ICAO: AC3B51
Owner: SOUTHWESTAIRLINES
Flt: SWA1740 N8878L B38M MDW-BOS
Time: 2026-03-26 18:30:44 EDT
Min Alt: 8975 ft
Min Dist: 1.97 nm (21deg NNE)
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ICAO: AC3B51
Owner: SOUTHWESTAIRLINES
Flt: SWA1243 N8878L B38M BOS-BNA
Time: 2026-03-14 14:39:36 EDT
Min Alt: 4550 ft
Min Dist: 0.04 mi (-152deg SSW)
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ICAO: AC3B51
Owner: SOUTHWESTAIRLINES
Flt: SWA4277 N8878L B38M STL-BOS
Time: 2026-03-14 13:13:24 EDT
Min Alt: 9625 ft
Min Dist: 0.99 nm (16deg NNE)
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ICAO: AC3B51
Owner: SOUTHWESTAIRLINES
Flt: SWA4277 N8878L B38M STL-BOS
Time: 2026-03-06 18:01:14 EST
Min Alt: 9375 ft
Min Dist: 1.01 nm (17deg NNE)
Squawk: 2157
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Map of the St. Louis area showing the position and track of the aircraft described in the post.
🇺🇸 N8878L - Boeing 737MAX 8 - Southwest Airlines SWA2493/WN2493, Kansas City (MCI) to St Louis Lambert (STL) - 3.3 mi away @ 8000 ft, heading E at 374 mph. Spotted 56x before. [06:46:47 AM CST] #AC3B51 #N8878L #B38M #SOUTHWEST #SWA2493 #WN2493 #Landing #Arrival #ADSB #ADSBbot
Planefence ICAO: AC3B51
Flt: SWA1432 SOUTHWESTAIRLINES DEN - BNA
First seen: 2026-01-05 14:18:48 EST
Min Alt: 2725 ft MSL
Min Dist: 0.35 mi
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ICAO: AC3B51
Owner: SOUTHWEST AIRLINES
Flt: SWA949 N8878L B38M BNA-BOS
Time: 2026-01-05 12:43:41 EST
Min Alt: 7800 ft
Min Dist: 0.99 nm (23° NNE)
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Planefence ICAO: AC3B51
Flt: SWA343 SOUTHWESTAIRLINES SJC - SAN
First seen: 2025-12-21 20:50:51 EST
Min Alt: 4400 ft MSL
Min Dist: 1.5 nm
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ICAO: AC3B51
Owner: SOUTHWEST AIRLINES
Flt: SWA3341 N8878L B38M STL-BOS
Time: 2025-12-21 18:21:14 EST
Min Alt: 9300 ft
Min Dist: 1.01 nm (31° NNE)
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Map of the St. Louis area showing the position and track of the aircraft described in the post.
🇺🇸 N8878L - Boeing 737MAX 8 - Southwest Airlines SWA2316/WN2316 (MDW-DAL-SAT) - 4.1 mi away @ 34150 ft, heading SW at 468 mph. Spotted 55x before. [07:27:28 PM CST] #AC3B51 #N8878L #B38M #SOUTHWEST #SWA2316 #WN2316 #ADSB #ADSBbot
Map of the St. Louis area showing the position and track of the aircraft described in the post.
🇺🇸 N8878L - Boeing 737MAX 8 - Southwest Airlines SWA3666/WN3666, Orlando (MCO) to St Louis Lambert (STL) - 3.3 mi away @ 2875 ft, heading NNE at 262 mph. Spotted 54x before! [07:00:11 PM CST] #AC3B51 #N8878L #B38M #SOUTHWEST #SWA3666 #WN3666 #Landing #Arrival #ADSB #ADSBbot
Map of the St. Louis area showing the position and track of the aircraft described in the post.
🇺🇸 N8878L - Boeing 737MAX 8 - Southwest Airlines SWA3300/WN3300, Austin-Bergstrom (AUS) to St Louis Lambert (STL) - 3.4 mi away @ 2875 ft, heading ENE at 239 mph. Spotted 53x before! [06:52:16 PM CDT] #AC3B51 #N8878L #B38M #SOUTHWEST #SWA3300 #WN3300 #Landing #Arrival #ADSB #ADSBbot
Map of the St. Louis area showing the position and track of the aircraft described in the post.
