N644UA
Built 1991 · registered US
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This aircraft
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Performance specs
- MTOW
- 186,880 kg
- Empty weight
- —
- Fuel capacity
- —
- Seats
- 351
- Max passengers
- 271
Flight activity
(189 tracking legs recorded)- Last 30 days
- 67
- Last 90 days
- 111
- Last seen
- 12 Nov 2026
- Tracked since
- 26 May 2026
Frequent routes: KIAD → KIAD (19)
- KIAD → KIAD9 Nov 2026 · 0h 11m
- … → KIAD8 Nov 2026 · 7h 46m
- Tracked flight8 Nov 2026 · 6h 51m
- … → KIAD7 Nov 2026 · 7h 56m
- KIAD → …7 Nov 2026 · 6h 45m
- … → KIAD6 Nov 2026 · 8h 09m
- Tracked flight6 Nov 2026 · 7h 09m
- … → KIAD5 Nov 2026 · 8h 03m
- KIAD → …5 Nov 2026 · 9h 36m
- … → KIAD4 Nov 2026 · 8h 17m
Showing the 10 most recent distinct flights. The total counts every raw ADS-B tracking leg, including repeat observations and sub-5-minute artifacts.
From ADS-B observations collected since May 2026. Coverage depends on ground-receiver density; gaps do not mean the aircraft did not fly.
Common. More common than 94% of the aircraft models we track.
Other 767-300 airframes by tail number — same model as N644UA.
- N568LA2012
- VH-EXZ2012
- N570LA2012
- N572LA2012
- N564LA2012
- N566LA2011
- N283CM2010
- N298CM2010
- N396UP2010
- N290CM2010
- N397UP2010
- VH-XQU2009
- VH-FKX2009
- N542LA2008
- PR-ACO2007
- N540LA2006
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Registration history
(1)- N644UAUSACTIVEUNITED AIRLINES INC2015 – present
Owner names are published by the issuing civil registry (FAA / CCARCS / CASA / ANAC / NZ CAA). Owner addresses present in the source are not republished here. Registered owner? Request removal
Operator history
(1)- United AirlinesOperator2026 – present
What aircraft model is N644UA?
N644UA is a Boeing 767-300, built in 1991. Sprinkle's record for N644UA covers its lineage, ownership history and specifications.
Is N644UA currently active?
Registry records list N644UA's status as Active, registered in United States — a Boeing 767-300.
What is the manufacturer serial number (MSN) of N644UA?
N644UA carries manufacturer serial number (MSN) 25094, the serial assigned to this Boeing 767-300 airframe when it was built.
What is the ICAO24 / Mode S code for N644UA?
N644UA's ICAO24 (Mode S) transponder code is A875DA — the hex address the Mode S transponder on this Boeing 767-300 broadcasts.