#WN3877
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🇺🇸 N8322X - Boeing 737NG 8H4/W - Southwest Airlines SWA3877/WN3877, St Louis Lambert (STL) to Phoenix Sky Harbor (PHX) - 4.2 mi away @ 15650 ft, heading WNW at 388 mph. Spotted 106x before. [12:11:24 PM CDT] #AB627C #N8322X #B738 #SOUTHWEST #SWA3877 #WN3877 #Departure #ADSB #ADSBbot
Map of the St. Louis area showing the position and track of the aircraft described in the post.
September 26, 2026 at 5:11 PM
abovestlouis.com
🇺🇸 N8670A - Boeing 737NG 8H4/W - Southwest Airlines SWA3877/WN3877, St Louis Lambert (STL) to Phoenix Sky Harbor (PHX) - 3.8 mi away @ 7800 ft, heading SW at 320 mph. Spotted 113x before. [12:07:29 PM CDT] #ABEB31 #N8670A #B738 #SOUTHWEST #SWA3877 #WN3877 #TakingOff #Departure #ADSB #ADSBbot
Map of the St. Louis area showing the position and track of the aircraft described in the post.
September 17, 2026 at 5:07 PM
abovestlouis.com
🇺🇸 N436WN - Boeing 737NG 7H4/W - Southwest Airlines SWA3877/WN3877, St Louis Lambert (STL) to Phoenix Sky Harbor (PHX) - 5.6 mi away @ 7700 ft, heading SW at 311 mph. Spotted 94x before. [01:00:40 PM CDT] #A53B69 #N436WN #B737 #SOUTHWEST #SWA3877 #WN3877 #TakingOff #Departure #ADSB #ADSBbot
Map of the St. Louis area showing the position and track of the aircraft described in the post.
September 15, 2026 at 6:01 PM
abovestlouis.com
🇺🇸 N570WN - Boeing 737NG 7CT/W - Southwest Airlines SWA3877/WN3877 (MDW-STL-PHX-SMF) - 3.8 mi away @ 8375 ft, heading SW at 309 mph. Spotted 83x before. [12:03:41 PM CDT] #A7506A #N570WN #B737 #SOUTHWEST #SWA3877 #WN3877 #TakingOff #ADSB #ADSBbot
Map of the St. Louis area showing the position and track of the aircraft described in the post.
September 9, 2026 at 5:03 PM
abovestlouis.com
🇺🇸 N8675A - Boeing 737NG 8H4/W - Southwest Airlines SWA3877/WN3877, St Louis Lambert (STL) to Phoenix Sky Harbor (PHX) - 3.5 mi away @ 7525 ft, heading SW at 329 mph. Spotted 112x before. [11:58:01 AM CDT] #ABEBE0 #N8675A #B738 #SOUTHWEST #SWA3877 #WN3877 #TakingOff #Departure #ADSB #ADSBbot
Map of the St. Louis area showing the position and track of the aircraft described in the post.
September 5, 2026 at 4:58 PM
abovestlouis.com
🇺🇸 N8630B - Boeing 737NG 8H4/W - Southwest Airlines SWA3877/WN3877, St Louis Lambert (STL) to Phoenix Sky Harbor (PHX) - 3.9 mi away @ 7700 ft, heading SW at 322 mph. Spotted 121x before. [11:58:25 AM CDT] #ABDC56 #N8630B #B738 #SOUTHWEST #SWA3877 #WN3877 #TakingOff #Departure #ADSB #ADSBbot
Map of the St. Louis area showing the position and track of the aircraft described in the post.
September 4, 2026 at 4:58 PM
abovestlouis.com
🇺🇸 N8303R - Boeing 737NG 8H4/W - Southwest Airlines SWA3877/WN3877, St Louis Lambert (STL) to Phoenix Sky Harbor (PHX) - 4.6 mi away @ 8550 ft, heading SSW at 306 mph. Spotted 92x before. [01:05:16 PM CDT] #AB5B2B #N8303R #B738 #SOUTHWEST #SWA3877 #WN3877 #TakingOff #Departure #ADSB #ADSBbot
Map of the St. Louis area showing the position and track of the aircraft described in the post.
September 3, 2026 at 6:05 PM
abovestlouis.com
🇺🇸 N908WN - Boeing 737NG 7H4/W - Southwest Airlines SWA3877/WN3877 (MDW-STL-PHX-SMF) - 3.4 mi away @ 6800 ft, heading SSW at 315 mph. Spotted 93x before. [12:13:17 PM CDT] #AC8EE5 #N908WN #B737 #SOUTHWEST #SWA3877 #WN3877 #TakingOff #ADSB #ADSBbot
Map of the St. Louis area showing the position and track of the aircraft described in the post.
September 2, 2026 at 5:13 PM
abovestlouis.com
🇺🇸 N282WN - Boeing 737NG 7H4/W - Southwest Airlines SWA3877/WN3877 (MDW-STL-PHX-SMF) - 3.6 mi away @ 7325 ft, heading SSW at 312 mph. Spotted 82x before. [12:09:37 PM CDT] #A2D76A #N282WN #B737 #SOUTHWEST #SWA3877 #WN3877 #TakingOff #ADSB #ADSBbot
Map of the St. Louis area showing the position and track of the aircraft described in the post.
September 1, 2026 at 5:09 PM
abovestlouis.com
🇺🇸 N8720L - Boeing 737MAX 8 - Southwest Airlines SWA3877/WN3877, St Louis Lambert (STL) to Phoenix Sky Harbor (PHX) - 3.4 mi away @ 7525 ft, heading SW at 317 mph. Spotted 70x before. [12:26:41 PM CDT] #AC0027 #N8720L #B38M #SOUTHWEST #SWA3877 #WN3877 #Landing #Departure #ADSB #ADSBbot
Map of the St. Louis area showing the position and track of the aircraft described in the post.