🇺🇸 N8878L - Boeing 737MAX 8 - Southwest Airlines SWA2179/WN2179, Dallas Love Field (DAL) to John Glenn Columbus (CMH) - 9.8 mi away @ 39075 ft, heading ENE at 574 mph. Spotted 52x before! [02:44:21 PM CDT] #AC3B51 #N8878L #B38M #SOUTHWEST #SWA2179 #WN2179 #ADSB #ADSBbot
Map of the St. Louis area showing the position and track of the aircraft described in the post.
🇺🇸 N8878L - Boeing 737MAX 8 - Southwest Airlines SWA3293/WN3293, Denver (DEN) to St Louis Lambert (STL) - 3.4 mi away @ 8525 ft, heading E at 349 mph. Spotted 51x before! [01:53:30 PM CDT] #AC3B51 #N8878L #B38M #SOUTHWEST #SWA3293 #WN3293 #Landing #Arrival #ADSB #ADSBbot
Map of the St. Louis area showing the position and track of the aircraft described in the post.
🇺🇸 N8878L - Boeing 737MAX 8 - Southwest Airlines SWA4611/WN4611, Tulsa (TUL) to St Louis Lambert (STL) - 3.4 mi away @ 8600 ft, heading E at 337 mph. Spotted 50x before! [06:08:39 AM CDT] #AC3B51 #N8878L #B38M #SOUTHWEST #SWA4611 #WN4611 #Landing #Arrival #ADSB #ADSBbot
Map of the St. Louis area showing the position and track of the aircraft described in the post.
🇺🇸 N8878L - Boeing 737MAX 8 - Southwest Airlines SWA2763/WN2763, St Louis Lambert (STL) to Tulsa (TUL) - 3.3 mi away @ 8625 ft, heading SW at 338 mph. Spotted 49x before! [11:03:08 PM CDT] #AC3B51 #N8878L #B38M #SOUTHWEST #SWA2763 #WN2763 #TakingOff #Departure #ADSB #ADSBbot
Map of the St. Louis area showing the position and track of the aircraft described in the post.
🇺🇸 N8878L - Boeing 737MAX 8 - Southwest Airlines SWA671/WN671, Chicago O'Hare (ORD) to Austin-Bergstrom (AUS) - 4.7 mi away @ 39800 ft, heading SW at 448 mph. Spotted 48x before! [05:13:31 PM CDT] #AC3B51 #N8878L #B38M #SOUTHWEST #SWA671 #WN671 #ADSB #ADSBbot
Map of the St. Louis area showing the position and track of the aircraft described in the post.
🇺🇸 N8878L - Boeing 737MAX 8 - Southwest Airlines SWA684/WN684, Austin-Bergstrom (AUS) to Chicago Midway (MDW) - 4.3 mi away @ 30400 ft, heading NE at 541 mph. Spotted 47x before! [07:59:20 AM CDT] #AC3B51 #N8878L #B38M #SOUTHWEST #SWA684 #WN684 #ADSB #ADSBbot
Map of the St. Louis area showing the position and track of the aircraft described in the post.
🇺🇸 N8878L - Boeing 737MAX 8 - Southwest Airlines SWA611/WN611 (PHX-STL-MYR) - 3.3 mi away @ 8625 ft, heading E at 350 mph. Spotted 46x before! [12:26:54 PM CDT] #AC3B51 #N8878L #B38M #SOUTHWEST #SWA611 #WN611 #Landing #ADSB #ADSBbot
Map of the St. Louis area showing the position and track of the aircraft described in the post.
🇺🇸 N8878L - Boeing 737MAX 8 - Southwest Airlines SWA2002/WN2002, Denver (DEN) to St Louis Lambert (STL) - 3.3 mi away @ 8300 ft, heading E at 349 mph. Spotted 45x before! [11:17:45 AM CDT] #AC3B51 #N8878L #B38M #SOUTHWEST #SWA2002 #WN2002 #Landing #Arrival #ADSB #ADSBbot
Map of the St. Louis area showing the position and track of the aircraft described in the post.
