Owner: #UNITEDAIRLINES
Flt: #UAL721 #N17443 #B39M #BOS-#IAD
Time: 2026-08-09 14:43:07 EDT
Min Alt: 4875 ft
Min Dist: 0.6 nm (-179deg S)
airplanes flightaware faa
Owner: #UNITEDAIRLINES
Flt: #UAL721 #N17443 #B39M #BOS-#IAD
Time: 2026-08-09 14:43:07 EDT
Min Alt: 4875 ft
Min Dist: 0.6 nm (-179deg S)
airplanes flightaware faa
Owner: #UNITEDAIRLINES
Flt: #UAL721 #N17443 #B39M #BOS-#IAD
Time: 2026-08-09 14:42:17 EDT
Min Alt: 3200 ft
Min Dist: 0.2 mi (109deg ESE)
#adsb <a href="/hashtag/planefence" class="hover:underline text-blue-600 dark:text-sky-400 no-card-link">#planefence by kx1t - planefence adsbexchange flightaware faa
Owner: #UNITEDAIRLINES
Flt: #UAL721 #N17443 #B39M #BOS-#IAD
Time: 2026-08-09 14:42:17 EDT
Min Alt: 3200 ft
Min Dist: 0.2 mi (109deg ESE)
#adsb <a href="/hashtag/planefence" class="hover:underline text-blue-600 dark:text-sky-400 no-card-link">#planefence by kx1t - planefence adsbexchange flightaware faa
Owner: #UNITEDAIRLINES
Flt: #UAL721 #N68834 #B739 #BOS-#IAD
Time: 2026-07-23 14:33:17 EDT
Min Alt: 4625 ft
Min Dist: 0.58 nm (158deg SSE)
airplanes flightaware faa
Owner: #UNITEDAIRLINES
Flt: #UAL721 #N68834 #B739 #BOS-#IAD
Time: 2026-07-23 14:33:17 EDT
Min Alt: 4625 ft
Min Dist: 0.58 nm (158deg SSE)
airplanes flightaware faa
Owner: #UNITEDAIRLINES
Flt: #UAL721 #N68834 #B739 #BOS-#IAD
Time: 2026-07-23 14:32:36 EDT
Min Alt: 3275 ft
Min Dist: 0.16 mi (-99deg W)
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Owner: #UNITEDAIRLINES
Flt: #UAL721 #N68834 #B739 #BOS-#IAD
Time: 2026-07-23 14:32:36 EDT
Min Alt: 3275 ft
Min Dist: 0.16 mi (-99deg W)
#adsb <a href="/hashtag/planefence" class="hover:underline text-blue-600 dark:text-sky-400 no-card-link">#planefence by kx1t - planefence adsbexchange flightaware faa
Owner: #UNITEDAIRLINES
Flt: #UAL721 #N34460 #B739 #BOS-#IAD
Time: 2026-07-19 14:52:58 EDT
Min Alt: 4925 ft
Min Dist: 1.53 nm (86deg E)
airplanes flightaware faa
Owner: #UNITEDAIRLINES
Flt: #UAL721 #N34460 #B739 #BOS-#IAD
Time: 2026-07-19 14:52:58 EDT
Min Alt: 4925 ft
Min Dist: 1.53 nm (86deg E)
airplanes flightaware faa
Owner: #UNITEDAIRLINES
Flt: #UAL721 #N34460 #B739 #BOS-#IAD
Time: 2026-07-19 14:52:36 EDT
Min Alt: 3975 ft
Min Dist: 0.02 mi (109deg ESE)
#adsb <a href="/hashtag/planefence" class="hover:underline text-blue-600 dark:text-sky-400 no-card-link">#planefence by kx1t - planefence adsbexchange flightaware faa
Owner: #UNITEDAIRLINES
Flt: #UAL721 #N34460 #B739 #BOS-#IAD
Time: 2026-07-19 14:52:36 EDT
Min Alt: 3975 ft
Min Dist: 0.02 mi (109deg ESE)
#adsb <a href="/hashtag/planefence" class="hover:underline text-blue-600 dark:text-sky-400 no-card-link">#planefence by kx1t - planefence adsbexchange flightaware faa
Owner: #UNITEDAIRLINES
