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 57m. SkyMeter has observed 173 legs of this flight number via ADS-B.

✈
FLIGHTS
173
last 90 days
⏱
AVG DURATION
3h 57m
tracked time
📅
SERVICE PERIOD
05/27/2025 → 07/19/2026
first → last seen
🗺
ROUTES / TYPES
5 / 4
city pairs · airframes
⚠
INCIDENT RATE
0.0%
0 flagged

Routes flown

By count · last 90 days

2
KDEN → RJAA
27
avg 11h 40m · Denver → Narita
KDEN → CO12
1
avg 3h 48m · Denver → Brighton Van-Aire Estates

Aircraft types

Equipment used on this number

4
B789 BOEING Boeing 787-9 Dreamliner
195
B38M BOEING Boeing 737 MAX 8
18
B738 BOEING Boeing 737-800
5
G280 GULFSTREAM AEROSPACE Gulfstream G280
3

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 UAL143

30
N26970BOEING Boeing 787-9 Dreamliner
→
07/19/2026
2h 56m
No alerts
Replay Analysis
N24993BOEING Boeing 787-9 Dreamliner
→
07/19/2026
45m
No alerts
Replay Analysis
N24993BOEING Boeing 787-9 Dreamliner
→
07/18/2026
2h 57m
No alerts
Replay Analysis
N17322BOEING Boeing 737 MAX 8
→
07/18/2026
34m
No alerts
Replay Analysis
N24974BOEING Boeing 787-9 Dreamliner
→
07/18/2026
34m
No alerts
Replay Analysis
N24974BOEING Boeing 787-9 Dreamliner
→
07/17/2026
5h 41m
No alerts
Replay Analysis
N29985BOEING Boeing 787-9 Dreamliner
→
07/17/2026
43m
No alerts
Replay Analysis
N29985BOEING Boeing 787-9 Dreamliner
→
07/16/2026
2h 50m
No alerts
Replay Analysis
N24973BOEING Boeing 787-9 Dreamliner
→
07/16/2026
43m
No alerts
Replay Analysis
N24973BOEING Boeing 787-9 Dreamliner
→
07/15/2026
2h 46m
No alerts
Replay Analysis
N17322BOEING Boeing 737 MAX 8
→
07/15/2026
35m
No alerts
Replay Analysis
N29991BOEING Boeing 787-9 Dreamliner
→
07/15/2026
40m
No alerts
Replay Analysis
N29991BOEING Boeing 787-9 Dreamliner
→
07/14/2026
2h 46m
No alerts
Replay Analysis
N24993BOEING Boeing 787-9 Dreamliner
→
07/14/2026
40m
No alerts
Replay Analysis
N24993BOEING Boeing 787-9 Dreamliner
→
07/13/2026
2h 49m
No alerts
Replay Analysis
N35953BOEING Boeing 787-9 Dreamliner
→
07/13/2026
44m
No alerts
Replay Analysis
N35953BOEING Boeing 787-9 Dreamliner
→
07/12/2026
6h 28m
No alerts
Replay Analysis
N24988BOEING Boeing 787-9 Dreamliner
→
07/12/2026
6h 40m
No alerts
Replay Analysis
N24988BOEING Boeing 787-9 Dreamliner
→
07/11/2026
4h 38m
No alerts
Replay Analysis
N24988BOEING Boeing 787-9 Dreamliner
→
07/11/2026
11h 19m
No alerts
Replay Analysis
N17322BOEING Boeing 737 MAX 8
→
07/11/2026
32m
No alerts
Replay Analysis
N24980BOEING Boeing 787-9 Dreamliner
→
07/11/2026
41m
No alerts
Replay Analysis
N24980BOEING Boeing 787-9 Dreamliner
→
07/10/2026
2h 56m
No alerts
Replay Analysis
N24974BOEING Boeing 787-9 Dreamliner
→
07/10/2026
39m
No alerts
Replay Analysis
N24974BOEING Boeing 787-9 Dreamliner
→
07/09/2026
5h 26m
No alerts
Replay Analysis
N24973BOEING Boeing 787-9 Dreamliner
→
07/09/2026
41m
No alerts
Replay Analysis
N24973BOEING Boeing 787-9 Dreamliner
→
07/08/2026
6h 16m
No alerts
Replay Analysis
N17303BOEING Boeing 737 MAX 8
→
07/08/2026
34m
No alerts
Replay Analysis
N29991BOEING Boeing 787-9 Dreamliner
→
07/08/2026
5h 24m
No alerts
Replay Analysis
N29991BOEING Boeing 787-9 Dreamliner
→
07/07/2026
6h 31m
No alerts
Replay Analysis
© SkyMeter · All flight data subject to ODbL attribution · Tracked: 90-day window