UAL921 is operated by UNITED AIRLINES INC between London Heathrow Airport (EGLL) and Newark Liberty International Airport (KEWR). The flight is most often flown by a BOEING Boeing 767-300. Typical block time is 6h 12m. SkyMeter has observed 101 legs of this flight number via ADS-B.

✈
FLIGHTS
101
last 90 days
⏱
AVG DURATION
6h 12m
tracked time
📅
SERVICE PERIOD
5/27/2025 → 8/11/2026
first → last seen
🗺
ROUTES / TYPES
10 / 2
city pairs · airframes
⚠
INCIDENT RATE
0.0%
0 flagged

Routes flown

By count · last 90 days

8
EGLL → KEWR
62
avg 7h 48m · London Heathrow → Newark Liberty
KORD → KEWR
1
avg 1h 33m · Chicago O'Hare → Newark Liberty
EGLL → KORD
1
avg 9h 4m · London Heathrow → Chicago O'Hare
KBGR → KEWR
1
avg 1h 51m · Bangor → Newark Liberty
EGLL → KBGR
1
avg 6h 47m · London Heathrow → Bangor
4NJ2 → KEWR
1
avg 8m · Passaic River Seaplane Base → Newark Liberty
EGLL → EGTR
1
avg 1h 33m · London Heathrow → Elstree Airfield
EGLL → EGLM
1
avg 1h 32m · London Heathrow → White Waltham Airfield

Aircraft types

Equipment used on this number

2
B763 BOEING Boeing 767-300
224
B764 BOEING Boeing 767-400
7

Safety profile

Flagged flights · last 90 days

Go-arounds
0
Unstable approach
0
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 UAL921

30
N667UABOEING Boeing 767-300
→
8/11/2026
1h 32m
No alerts
Replay Analysis
N667UABOEING Boeing 767-300
→
8/11/2026
41m
No alerts
Replay Analysis
N667UABOEING Boeing 767-300
→
8/10/2026
7h 4m
No alerts
Replay Analysis
N667UABOEING Boeing 767-300
→
8/10/2026
7h 45m
No alerts
Replay Analysis
N671UABOEING Boeing 767-300
→
8/10/2026
1h 48m
No alerts
Replay Analysis
N671UABOEING Boeing 767-300
→
8/9/2026
5h 0m
No alerts
Replay Analysis
N671UABOEING Boeing 767-300
→
8/9/2026
7h 27m
No alerts
Replay Analysis
N675UABOEING Boeing 767-300
→
8/9/2026
1h 20m
No alerts
Replay Analysis
N675UABOEING Boeing 767-300
→
8/8/2026
6h 25m
No alerts
Replay Analysis
N675UABOEING Boeing 767-300
→
8/8/2026
1h 3m
No alerts
Replay Analysis
N675UABOEING Boeing 767-300
→
8/7/2026
6h 51m
No alerts
Replay Analysis
N675UABOEING Boeing 767-300
→
8/7/2026
7h 55m
No alerts
Replay Analysis
N673UABOEING Boeing 767-300
→
8/7/2026
1h 48m
No alerts
Replay Analysis
N673UABOEING Boeing 767-300
→
8/6/2026
7h 44m
No alerts
Replay Analysis
N673UABOEING Boeing 767-300
→
8/6/2026
5h 55m
No alerts
Replay Analysis
N662UABOEING Boeing 767-300
→
8/6/2026
52m
No alerts
Replay Analysis
N662UABOEING Boeing 767-300
→
8/5/2026
7h 48m
No alerts
Replay Analysis
N662UABOEING Boeing 767-300
→
8/5/2026
6h 55m
No alerts
Replay Analysis
N69059BOEING Boeing 767-400
→
8/5/2026
20m
No alerts
Replay Analysis
N69059BOEING Boeing 767-400
→
8/4/2026
7h 14m
No alerts
Replay Analysis
N69059BOEING Boeing 767-400
→
8/4/2026
6h 53m
No alerts
Replay Analysis
N684UABOEING Boeing 767-300
→
8/4/2026
1h 5m
No alerts
Replay Analysis
N684UABOEING Boeing 767-300
→
8/3/2026
8h 5m
No alerts
Replay Analysis
N684UABOEING Boeing 767-300
→
8/3/2026
6h 59m
No alerts
Replay Analysis
N667UABOEING Boeing 767-300
→
8/3/2026
1h 59m
No alerts
Replay Analysis
N667UABOEING Boeing 767-300
→
8/2/2026
7h 26m
No alerts
Replay Analysis
N667UABOEING Boeing 767-300
→
8/2/2026
1h 38m
No alerts
Replay Analysis
N662UABOEING Boeing 767-300
→
8/1/2026
54m
No alerts
Replay Analysis
N662UABOEING Boeing 767-300
→
7/31/2026
7h 2m
No alerts
Replay Analysis
N665UABOEING Boeing 767-300
→
7/31/2026
1h 40m
No alerts
Replay Analysis
© SkyMeter · All flight data subject to ODbL attribution · Tracked: 90-day window