N39450

B739BOEING Boeing 737-900

UNITED AIRLINES INC· ICAO24 a494c5· last seen 17h ago

N39450 is a BOEING Boeing 737-900 operated by UNITED AIRLINES INC. SkyMeter has tracked 206 flights totalling 448 hours of airtime via ADS-B across 91 callsigns. The most frequent segment is KSFO to KDEN. Service window in our records spans 46 days. Of those flights, 6 (2.9%) carry at least one detected incident — go-around, unstable approach, stall warning, or runway excursion.

✈
FLIGHTS
206
all time
⏱
FLOWN HOURS
448
tracked time
📍
AIRPORTS VISITED
39
unique
📡
CALLSIGNS
91
95 routes
📅
SERVICE PERIOD
04/18/2026 → 06/03/2026
first → last
⚠
INCIDENT RATE
2.9%
6 flagged

Top routes

By flight count

10
KSFO → KDEN
2
KEWR → KBOS
2
KSFO → KIAH
2
KBOS → KORD
2
KMCO → KEWR
2
KDEN → KORD
1
KORD → KFLL
1
KSFO → KIAD
1
KIAH → KIAD
1
KDEN → KOMA
1

Flight numbers

Most-flown by this airframe

10
UAL2396 2
UAL2635 2
UAL2837 2
UAL1504 2
UAL611 2
UAL414K 2
UAL371 2
UAL486 2
UAL1199 2
UAL651 2

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 N39450

50
UAL3752BOEING Boeing 737-900
→
06/03/2026
41m
No alerts
Replay Analysis
UAL2853BOEING Boeing 737-900
→
06/03/2026
3h 18m
No alerts
Replay Analysis
UAL1634BOEING Boeing 737-900
→
06/03/2026
1h 56m
No alerts
Replay Analysis
UAL320BOEING Boeing 737-900
→
06/03/2026
2h 2m
No alerts
Replay Analysis
UAL1430BOEING Boeing 737-900
→
06/03/2026
1h 47m
No alerts
Replay Analysis
UAL1430BOEING Boeing 737-900
→
06/02/2026
2h 23m
No alerts
Replay Analysis
UAL1430BOEING Boeing 737-900
→
06/02/2026
35m
No alerts
Replay Analysis
UAL1799BOEING Boeing 737-900
→
06/02/2026
1h 18m
No alerts
Replay Analysis
UAL611BOEING Boeing 737-900
→
06/02/2026
7m
No alerts
Replay Analysis
UAL611BOEING Boeing 737-900
→
06/02/2026
1h 30m
No alerts
Replay Analysis
UAL2322BOEING Boeing 737-900
→
06/02/2026
2h 17m
No alerts
Replay Analysis
UAL2760BOEING Boeing 737-900
→
06/02/2026
2h 40m
No alerts
Replay Analysis
UAL684BOEING Boeing 737-900
→
06/02/2026
37m
No alerts
Replay Analysis
UAL684BOEING Boeing 737-900
→
06/01/2026
4h 45m
No alerts
Replay Analysis
UAL684BOEING Boeing 737-900
→
06/01/2026
5h 23m
No alerts
Replay Analysis
UAL1392BOEING Boeing 737-900
→
06/01/2026
2h 15m
No alerts
Replay Analysis
UAL1761BOEING Boeing 737-900
→
06/01/2026
2h 8m
No alerts
Replay Analysis
UAL1813BOEING Boeing 737-900
→
05/31/2026
1h 16m
No alerts
Replay Analysis
UAL1129BOEING Boeing 737-900
→
05/31/2026
55m
No alerts
Replay Analysis
UAL1875BOEING Boeing 737-900
→
05/31/2026
2h 11m
No alerts
Replay Analysis
UAL2396BOEING Boeing 737-900
→
05/31/2026
1h 17m
No alerts
Replay Analysis
UAL2837BOEING Boeing 737-900
→
05/31/2026
4h 55m
△ Unstable
Replay Analysis
UAL2837BOEING Boeing 737-900
→
05/31/2026
1h 47m
No alerts
Replay Analysis
UAL2013BOEING Boeing 737-900
→
05/31/2026
40m
No alerts
Replay Analysis
UAL2418BOEING Boeing 737-900
→
05/29/2026
2h 15m
No alerts
Replay Analysis
UAL1535BOEING Boeing 737-900
→
05/29/2026
2h 4m
No alerts
Replay Analysis
UAL1549BOEING Boeing 737-900
→
05/29/2026
2h 40m
No alerts
Replay Analysis
UAL1680BOEING Boeing 737-900
→
05/29/2026
2h 48m
No alerts
Replay Analysis
UAL1743BOEING Boeing 737-900
→
05/29/2026
57m
No alerts
Replay Analysis
UAL1743BOEING Boeing 737-900
→
05/28/2026
2h 5m
No alerts
Replay Analysis
UAL1743BOEING Boeing 737-900
→
05/28/2026
3h 3m
No alerts
Replay Analysis
UAL2110BOEING Boeing 737-900
→
05/28/2026
3h 31m
No alerts
Replay Analysis
UAL1897BOEING Boeing 737-900
→
05/28/2026
1h 56m
No alerts
Replay Analysis
UAL1151BOEING Boeing 737-900
→
05/28/2026
6m
No alerts
Replay Analysis
UAL285BOEING Boeing 737-900
→
05/26/2026
1h 14m
No alerts
Replay Analysis
UAL702BOEING Boeing 737-900
→
05/26/2026
5h 15m
No alerts
Replay Analysis
UAL1273BOEING Boeing 737-900
→
05/26/2026
3h 27m
No alerts
Replay Analysis
UAL414KBOEING Boeing 737-900
→
05/26/2026
8m
No alerts
Replay Analysis
UAL414KBOEING Boeing 737-900
→
05/26/2026
1h 50m
No alerts
Replay Analysis
UAL1195BOEING Boeing 737-900
→
05/25/2026
1h 13m
No alerts
Replay Analysis
UAL361BOEING Boeing 737-900
→
05/25/2026
1h 1m
No alerts
Replay Analysis
UAL337BOEING Boeing 737-900
→
05/25/2026
1h 38m
No alerts
Replay Analysis
UAL1729BOEING Boeing 737-900
→
05/25/2026
1h 27m
No alerts
Replay Analysis
UAL1773BOEING Boeing 737-900
→
05/25/2026
14m
No alerts
Replay Analysis
UAL1773BOEING Boeing 737-900
→
05/24/2026
3h 37m
No alerts
Replay Analysis
UAL1010BOEING Boeing 737-900
→
05/24/2026
3h 3m
No alerts
Replay Analysis
UAL1362BOEING Boeing 737-900
→
05/24/2026
1h 27m
No alerts
Replay Analysis
UAL1347BOEING Boeing 737-900
→
05/24/2026
1h 27m
No alerts
Replay Analysis
UAL287BOEING Boeing 737-900
→
05/23/2026
4h 31m
No alerts
Replay Analysis
UAL2804BOEING Boeing 737-900
→
05/23/2026
1h 47m
No alerts
Replay Analysis
© SkyMeter · All flight data subject to ODbL attribution