Apparatus

Try JFK, AAL1290, BAW, or N225AN.

flight_takeoff Flight

UAL3910

Operated by United Airlines

Live map

Live map filtered to UAL3910. 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
02:05 GMT+8
Timezone
Asia/Hong_Kong
Type
Large Airport
Elevation
28 ft
Coordinates
22.3118, 113.9149

cloud Weather

Wind
230° / 12 kt
Visibility
6 SM
Ceiling
FEW 1,000 ft, SCT 2,500 ft
Temp / Dew
29°C / 27°C
Altimeter
29.53 inHg
Wx
-SHRA

Obs: 2026-08-28T18:00:00.000Z

Raw METAR / TAF 
METAR VHHH 281800Z 23012KT 9999 -SHRA FEW010 SCT025 29/27 Q1000 TEMPO 4000 SHRA FEW010CB SCT020

TAF VHHH 281700Z 2818/2924 26010KT 9999 FEW010 SCT025 TX33/2906Z TN28/2822Z TN28/2922Z TEMPO 2818/2822 26015G25KT 2500 TSRA SHRA FEW008CB SCT015 TEMPO 2822/2902 4000 SHRA FEW010CB SCT020 TEMPO 2904/2908 3500 SHRA FEW010CB SCT020 PROB30 TEMPO 2921/2924 VRB15G25KT 2500 TSRA SHRA FEW008CB SCT015

Arrival

SFO KSFO VFR

San Francisco International Airport

San Francisco, US

Local time
11:05 PDT
Timezone
America/Los_Angeles
Type
Large Airport
Elevation
13 ft
Coordinates
37.6198, -122.3748

cloud Weather

Wind
300° / 13 kt
Visibility
10 SM
Ceiling
FEW 400 ft, SCT 11,000 ft, OVC 20,000 ft
Temp / Dew
17°C / 14°C
Altimeter
30.02 inHg

Obs: 2026-08-28T17:56:00.000Z

Raw METAR / TAF 
METAR KSFO 281756Z 30013KT 10SM FEW004 SCT110 OVC200 17/14 A3002 RMK AO2 SLP164 60000 T01670139 10167 20150 51007

TAF KSFO 281739Z 2818/2924 30012KT P6SM VCSH BKN120 FM282000 29016KT P6SM VCSH BKN100 FM290700 29010KT P6SM FEW012 FM291000 29008KT P6SM SCT012 FM291800 29015KT P6SM FEW015

Recent history last 30

DateAircraftRouteTakeoffLandingDurationDep ΔArr Δ
2026-07-23 AA3B05 HKG → SFO Jul 23, 09:17 UTCJul 23, 14:10 UTC4h 53m +137m -7m
2026-07-20 A5F1CA HKG → SFO Jul 20, 15:30 UTCJul 20, 17:45 UTC2h 15m - -
2026-07-18 A8C4D8 HKG → SFO Jul 18, 21:05 UTCJul 19, 02:20 UTC5h 15m - -
2026-07-18 A8C4D8 HKG → SFO Jul 18, 19:39 UTCJul 19, 02:43 UTC7h 4m +99m -67m
2026-07-10 A9D5A2 - Jul 10, 14:40 UTCJul 10, 15:40 UTC1h 0m - -
2026-07-07 AB5DD4 - Jul 7, 15:20 UTCJul 7, 16:30 UTC1h 10m - -
2026-07-05 AA56B3 IAD → EWR Jul 5, 12:10 UTCJul 5, 12:55 UTC45m - -
2026-07-04 A43E5E COS → ORD Jul 4, 14:30 UTCJul 4, 16:40 UTC2h 10m - -
2026-07-04 A43E5E COS → ORD Jul 4, 14:17 UTCJul 4, 16:20 UTC2h 3m +17m -4m
2026-06-30 AAE757 - Jun 30, 23:35 UTCJul 1, 00:35 UTC1h 0m - -
2026-06-29 A0EEEA EWR → ORD Jun 29, 01:01 UTCJun 29, 02:37 UTC1h 36m +31m -4m
2026-06-29 A0EEEA EWR → ORD Jun 29, 00:54 UTCJun 29, 02:50 UTC1h 55m - -
2026-06-17 AB819C HKG → SFO Jun 17, 16:19 UTCJun 17, 16:44 UTC25m +79m +25m
2026-06-17 AB819C HKG → SFO Jun 17, 16:00 UTCJun 17, 16:45 UTC45m - -
2026-06-14 A55B3C HKG → SFO Jun 14, 21:25 UTCJun 14, 22:30 UTC1h 5m - -
2026-06-12 A76F67 HKG → SFO Jun 12, 20:25 UTCJun 12, 22:30 UTC2h 5m - -
2026-06-12 A2E045 HKG → SFO Jun 12, 03:15 UTCJun 12, 05:35 UTC2h 20m - -
2026-06-12 A2E045 HKG → SFO Jun 12, 02:58 UTCJun 12, 05:32 UTC2h 34m +208m -6m
2026-06-11 AA8A07 HKG → SFO Jun 11, 01:25 UTCJun 11, 04:30 UTC3h 5m - -
2026-06-09 AAA125 HKG → SFO Jun 9, 17:00 UTCJun 10, 01:40 UTC8h 40m - -
2026-06-09 AAA125 HKG → SFO Jun 9, 16:57 UTCJun 10, 01:46 UTC8h 49m +167m +19m
2026-06-04 AB1DB2 HKG → SFO Jun 4, 22:50 UTCJun 5, 00:15 UTC1h 25m - -
2026-05-29 AB329E HKG → SFO May 29, 17:45 UTCMay 29, 19:30 UTC1h 45m - -
2026-05-24 A288FF HKG → SFO May 24, 02:50 UTCMay 24, 06:45 UTC3h 55m - -
2026-05-24 A288FF HKG → SFO May 24, 02:48 UTCMay 24, 06:48 UTC4h 0m +378m -4m
2026-05-11 A8C88F HKG → SFO May 11, 22:05 UTCMay 11, 22:35 UTC29m - -
2026-05-08 AA7E99 HKG → SFO May 8, 05:20 UTCMay 8, 05:39 UTC20m - -
2026-05-05 A43EC9 HKG → SFO May 5, 22:25 UTCMay 6, 01:45 UTC3h 20m - -
2026-04-29 A4943F HKG → SFO Apr 29, 21:30 UTCApr 30, 00:57 UTC3h 27m +30m +9m
2026-04-29 A4943F HKG → SFO Apr 29, 21:25 UTCApr 30, 01:00 UTC3h 34m - -

Performance history

Flights tracked
36 showing last 30
Avg arrival delay
-4m
On-time arrival
78% 78% on time
Aircraft used
22

Monthly activity 4 months

Month Flights tracked
July 2026 9
June 2026 13
May 2026 6
April 2026 8

UAL3910 frequently asked

Where does flight UAL3910 fly?
UAL3910 (United Airlines) flies from HKG to SFO. View the full route page.
How long is flight UAL3910?
Based on observed flights, UAL3910 takes on average 2h 46m from takeoff to landing.
How often does UAL3910 fly?
UAL3910 has been observed flying several times a week in our tracking data. We've recorded 36 flights under this callsign.
Is flight UAL3910 usually on time?
Across recent flights, UAL3910 arrives 4 minutes early on average. 78% of flights arrive within 15 minutes of schedule.
What aircraft operates flight UAL3910?
UAL3910 has been operated by 22 different aircraft in our records. Tail numbers are listed in the recent history below.
Can I track UAL3910 live?
Yes. When UAL3910 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.