UAL423 is operated by UNITED AIRLINES INC between Eleftherios Venizelos International Airport (LGAV) and Chicago O'Hare International Airport (KORD). The flight is most often flown by a BOEING Boeing 787-10 Dreamliner. Typical block time is 10h 9m. SkyMeter has observed 95 legs of this flight number via ADS-B.

✈
FLIGHTS
95
last 90 days
⏱
AVG DURATION
10h 9m
tracked time
📅
SERVICE PERIOD
05/27/2025 → 08/20/2026
first → last seen
🗺
ROUTES / TYPES
6 / 1
city pairs · airframes
⚠
INCIDENT RATE
0.0%
0 flagged

Routes flown

By count · last 90 days

3
LGAV → KORD
84
avg 10h 45m · Eleftherios Venizelos → Chicago O'Hare
LGAV → KPWK
1
avg 10h 17m · Eleftherios Venizelos → Chicago Executive
LL53 → KORD
1
avg 30m · Olson → Chicago O'Hare

Aircraft types

Equipment used on this number

1
B78X BOEING Boeing 787-10 Dreamliner
97

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 UAL423

30
N16008BOEING Boeing 787-10 Dreamliner
→
08/20/2026
10h 41m
No alerts
Replay Analysis
N17015BOEING Boeing 787-10 Dreamliner
→
08/19/2026
11h 3m
No alerts
Replay Analysis
N12010BOEING Boeing 787-10 Dreamliner
→
08/18/2026
11h 11m
No alerts
Replay Analysis
N16008BOEING Boeing 787-10 Dreamliner
→
08/17/2026
11h 3m
No alerts
Replay Analysis
N14016BOEING Boeing 787-10 Dreamliner
→
08/16/2026
11h 34m
No alerts
Replay Analysis
N14011BOEING Boeing 787-10 Dreamliner
→
08/15/2026
7m
No alerts
Replay Analysis
N14011BOEING Boeing 787-10 Dreamliner
→
08/15/2026
10h 47m
No alerts
Replay Analysis
N12003BOEING Boeing 787-10 Dreamliner
→
08/14/2026
10h 53m
No alerts
Replay Analysis
N12004BOEING Boeing 787-10 Dreamliner
→
08/13/2026
10h 48m
No alerts
Replay Analysis
N12021BOEING Boeing 787-10 Dreamliner
→
08/12/2026
10h 12m
No alerts
Replay Analysis
N12005BOEING Boeing 787-10 Dreamliner
→
08/11/2026
10h 24m
No alerts
Replay Analysis
N12020BOEING Boeing 787-10 Dreamliner
→
08/10/2026
10h 52m
No alerts
Replay Analysis
N17017BOEING Boeing 787-10 Dreamliner
→
08/09/2026
11h 1m
No alerts
Replay Analysis
N12010BOEING Boeing 787-10 Dreamliner
→
08/08/2026
11h 15m
No alerts
Replay Analysis
N14019BOEING Boeing 787-10 Dreamliner
→
08/07/2026
10h 54m
No alerts
Replay Analysis
N12004BOEING Boeing 787-10 Dreamliner
→
08/06/2026
11h 12m
No alerts
Replay Analysis
N13014BOEING Boeing 787-10 Dreamliner
→
08/05/2026
10h 37m
No alerts
Replay Analysis
N12010BOEING Boeing 787-10 Dreamliner
→
08/04/2026
12m
No alerts
Replay Analysis
N12010BOEING Boeing 787-10 Dreamliner
→
08/04/2026
10h 17m
No alerts
Replay Analysis
N12006BOEING Boeing 787-10 Dreamliner
→
08/03/2026
10h 37m
No alerts
Replay Analysis
N17002BOEING Boeing 787-10 Dreamliner
→
08/02/2026
10h 38m
No alerts
Replay Analysis
N13014BOEING Boeing 787-10 Dreamliner
→
08/01/2026
10h 30m
No alerts
Replay Analysis
N14011BOEING Boeing 787-10 Dreamliner
→
07/31/2026
10h 52m
No alerts
Replay Analysis
N17015BOEING Boeing 787-10 Dreamliner
→
07/30/2026
10h 33m
No alerts
Replay Analysis
N13014BOEING Boeing 787-10 Dreamliner
→
07/29/2026
11h 0m
No alerts
Replay Analysis
N14016BOEING Boeing 787-10 Dreamliner
→
07/29/2026
2h 34m
No alerts
Replay Analysis
N14016BOEING Boeing 787-10 Dreamliner
→
07/28/2026
4h 16m
No alerts
Replay Analysis
N16008BOEING Boeing 787-10 Dreamliner
→
07/28/2026
48m
No alerts
Replay Analysis
N16008BOEING Boeing 787-10 Dreamliner
→
07/27/2026
11h 37m
No alerts
Replay Analysis
N16008BOEING Boeing 787-10 Dreamliner
→
07/27/2026
10h 48m
No alerts
Replay Analysis
© SkyMeter · All flight data subject to ODbL attribution · Tracked: 90-day window