ICAO: A9BF4B
Owner: DELTAAIRLINES
Flt: DAL437 N727TW B752 LAX-BOS
Time: 2026-03-18 22:47:35 EDT
Min Alt: 7125 ft
Min Dist: 2.8 nm (-13deg NNW)
dev adsb planefence by kx1t - sdr-e airplanes flightaware faa
ICAO: A9BF4B
Owner: DELTAAIRLINES
Flt: DAL479 N727TW B752 BOS-LAX
Time: 2026-03-18 07:56:26 EDT
Min Alt: 12625 ft
Min Dist: 0.72 nm (63deg ENE)
dev adsb planefence by kx1t - sdr-e airplanes flightaware faa
ICAO: A9BF4B
Owner: DELTAAIRLINES
Flt: DAL507 N727TW B752 LAX-BOS
Time: 2026-03-18 05:36:59 EDT
Min Alt: 8650 ft
Min Dist: 1.01 nm (27deg NNE)
dev adsb planefence by kx1t - sdr-e airplanes flightaware faa
ICAO: A9BF4B
Owner: DELTAAIRLINES
Flt: DAL437 N727TW B752 LAX-BOS
Time: 2026-03-05 20:50:56 EST
Min Alt: 8750 ft
Min Dist: 1.1 nm (-13deg NNW)
Squawk: 1010
dev adsb planefence by kx1t - sdr-e airplanes flightaware faa
ICAO: A9BF4B
Owner: DELTAAIRLINES
Flt: DAL507 N727TW B752 LAX-BOS
Time: 2026-03-05 05:07:41 EST
Min Alt: 8950 ft
Min Dist: 1.01 nm (29deg NNE)
dev adsb planefence by kx1t - sdr-e airplanes flightaware faa
ICAO: A9BF4B
Owner: DELTAAIRLINES
Flt: DAL437 N727TW B752 LAX-BOS
Time: 2026-02-21 20:47:46 EST
Min Alt: 10800 ft
Min Dist: 0.99 nm (21deg NNE)
Squawk: 7310
dev adsb planefence by kx1t - sdr-e airplanes flightaware faa
ICAO: A9BF4B
Owner: DELTAAIRLINES
Flt: DAL507 N727TW B752 LAX-BOS
Time: 2026-02-21 04:41:10 EST
Min Alt: 9375 ft
Min Dist: 1.01 nm (29deg NNE)
dev adsb planefence by kx1t - sdr-e airplanes flightaware faa
ICAO: A9BF4B
Owner: DELTAAIRLINES
Flt: DAL639 N727TW B752 LAX-BOS
Time: 2026-02-17 15:28:38 EST
Min Alt: 7700 ft
Min Dist: 1.01 nm (30deg NNE)
Squawk: 3450
dev adsb planefence by kx1t - sdr-e airplanes flightaware faa
ICAO: A9BF4B
Owner: DELTAAIRLINES
Flt: DAL507 N727TW B752 LAX-BOS
Time: 2026-02-10 05:29:48 EST
Min Alt: 9300 ft
Min Dist: 1.66 nm (-45deg NW)
Squawk: 7361
dev adsb planefence by kx1t - sdr-e airplanes flightaware faa
ICAO: A9BF4B
Owner: DELTAAIRLINES
Flt: DAL321 N727TW B752 BOS-LAX
Time: 2026-02-07 19:19:34 EST
Min Alt: 12925 ft
Min Dist: 4.2 nm (-131deg SW)
dev adsb planefence by kx1t - sdr-e airplanes flightaware faa
ICAO: A9BF4B
Owner: DELTAAIRLINES
Flt: DAL639 N727TW B752 LAX-BOS
Time: 2026-02-07 16:28:04 EST
Min Alt: 7450 ft
Min Dist: 0.2 nm (6deg N)
dev adsb planefence by kx1t - sdr-e airplanes flightaware faa
ICAO: A9BF4B
Owner: DELTAAIRLINES
Flt: DAL639 N727TW B752 LAX-BOS
Time: 2026-02-07 16:06:39 EST
Min Alt: 11300 ft
Min Dist: 1.1 nm (46deg NE)
dev adsb planefence by kx1t - sdr-e airplanes flightaware faa
ICAO: A9BF4B
Owner: DELTAAIRLINES
Flt: DAL639 N727TW B752 LAX-BOS
Time: 2026-02-06 15:55:38 EST
Min Alt: 9475 ft
Min Dist: 1 nm (26deg NNE)
dev adsb planefence by kx1t - sdr-e airplanes flightaware faa
ICAO: A9BF4B
Owner: DELTAAIRLINES
Flt: DAL318 N727TW B752 BOS-LAX
Time: 2026-02-05 13:08:17 EST
Min Alt: 13225 ft
Min Dist: 2.98 nm (82deg E)
dev adsb planefence by kx1t - sdr-e airplanes flightaware faa
ICAO: A9BF4B
Owner: DELTAAIRLINES
Flt: DAL437 N727TW B752 LAX-BOS
Time: 2026-02-03 20:55:35 EST
Min Alt: 7575 ft
Min Dist: 0.99 nm (17deg NNE)
