ICAO: A4B7D7
Owner: ALASKAAIRLINES
Flt: ASA358 N403AS B739 PDX-BOS
Time: 2026-04-09 14:46:24 EDT
Min Alt: 8775 ft
Min Dist: 1.1 nm (47deg NE)
Squawk: 3035
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ICAO: A4B7D7
Owner: ALASKAAIRLINES
Flt: ASA358 N403AS B739 PDX-BOS
Time: 2026-04-02 14:59:53 EDT
Min Alt: 8950 ft
Min Dist: 0.99 nm (21deg NNE)
Squawk: 1651
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ICAO: A4B7D7
Owner: ALASKAAIRLINES
Flt: ASA306 N403AS B739 SEA-BOS-#SEA
Time: 2026-03-24 16:18:54 EDT
Min Alt: 10350 ft
Min Dist: 0.99 nm (15deg NNE)
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ICAO: A4B7D7
Owner: ALASKAAIRLINES
Flt: ASA306 N403AS B739 SEA-BOS-#SEA
Time: 2026-03-24 16:18:54 EDT
Min Alt: 10350 ft
Min Dist: 0.99 nm (15deg NNE)
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ICAO: A4B7D7
Owner: ALASKAAIRLINES
Flt: ASA537 N403AS B739 BOS-SEA
Time: 2026-03-14 11:52:08 EDT
Min Alt: 2875 ft
Min Dist: 0.6 mi (98deg E)
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ICAO: A4B7D7
Owner: ALASKAAIRLINES
Flt: ASA306 N403AS B739 SEA-BOS-#SEA
Time: 2026-03-06 15:57:15 EST
Min Alt: 8950 ft
Min Dist: 1.1 nm (47deg NE)
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ICAO: A4B7D7
Owner: ALASKAAIRLINES
Flt: ASA390 N403AS B739 SAN-BOS
Time: 2026-02-13 16:40:02 EST
Min Alt: 9325 ft
Min Dist: 0.99 nm (20deg NNE)
Squawk: 7052
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ICAO: A4B7D7
Owner: ALASKAAIRLINES
Flt: ASA306 N403AS B739 SEA-BOS-#SEA
Time: 2026-02-12 16:15:17 EST
Min Alt: 9600 ft
Min Dist: 0.99 nm (18deg NNE)
Squawk: 1507
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ICAO: A4B7D7
Owner: ALASKA AIRLINES
Flt: ASA306 N403AS B739 SEA-BOS-SEA
Time: 2025-12-22 15:53:44 EST
Min Alt: 8600 ft
Min Dist: 0.99 nm (23° NNE)
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ICAO: A4B7D7
Owner: ALASKA AIRLINES
Flt: ASA460 N403AS B739 SEA-BOS
Time: 2025-12-19 00:02:13 EST
Min Alt: 8150 ft
Min Dist: 1.01 nm (26° NNE)
Squawk: 1615
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Map of the St. Louis area showing the position and track of the aircraft described in the post.
🇺🇸 N403AS - Boeing 737NG 990ER/W - Alaska Airlines ASA402/AS402, Seattle-Tacoma (SEA) to Charleston Afb/International (CHS) - 4.6 mi away @ 36475 ft, heading SE at 619 mph. Spotted 8x before. [04:11:36 PM CST] #A4B7D7 #N403AS #B739 #ALASKA #ASA402 #AS402 #ADSB #ADSBbot
Map of the St. Louis area showing the position and track of the aircraft described in the post.
🇺🇸 N403AS - Boeing 737NG 990ER/W - Alaska Airlines ASA473/AS473, St Louis Lambert (STL) to Seattle-Tacoma (SEA) - 3.3 mi away @ 12175 ft, heading NW at 430 mph. Spotted 7x before! [06:16:09 AM CDT] #A4B7D7 #N403AS #B739 #ALASKA #ASA473 #AS473 #TakingOff #Departure #ADSB #ADSBbot
Planefence ICAO: A4B7D7
Flt: ASA389 ALASKAAIRLINES SAN - SJC
First seen: 2025-07-08 18:48:21 EDT
Min Alt: 2050 ft MSL
Min Dist: 0.3 mi
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Planefence ICAO: A4B7D7
Flt: ASA308 ALASKAAIRLINES SFO - LAX
First seen: 2025-06-20 08:04:28 EDT
Min Alt: 2550 ft MSL
Min Dist: 0.33 mi
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Map of the St. Louis area showing the position and track of the aircraft described in the post.
🇺🇸 N403AS - Boeing 737NG 990ER/W - Alaska Airlines ASA575/AS575, St Louis Lambert (STL) to Seattle-Tacoma (SEA) - 3.3 mi away @ 12600 ft, heading NW at 404 mph. Spotted 6x before! [07:05:13 PM CDT] #A4B7D7 #N403AS #B739 #ALASKA #ASA575 #AS575 #TakingOff #Departure #ADSB #ADSBbot
Planefence ICAO: A4B7D7
Flt: ASA1485 ALASKAAIRLINES BOS - SAN
First seen: 2025-04-30 16:50:38 EDT
Min Alt: 2050 ft MSL
Min Dist: 0.27 mi
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