UNITED AIRLINES INC· ICAO24 aacd50· last seen 14h ago

N79521 is a BOEING Boeing 737-800 operated by UNITED AIRLINES INC. SkyMeter has tracked 180 flights totalling 379 hours of airtime via ADS-B across 74 callsigns. The most frequent segment is KDEN to KSTL. Service window in our records spans 47 days. Of those flights, 14 (7.8%) carry at least one detected incident — go-around, unstable approach, stall warning, or runway excursion.

FLIGHTS
180
all time
FLOWN HOURS
379
tracked time
📍
AIRPORTS VISITED
35
unique
📡
CALLSIGNS
74
68 routes
📅
SERVICE PERIOD
04/17/2026 → 06/03/2026
first → last
INCIDENT RATE
7.8%
14 flagged

Top routes

By flight count

10
2
2
2
2
2
2
2
2
2
2

Aircraft specifications

BOEING Boeing 737-800

Engines
Twin Jet
Vref (approach)
144 kt
MTOW
174,200 lb
Wingspan
117 ft
Length
130 ft
Wake category
Medium

Recent flights

Newest 50 operations of N79521

50
06/01/2026
2h 11m
△ Unstable
06/01/2026
1h 20m
△ Unstable
05/31/2026
1h 31m
△ Unstable
05/28/2026
2h 9m
△ Unstable
© SkyMeter · All flight data subject to ODbL attribution