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ICAO: A613E0
Owner: ALASKAAIRLINES
Flt: ASA460 N491AS B739 SEA-BOS
Time: 2026-03-24 23:04:49 EDT
Min Alt: 8875 ft
Min Dist: 0.99 nm (20deg NNE)

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ICAO: A613E0
Owner: ALASKAAIRLINES
Flt: ASA358 N491AS B739 PDX-BOS
Time: 2026-02-15 15:04:37 EST
Min Alt: 9300 ft
Min Dist: 1 nm (24deg NNE)

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ICAO: A613E0
Owner: ALASKAAIRLINES
Flt: ASA309 N491AS B739 BOS-SEA
Time: 2026-02-09 19:10:01 EST
Min Alt: 2775 ft
Min Dist: 0.8 mi (106deg ESE)

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ICAO: A613E0
Owner: ALASKAAIRLINES
Flt: ASA390 N491AS B739
Time: 2026-02-09 17:15:49 EST
Min Alt: 9375 ft
Min Dist: 0.99 nm (20deg NNE)

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ICAO: A613E0
Owner: ALASKAAIRLINES
Flt: ASA460 N491AS B739 SEA-BOS
Time: 2026-02-06 23:47:43 EST
Min Alt: 10125 ft
Min Dist: 0.91 nm (28deg NNE)

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ICAO: A613E0
Owner: ALASKA AIRLINES
Flt: ASA459 N491AS B739 BOS-SEA
Time: 2026-01-24 07:41:10 EST
Min Alt: 2675 ft
Min Dist: 0.3 mi (68° ENE)
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ICAO: A613E0
Owner: ALASKA AIRLINES
Flt: ASA460 N491AS B739 SEA-BOS
Time: 2026-01-23 23:19:43 EST
Min Alt: 8400 ft
Min Dist: 1.01 nm (17° NNE)
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ICAO: A613E0
Owner: ALASKA AIRLINES
Flt: ASA1457 N491AS B739 SAN-BOS
Time: 2025-12-23 04:19:10 EST
Min Alt: 8875 ft
Min Dist: 1.7 nm (52° NE)
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ICAO: A613E0
Owner: ALASKA AIRLINES
Flt: ASA356 N491AS B739 SFO-BOS
Time: 2025-12-01 16:08:34 EST
Min Alt: 9075 ft
Min Dist: 1.01 nm (27° NNE)
Loudness: 0 dB
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ICAO: A613E0
Owner: ALASKA AIRLINES
Flt: ASA1319 N491AS B739 BOS-PDX
Time: 2025-12-01 17:58:08 EST
Min Alt: 5825 ft
Min Dist: 6.6 nm (80° E)
Loudness: -1 dB
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ICAO: A613E0
Owner: ALASKA AIRLINES
Flt: ASA306 N491AS B739 SEA-BOS
Time: 2025-10-15 16:14:40 EDT
Min Alt: 9625 ft
Min Dist: 1 km (25° NNE)
Loudness: 0 dB
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Map of the St. Louis area showing the position and track of the aircraft described in the post.

Map of the St. Louis area showing the position and track of the aircraft described in the post.

🇺🇸 N491AS - Boeing 737NG 990ER/W - Alaska Airlines ASA291/AS291 (SEA-STL-SEA) - 3.5 mi away @ 13450 ft, heading NW at 425 mph. Spotted 7x before! [07:06:13 PM CDT] #A613E0 #N491AS #B739 #ALASKA #ASA291 #AS291 #TakingOff #ADSB #ADSBbot

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Map of the St. Louis area showing the position and track of the aircraft described in the post.

Map of the St. Louis area showing the position and track of the aircraft described in the post.

🇺🇸 N491AS - Boeing 737NG 990ER/W - Alaska Airlines ASA291/AS291 (STL-PDX-SMF) - 3.7 mi away @ 13550 ft, heading NW at 411 mph. Spotted 6x before! [08:05:22 PM CDT] #A613E0 #N491AS #B739 #ALASKA #ASA291 #AS291 #TakingOff #ADSB #ADSBbot

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