UAL177 is operated by UNITED AIRLINES INC between Denver International Airport (KDEN) and Leonardo da Vinci–Fiumicino Airport (LIRF). The flight is most often flown by a BOEING Boeing 787-9 Dreamliner. Typical block time is 6h 8m. SkyMeter has observed 146 legs of this flight number via ADS-B.

✈
FLIGHTS
146
last 90 days
⏱
AVG DURATION
6h 8m
tracked time
📅
SERVICE PERIOD
5/27/2025 → 8/12/2026
first → last seen
🗺
ROUTES / TYPES
7 / 1
city pairs · airframes
⚠
INCIDENT RATE
0.0%
0 flagged

Routes flown

By count · last 90 days

4
KDEN → LIRF
78
avg 10h 5m · Denver → Leonardo da Vinci–Fiumicino
CO12 → LIRF
3
avg 9h 48m · Brighton Van-Aire Estates → Leonardo da Vinci–Fiumicino
KDEN → LIRE
1
avg 10h 5m · Denver → Pratica Di Mare Air Base
60CO → LIRF
1
avg 9h 53m · Stevens → Leonardo da Vinci–Fiumicino

Aircraft types

Equipment used on this number

1
B789 BOEING Boeing 787-9 Dreamliner
163

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 UAL177

30
N24974BOEING Boeing 787-9 Dreamliner
→
8/12/2026
10h 10m
No alerts
Replay Analysis
N24974BOEING Boeing 787-9 Dreamliner
→
8/11/2026
23m
No alerts
Replay Analysis
N29968BOEING Boeing 787-9 Dreamliner
→
8/11/2026
10h 12m
No alerts
Replay Analysis
N24980BOEING Boeing 787-9 Dreamliner
→
8/10/2026
9h 53m
No alerts
Replay Analysis
N24980BOEING Boeing 787-9 Dreamliner
→
8/9/2026
22m
No alerts
Replay Analysis
N22992BOEING Boeing 787-9 Dreamliner
→
8/9/2026
10h 14m
No alerts
Replay Analysis
N22992BOEING Boeing 787-9 Dreamliner
→
8/8/2026
16m
No alerts
Replay Analysis
N27957BOEING Boeing 787-9 Dreamliner
→
8/8/2026
9h 54m
No alerts
Replay Analysis
N27957BOEING Boeing 787-9 Dreamliner
→
8/7/2026
32m
No alerts
Replay Analysis
N26960BOEING Boeing 787-9 Dreamliner
→
8/7/2026
9h 46m
No alerts
Replay Analysis
N13954BOEING Boeing 787-9 Dreamliner
→
8/6/2026
9h 39m
No alerts
Replay Analysis
N13954BOEING Boeing 787-9 Dreamliner
→
8/5/2026
22m
No alerts
Replay Analysis
N24979BOEING Boeing 787-9 Dreamliner
→
8/5/2026
9h 42m
No alerts
Replay Analysis
N24979BOEING Boeing 787-9 Dreamliner
→
8/4/2026
20m
No alerts
Replay Analysis
N38950BOEING Boeing 787-9 Dreamliner
→
8/4/2026
9h 50m
No alerts
Replay Analysis
N38950BOEING Boeing 787-9 Dreamliner
→
8/3/2026
10h 40m
No alerts
Replay Analysis
N38950BOEING Boeing 787-9 Dreamliner
→
8/2/2026
14m
No alerts
Replay Analysis
N24974BOEING Boeing 787-9 Dreamliner
→
8/2/2026
2h 38m
No alerts
Replay Analysis
N38955BOEING Boeing 787-9 Dreamliner
→
8/1/2026
9h 46m
No alerts
Replay Analysis
N38955BOEING Boeing 787-9 Dreamliner
→
7/31/2026
27m
No alerts
Replay Analysis
N22992BOEING Boeing 787-9 Dreamliner
→
7/31/2026
10h 2m
No alerts
Replay Analysis
N24979BOEING Boeing 787-9 Dreamliner
→
7/30/2026
9h 55m
No alerts
Replay Analysis
N24979BOEING Boeing 787-9 Dreamliner
→
7/29/2026
10m
No alerts
Replay Analysis
N22992BOEING Boeing 787-9 Dreamliner
→
7/29/2026
9h 42m
No alerts
Replay Analysis
N22992BOEING Boeing 787-9 Dreamliner
→
7/28/2026
13m
No alerts
Replay Analysis
N29975BOEING Boeing 787-9 Dreamliner
→
7/28/2026
9h 58m
No alerts
Replay Analysis
N29975BOEING Boeing 787-9 Dreamliner
→
7/27/2026
13m
No alerts
Replay Analysis
N38950BOEING Boeing 787-9 Dreamliner
→
7/27/2026
9h 53m
No alerts
Replay Analysis
N38950BOEING Boeing 787-9 Dreamliner
→
7/26/2026
14m
No alerts
Replay Analysis
N24974BOEING Boeing 787-9 Dreamliner
→
7/26/2026
9h 55m
No alerts
Replay Analysis
© SkyMeter · All flight data subject to ODbL attribution · Tracked: 90-day window