - Southwest Airlines SWA3909/WN3909 - 3.5 mi away @ 12625 ft, heading WNW at 423 mph. Spotted 106x before. [05:52:07 AM CDT] #ABD17B #N8602F #B738 #SOUTHWEST #SWA3909 #WN3909 #Landing #ADSB #ADSBbot
Map of the St. Louis area showing the position and track of the aircraft described in the post.
June 29, 2026 at 10:52 AM
abovestlouis.com
🇺🇸 N8844Q - Boeing 737MAX 8 - Southwest Airlines SWA3909/WN3909, St Louis Lambert (STL) to Denver (DEN) - 3.2 mi away @ 13900 ft, heading WNW at 381 mph. Spotted 95x before. [06:20:52 AM CDT] #AC2FA4 #N8844Q #B38M #SOUTHWEST #SWA3909 #WN3909 #Landing #Departure #ADSB #ADSBbot
Map of the St. Louis area showing the position and track of the aircraft described in the post.
June 17, 2026 at 11:21 AM
abovestlouis.com
🇺🇸 N8824Q - Boeing 737MAX 8 - Southwest Airlines SWA3909/WN3909, St Louis Lambert (STL) to Denver (DEN) - 3.6 mi away @ 12000 ft, heading NNW at 354 mph. Spotted 92x before. [06:03:21 AM CDT] #AC2836 #N8824Q #B38M #SOUTHWEST #SWA3909 #WN3909 #Landing #Departure #ADSB #ADSBbot
Map of the St. Louis area showing the position and track of the aircraft described in the post.
June 13, 2026 at 11:03 AM
abovestlouis.com
🇺🇸 N8535S - Boeing 737NG 800/W - Southwest Airlines SWA3909/WN3909, St Louis Lambert (STL) to Denver (DEN) - 3.3 mi away @ 17050 ft, heading WNW at 429 mph. Spotted 90x before. [05:51:10 AM CDT] #ABB595 #N8535S #B738 #SOUTHWEST #SWA3909 #WN3909 #Departure #ADSB #ADSBbot
Map of the St. Louis area showing the position and track of the aircraft described in the post.
June 11, 2026 at 10:51 AM
abovestlouis.com
🇺🇸 N8713M - Boeing 737MAX 8 - Southwest Airlines SWA3909/WN3909, St Louis Lambert (STL) to Denver (DEN) - 3.6 mi away @ 15275 ft, heading WNW at 363 mph. Spotted 55x before. [05:55:22 AM CDT] #ABFCDA #N8713M #B38M #SOUTHWEST #SWA3909 #WN3909 #Departure #ADSB #ADSBbot
Map of the St. Louis area showing the position and track of the aircraft described in the post.
June 8, 2026 at 10:55 AM
abovestlouis.com
🇺🇸 N7704B - Boeing 737NG 7BD/W - Southwest Airlines SWA3909/WN3909, Will Rogers World (OKC) to Ronald Reagan Washington Ntl (DCA) - 5.0 mi away @ 42600 ft, heading ENE at 501 mph. Spotted 75x before! [12:10:52 PM CDT] #AA6BED #N7704B #B737 #SOUTHWEST #SWA3909 #WN3909 #ADSB #ADSBbot
Map of the St. Louis area showing the position and track of the aircraft described in the post.
September 16, 2025 at 5:11 PM