Flt: #UAL721 #N66893 #B739 #BOS-#IAD
Time: 2026-07-17 14:27:48 EDT
Min Alt: 2975 ft
Min Dist: 0.4 mi (106deg ESE)
#adsb <a href="/hashtag/planefence" class="hover:underline text-blue-600 dark:text-sky-400 no-card-link">#planefence by kx1t - planefence adsbexchange flightaware faa
Owner: #UNITEDAIRLINES
Flt: #UAL721 #N66893 #B739 #BOS-#IAD
Time: 2026-07-17 14:27:48 EDT
Min Alt: 2975 ft
Min Dist: 0.4 mi (106deg ESE)
#adsb <a href="/hashtag/planefence" class="hover:underline text-blue-600 dark:text-sky-400 no-card-link">#planefence by kx1t - planefence adsbexchange flightaware faa
Owner: #UNITEDAIRLINES
Flt: #UAL721 #N66893 #B739 #BOS-#IAD
Time: 2026-07-17 14:28:27 EDT
Min Alt: 4600 ft
Min Dist: 0.8 nm (106deg ESE)
#adsb <a href="/hashtag/planefence" class="hover:underline text-blue-600 dark:text-sky-400 no-card-link">#planefence by kx1t - - - kx1t planefence sdr-e airplanes flightaware faa
Owner: #UNITEDAIRLINES
Flt: #UAL721 #N66893 #B739 #BOS-#IAD
Time: 2026-07-17 14:28:27 EDT
Min Alt: 4600 ft
Min Dist: 0.8 nm (106deg ESE)
#adsb <a href="/hashtag/planefence" class="hover:underline text-blue-600 dark:text-sky-400 no-card-link">#planefence by kx1t - - - kx1t planefence sdr-e airplanes flightaware faa
Owner: #UNITEDAIRLINES
Flt: #UAL721 #N36469 #B739 #BOS-#IAD
Time: 2026-07-16 14:24:04 EDT
Min Alt: 3525 ft
Min Dist: 0.4 mi (109deg ESE)
#adsb <a href="/hashtag/planefence" class="hover:underline text-blue-600 dark:text-sky-400 no-card-link">#planefence by kx1t - planefence adsbexchange flightaware faa
Owner: #UNITEDAIRLINES
Flt: #UAL721 #N36469 #B739 #BOS-#IAD
Time: 2026-07-16 14:24:04 EDT
Min Alt: 3525 ft
Min Dist: 0.4 mi (109deg ESE)
#adsb <a href="/hashtag/planefence" class="hover:underline text-blue-600 dark:text-sky-400 no-card-link">#planefence by kx1t - planefence adsbexchange flightaware faa
Owner: #UNITEDAIRLINES
Flt: #UAL721 #N36469 #B739 #BOS-#IAD
Time: 2026-07-16 14:24:35 EDT
Min Alt: 4825 ft
Min Dist: 1.3 nm (93deg E)
#adsb <a href="/hashtag/planefence" class="hover:underline text-blue-600 dark:text-sky-400 no-card-link">#planefence by kx1t - - - kx1t planefence sdr-e airplanes flightaware faa
Owner: #UNITEDAIRLINES
Flt: #UAL721 #N36469 #B739 #BOS-#IAD
Time: 2026-07-16 14:24:35 EDT
Min Alt: 4825 ft
Min Dist: 1.3 nm (93deg E)
#adsb <a href="/hashtag/planefence" class="hover:underline text-blue-600 dark:text-sky-400 no-card-link">#planefence by kx1t - - - kx1t planefence sdr-e airplanes flightaware faa
Owner: #UNITEDAIRLINES
Flt: #UAL721 #N66897 #B739 #BOS-#IAD
Time: 2026-07-15 14:26:05 EDT
Min Alt: 3825 ft
Min Dist: 0.3 mi (102deg ESE)
#adsb <a href="/hashtag/planefence" class="hover:underline text-blue-600 dark:text-sky-400 no-card-link">#planefence by kx1t - planefence adsbexchange flightaware faa
