UAL1139

UMB BANK NA TRUSTEE · EWR LAS

UAL1139 is operated by UMB BANK NA TRUSTEE between Newark Liberty International Airport (KEWR) and McCarran International Airport (KLAS). The flight is most often flown by a BOEING Boeing 737 MAX 8. Typical block time is 3h 51m. SkyMeter has observed 83 legs of this flight number via ADS-B.

FLIGHTS
83
last 90 days
AVG DURATION
3h 51m
tracked time
📅
SERVICE PERIOD
05/27/2025 → 08/22/2026
first → last seen
🗺
ROUTES / TYPES
5 / 6
city pairs · airframes
INCIDENT RATE
2.4%
2 flagged

Routes flown

By count · last 90 days

3
52
avg 5h 6m · Newark Liberty → McCarran
8
avg 1h 50m · Boise Air Terminal/Gowen Field → Denver
1
avg 2h 4m · Des Moines → George Bush Intercontinental Houston

Safety profile

Flagged flights · last 90 days

Go-arounds
0
Unstable approach
2
Rejected TO
0
Stall warnings
0
Overspeeds
0
Runway excursion
0
Counts represent flights with at least one occurrence of each flag, not the total event count. See /incidents for individual events.

Recent flights

Newest 30 operations of UAL1139

30
08/20/2026
2h 2m
No alerts
08/18/2026
1h 45m
No alerts
08/17/2026
1h 47m
No alerts
08/16/2026
1h 58m
No alerts
08/14/2026
1h 43m
No alerts
08/14/2026
1h 56m
No alerts
08/11/2026
2h 3m
No alerts
© SkyMeter · All flight data subject to ODbL attribution · Tracked: 90-day window