Apparatus

Try JFK, AAL1290, BAW, or N225AN.

flight_takeoff Flight

UAL877

Operated by United Airlines

Live map

Live map filtered to UAL877. Shown when the flight is currently airborne.

Route airports View route page →

Departure

SFO KSFO VFR

San Francisco International Airport

San Francisco, US

Local time
18:41 PDT
Timezone
America/Los_Angeles
Type
Large Airport
Elevation
13 ft
Coordinates
37.6198, -122.3748

cloud Weather

Wind
270° / 15 kt
Visibility
10 SM
Ceiling
FEW 500 ft, SCT 15,000 ft, BKN 20,000 ft
Temp / Dew
18°C / 13°C
Altimeter
29.98 inHg

Obs: 2026-08-29T00:56:00.000Z

Raw METAR / TAF 
METAR KSFO 290056Z 27015KT 10SM FEW005 SCT150 BKN200 18/13 A2998 RMK AO2 SLP152 T01780128 $

TAF KSFO 282335Z 2900/3006 28016KT P6SM VCSH FEW012 BKN150 FM290300 28014KT P6SM FEW012 TEMPO 2904/2908 BKN012 FM290800 29008KT P6SM OVC012 FM291800 29015G25KT P6SM FEW015 FM300400 27015KT P6SM SCT010

flight Live Traffic

flight_takeoff 195 Departures
flight_land 167 Arrivals

Arrival

HKG VHHH VFR

Hong Kong International Airport

Hong Kong, HK

Local time
09:41 GMT+8
Timezone
Asia/Hong_Kong
Type
Large Airport
Elevation
28 ft
Coordinates
22.3118, 113.9149

cloud Weather

Wind
230° / 5 kt
Visibility
6 SM
Ceiling
FEW 1,200 ft, SCT 2,500 ft
Temp / Dew
31°C / 26°C
Altimeter
29.53 inHg

Obs: 2026-08-29T01:30:00.000Z

Raw METAR / TAF 
METAR VHHH 290130Z 23005KT 9999 FEW012 SCT025 31/26 Q1000 NOSIG

TAF VHHH 282300Z 2900/3006 26010KT 9999 FEW010 SCT025 TX33/2906Z TX32/3006Z TN28/2922Z TEMPO 2900/2903 3500 SHRA FEW010CB SCT020 TEMPO 2903/2906 26015G25KT 2500 TSRA SHRA FEW008CB SCT015 PROB30 TEMPO 2921/3003 VRB15G25KT 2500 TSRA SHRA FEW008CB SCT015