Owner: #UNITEDAIRLINES
Flt: #UAL721 #N66897 #B739 #BOS-#IAD
Time: 2026-07-15 14:26:05 EDT
Min Alt: 3825 ft
Min Dist: 0.3 mi (102deg ESE)
#adsb <a href="/hashtag/planefence" class="hover:underline text-blue-600 dark:text-sky-400 no-card-link">#planefence by kx1t - planefence adsbexchange flightaware faa
Owner: #UNITEDAIRLINES
Flt: #UAL721 #N66897 #B739 #BOS-#IAD
Time: 2026-07-15 14:26:33 EDT
Min Alt: 4975 ft
Min Dist: 1.45 nm (89deg E)
#adsb <a href="/hashtag/planefence" class="hover:underline text-blue-600 dark:text-sky-400 no-card-link">#planefence by kx1t - - - kx1t planefence sdr-e airplanes flightaware faa
Owner: #UNITEDAIRLINES
Flt: #UAL721 #N66897 #B739 #BOS-#IAD
Time: 2026-07-15 14:26:33 EDT
Min Alt: 4975 ft
Min Dist: 1.45 nm (89deg E)
#adsb <a href="/hashtag/planefence" class="hover:underline text-blue-600 dark:text-sky-400 no-card-link">#planefence by kx1t - - - kx1t planefence sdr-e airplanes flightaware faa
Owner: #UNITED AIRLINES
Flt: #UAL721 #N66808 #B739 #BOS-IAD
Time: 2026-01-20 14:48:06 EST
Min Alt: 4850 ft
Min Dist: 1.9 nm (87° E)•airplanes•flightaware•faa
Owner: #UNITED AIRLINES
Flt: #UAL721 #N66808 #B739 #BOS-IAD
Time: 2026-01-20 14:48:06 EST
Min Alt: 4850 ft
Min Dist: 1.9 nm (87° E)•airplanes•flightaware•faa
Flt: #UAL721 #UNITEDAIRLINES #EWR - #MCO
First seen: 2026-01-08 14:31:11 EST
Min Alt: 4800 ft MSL
Min Dist: 1.8 nm
#adsb #planefence by kx1t - airplanes.live - planefence
Flt: #UAL721 #UNITEDAIRLINES #EWR - #MCO
First seen: 2026-01-08 14:31:11 EST
Min Alt: 4800 ft MSL
Min Dist: 1.8 nm
#adsb #planefence by kx1t - airplanes.live - planefence
Flt: #UAL721 #UNITEDAIRLINES #EWR - #MCO
First seen: 2026-01-04 14:34:10 EST
Min Alt: 4500 ft MSL
Min Dist: 1.35 nm
#adsb #planefence by kx1t - airplanes.live - planefence
Flt: #UAL721 #UNITEDAIRLINES #EWR - #MCO
First seen: 2026-01-04 14:34:10 EST
Min Alt: 4500 ft MSL
Min Dist: 1.35 nm
#adsb #planefence by kx1t - airplanes.live - planefence
Flt: #UAL721 #UNITEDAIRLINES #EWR - #MCO
First seen: 2026-01-03 14:51:49 EST
Min Alt: 4625 ft MSL
Min Dist: 1.53 nm
#adsb #planefence by kx1t - airplanes.live - planefence
Flt: #UAL721 #UNITEDAIRLINES #EWR - #MCO
First seen: 2026-01-03 14:51:49 EST
Min Alt: 4625 ft MSL
Min Dist: 1.53 nm
#adsb #planefence by kx1t - airplanes.live - planefence
Flt: #UAL721 #UNITEDAIRLINES #EWR - #MCO
First seen: 2026-01-02 14:28:41 EST
Min Alt: 4775 ft MSL
Min Dist: 1.67 nm
#adsb #planefence by kx1t - airplanes.live - planefence
Flt: #UAL721 #UNITEDAIRLINES #EWR - #MCO
First seen: 2026-01-02 14:28:41 EST
Min Alt: 4775 ft MSL
Min Dist: 1.67 nm
#adsb #planefence by kx1t - airplanes.live - planefence
Flt: #UAL721 #UNITEDAIRLINES #EWR - #MCO
