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N644UA© David LYU

N644UA

Boeing 767-300

A875DA · B763

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Sightings

40

First seen

14 Apr 2026

Last seen

10 Jul 2026

Operator

UA
United Airlines
United AirlinesUAL

Callsigns observed

UAL20UAL21UAL243UAL321UAL322UAL3937UAL53UAL749UAL946UAL947

Sighting Timeline

DateCallsignAltitudeSpeed
10 Jul 2026, 11:32UAL322FL321486 kt
10 Jul 2026, 05:53UAL321FL390475 kt
9 Jul 2026, 10:21—FL320462 kt
5 Jul 2026, 09:46UAL322FL340411 kt
2 Jul 2026, 14:49—FL340—
30 Jun 2026, 13:10UAL3937FL340439 kt
27 Jun 2026, 09:30
—
FL320
—
22 Jun 2026, 11:34UAL53FL320436 kt
22 Jun 2026, 04:51—FL370468 kt
17 Jun 2026, 09:54UAL21FL300411 kt
17 Jun 2026, 04:43UAL946FL296508 kt
16 Jun 2026, 09:29—FL330418 kt
15 Jun 2026, 06:29UAL20FL289518 kt
11 Jun 2026, 05:05UAL946FL330559 kt
10 Jun 2026, 09:38UAL243FL320426 kt
9 Jun 2026, 06:22UAL20FL340524 kt
4 Jun 2026, 10:11UAL21FL320441 kt
4 Jun 2026, 05:04UAL946FL324515 kt
3 Jun 2026, 11:55UAL947FL302447 kt
3 Jun 2026, 08:51UAL20FL285498 kt
31 May 2026, 04:52UAL946FL297517 kt
30 May 2026, 09:37—FL320453 kt
22 May 2026, 09:40—FL360—
21 May 2026, 09:45UAL947FL320429 kt
21 May 2026, 06:13UAL946FL337518 kt
15 May 2026, 15:39—FL360—
15 May 2026, 09:33———
14 May 2026, 10:20UAL749FL320446 kt
6 May 2026, 11:10UAL947FL340440 kt
6 May 2026, 04:58UAL946FL303425 kt
3 May 2026, 16:00—FL320454 kt
3 May 2026, 09:38—FL832—
30 Apr 2026, 09:45UAL947FL340473 kt
30 Apr 2026, 06:29UAL20FL315419 kt
25 Apr 2026, 09:26UAL946FL322435 kt
21 Apr 2026, 09:52—FL340442 kt
21 Apr 2026, 06:35UAL20FL350448 kt
17 Apr 2026, 04:57UAL946FL316465 kt
14 Apr 2026, 09:55UAL947FL320402 kt
14 Apr 2026, 06:28UAL20FL337513 kt