N37281
Built 2003 · registered US
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This aircraft
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Performance specs
- Range
- 3,600 nm
- Cruise speed
- 460 kt
- Max speed
- 525 kt
- Service ceiling
- 41,000 ft
- Takeoff distance
- 2500 m
- Landing distance
- 1600 m
- MTOW
- 82,100 kg
- Empty weight
- —
- Fuel capacity
- 26,000 L
- Length
- 39.5 m
- Wingspan
- 35.9 m
- Height
- 12.6 m
- Seats
- 162
- Max passengers
- 189
Flight activity
(637 tracking legs recorded)- Last 30 days
- 122
- Last 90 days
- 384
- Last seen
- 14 Nov 2026
- Tracked since
- 27 May 2026
Frequent routes: KDEN → KDEN (10) · KORD → KORD (6) · KMSP → KORD (5)
- KDEN → KPHX14 Nov 2026 · 1h 31m
- KAUS → KDEN13 Nov 2026 · 1h 38m
- … → KAUS13 Nov 2026 · 1h 40m
- … → KDEN13 Nov 2026 · 2h 08m
- KDEN → KSJC12 Nov 2026 · 2h 15m
- … → KDEN12 Nov 2026 · 2h 17m
- Tracked flight11 Nov 2026 · 2h 43m
- … → KDEN11 Nov 2026 · 2h 41m
- … → KDEN11 Nov 2026 · 16h 10m
- … → KDEN10 Nov 2026 · 2h 59m
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. One of the most common aircraft types we track.
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Registration history
(1)- N37281USACTIVEUNITED AIRLINES INC2003 – 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 N37281?
N37281 is a Boeing 737, built in 2003. Sprinkle's record for N37281 covers its lineage, ownership history and specifications.
Is N37281 currently active?
Registry records list N37281's status as Active, registered in United States — a Boeing 737.
What is the manufacturer serial number (MSN) of N37281?
N37281 carries manufacturer serial number (MSN) 31599, the serial assigned to this Boeing 737 airframe when it was built.
What is the ICAO24 / Mode S code for N37281?
N37281's ICAO24 (Mode S) transponder code is A43EC3 — the hex address the Mode S transponder on this Boeing 737 broadcasts.