🇺🇸 N8878L - Boeing 737MAX 8 - Southwest Airlines SWA1320/WN1320, Harry Reid (LAS) to Indianapolis (IND) - 4.4 mi away @ 37950 ft, heading ENE at 609 mph. Spotted 44x before! [12:38:30 PM CDT] #AC3B51 #N8878L #B38M #SOUTHWEST #SWA1320 #WN1320 #ADSB #ADSBbot
Planefence ICAO: AC3B51
Flt: SWA354 SOUTHWESTAIRLINES SAN - OAK
First seen: 2025-05-19 16:02:41 EDT
Min Alt: 2725 ft MSL
Min Dist: 0.29 mi
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Map of the St. Louis area showing the position and track of the aircraft described in the post.
🇺🇸 N8878L - Boeing 737MAX 8 - Southwest Airlines SWA1199/WN1199, Fort Lauderdale/Hollywood (FLL) to St Louis Lambert (STL) - 3.4 mi away @ 3275 ft, heading NE at 253 mph. Spotted 43x before! [07:46:55 AM CDT] #AC3B51 #N8878L #B38M #SOUTHWEST #SWA1199 #WN1199 #Landing #Arrival #ADSB #ADSBbot
Map of the St. Louis area showing the position and track of the aircraft described in the post.
🇺🇸 N8878L - Boeing 737MAX 8 - Southwest Airlines SWA933/WN933, Chicago O'Hare (ORD) to Dallas Love Field (DAL) - 4.4 mi away @ 36700 ft, heading SW at 478 mph. Spotted 42x before! [02:20:36 PM CDT] #AC3B51 #N8878L #B38M #SOUTHWEST #SWA933 #WN933 #ADSB #ADSBbot
Map of the St. Louis area showing the position and track of the aircraft described in the post.
🇺🇸 N8878L - Boeing 737MAX 8 - Southwest Airlines SWA454/WN454, Denver (DEN) to Baltimore/Washington Thurgood Marshall (BWI) - 4.9 mi away @ 39250 ft, heading E at 613 mph. Spotted 41x before! [08:54:52 PM CDT] #AC3B51 #N8878L #B38M #SOUTHWEST #SWA454 #WN454 #ADSB #ADSBbot
Map of the St. Louis area showing the position and track of the aircraft described in the post.
🇺🇸 N8878L - Boeing 737MAX 8 - Southwest Airlines SWA3932/WN3932, San Antonio (SAT) to St Louis Lambert (STL) - 3.3 mi away @ 8375 ft, heading E at 358 mph. Spotted 40x before! [08:07:09 AM CDT] #AC3B51 #N8878L #B38M #SOUTHWEST #SWA3932 #WN3932 #Landing #Arrival #ADSB #ADSBbot
Map of the St. Louis area showing the position and track of the aircraft described in the post.
🇺🇸 N8878L - Boeing 737MAX 8 - Southwest Airlines SWA2280/WN2280, Chicago O'Hare (ORD) to Dallas Love Field (DAL) - 4.8 mi away @ 36425 ft, heading SW at 508 mph. Spotted 39x before! [06:40:45 PM CST] #AC3B51 #N8878L #B38M #SOUTHWEST #SWA2280 #WN2280 #ADSB #ADSBbot
Map of the St. Louis area showing the position and track of the aircraft described in the post.
🇺🇸 N8878L - Boeing 737MAX 8 - Southwest Airlines SWA2125/WN2125, Harry Reid (LAS) to St Louis Lambert (STL) - 3.3 mi away @ 8675 ft, heading E at 323 mph. Spotted 38x before! [10:01:37 PM CST] #AC3B51 #N8878L #B38M #SOUTHWEST #SWA2125 #WN2125 #Landing #Arrival #ADSB #ADSBbot
Map of the St. Louis area showing the position and track of the aircraft described in the post.
🇺🇸 N8878L - Boeing 737MAX 8 - Southwest Airlines SWA2883/WN2883, Nashville (BNA) to Eppley Airfield (OMA) - 4.4 mi away @ 36625 ft, heading NW at 455 mph. Spotted 37x before! [10:44:25 AM CST] #AC3B51 #N8878L #B38M #SOUTHWEST #SWA2883 #WN2883 #ADSB #ADSBbot
