ICAO: A661BF
Owner: DELTAAIRLINES
Flt: DAL1171 N510DE A21N DTW-BOS
Time: 2026-03-19 15:53:42 EDT
Min Alt: 9075 ft
Min Dist: 1 nm (22deg NNE)
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ICAO: A661BF
Owner: DELTAAIRLINES
Flt: DAL1171 N510DE A21N DTW-BOS
Time: 2026-03-11 16:32:06 EDT
Min Alt: 1475 ft
Min Dist: 1.1 mi (64deg ENE)
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ICAO: A661BF
Owner: DELTAAIRLINES
Flt: DAL1171 N510DE A21N DTW-BOS
Time: 2026-03-11 16:29:14 EDT
Min Alt: 3575 ft
Min Dist: 4.2 nm (62deg ENE)
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ICAO: A661BF
Owner: DELTAAIRLINES
Flt: DAL400 N510DE A21N SFO-BOS
Time: 2026-03-07 15:24:48 EST
Min Alt: 8425 ft
Min Dist: 1.02 nm (24deg NNE)
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ICAO: A661BF
Owner: DELTAAIRLINES
Flt: DAL373 N510DE A21N BOS-LAS-#BOS
Time: 2026-03-06 05:21:00 EST
Min Alt: 8925 ft
Min Dist: 1.2 nm (-21deg NNW)
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ICAO: A661BF
Owner: DELTAAIRLINES
Flt: DAL459 N510DE A21N SEA-BOS
Time: 2026-03-04 15:13:22 EST
Min Alt: 8950 ft
Min Dist: 1.01 nm (27deg NNE)
Squawk: 1535
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ICAO: A661BF
Owner: DELTAAIRLINES
Flt: DAL1157 N510DE A21N PHX-BOS
Time: 2026-03-02 06:08:12 EST
Min Alt: 7975 ft
Min Dist: 1.01 nm (27deg NNE)
Squawk: 2674
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ICAO: A661BF
Owner: DELTAAIRLINES
Flt: DAL1045 N510DE A21N BOS-PHX
Time: 2026-03-01 17:30:05 EST
Min Alt: 3100 ft
Min Dist: 0.5 mi (6deg N)
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ICAO: A661BF
Owner: DELTAAIRLINES
Flt: DAL459 N510DE A21N SEA-BOS
Time: 2026-03-01 15:03:14 EST
Min Alt: 8850 ft
Min Dist: 1.01 nm (23deg NNE)
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ICAO: A661BF
Owner: DELTAAIRLINES
Flt: DAL459 N510DE A21N SEA-BOS
Time: 2026-02-21 15:20:27 EST
Min Alt: 8725 ft
Min Dist: 1.2 nm (54deg NE)
Squawk: 1546
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ICAO: A661BF
Owner: DELTAAIRLINES
Flt: DAL464 N510DE A21N BOS-SLC
Time: 2026-02-12 10:44:32 EST
Min Alt: 10475 ft
Min Dist: 3.9 nm (143deg SE)
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ICAO: A661BF
Owner: DELTAAIRLINES
Flt: DAL703 N510DE A21N PHX-BOS
Time: 2026-02-11 20:04:35 EST
Min Alt: 9450 ft
Min Dist: 1.01 nm (23deg NNE)
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ICAO: A661BF
Owner: DELTAAIRLINES
Flt: DAL473 N510DE A21N SEA-BOS
Time: 2026-02-11 05:57:41 EST
Min Alt: 9475 ft
Min Dist: 1.01 nm (30deg NNE)
Squawk: 3510
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Map of the St. Louis area showing the position and track of the aircraft described in the post.
