Apparatus

Try JFK, AAL1290, BAW, or N225AN.

flight_takeoff Flight

UAL3863

Operated by United Airlines

Live map

Live map filtered to UAL3863. Shown when the flight is currently airborne.

Route airports View route page →

Departure

SJC KSJC VFR

Norman Y. Mineta San Jose International Airport

San Jose, US

Local time
20:22 PDT
Timezone
America/Los_Angeles
Type
Large Airport
Elevation
62 ft
Coordinates
37.3625, -121.9292

cloud Weather

Wind
340° / 13 kt
Visibility
10 SM
Ceiling
FEW 3,000 ft, FEW 4,100 ft, FEW 5,000 ft
Temp / Dew
16°C / 11°C
Altimeter
30.08 inHg

Obs: 2026-05-30T02:53:00.000Z

Raw METAR / TAF 
METAR KSJC 300253Z 34013KT 10SM FEW030 FEW041 FEW050 16/11 A3008 RMK AO2 SLP184 T01610111 53006

TAF KSJC 292320Z 3000/3024 33012KT P6SM BKN040 FM300500 32006KT P6SM BKN025 FM301900 33010KT P6SM SKC

flight Live Traffic

flight_takeoff 52 Departures
flight_land 54 Arrivals

Arrival

SFO KSFO MVFR

San Francisco International Airport

San Francisco, US

Local time
20:22 PDT
Timezone
America/Los_Angeles
Type
Large Airport
Elevation
13 ft
Coordinates
37.6198, -122.3748

cloud Weather

Wind
270° / 14 kt
Visibility
10 SM
Ceiling
FEW 300 ft, BKN 1,000 ft, BKN 3,500 ft
Temp / Dew
14°C / 11°C
Altimeter
30.09 inHg

Obs: 2026-05-30T02:56:00.000Z

Raw METAR / TAF 
METAR KSFO 300256Z 27014KT 10SM FEW003 BKN010 BKN035 14/11 A3009 RMK AO2 SLP188 T01390111 53002

TAF KSFO 300301Z 3003/3106 27012KT P6SM BKN013 FM300600 26010KT P6SM OVC009 FM300900 26005KT P6SM BKN012 FM301700 29010KT P6SM SKC FM302000 28018KT P6SM SKC

warning FAA Advisories

  • Ground Delay: low ceilings (avg 1 hour and 5 minutes)

flight Live Traffic

flight_takeoff 238 Departures
flight_land 258 Arrivals

Recent history last 2

DateAircraftRouteTakeoffLandingDurationDep ΔArr Δ
2026-05-18 A330A0 SJC → SFO May 18, 17:20 UTCMay 18, 21:05 UTC3h 44m - -
2026-04-20 A12734 SJC → SFO Apr 20, 00:00 UTCApr 20, 00:25 UTC25m - -

Performance history

Flights tracked
2
Avg arrival delay
-
On-time arrival
-
Aircraft used
2

Monthly activity 2 months

Month Flights tracked
May 2026 1
April 2026 1

UAL3863 frequently asked

Where does flight UAL3863 fly?
UAL3863 (United Airlines) flies from SJC to SFO. View the full route page.
How long is flight UAL3863?
Based on observed flights, UAL3863 takes on average 2h 5m from takeoff to landing.
How often does UAL3863 fly?
UAL3863 has been observed flying occasionally in our tracking data. We've recorded 2 flights under this callsign.
What aircraft operates flight UAL3863?
UAL3863 has been operated by 2 different aircraft in our records. Tail numbers are listed in the recent history below.
Can I track UAL3863 live?
Yes. When UAL3863 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.