Apparatus

Try JFK, AAL1290, BAW, or N225AN.

flight_takeoff Flight

UAL3905

Operated by United Airlines

Live map

Live map filtered to UAL3905. Shown when the flight is currently airborne.

Route airports View route page →

Departure

TPE RCTP MVFR

Taiwan Taoyuan International Airport

Taoyuan, TW

Local time
16:01 GMT+8
Timezone
Asia/Taipei
Type
Large Airport
Elevation
106 ft
Coordinates
25.0777, 121.2330

cloud Weather

Wind
350° / 7 kt
Visibility
6 SM
Ceiling
FEW 800 ft, BKN 1,200 ft, BKN 3,000 ft
Temp / Dew
26°C / 23°C
Altimeter
29.79 inHg

Obs: 2026-04-15T07:30:00.000Z

Raw METAR / TAF 
METAR RCTP 150730Z 35007KT 310V010 9999 FEW008 BKN012 BKN030 26/23 Q1009 NOSIG RMK A2981

TAF RCTP 150500Z 1506/1612 33010KT 9999 FEW015 BKN032 TEMPO 1508/1514 05010KT 5000 SHRA SCT005 BKN012 BECMG 1514/1516 09005KT TEMPO 1514/1518 5000 RA FEW010 BKN022 BECMG 1602/1604 33008KT

flight Live Traffic

flight_takeoff 7 Departures
flight_land 19 Arrivals

Arrival

SFO KSFO MVFR

San Francisco International Airport

San Francisco, US

Local time
01:01 PDT
Timezone
America/Los_Angeles
Type
Large Airport
Elevation
13 ft
Coordinates
37.6198, -122.3748

cloud Weather

Wind
260° / 6 kt
Visibility
10 SM
Ceiling
BKN 2,100 ft
Temp / Dew
12°C / 8°C
Altimeter
30.12 inHg

Obs: 2026-04-15T07:56:00.000Z

Raw METAR / TAF 
METAR KSFO 150756Z 26006KT 10SM BKN021 12/08 A3012 RMK AO2 SLP199 T01220078 401610117 $

TAF KSFO 150738Z 1508/1612 28010KT P6SM BKN020 FM151400 28014KT P6SM BKN050 FM151900 27018KT P6SM BKN150 FM160400 27015KT P6SM BKN030

flight Live Traffic

flight_takeoff 147 Departures
flight_land 56 Arrivals

Recent history last 1

DateAircraftRouteTakeoffLandingDurationDep ΔArr Δ
2026-04-13 AB5056 TPE → SFO Apr 13, 12:41 UTCApr 13, 15:53 UTC3h 12m +71m -10m

Performance history

Flights tracked
1
Avg arrival delay
-10m
On-time arrival
100% 100% on time
Aircraft used
1

Monthly activity 1 month

Month Flights tracked
April 2026 1

UAL3905 frequently asked

Where does flight UAL3905 fly?
UAL3905 (United Airlines) flies from TPE to SFO. View the full route page.
How long is flight UAL3905?
Based on observed flights, UAL3905 takes on average 3h 12m from takeoff to landing.
How often does UAL3905 fly?
UAL3905 has been observed flying rarely in our tracking data. We've recorded 1 flight under this callsign.
Is flight UAL3905 usually on time?
Across recent flights, UAL3905 arrives 10 minutes early on average. 100% of flights arrive within 15 minutes of schedule.
Can I track UAL3905 live?
Yes. When UAL3905 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.