N57439

B739BOEING Boeing 737-900

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
KLAX → KIAH
2
KIAD → KDEN
2
KIAD → KORF
2
KIAH → KLAX
2
KSAN → KIAH
2
KORF → KIAD
2
KIAD → KSAN
1
KMSY → KIAD
1
CYVR → KSFO
1
KORD → KATL
1

Flight numbers

Most-flown by this airframe

10
UAL1046 2
UAL2677 2
UAL545 1
UAL3916 1
UAL1673 1
UAL1150 1
UAL1580 1
UAL2165 1
UAL2121 1
UAL2366 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
UAL1673BOEING Boeing 737-900
→
06/03/2026
9m
No alerts
Replay Analysis
UAL1502BOEING Boeing 737-900
→
06/03/2026
52m
No alerts
Replay Analysis
UAL493BOEING Boeing 737-900
→
06/03/2026
1h 0m
No alerts
Replay Analysis
UAL2849BOEING Boeing 737-900
→
06/03/2026
47m
△ Unstable
Replay Analysis
UAL2465BOEING Boeing 737-900
→
06/03/2026
1h 27m
No alerts
Replay Analysis
UAL2063BOEING Boeing 737-900
→
06/03/2026
1h 11m
No alerts
Replay Analysis
UAL2106BOEING Boeing 737-900
→
06/02/2026
2h 56m
No alerts
Replay Analysis
UAL1620BOEING Boeing 737-900
→
06/02/2026
2h 42m
No alerts
Replay Analysis
UAL2072BOEING Boeing 737-900
→
06/01/2026
1h 17m
No alerts
Replay Analysis
UAL1955BOEING Boeing 737-900
→
06/01/2026
3h 7m
△ Unstable
Replay Analysis
UAL1746BOEING Boeing 737-900
→
06/01/2026
49m
No alerts
Replay Analysis
UAL1150BOEING Boeing 737-900
→
06/01/2026
1h 22m
No alerts
Replay Analysis
UAL1046BOEING Boeing 737-900
→
06/01/2026
1h 17m
No alerts
Replay Analysis
UAL1046BOEING Boeing 737-900
→
05/31/2026
42m
No alerts
Replay Analysis
UAL1046BOEING Boeing 737-900
→
05/31/2026
5m
No alerts
Replay Analysis
UAL1046BOEING Boeing 737-900
→
05/31/2026
2h 9m
No alerts
Replay Analysis
UAL356BOEING Boeing 737-900
→
05/31/2026
1h 31m
No alerts
Replay Analysis
UAL1215BOEING Boeing 737-900
→
05/31/2026
2h 19m
No alerts
Replay Analysis
UAL2622BOEING Boeing 737-900
→
05/31/2026
2h 4m
No alerts
Replay Analysis
UAL1182BOEING Boeing 737-900
→
05/31/2026
1h 24m
No alerts
Replay Analysis
UAL2165BOEING Boeing 737-900
→
05/29/2026
1h 33m
No alerts
Replay Analysis
UAL2162BOEING Boeing 737-900
→
05/29/2026
2h 19m
No alerts
Replay Analysis
UAL3916BOEING Boeing 737-900
→
05/29/2026
2h 13m
No alerts
Replay Analysis
UAL249BOEING Boeing 737-900
→
05/29/2026
4h 10m
No alerts
Replay Analysis
UAL1580BOEING Boeing 737-900
→
05/29/2026
3h 59m
No alerts
Replay Analysis
UAL2821BOEING Boeing 737-900
→
05/28/2026
2h 4m
No alerts
Replay Analysis
UAL2807BOEING Boeing 737-900
→
05/28/2026
1h 39m
No alerts
Replay Analysis
UAL1834BOEING Boeing 737-900
→
05/28/2026
2h 13m
No alerts
Replay Analysis
UAL521BOEING Boeing 737-900
→
05/28/2026
3h 13m
No alerts
Replay Analysis
UAL2690BOEING Boeing 737-900
→
05/27/2026
3h 37m
No alerts
Replay Analysis
UAL2378BOEING Boeing 737-900
→
05/27/2026
2h 30m
No alerts
Replay Analysis
UAL1140BOEING Boeing 737-900
→
05/27/2026
18m
No alerts
Replay Analysis
UAL1140BOEING Boeing 737-900
→
05/26/2026
2h 10m
No alerts
Replay Analysis
UAL1140BOEING Boeing 737-900
→
05/26/2026
2h 28m
No alerts
Replay Analysis
UAL2607BOEING Boeing 737-900
→
05/26/2026
51m
No alerts
Replay Analysis
UAL2066BOEING Boeing 737-900
→
05/26/2026
1h 0m
No alerts
Replay Analysis
UAL1549BOEING Boeing 737-900
→
05/26/2026
2h 37m
No alerts
Replay Analysis
UAL2403BOEING Boeing 737-900
→
05/26/2026
3h 0m
No alerts
Replay Analysis
UAL1945BOEING Boeing 737-900
→
05/25/2026
3h 9m
No alerts
Replay Analysis
UAL1416BOEING Boeing 737-900
→
05/25/2026
2h 57m
No alerts
Replay Analysis
UAL483BOEING Boeing 737-900
→
05/25/2026
3h 4m
No alerts
Replay Analysis
UAL1591BOEING Boeing 737-900
→
05/24/2026
3h 8m
No alerts
Replay Analysis
UAL457BOEING Boeing 737-900
→
05/24/2026
1h 37m
No alerts
Replay Analysis
UAL2322BOEING Boeing 737-900
→
05/24/2026
2h 2m
No alerts
Replay Analysis
UAL2760BOEING Boeing 737-900
→
05/24/2026
2h 54m
↻ Go-around
Replay Analysis
UAL2240BOEING Boeing 737-900
→
05/24/2026
1h 55m
No alerts
Replay Analysis
UAL2240BOEING Boeing 737-900
→
05/23/2026
31m
No alerts
Replay Analysis
UAL2240BOEING Boeing 737-900
→
05/23/2026
2h 27m
No alerts
Replay Analysis
UAL1662BOEING Boeing 737-900
→
05/23/2026
1h 10m
No alerts
Replay Analysis
UAL1963BOEING Boeing 737-900
→
05/23/2026
1h 31m
No alerts
Replay Analysis
© SkyMeter · All flight data subject to ODbL attribution