flight Live Traffic

flight_takeoff 7 Departures
flight_land 12 Arrivals

Recent history last 30

DateAircraftRouteTakeoffLandingDurationDep ΔArr Δ
2026-07-26 A290D0 SFO → HKG Jul 26, 07:25 UTCJul 26, 20:45 UTC13h 20m - -
2026-07-25 A1C7E4 SFO → HKG Jul 25, 20:50 UTCJul 25, 21:05 UTC15m - -
2026-07-25 A1C7E4 SFO → HKG Jul 25, 07:40 UTCJul 25, 20:20 UTC12h 40m - -
2026-07-24 A21679 SFO → HKG Jul 24, 07:40 UTCJul 24, 20:45 UTC13h 5m - -
2026-07-23 A1C7C1 SFO → HKG Jul 23, 07:31 UTCJul 23, 20:39 UTC13h 8m +41m +7m
2026-07-23 A1C7C1 SFO → HKG Jul 23, 07:35 UTCJul 23, 20:35 UTC13h 0m - -
2026-07-22 A1C82A SFO → HKG Jul 22, 07:21 UTCJul 22, 20:16 UTC12h 55m +31m -2m
2026-07-21 A21679 SFO → HKG Jul 21, 07:33 UTCJul 21, 20:35 UTC13h 2m +43m -1m
2026-07-21 A21679 SFO → HKG Jul 21, 07:30 UTCJul 21, 20:35 UTC13h 5m - -
2026-07-20 A1CAC9 SFO → HKG Jul 20, 16:40 UTCJul 20, 20:45 UTC4h 5m - -
2026-07-20 A1CAC9 SFO → HKG Jul 20, 07:40 UTCJul 20, 08:05 UTC25m - -
2026-07-19 A21DC4 SFO → HKG Jul 19, 07:35 UTCJul 19, 20:30 UTC12h 55m - -
2026-07-18 A1C7C1 - Jul 18, 07:45 UTCJul 18, 08:15 UTC30m - -
2026-07-18 A1C7C1 SFO → HKG Jul 18, 07:29 UTCJul 18, 20:35 UTC13h 6m +39m +8m
2026-07-17 A1C82A - Jul 17, 20:29 UTCJul 17, 20:40 UTC10m - -
2026-07-17 A1C82A SFO → HKG Jul 17, 07:21 UTCJul 17, 20:14 UTC12h 53m +31m +8m
2026-07-17 A1C82A - Jul 17, 07:25 UTCJul 17, 17:50 UTC10h 25m - -
2026-07-16 A1CB0F - Jul 16, 07:45 UTCJul 16, 20:49 UTC13h 5m - -
2026-07-15 A1C7C1 SFO → HKG Jul 15, 07:25 UTCJul 15, 20:35 UTC13h 10m - -
2026-07-14 A2659A SFO → HKG Jul 14, 07:40 UTCJul 14, 20:45 UTC13h 5m - -
2026-07-13 A21679 SFO → HKG Jul 13, 07:28 UTCJul 13, 20:48 UTC13h 20m +38m +35m
2026-07-13 A21679 - Jul 13, 07:50 UTCJul 13, 18:15 UTC10h 25m - -
2026-07-12 A1F622 SFO → HKG Jul 12, 07:40 UTCJul 12, 21:05 UTC13h 25m - -
2026-07-11 A1F2B1 SFO → HKG Jul 11, 07:30 UTCJul 11, 21:03 UTC13h 33m +40m -19m
2026-07-11 A1F2B1 - Jul 11, 07:25 UTCJul 11, 07:50 UTC25m - -
2026-07-10 A290D0 SFO → HKG Jul 10, 08:05 UTCJul 10, 21:25 UTC13h 20m - -
2026-07-09 A21656 SFO → HKG Jul 9, 07:41 UTCJul 9, 20:51 UTC13h 10m +51m -1m
2026-07-09 A21656 SFO → HKG Jul 9, 07:35 UTCJul 9, 21:00 UTC13h 25m - -
2026-07-08 A28DC8 SFO → HKG Jul 8, 07:35 UTCJul 8, 21:00 UTC13h 25m - -
2026-07-07 A1C7E4 - Jul 7, 07:35 UTCJul 7, 20:55 UTC13h 20m - -

Performance history

Flights tracked
185 showing last 30
Avg arrival delay
+4m
On-time arrival
88% 88% on time
Aircraft used
13

Monthly activity 4 months

Month Flights tracked
July 2026 39
June 2026 50
May 2026 52
April 2026 44

UAL877 frequently asked

Where does flight UAL877 fly?
UAL877 (United Airlines) flies from SFO to HKG. View the full route page.
How long is flight UAL877?
Based on observed flights, UAL877 takes on average 10h 32m from takeoff to landing.
How often does UAL877 fly?
UAL877 has been observed flying several times a week in our tracking data. We've recorded 185 flights under this callsign.
Is flight UAL877 usually on time?
Across recent flights, UAL877 arrives with an average 4-minute delay. 88% of flights arrive within 15 minutes of schedule.
What aircraft operates flight UAL877?
UAL877 has been operated by 13 different aircraft in our records. Tail numbers are listed in the recent history below.
Can I track UAL877 live?
Yes. When UAL877 is currently airborne, the live tracker map above shows its real-time position from ADS-B broadcasts. If the map is empty, the flight is not currently in the air.