Apparatus

Try JFK, AAL1290, BAW, or N225AN.

flight_takeoff Flight

UAL28

Operated by United Airlines

Live map

Live map filtered to UAL28. Shown when the flight is currently airborne.

Route airports View route page →

Departure

SIN WSSS VFR

Singapore Changi Airport

Singapore, SG

Local time
16:09 GMT+8
Timezone
Asia/Singapore
Type
Large Airport
Elevation
22 ft
Coordinates
1.3502, 103.9940

cloud Weather

Wind
180° / 9 kt
Visibility
6 SM
Ceiling
FEW 2,000 ft, BKN 27,000 ft
Temp / Dew
31°C / 23°C
Altimeter
29.76 inHg

Obs: 2026-05-30T08:00:00.000Z

Raw METAR / TAF 
METAR WSSS 300800Z 18009KT 9999 FEW020 BKN270 31/23 Q1008 NOSIG

TAF WSSS 300500Z 3006/3112 20007KT 9999 FEW015 SCT020

flight Live Traffic

flight_takeoff 1 Departures
flight_land 5 Arrivals

Arrival

SFO KSFO MVFR

San Francisco International Airport

San Francisco, US

Local time
01:09 PDT
Timezone
America/Los_Angeles
Type
Large Airport
Elevation
13 ft
Coordinates
37.6198, -122.3748

cloud Weather

Wind
280° / 9 kt
Visibility
10 SM
Ceiling
OVC 1,000 ft
Temp / Dew
13°C / 11°C
Altimeter
30.11 inHg

Obs: 2026-05-30T07:56:00.000Z

Raw METAR / TAF 
METAR KSFO 300756Z 28009KT 10SM OVC010 13/11 A3011 RMK AO2 SLP196 T01280106 401720122

TAF KSFO 300520Z 3006/3112 26009KT P6SM OVC008 FM301000 27006KT P6SM OVC012 FM301800 28012KT P6SM SKC FM302300 27022KT P6SM SKC FM310600 28012KT P6SM SKC

flight Live Traffic

flight_takeoff 208 Departures
flight_land 144 Arrivals

Recent history last 30

DateAircraftRouteTakeoffLandingDurationDep ΔArr Δ
2026-05-29 A2A3D2 SIN → SFO May 29, 14:45 UTCMay 30, 04:25 UTC13h 40m - -
2026-05-28 A0EEEA SIN → SFO May 28, 14:55 UTCMay 29, 04:35 UTC13h 40m - -
2026-05-27 A27C78 SIN → SFO May 27, 15:00 UTCMay 28, 04:35 UTC13h 35m - -
2026-05-27 A27C78 SIN → SFO May 27, 13:37 UTCMay 28, 04:29 UTC14h 52m +62m +5m
2026-05-26 A31A96 SIN → SFO May 26, 15:09 UTCMay 27, 04:39 UTC13h 30m - -
2026-05-25 A2CB13 SIN → SFO May 25, 15:30 UTCMay 26, 04:20 UTC12h 49m - -
2026-05-24 A0EEEA SIN → SFO May 24, 15:35 UTCMay 25, 03:50 UTC12h 15m - -
2026-05-23 A31A76 SIN → SFO May 23, 15:30 UTCMay 24, 04:05 UTC12h 36m - -
2026-05-23 A31A76 SIN → SFO May 23, 13:26 UTCMay 24, 04:00 UTC14h 34m +51m -2m
2026-05-22 A2CB13 SIN → SFO May 22, 16:10 UTCMay 23, 04:25 UTC12h 15m - -
2026-05-22 A254D7 SIN → SFO May 22, 04:10 UTCMay 22, 04:15 UTC5m - -
2026-05-21 A254D7 SIN → SFO May 21, 16:15 UTCMay 21, 16:55 UTC40m - -
2026-05-21 A254D7 SIN → SFO May 21, 13:21 UTCMay 22, 03:51 UTC14h 30m +46m +23m
2026-05-20 A31A96 SIN → SFO May 20, 15:50 UTCMay 21, 03:40 UTC11h 50m - -
2026-05-19 A254DA SIN → SFO May 19, 13:06 UTCMay 20, 03:36 UTC14h 30m +31m -1m
2026-05-19 A254DA SIN → SFO May 19, 15:55 UTCMay 20, 03:45 UTC11h 50m - -
2026-05-18 A2CB32 SIN → SFO May 18, 13:06 UTCMay 19, 03:56 UTC14h 50m +31m -2m
2026-05-18 A2CB32 SIN → SFO May 18, 15:00 UTCMay 19, 04:10 UTC13h 9m - -
2026-05-17 A254DD SIN → SFO May 17, 17:55 UTCMay 18, 06:10 UTC12h 15m - -
2026-05-17 A254DD SIN → SFO May 17, 15:40 UTCMay 17, 15:50 UTC10m - -
2026-05-17 A254DD SIN → SFO May 17, 15:31 UTCMay 18, 06:05 UTC14h 34m +176m -23m
2026-05-16 A2CB32 SIN → SFO May 16, 15:25 UTCMay 17, 03:50 UTC12h 25m - -
2026-05-16 A2CB32 SIN → SFO May 16, 13:55 UTCMay 16, 14:05 UTC10m - -
2026-05-16 A2CB32 SIN → SFO May 16, 14:01 UTCMay 17, 03:43 UTC13h 42m +86m +6m
2026-05-14 A2CB32 SIN → SFO May 14, 05:55 UTCMay 14, 16:55 UTC11h 0m - -
2026-05-12 A27C78 SIN → SFO May 12, 15:40 UTCMay 13, 04:45 UTC13h 5m - -
2026-05-11 A2CB32 SIN → SFO May 11, 15:25 UTCMay 11, 16:10 UTC45m - -
2026-05-11 A2CB32 SIN → SFO May 11, 13:11 UTCMay 12, 03:59 UTC14h 48m +36m -11m
2026-05-11 A2CB32 SIN → SFO May 11, 13:11 UTCMay 12, 03:59 UTC14h 48m +36m -11m
2026-05-10 A254DA SIN → SFO May 10, 08:54 UTCMay 11, 03:10 UTC18h 15m - -

Performance history

Flights tracked
82 showing last 30
Avg arrival delay
-2m
On-time arrival
89% 89% on time
Aircraft used
10

Monthly activity 2 months

Month Flights tracked
May 2026 44
April 2026 38

UAL28 frequently asked

Where does flight UAL28 fly?
UAL28 (United Airlines) flies from SIN to SFO. View the full route page.
How long is flight UAL28?
Based on observed flights, UAL28 takes on average 11h 22m from takeoff to landing.
How often does UAL28 fly?
UAL28 has been observed flying several times a week in our tracking data. We've recorded 82 flights under this callsign.
Is flight UAL28 usually on time?
Across recent flights, UAL28 arrives 2 minutes early on average. 89% of flights arrive within 15 minutes of schedule.
What aircraft operates flight UAL28?
UAL28 has been operated by 10 different aircraft in our records. Tail numbers are listed in the recent history below.
Can I track UAL28 live?
Yes. When UAL28 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.