August 28, 2026 at 5:26 PM
abovestlouis.com
🇺🇸 N7878A - Boeing 737NG 7K9/W - Southwest Airlines SWA3877/WN3877 (MDW-STL-PHX-SMF) - 3.5 mi away @ 6825 ft, heading SSW at 340 mph. Spotted 81x before. [12:14:24 PM CDT] #AAADF8 #N7878A #B737 #SOUTHWEST #SWA3877 #WN3877 #TakingOff #ADSB #ADSBbot
Map of the St. Louis area showing the position and track of the aircraft described in the post.
August 26, 2026 at 5:14 PM
abovestlouis.com
🇺🇸 N279WN - Boeing 737NG 7H4/W - Southwest Airlines SWA3877/WN3877 (MDW-STL-PHX-SMF) - 3.3 mi away @ 9400 ft, heading SW at 313 mph. Spotted 96x before. [11:55:22 AM CDT] #A2C9EC #N279WN #B737 #SOUTHWEST #SWA3877 #WN3877 #TakingOff #ADSB #ADSBbot
Map of the St. Louis area showing the position and track of the aircraft described in the post.
August 19, 2026 at 4:55 PM
abovestlouis.com
🇺🇸 N224WN - Boeing 737NG 7H4/W - Southwest Airlines SWA3877/WN3877 (MDW-STL-PHX-SMF) - 3.3 mi away @ 7925 ft, heading SW at 326 mph. Spotted 80x before. [12:06:43 PM CDT] #A1F1DE #N224WN #B737 #SOUTHWEST #SWA3877 #WN3877 #TakingOff #ADSB #ADSBbot
Map of the St. Louis area showing the position and track of the aircraft described in the post.
August 18, 2026 at 5:06 PM
abovestlouis.com
🇺🇸 N8533S - Boeing 737NG 800/W - Southwest Airlines SWA3877/WN3877, St Louis Lambert (STL) to Phoenix Sky Harbor (PHX) - 3.5 mi away @ 8175 ft, heading SSW at 322 mph. Spotted 103x before. [12:19:11 PM CDT] #ABB54F #N8533S #B738 #SOUTHWEST #SWA3877 #WN3877 #TakingOff #Departure #ADSB #ADSBbot
Map of the St. Louis area showing the position and track of the aircraft described in the post.
August 17, 2026 at 5:19 PM
abovestlouis.com
🇺🇸 N8560Z - Boeing 737NG 800/W - Southwest Airlines SWA3877/WN3877, St Louis Lambert (STL) to Phoenix Sky Harbor (PHX) - 3.3 mi away @ 6325 ft, heading SW at 303 mph. Spotted 114x before. [04:14:50 PM CDT] #ABC012 #N8560Z #B738 #SOUTHWEST #SWA3877 #WN3877 #Landing #Departure #ADSB #ADSBbot
Map of the St. Louis area showing the position and track of the aircraft described in the post.
August 13, 2026 at 9:15 PM
abovestlouis.com
🇺🇸 N917WN - Boeing 737NG 7H4/W - Southwest Airlines SWA3877/WN3877, St Louis Lambert (STL) to Northwest Florida Beaches (ECP) - 3.6 mi away @ 10550 ft, heading WSW at 264 mph. Spotted 83x before. [01:43:29 PM CDT] #ACB2AD #N917WN #B737 #SOUTHWEST #SWA3877 #WN3877 #TakingOff #ADSB #ADSBbot
Map of the St. Louis area showing the position and track of the aircraft described in the post.
August 12, 2026 at 6:43 PM
abovestlouis.com
🇺🇸 N279WN - Boeing 737NG 7H4/W - Southwest Airlines SWA3877/WN3877 (MDW-STL-PHX-SMF) - 3.7 mi away @ 8925 ft, heading SW at 317 mph. Spotted 94x before. [01:00:48 PM CDT] #A2C9EC #N279WN #B737 #SOUTHWEST #SWA3877 #WN3877 #TakingOff #ADSB #ADSBbot
Map of the St. Louis area showing the position and track of the aircraft described in the post.
August 11, 2026 at 6:00 PM
abovestlouis.com
🇺🇸 N8532S - Boeing 737NG 800/W - Southwest Airlines SWA3877/WN3877, St Louis Lambert (STL) to Phoenix Sky Harbor (PHX) - 3.4 mi away @ 7950 ft, heading WSW at 312 mph. Spotted 96x before. [12:06:59 PM CDT] #ABB52C #N8532S #B738 #SOUTHWEST #SWA3877 #WN3877 #TakingOff #Departure #ADSB #ADSBbot
Map of the St. Louis area showing the position and track of the aircraft described in the post.
August 10, 2026 at 5:07 PM
abovestlouis.com
🇺🇸 N8886C - Boeing 737MAX 8 - Southwest Airlines SWA3877/WN3877, St Louis Lambert (STL) to Phoenix Sky Harbor (PHX) - 3.4 mi away @ 8200 ft, heading SW at 310 mph. Spotted 94x before. [12:03:07 PM CDT] #AC3EBA #N8886C #B38M #SOUTHWEST #SWA3877 #WN3877 #TakingOff #Departure #ADSB #ADSBbot
Map of the St. Louis area showing the position and track of the aircraft described in the post.
August 7, 2026 at 5:03 PM