Apparatus

Try JFK, AAL1290, BAW, or N225AN.

flight_takeoff Flight

UAL28D

Operated by United Airlines

Live map

Live map filtered to UAL28D. Shown when the flight is currently airborne.

Route airports View route page →

Departure

SIN WSSS VFR

Singapore Changi Airport

Singapore, SG

Local time
11:25 GMT+8
Timezone
Asia/Singapore
Type
Large Airport
Elevation
22 ft
Coordinates
1.3502, 103.9940

cloud Weather

Wind
300° / 4 kt
Visibility
6 SM
Ceiling
FEW 1,800 ft, BKN 16,000 ft
Temp / Dew
28°C / 24°C
Altimeter
29.88 inHg

Obs: 2026-05-30T03:00:00.000Z

Raw METAR / TAF 
METAR WSSS 300300Z 30004KT 250V340 9999 FEW018 BKN160 28/24 Q1012 NOSIG

TAF WSSS 292300Z 3000/3106 20007KT 9999 FEW015 SCT020

flight Live Traffic

flight_takeoff 5 Departures
flight_land 4 Arrivals

Arrival

SFO KSFO MVFR

San Francisco International Airport

San Francisco, US

Local time
20:25 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 3

DateAircraftRouteTakeoffLandingDurationDep ΔArr Δ
2026-05-14 A31A34 SIN → SFO May 14, 23:45 UTCMay 15, 12:50 UTC13h 5m - -
2026-04-30 A2CB33 SIN → SFO Apr 30, 13:40 UTCApr 30, 14:15 UTC35m - -
2026-04-30 A2CB33 SIN → SFO Apr 30, 09:45 UTCApr 30, 10:05 UTC20m - -

Performance history

Flights tracked
3
Avg arrival delay
-
On-time arrival
-
Aircraft used
2

Monthly activity 2 months

Month Flights tracked
May 2026 1
April 2026 2

UAL28D frequently asked

Where does flight UAL28D fly?
UAL28D (United Airlines) flies from SIN to SFO. View the full route page.
How long is flight UAL28D?
Based on observed flights, UAL28D takes on average 4h 40m from takeoff to landing.
How often does UAL28D fly?
UAL28D has been observed flying occasionally in our tracking data. We've recorded 3 flights under this callsign.
What aircraft operates flight UAL28D?
UAL28D has been operated by 2 different aircraft in our records. Tail numbers are listed in the recent history below.
Can I track UAL28D live?
Yes. When UAL28D 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.