#WN3121
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🇺🇸 N9028R - BOEING 737-8 - Southwest Airlines SWA3121/WN3121, Pensacola (PNS) to St Louis Lambert (STL) - 3.6 mi away @ 3600 ft, heading NE at 264 mph. Spotted for first time! [02:44:20 PM CDT] #AC7A1A #N9028R #B38M #SOUTHWEST #SWA3121 #WN3121 #Landing #Arrival #ADSB #ADSBbot
Map of the St. Louis area showing the position and track of the aircraft described in the post.
September 25, 2026 at 7:44 PM
abovestlouis.com
🇺🇸 N8809L - Boeing 737MAX 8 - Southwest Airlines SWA3121/WN3121, Pensacola (PNS) to St Louis Lambert (STL) - 3.5 mi away @ 3900 ft, heading N at 249 mph. Spotted 99x before. [03:03:33 PM CDT] #AC2173 #N8809L #B38M #SOUTHWEST #SWA3121 #WN3121 #Landing #Arrival #ADSB #ADSBbot
Map of the St. Louis area showing the position and track of the aircraft described in the post.
September 24, 2026 at 8:03 PM
abovestlouis.com
🇺🇸 N224WN - Boeing 737NG 7H4/W - Southwest Airlines SWA3121/WN3121, Pensacola (PNS) to St Louis Lambert (STL) - 8.5 mi away @ 825 ft, heading ESE at 163 mph. Spotted 83x before. [02:36:11 PM CDT] #A1F1DE #N224WN #B737 #SOUTHWEST #SWA3121 #WN3121 #Arrival #ADSB #ADSBbot
Map of the St. Louis area showing the position and track of the aircraft described in the post.
September 18, 2026 at 7:37 PM
abovestlouis.com
🇺🇸 N8508W - Boeing 737NG 800/W - Southwest Airlines SWA3121/WN3121, Pensacola (PNS) to St Louis Lambert (STL) - 5.4 mi away @ 3100 ft, heading ENE at 246 mph. Spotted 119x before. [02:40:41 PM CDT] #ABAADD #N8508W #B738 #SOUTHWEST #SWA3121 #WN3121 #Landing #Arrival #ADSB #ADSBbot
Map of the St. Louis area showing the position and track of the aircraft described in the post.
September 14, 2026 at 7:40 PM
abovestlouis.com
🇺🇸 N8894Q - Boeing 737MAX 8 - Southwest Airlines SWA3121/WN3121, Pensacola (PNS) to St Louis Lambert (STL) - 4.0 mi away @ 2475 ft, heading NE at 253 mph. Spotted 66x before. [02:38:44 PM CDT] #AC4237 #N8894Q #B38M #SOUTHWEST #SWA3121 #WN3121 #Landing #Arrival #ADSB #ADSBbot
Map of the St. Louis area showing the position and track of the aircraft described in the post.
September 11, 2026 at 7:38 PM
abovestlouis.com
🇺🇸 N8982S - BOEING 737-8 - SOUTHWEST AIRLINES CO SWA3121/WN3121, Pensacola (PNS) to St Louis Lambert (STL) - 3.6 mi away @ 3825 ft, heading NW at 221 mph. Spotted 20x before. [02:53:14 PM CDT] #AC65BB #N8982S #B38M #SWA3121 #WN3121 #Landing #Arrival #ADSB #ADSBbot
Map of the St. Louis area showing the position and track of the aircraft described in the post.
September 7, 2026 at 7:53 PM
abovestlouis.com
🇺🇸 N8871Q - Boeing 737MAX 8 - Southwest Airlines SWA3121/WN3121, Pensacola (PNS) to St Louis Lambert (STL) - 3.3 mi away @ 3775 ft, heading NNE at 263 mph. Spotted 86x before. [03:00:53 PM CDT] #AC3A60 #N8871Q #B38M #SOUTHWEST #SWA3121 #WN3121 #Landing #Arrival #ADSB #ADSBbot
Map of the St. Louis area showing the position and track of the aircraft described in the post.
August 24, 2026 at 8:01 PM
abovestlouis.com
🇺🇸 N8828L - Boeing 737MAX 8 - Southwest Airlines SWA3121/WN3121, Pensacola (PNS) to St Louis Lambert (STL) - 4.6 mi away @ 3800 ft, heading NE at 265 mph. Spotted 105x before. [03:34:24 PM CDT] #AC28BE #N8828L #B38M #SOUTHWEST #SWA3121 #WN3121 #Landing #Arrival #ADSB #ADSBbot
Map of the St. Louis area showing the position and track of the aircraft described in the post.
August 14, 2026 at 8:34 PM
abovestlouis.com
🇺🇸 N8979L - Southwest Airlines SWA3121/WN3121, Okc Will Rogers (OKC) to Chicago Midway (MDW) - 3.9 mi away @ 34350 ft, heading NE at 573 mph. Spotted 18x before. [06:07:23 AM CDT] #AC62F3 #N8979L #B38M #SOUTHWEST #SWA3121 #WN3121 #ADSB #ADSBbot
Map of the St. Louis area showing the position and track of the aircraft described in the post.
June 20, 2026 at 11:07 AM
abovestlouis.com
🇺🇸 N246LV - Boeing 737NG 7H4/W - Southwest Airlines SWA3121/WN3121 (MDW-DAL-PHX) - 4.7 mi away @ 39800 ft, heading SW at 521 mph. Spotted 68x before! [04:01:22 PM CDT] #A24757 #N246LV #B737 #SOUTHWEST #SWA3121 #WN3121 #ADSB #ADSBbot
Map of the St. Louis area showing the position and track of the aircraft described in the post.
September 13, 2025 at 9:01 PM
abovestlouis.com
🇺🇸 N424WN - Boeing 737NG 7H4/W - Southwest Airlines SWA3121/WN3121 (MDW-DAL-PHX) - 4.9 mi away @ 41725 ft, heading SW at 506 mph. Spotted 66x before! [04:16:10 PM CDT] #A50C7C #N424WN #B737 #SOUTHWEST #SWA3121 #WN3121 #ADSB #ADSBbot
Map of the St. Louis area showing the position and track of the aircraft described in the post.
August 30, 2025 at 9:16 PM
abovestlouis.com
🇺🇸 N287WN - Boeing 737NG 7H4/W - Southwest Airlines SWA3121/WN3121 (MDW-DAL-PHX) - 11.5 mi away @ 39675 ft, heading SW at 477 mph. Spotted 74x before! [04:57:43 PM CDT] #A2E9FD #N287WN #B737 #SOUTHWEST #SWA3121 #WN3121 #ADSB #ADSBbot
Map of the St. Louis area showing the position and track of the aircraft described in the post.
August 23, 2025 at 9:57 PM
abovestlouis.com
🇺🇸 N276WN - Boeing 737NG 7H4/W - Southwest Airlines SWA3121/WN3121 (MDW-DAL-PHX) - 4.9 mi away @ 41975 ft, heading SW at 515 mph. Spotted 82x before! [04:05:20 PM CDT] #A2BEC7 #N276WN #B737 #SOUTHWEST #SWA3121 #WN3121 #ADSB #ADSBbot
Map of the St. Louis area showing the position and track of the aircraft described in the post.
August 9, 2025 at 9:05 PM