dev adsb planefence by kx1t - sdr-e airplanes flightaware faa
ICAO: A9BF4B
Owner: DELTAAIRLINES
Flt: DAL479 N727TW B752 BOS-LAX
Time: 2026-02-03 08:03:12 EST
Min Alt: 11750 ft
Min Dist: 1.87 nm (-119deg WSW)
dev adsb planefence by kx1t - sdr-e airplanes flightaware faa
ICAO: A9BF4B
Owner: DELTAAIRLINES
Flt: DAL507 N727TW B752 LAX-BOS
Time: 2026-02-03 05:38:36 EST
Min Alt: 9150 ft
Min Dist: 1.01 nm (7deg N)
Squawk: 2024
dev adsb planefence by kx1t - sdr-e airplanes flightaware faa
ICAO: A9BF4B
Owner: DELTA AIR LINES
Flt: DAL321 N727TW B752 BOS-LAX
Time: 2026-01-29 17:56:00 EST
Min Alt: 4925 ft
Min Dist: 0.4 mi (-9° N)
adsb planefence by kx1t -•planefence•adsbexchange•flightaware•faa
ICAO: A9BF4B
Owner: DELTA AIR LINES
Flt: DAL639 N727TW B752 LAX-BOS
Time: 2026-01-29 15:30:38 EST
Min Alt: 9225 ft
Min Dist: 1 nm (20° NNE)
dev adsb planefence by kx1t -•sdr-e•airplanes•flightaware•faa
ICAO: A9BF4B
Owner: DELTA AIR LINES
Flt: DAL321 N727TW B752 BOS-LAX
Time: 2026-01-28 18:17:56 EST
Min Alt: 3375 ft
Min Dist: 0.5 mi (98° E)
adsb planefence by kx1t -•planefence•adsbexchange•flightaware•faa
ICAO: A9BF4B
Owner: DELTA AIR LINES
Flt: DAL639 N727TW B752 LAX-BOS
Time: 2026-01-28 16:15:29 EST
Min Alt: 9150 ft
Min Dist: 1.01 nm (31° NNE)
dev adsb planefence by kx1t -•sdr-e•airplanes•flightaware•faa
ICAO: A9BF4B
Owner: DELTA AIR LINES
Flt: DAL318 N727TW B752 BOS-LAX
Time: 2026-01-27 14:44:07 EST
Min Alt: 13200 ft
Min Dist: 1.2 nm (97° E)
dev adsb planefence by kx1t -•sdr-e•airplanes•flightaware•faa
ICAO: A9BF4B
Owner: DELTA AIR LINES
Flt: DAL639 N727TW B752 LAX-BOS
Time: 2026-01-01 15:35:12 EST
Min Alt: 9500 ft
Min Dist: 1.01 nm (29° NNE)
dev adsb planefence by kx1t -•sdr-e•airplanes•flightaware•faa
ICAO: A9BF4B
Owner: DELTA AIR LINES
Flt: DAL437 N727TW # LAX-BOS
Time: 2025-12-30 20:19:06 EST
Min Alt: 9150 ft
Min Dist: 1.01 nm (28° NNE)
dev adsb planefence by kx1t -•sdr-e•airplanes•flightaware•faa
ICAO: A9BF4B
Owner: DELTA AIR LINES
Flt: DAL437 N727TW B752 LAX-BOS
Time: 2025-12-30 20:19:06 EST
Min Alt: 9150 ft
Min Dist: 1.01 nm (28° NNE)
dev adsb planefence by kx1t -•sdr-e•airplanes•flightaware•faa
ICAO: A9BF4B
Owner: DELTA AIR LINES
Flt: DAL437 N727TW B752 LAX-BOS
Time: 2025-12-30 20:19:06 EST
Min Alt: 9150 ft
Min Dist: 1.01 nm (28° NNE)
dev adsb planefence by kx1t -•sdr-e•airplanes•flightaware•faa
Planefence ICAO: A9BF4B
Flt: DAL479 DELTAAIRLINES BOS - LAX
First seen: 2025-12-30 08:04:33 EST
Min Alt: 3875 ft MSL
Min Dist: 0.66 mi
adsb planefence by kx1t - adsbexchange - planefence
ICAO: A9BF4B
Owner: DELTA AIR LINES
Flt: DAL437 N727TW B752 LAX-BOS
Time: 2025-10-20 02:29:05 EDT
Min Alt: 9575 ft
Min Dist: 1.3 km (19° NNE)
Loudness: 0 dB
dev adsb planefence by kx1t -•sdr-e•airplanes•flightaware•faa
Map of the St. Louis area showing the position and track of the aircraft described in the post.
🇺🇸 N727TW - Boeing 757 231/W - Delta Air Lines DAL668/DL668, San Francisco (SFO) to John F Kennedy (JFK) - 4.8 mi away @ 39600 ft, heading ENE at 587 mph. Spotted 5x before! [05:34:46 PM CDT] #A9BF4B #N727TW #B752 #DELTA #DAL668 #DL668 #ADSB #ADSBbot
