UNITED AIRLINES INC· ICAO24 a76028· last seen 11h ago

N57439 is a BOEING Boeing 737-900 operated by UNITED AIRLINES INC. SkyMeter has tracked 164 flights totalling 362 hours of airtime via ADS-B across 80 callsigns. The most frequent segment is KLAX to KIAH. Service window in our records spans 47 days. Of those flights, 8 (4.9%) carry at least one detected incident — go-around, unstable approach, stall warning, or runway excursion.

FLIGHTS
164
all time
FLOWN HOURS
362
tracked time
📍
AIRPORTS VISITED
32
unique
📡
CALLSIGNS
80
76 routes
📅
SERVICE PERIOD
04/17/2026 → 06/03/2026
first → last
INCIDENT RATE
4.9%
8 flagged

Top routes

By flight count

10
2
2
2
2
2
2
1
1
1
1

Aircraft specifications

BOEING Boeing 737-900

Engines
Twin Jet
Vref (approach)
149 kt
MTOW
187,700 lb
Wingspan
117 ft
Length
138 ft
Wake category
Medium

Recent flights

Newest 50 operations of N57439

50
06/01/2026
3h 7m
△ Unstable
05/28/2026
3h 13m
No alerts
05/24/2026
2h 54m
↻ Go-around
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