First seen: 2025-12-22 14:42:19 EST
Min Alt: 4025 ft MSL
Min Dist: 0.51 nm
#adsb #planefence by kx1t - airplanes.live - planefence
Flt: #UAL721 #UNITEDAIRLINES #EWR - #MCO
First seen: 2025-12-22 14:42:19 EST
Min Alt: 4025 ft MSL
Min Dist: 0.51 nm
#adsb #planefence by kx1t - airplanes.live - planefence
Flt: #UAL721 #UNITEDAIRLINES #EWR - #MCO
First seen: 2025-12-21 14:26:46 EST
Min Alt: 4650 ft MSL
Min Dist: 1.56 nm
#adsb #planefence by kx1t - airplanes.live - planefence
Flt: #UAL721 #UNITEDAIRLINES #EWR - #MCO
First seen: 2025-12-21 14:26:46 EST
Min Alt: 4650 ft MSL
Min Dist: 1.56 nm
#adsb #planefence by kx1t - airplanes.live - planefence
Flt: #UAL721 #UNITEDAIRLINES #EWR - #MCO
First seen: 2025-12-08 14:39:12 EST
Min Alt: 4475 ft MSL
Min Dist: 1.35 nm
#adsb #planefence by kx1t - airplanes.live - planefence
Flt: #UAL721 #UNITEDAIRLINES #EWR - #MCO
First seen: 2025-12-08 14:39:12 EST
Min Alt: 4475 ft MSL
Min Dist: 1.35 nm
#adsb #planefence by kx1t - airplanes.live - planefence
Flt: #UAL721 #UNITEDAIRLINES #EWR - #MCO
First seen: 2025-12-01 14:37:54 EST
Min Alt: 4075 ft MSL
Min Dist: 0.9 nm
#adsb #planefence by kx1t - airplanes.live - planefence
Flt: #UAL721 #UNITEDAIRLINES #EWR - #MCO
First seen: 2025-12-01 14:37:54 EST
Min Alt: 4075 ft MSL
Min Dist: 0.9 nm
#adsb #planefence by kx1t - airplanes.live - planefence
Flt: #UAL721 #UNITEDAIRLINES #EWR - #MCO
First seen: 2025-11-29 14:51:11 EST
Min Alt: 4750 ft MSL
Min Dist: 1.65 nm
#adsb #planefence by kx1t - airplanes.live - planefence
Flt: #UAL721 #UNITEDAIRLINES #EWR - #MCO
First seen: 2025-11-29 14:51:11 EST
Min Alt: 4750 ft MSL
Min Dist: 1.65 nm
#adsb #planefence by kx1t - airplanes.live - planefence
Flt: #UAL721 #UNITEDAIRLINES #EWR - #MCO
First seen: 2025-11-28 14:26:54 EST
Min Alt: 4550 ft MSL
Min Dist: 1.57 nm
#adsb #planefence by kx1t - airplanes.live - planefence
Flt: #UAL721 #UNITEDAIRLINES #EWR - #MCO
First seen: 2025-11-28 14:26:54 EST
Min Alt: 4550 ft MSL
Min Dist: 1.57 nm
#adsb #planefence by kx1t - airplanes.live - planefence
Flt: #UAL721 #UNITEDAIRLINES #EWR - #MCO
First seen: 2025-11-24 14:32:52 EST
Min Alt: 4200 ft MSL
Min Dist: 0.83 nm
#adsb #planefence by kx1t - airplanes.live - planefence
Flt: #UAL721 #UNITEDAIRLINES #EWR - #MCO
First seen: 2025-11-24 14:32:52 EST
Min Alt: 4200 ft MSL
Min Dist: 0.83 nm
#adsb #planefence by kx1t - airplanes.live - planefence
Flt: #UAL721 #UNITEDAIRLINES #EWR - #MCO
First seen: 2025-11-22 14:41:18 EST
Min Alt: 4525 ft MSL
Min Dist: 1.38 nm
#adsb #planefence by kx1t - airplanes.live - planefence
Flt: #UAL721 #UNITEDAIRLINES #EWR - #MCO
First seen: 2025-11-22 14:41:18 EST
Min Alt: 4525 ft MSL
Min Dist: 1.38 nm
#adsb #planefence by kx1t - airplanes.live - planefence