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
07:55 GMT+8
Timezone
Asia/Hong_Kong
Type
Large Airport
Elevation
28 ft
Coordinates
22.3118, 113.9149

cloud Weather

Wind
210° / 5 kt
Visibility
6 SM
Ceiling
FEW 1,200 ft
Temp / Dew
30°C / 26°C
Altimeter
29.50 inHg

Obs: 2026-08-28T23:30:00.000Z

Raw METAR / TAF 
METAR VHHH 282330Z 21005KT 110V260 9999 FEW012 30/26 Q0999 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 7 Arrivals

Arrival

SFO KSFO VFR

San Francisco International Airport

San Francisco, US

Local time
16:55 PDT
Timezone
America/Los_Angeles
Type
Large Airport
Elevation
13 ft
Coordinates
37.6198, -122.3748

cloud Weather

Wind
290° / 14 kt
Visibility
10 SM
Ceiling
FEW 400 ft, FEW 1,200 ft, SCT 11,000 ft, BKN 18,000 ft
Temp / Dew
17°C / 13°C
Altimeter
30.00 inHg

Obs: 2026-08-28T22:56:00.000Z

Raw METAR / TAF 
METAR KSFO 282256Z 29014KT 10SM FEW004 FEW012 SCT110 BKN180 17/13 A3000 RMK AO2 SLP159 T01720128 $

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 212 Departures
flight_land 203 Arrivals

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.