UAL877 is operated by UNITED AIRLINES INC between San Francisco International Airport (KSFO) and Hong Kong International Airport (VHHH). The flight is most often flown by a BOEING Boeing 777-300ER. Typical block time is 13h 1m. SkyMeter has observed 89 legs of this flight number via ADS-B.

✈
FLIGHTS
89
last 90 days
⏱
AVG DURATION
13h 1m
tracked time
📅
SERVICE PERIOD
05/27/2025 → 07/19/2026
first → last seen
🗺
ROUTES / TYPES
11 / 1
city pairs · airframes
⚠
INCIDENT RATE
0.0%
0 flagged

Routes flown

By count · last 90 days

9
KSFO → VHHH
59
avg 14h 15m · San Francisco → Hong Kong
KHAF → VHHH
12
avg 14h 25m · Half Moon Bay → Hong Kong
KOAK → VHHH
4
avg 14h 1m · Metropolitan Oakland → Hong Kong
KSFO → ZGNT
2
avg 14h 37m · San Francisco → Shenzhen Nantou Heliport
CN-0120 → VHHH
2
avg 15m · Guishan Dao Helipad → Hong Kong
US-0188 → VHHH
1
avg 13h 17m · Coast Guard Air Station San Francisco → Hong Kong
PANC → KSFO
1
avg 4h 34m · Ted Stevens Anchorage → San Francisco
KSFO → VMMC
1
avg 15h 18m · San Francisco → Macau
KSFO → PANC
1
avg 7h 47m · San Francisco → Ted Stevens Anchorage

Aircraft types

Equipment used on this number

1
B77W BOEING Boeing 777-300ER
89

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 UAL877

30
N2352UBOEING Boeing 777-300ER
→
07/19/2026
13h 27m
No alerts
Replay Analysis
N2135UBOEING Boeing 777-300ER
→
07/18/2026
13h 36m
No alerts
Replay Analysis
N2138UBOEING Boeing 777-300ER
→
07/17/2026
14h 0m
No alerts
Replay Analysis
N2142UBOEING Boeing 777-300ER
→
07/16/2026
14h 6m
No alerts
Replay Analysis
N2135UBOEING Boeing 777-300ER
→
07/15/2026
13h 39m
No alerts
Replay Analysis
N2534UBOEING Boeing 777-300ER
→
07/14/2026
13h 48m
No alerts
Replay Analysis
N2333UBOEING Boeing 777-300ER
→
07/13/2026
13h 48m
No alerts
Replay Analysis
N2251UBOEING Boeing 777-300ER
→
07/12/2026
14h 4m
No alerts
Replay Analysis
N2243UBOEING Boeing 777-300ER
→
07/11/2026
14h 36m
No alerts
Replay Analysis
N2644UBOEING Boeing 777-300ER
→
07/10/2026
14h 31m
No alerts
Replay Analysis
N2332UBOEING Boeing 777-300ER
→
07/09/2026
13h 48m
No alerts
Replay Analysis
N2639UBOEING Boeing 777-300ER
→
07/08/2026
14h 4m
No alerts
Replay Analysis
N2136UBOEING Boeing 777-300ER
→
07/07/2026
14h 2m
No alerts
Replay Analysis
N2135UBOEING Boeing 777-300ER
→
07/06/2026
14h 0m
No alerts
Replay Analysis
N2332UBOEING Boeing 777-300ER
→
07/05/2026
13h 55m
No alerts
Replay Analysis
N2639UBOEING Boeing 777-300ER
→
07/04/2026
13h 50m
No alerts
Replay Analysis
N2142UBOEING Boeing 777-300ER
→
07/03/2026
13h 55m
No alerts
Replay Analysis
N2243UBOEING Boeing 777-300ER
→
07/02/2026
13h 39m
No alerts
Replay Analysis
N2333UBOEING Boeing 777-300ER
→
07/01/2026
13h 32m
No alerts
Replay Analysis
N2749UBOEING Boeing 777-300ER
→
06/30/2026
13h 51m
No alerts
Replay Analysis
N2250UBOEING Boeing 777-300ER
→
06/29/2026
14h 11m
No alerts
Replay Analysis
N2639UBOEING Boeing 777-300ER
→
06/28/2026
13h 43m
No alerts
Replay Analysis
N2331UBOEING Boeing 777-300ER
→
06/27/2026
13h 44m
No alerts
Replay Analysis
N2251UBOEING Boeing 777-300ER
→
06/26/2026
14h 30m
No alerts
Replay Analysis
N2747UBOEING Boeing 777-300ER
→
06/25/2026
14h 3m
No alerts
Replay Analysis
N2644UBOEING Boeing 777-300ER
→
06/24/2026
13h 59m
No alerts
Replay Analysis
N2142UBOEING Boeing 777-300ER
→
06/23/2026
14h 2m
No alerts
Replay Analysis
N2749UBOEING Boeing 777-300ER
→
06/22/2026
13h 41m
No alerts
Replay Analysis
N2644UBOEING Boeing 777-300ER
→
06/21/2026
13h 44m
No alerts
Replay Analysis
N2142UBOEING Boeing 777-300ER
→
06/20/2026
13h 56m
No alerts
Replay Analysis
© SkyMeter · All flight data subject to ODbL attribution · Tracked: 90-day window