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 21m. SkyMeter has observed 180 legs of this flight number via ADS-B.

✈
FLIGHTS
180
last 90 days
⏱
AVG DURATION
3h 21m
tracked time
📅
SERVICE PERIOD
05/27/2025 → 08/21/2026
first → last seen
🗺
ROUTES / TYPES
7 / 4
city pairs · airframes
⚠
INCIDENT RATE
0.0%
0 flagged

Routes flown

By count · last 90 days

3
KDEN → RJAA
19
avg 11h 33m · Denver → Narita
KDEN → KSEA
1
avg 3h 0m · Denver → Seattle Tacoma
KSEA → RJAA
1
avg 9h 40m · Seattle Tacoma → Narita

Aircraft types

Equipment used on this number

4
B789 BOEING Boeing 787-9 Dreamliner
192
B38M BOEING Boeing 737 MAX 8
20
G280 GULFSTREAM AEROSPACE Gulfstream G280
3
B738 BOEING Boeing 737-800
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
N27957BOEING Boeing 787-9 Dreamliner
→
08/21/2026
2h 44m
No alerts
Replay Analysis
N27997BOEING Boeing 787-9 Dreamliner
→
08/20/2026
2h 37m
No alerts
Replay Analysis
N19986BOEING Boeing 787-9 Dreamliner
→
08/20/2026
42m
No alerts
Replay Analysis
N19986BOEING Boeing 787-9 Dreamliner
→
08/19/2026
3h 12m
No alerts
Replay Analysis
N17306BOEING Boeing 737 MAX 8
→
08/19/2026
37m
No alerts
Replay Analysis
N17963BOEING Boeing 787-9 Dreamliner
→
08/18/2026
2h 43m
No alerts
Replay Analysis
N28987BOEING Boeing 787-9 Dreamliner
→
08/18/2026
42m
No alerts
Replay Analysis
N28987BOEING Boeing 787-9 Dreamliner
→
08/17/2026
2h 35m
No alerts
Replay Analysis
N13954BOEING Boeing 787-9 Dreamliner
→
08/17/2026
45m
No alerts
Replay Analysis
N13954BOEING Boeing 787-9 Dreamliner
→
08/16/2026
5h 38m
No alerts
Replay Analysis
N24974BOEING Boeing 787-9 Dreamliner
→
08/16/2026
46m
No alerts
Replay Analysis
N24974BOEING Boeing 787-9 Dreamliner
→
08/15/2026
6h 11m
No alerts
Replay Analysis
N17306BOEING Boeing 737 MAX 8
→
08/15/2026
36m
No alerts
Replay Analysis
N24980BOEING Boeing 787-9 Dreamliner
→
08/15/2026
41m
No alerts
Replay Analysis
N24980BOEING Boeing 787-9 Dreamliner
→
08/14/2026
5h 54m
No alerts
Replay Analysis
N29968BOEING Boeing 787-9 Dreamliner
→
08/14/2026
42m
No alerts
Replay Analysis
N29968BOEING Boeing 787-9 Dreamliner
→
08/13/2026
6h 19m
No alerts
Replay Analysis
N22992BOEING Boeing 787-9 Dreamliner
→
08/12/2026
1h 45m
No alerts
Replay Analysis
N22992BOEING Boeing 787-9 Dreamliner
→
08/12/2026
42m
No alerts
Replay Analysis
N27957BOEING Boeing 787-9 Dreamliner
→
08/11/2026
6h 37m
No alerts
Replay Analysis
N13954BOEING Boeing 787-9 Dreamliner
→
08/11/2026
46m
No alerts
Replay Analysis
N13954BOEING Boeing 787-9 Dreamliner
→
08/10/2026
2h 47m
No alerts
Replay Analysis
N26960BOEING Boeing 787-9 Dreamliner
→
08/10/2026
39m
No alerts
Replay Analysis
N26960BOEING Boeing 787-9 Dreamliner
→
08/09/2026
5h 47m
No alerts
Replay Analysis
N29991BOEING Boeing 787-9 Dreamliner
→
08/09/2026
41m
No alerts
Replay Analysis
N29991BOEING Boeing 787-9 Dreamliner
→
08/08/2026
3h 59m
No alerts
Replay Analysis
N37319BOEING Boeing 737 MAX 8
→
08/08/2026
34m
No alerts
Replay Analysis
N24974BOEING Boeing 787-9 Dreamliner
→
08/08/2026
40m
No alerts
Replay Analysis
N24974BOEING Boeing 787-9 Dreamliner
→
08/07/2026
2h 40m
No alerts
Replay Analysis
N38950BOEING Boeing 787-9 Dreamliner
→
08/07/2026
47m
No alerts
Replay Analysis
© SkyMeter · All flight data subject to ODbL attribution · Tracked: 90-day window