UAL143 is operated by UNITED AIRLINES INC between Denver International Airport (KDEN) and Narita International Airport (RJAA). The flight is most often flown by a BOEING Boeing 787-9 Dreamliner. Typical block time is 3h 49m. SkyMeter has observed 67 legs of this flight number via ADS-B.

✈
FLIGHTS
67
last 90 days
⏱
AVG DURATION
3h 49m
tracked time
📅
SERVICE PERIOD
04/17/2026 → 06/03/2026
first → last seen
🗺
ROUTES / TYPES
4 / 3
city pairs · airframes
⚠
INCIDENT RATE
1.5%
1 flagged

Routes flown

By count · last 90 days

1
KDEN → RJAA
8
avg 11h 44m · Denver → Narita

Aircraft types

Equipment used on this number

3
B789 BOEING Boeing 787-9 Dreamliner
76
B38M BOEING Boeing 737 MAX 8
6
B738 BOEING Boeing 737-800
2

Safety profile

Flagged flights · last 90 days

Go-arounds
0
Unstable approach
0
Rejected TO
0
Stall warnings
0
Overspeeds
1
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 UAL143

30
N22995BOEING Boeing 787-9 Dreamliner
→
06/03/2026
5h 49m
No alerts
Replay Analysis
N22992BOEING Boeing 787-9 Dreamliner
→
06/03/2026
41m
No alerts
Replay Analysis
N22992BOEING Boeing 787-9 Dreamliner
→
06/03/2026
2h 9m
No alerts
Replay Analysis
N22992BOEING Boeing 787-9 Dreamliner
→
06/02/2026
4h 32m
No alerts
Replay Analysis
N22992BOEING Boeing 787-9 Dreamliner
→
06/02/2026
2h 22m
No alerts
Replay Analysis
N23994BOEING Boeing 787-9 Dreamliner
→
06/02/2026
8h 46m
No alerts
Replay Analysis
N23994BOEING Boeing 787-9 Dreamliner
→
06/01/2026
2h 10m
No alerts
Replay Analysis
N23994BOEING Boeing 787-9 Dreamliner
→
06/01/2026
11h 47m
No alerts
Replay Analysis
N23994BOEING Boeing 787-9 Dreamliner
→
06/01/2026
50m
No alerts
Replay Analysis
N24993BOEING Boeing 787-9 Dreamliner
→
06/01/2026
40m
No alerts
Replay Analysis
N24993BOEING Boeing 787-9 Dreamliner
→
05/31/2026
5h 51m
No alerts
Replay Analysis
N45956BOEING Boeing 787-9 Dreamliner
→
05/31/2026
1h 1m
No alerts
Replay Analysis
N29989BOEING Boeing 787-9 Dreamliner
→
05/29/2026
5h 25m
No alerts
Replay Analysis
N38950BOEING Boeing 787-9 Dreamliner
→
05/29/2026
42m
No alerts
Replay Analysis
N38950BOEING Boeing 787-9 Dreamliner
→
05/28/2026
4h 33m
No alerts
Replay Analysis
N24979BOEING Boeing 787-9 Dreamliner
→
05/28/2026
5h 20m
No alerts
Replay Analysis
N17306BOEING Boeing 737 MAX 8
→
05/27/2026
42m
No alerts
Replay Analysis
N24990BOEING Boeing 787-9 Dreamliner
→
05/27/2026
42m
No alerts
Replay Analysis
N24990BOEING Boeing 787-9 Dreamliner
→
05/26/2026
6h 16m
No alerts
Replay Analysis
N45956BOEING Boeing 787-9 Dreamliner
→
05/26/2026
45m
No alerts
Replay Analysis
N45956BOEING Boeing 787-9 Dreamliner
→
05/25/2026
5h 23m
No alerts
Replay Analysis
N45956BOEING Boeing 787-9 Dreamliner
→
05/25/2026
44m
No alerts
Replay Analysis
N27997BOEING Boeing 787-9 Dreamliner
→
05/25/2026
41m
No alerts
Replay Analysis
N27997BOEING Boeing 787-9 Dreamliner
→
05/24/2026
2h 40m
No alerts
Replay Analysis
N24993BOEING Boeing 787-9 Dreamliner
→
05/24/2026
42m
» Overspeed
Replay Analysis
N24993BOEING Boeing 787-9 Dreamliner
→
05/23/2026
5h 26m
No alerts
Replay Analysis
N17306BOEING Boeing 737 MAX 8
→
05/23/2026
36m
No alerts
Replay Analysis
N24979BOEING Boeing 787-9 Dreamliner
→
05/23/2026
40m
No alerts
Replay Analysis
N24979BOEING Boeing 787-9 Dreamliner
→
05/22/2026
13m
No alerts
Replay Analysis
N27957BOEING Boeing 787-9 Dreamliner
→
05/22/2026
7h 51m
No alerts
Replay Analysis
© SkyMeter · All flight data subject to ODbL attribution · Tracked: 90-day window