🇺🇸 N510DE - Airbus A321 271NXSL - Delta Air Lines DAL356/DL356, Fort Lauderdale/Hollywood (FLL) to Seattle-Tacoma (SEA) - 4.4 mi away @ 36525 ft, heading NW at 488 mph. Spotted 3x before. [10:10:17 AM CST] #A661BF #N510DE #A21N #DELTA #DAL356 #DL356 #ADSB #ADSBbot
ICAO: A661BF
Owner: DELTA AIR LINES
Flt: DAL365 N510DE A21N PHX-BOS
Time: 2025-12-28 22:24:52 EST
Min Alt: 8075 ft
Min Dist: 1.1 nm (45° NE)
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Planefence ICAO: A661BF
Flt: DAL365 DELTAAIRLINES ATL - MEX
First seen: 2025-12-28 11:33:21 EST
Min Alt: 2275 ft MSL
Min Dist: 0.33 mi
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ICAO: A661BF
Owner: DELTA AIR LINES
Flt: DAL2298 N510DE A21N SAN-BOS
Time: 2025-12-25 05:48:15 EST
Min Alt: 8050 ft
Min Dist: 3.1 nm (2° N)
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ICAO: A661BF
Owner: DELTA AIR LINES
Flt: DAL400 N510DE A21N SFO-BOS
Time: 2025-12-24 15:15:02 EST
Min Alt: 8725 ft
Min Dist: 1.01 nm (24° NNE)
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ICAO: A661BF
Owner: DELTA AIR LINES
Flt: DAL365 N510DE A21N BOS-PHX
Time: 2025-12-22 09:09:07 EST
Min Alt: 7750 ft
Min Dist: 4.4 nm (151° SSE)
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Planefence ICAO: A661BF
Flt: DAL365 DELTAAIRLINES ATL - MEX
First seen: 2025-12-22 09:07:41 EST
Min Alt: 3850 ft MSL
Min Dist: 0.45 nm
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ICAO: A661BF
Owner: DELTA AIR LINES
Flt: DAL473 N510DE A21N SEA-BOS
Time: 2025-12-22 06:18:24 EST
Min Alt: 8675 ft
Min Dist: 1.1 nm (47° NE)
Squawk: 3566
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Planefence ICAO: A661BF
Flt: DAL900 DELTAAIRLINES MSP - LGA
First seen: 2025-12-12 21:26:56 EST
Min Alt: 4400 ft MSL
Min Dist: 0.48 mi
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ICAO: A661BF
Owner: DELTA AIR LINES
Flt: DAL514 N510DE A21N BOS-PHX-BOS
Time: 2025-12-12 19:42:48 EST
Min Alt: 9125 ft
Min Dist: 1.1 nm (45° NE)
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ICAO: A661BF
Owner: DELTA AIR LINES
Flt: DAL514 N510DE A21N BOS-PHX-BOS
Time: 2025-12-12 19:42:48 EST
Min Alt: 9125 ft
Min Dist: 1.1 nm (45° NE)
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Planefence ICAO: A661BF
Flt: DAL514 DELTAAIRLINES LGA - ATL
First seen: 2025-12-12 08:46:03 EST
Min Alt: 2950 ft MSL
Min Dist: 0.34 mi
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ICAO: A661BF
Owner: DELTA AIR LINES
Flt: DAL474 N510DE A21N SEA-BOS
Time: 2025-12-11 23:08:57 EST
Min Alt: 9500 ft
Min Dist: 1.01 nm (27° NNE)
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ICAO: A661BF
Owner: DELTA AIR LINES
Flt: DAL474 N510DE A21N SEA-BOS
Time: 2025-11-21 00:00:01 EST
Min Alt: 7000 ft
Min Dist: 8.14 nm (26° NNE)
Squawk: 3656
Loudness: -1 dB
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Planefence ICAO: A661BF
Flt: DAL445 DELTAAIRLINES BOS - ATL
First seen: 2025-11-16 19:33:13 EST
Min Alt: 3550 ft MSL
Min Dist: 0.31 mi
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ICAO: A661BF
Owner: DELTA AIR LINES
Flt: DAL473 N510DE A21N SEA-BOS
Time: 2025-10-14 06:51:37 EDT
Min Alt: 8775 ft
Min Dist: 1.1 km (47° NE)
Squawk: 1344
Loudness: -2 dB
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