UAL12 is operated by UNITED AIRLINES INC between Zürich Airport (LSZH) and Chicago O'Hare International Airport (KORD). The flight is most often flown by a BOEING Boeing 767-300. Typical block time is 7h 49m. SkyMeter has observed 108 legs of this flight number via ADS-B.

✈
FLIGHTS
108
last 90 days
⏱
AVG DURATION
7h 49m
tracked time
📅
SERVICE PERIOD
5/27/2025 → 8/11/2026
first → last seen
🗺
ROUTES / TYPES
9 / 1
city pairs · airframes
⚠
INCIDENT RATE
1.9%
2 flagged

Routes flown

By count · last 90 days

6
LSZH → KORD
83
avg 9h 28m · Zürich → Chicago O'Hare
LSZH → KEWR
1
avg 8h 17m · Zürich → Newark Liberty
LSZH → KRFD
1
avg 9h 55m · Zürich → Chicago Rockford
LSZH → KIAD
1
avg 10h 23m · Zürich → Washington Dulles
KRFD → KORD
1
avg 40m · Chicago Rockford → Chicago O'Hare
KIAD → KORD
1
avg 2h 35m · Washington Dulles → Chicago O'Hare

Aircraft types

Equipment used on this number

1
B763 BOEING Boeing 767-300
108

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 UAL12

30
N686UABOEING Boeing 767-300
→
8/11/2026
9h 38m
No alerts
Replay Analysis
N657UABOEING Boeing 767-300
→
8/10/2026
9h 48m
No alerts
Replay Analysis
N657UABOEING Boeing 767-300
→
8/9/2026
9h 39m
No alerts
Replay Analysis
N666UABOEING Boeing 767-300
→
8/8/2026
9h 29m
No alerts
Replay Analysis
N666UABOEING Boeing 767-300
→
8/7/2026
9h 23m
No alerts
Replay Analysis
N663UABOEING Boeing 767-300
→
8/6/2026
16m
No alerts
Replay Analysis
N663UABOEING Boeing 767-300
→
8/6/2026
9h 43m
No alerts
Replay Analysis
N666UABOEING Boeing 767-300
→
8/5/2026
9h 31m
No alerts
Replay Analysis
N666UABOEING Boeing 767-300
→
8/4/2026
9h 21m
No alerts
Replay Analysis
N669UABOEING Boeing 767-300
→
8/3/2026
9h 46m
No alerts
Replay Analysis
N668UABOEING Boeing 767-300
→
8/2/2026
9h 33m
No alerts
Replay Analysis
N652UABOEING Boeing 767-300
→
7/31/2026
9h 44m
No alerts
Replay Analysis
N653UABOEING Boeing 767-300
→
7/30/2026
9h 23m
No alerts
Replay Analysis
N662UABOEING Boeing 767-300
→
7/29/2026
6m
No alerts
Replay Analysis
N662UABOEING Boeing 767-300
→
7/29/2026
9h 20m
No alerts
Replay Analysis
N662UABOEING Boeing 767-300
→
7/29/2026
7m
No alerts
Replay Analysis
N652UABOEING Boeing 767-300
→
7/28/2026
9h 28m
No alerts
Replay Analysis
N673UABOEING Boeing 767-300
→
7/27/2026
40m
No alerts
Replay Analysis
N673UABOEING Boeing 767-300
→
7/27/2026
9h 55m
No alerts
Replay Analysis
N674UABOEING Boeing 767-300
→
7/26/2026
9h 36m
No alerts
Replay Analysis
N665UABOEING Boeing 767-300
→
7/25/2026
9h 19m
No alerts
Replay Analysis
N662UABOEING Boeing 767-300
→
7/24/2026
9h 49m
No alerts
Replay Analysis
N667UABOEING Boeing 767-300
→
7/23/2026
9h 16m
No alerts
Replay Analysis
N677UABOEING Boeing 767-300
→
7/22/2026
8h 17m
No alerts
Replay Analysis
N658UABOEING Boeing 767-300
→
7/21/2026
9h 19m
No alerts
Replay Analysis
N658UABOEING Boeing 767-300
→
7/21/2026
8m
No alerts
Replay Analysis
N677UABOEING Boeing 767-300
→
7/20/2026
9h 24m
No alerts
Replay Analysis
N663UABOEING Boeing 767-300
→
7/19/2026
9h 13m
No alerts
Replay Analysis
N653UABOEING Boeing 767-300
→
7/18/2026
9h 14m
No alerts
Replay Analysis
N658UABOEING Boeing 767-300
→
7/17/2026
9h 19m
No alerts
Replay Analysis
© SkyMeter · All flight data subject to ODbL attribution · Tracked: 90-day window