Apparatus

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flight_takeoff Flight

UAL878

Operated by UAL

Live map

Live map filtered to UAL878. Shown when the flight is currently airborne.

Route airports View route page →

Departure

HKG VHHH VFR

Hong Kong International Airport

Hong Kong, HK

Local time
06:57 GMT+8
Timezone
Asia/Hong_Kong
Type
Large Airport
Elevation
28 ft
Coordinates
22.3118, 113.9149

cloud Weather

Wind
210° / 3 kt
Visibility
6 SM
Ceiling
FEW 1,500 ft
Temp / Dew
29°C / 26°C
Altimeter
29.53 inHg

Obs: 2026-08-28T22:30:00.000Z

Raw METAR / TAF 
METAR VHHH 282230Z 21003KT 100V270 9999 FEW015 29/26 Q1000 NOSIG

TAF VHHH 282000Z 2821/3003 26010KT 9999 FEW010 SCT025 TX33/2906Z TN28/2822Z 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 12 Departures
flight_land 10 Arrivals

Arrival

SFO KSFO VFR

San Francisco International Airport

San Francisco, US

Local time
15:57 PDT
Timezone
America/Los_Angeles
Type
Large Airport
Elevation
13 ft
Coordinates
37.6198, -122.3748

cloud Weather

Wind
300° / 12 kt
Visibility
10 SM
Ceiling
FEW 500 ft, SCT 11,000 ft, BKN 18,000 ft
Temp / Dew
18°C / 13°C
Altimeter
30.01 inHg

Obs: 2026-08-28T21:56:00.000Z

Raw METAR / TAF 
METAR KSFO 282156Z 30012KT 10SM FEW005 SCT110 BKN180 18/13 A3001 RMK AO2 SLP163 T01830133

TAF KSFO 282047Z 2821/2924 28016KT P6SM VCSH SCT010 BKN100 FM290600 28012KT P6SM FEW012 FM291000 29008KT P6SM SCT012 FM291800 29015KT P6SM FEW015

flight Live Traffic

flight_takeoff 229 Departures
flight_land 217 Arrivals

Recent history last 30

DateAircraftRouteTakeoffLandingDurationDep ΔArr Δ
2026-07-26 A2E014 HKG → SFO Jul 26, 15:25 UTCJul 26, 17:25 UTC2h 0m - -
2026-07-25 A1F5FF HKG → SFO Jul 25, 16:55 UTCJul 26, 03:20 UTC10h 25m - -
2026-07-25 A1F5FF HKG → SFO Jul 25, 14:50 UTCJul 25, 15:05 UTC15m - -
2026-07-25 A1F5FF HKG → SFO Jul 25, 14:51 UTCJul 26, 03:14 UTC12h 23m +21m +1m
2026-07-24 A1C7E4 HKG → SFO Jul 24, 14:51 UTCJul 25, 03:25 UTC12h 34m +21m -4m
2026-07-24 A1C7E4 HKG → SFO Jul 24, 14:51 UTCJul 25, 03:32 UTC12h 41m +21m +3m
2026-07-24 A1C7E4 HKG → SFO Jul 24, 14:55 UTCJul 24, 18:40 UTC3h 45m - -
2026-07-23 A21679 HKG → SFO Jul 23, 14:55 UTCJul 23, 16:05 UTC1h 10m - -
2026-07-23 A21679 HKG → SFO Jul 23, 14:51 UTCJul 24, 03:12 UTC12h 21m +21m -14m
2026-07-22 A1C7C1 HKG → SFO Jul 22, 15:00 UTCJul 23, 03:35 UTC12h 35m - -
2026-07-21 A1C82A HKG → SFO Jul 21, 14:51 UTCJul 22, 03:16 UTC12h 25m +21m -7m
2026-07-21 A1C82A HKG → SFO Jul 21, 14:51 UTCJul 22, 03:02 UTC12h 11m +21m -21m
2026-07-21 A1C82A HKG → SFO Jul 21, 14:45 UTCJul 21, 15:55 UTC1h 10m - -
2026-07-20 A2B8B8 HKG → SFO Jul 20, 14:50 UTCJul 20, 18:00 UTC3h 10m - -
2026-07-20 A2B8B8 HKG → SFO Jul 20, 14:51 UTCJul 21, 03:28 UTC12h 37m +21m -16m
2026-07-20 A2B8B8 HKG → SFO Jul 20, 14:51 UTCJul 21, 03:14 UTC12h 23m +21m -30m
2026-07-19 A2B8DB HKG → SFO Jul 19, 14:51 UTCJul 20, 03:25 UTC12h 34m +21m -3m
2026-07-19 A2B8DB HKG → SFO Jul 19, 14:50 UTCJul 20, 03:25 UTC12h 35m - -
2026-07-19 A2B8DB HKG → SFO Jul 19, 14:51 UTCJul 20, 03:23 UTC12h 32m +21m -5m
2026-07-18 A219EA HKG → SFO Jul 18, 14:51 UTCJul 19, 03:15 UTC12h 24m +21m -3m
2026-07-18 A219EA HKG → SFO Jul 18, 14:45 UTCJul 19, 03:20 UTC12h 35m - -
2026-07-17 A1C7C1 HKG → SFO Jul 17, 14:51 UTCJul 18, 03:23 UTC12h 32m +21m -4m
2026-07-17 A1C7C1 - Jul 17, 14:50 UTCJul 17, 18:34 UTC3h 45m - -
2026-07-16 A2659A HKG → SFO Jul 16, 14:51 UTCJul 17, 03:36 UTC12h 45m +21m +5m
2026-07-15 A21679 HKG → SFO Jul 15, 14:50 UTCJul 16, 03:30 UTC12h 40m - -
2026-07-14 A1CAC9 HKG → SFO Jul 14, 14:55 UTCJul 15, 03:25 UTC12h 29m - -
2026-07-13 A2B8B8 HKG → SFO Jul 13, 14:51 UTCJul 14, 03:30 UTC12h 39m +21m -2m
2026-07-13 A2B8B8 - Jul 13, 14:55 UTCJul 14, 03:40 UTC12h 45m - -
2026-07-12 A2B8FE - Jul 12, 14:50 UTCJul 13, 03:20 UTC12h 30m - -
2026-07-11 A21656 - Jul 11, 15:45 UTCJul 12, 03:50 UTC12h 5m - -

Performance history

Flights tracked
191 showing last 30
Avg arrival delay
-7m
On-time arrival
100% 100% on time
Aircraft used
13

Monthly activity 4 months

Month Flights tracked
July 2026 48
June 2026 55
May 2026 49
April 2026 39

UAL878 frequently asked

Where does flight UAL878 fly?
UAL878 (UAL) flies from HKG to SFO. View the full route page.
How long is flight UAL878?
Based on observed flights, UAL878 takes on average 10h 2m from takeoff to landing.
How often does UAL878 fly?
UAL878 has been observed flying several times a week in our tracking data. We've recorded 191 flights under this callsign.
Is flight UAL878 usually on time?
Across recent flights, UAL878 arrives 7 minutes early on average. 100% of flights arrive within 15 minutes of schedule.
What aircraft operates flight UAL878?
UAL878 has been operated by 13 different aircraft in our records. Tail numbers are listed in the recent history below.
Can I track UAL878 live?
Yes. When UAL878 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.