Apparatus

Try JFK, AAL1290, BAW, or N225AN.

flight_takeoff Flight

UAL2123

Operated by United Airlines

Live map

Live map filtered to UAL2123. Shown when the flight is currently airborne.

Route airports View route page →

Departure

AUS KAUS VFR

Austin Bergstrom International Airport

Austin, US

Local time
13:41 CDT
Timezone
America/Chicago
Type
Large Airport
Elevation
542 ft
Coordinates
30.1975, -97.6620

cloud Weather

Wind
300° / 6 kt
Visibility
10 SM
Ceiling
FEW 6,000 ft, FEW 10,000 ft, SCT 20,000 ft
Temp / Dew
35°C / 19°C
Altimeter
30.04 inHg

Obs: 2026-08-28T17:53:00.000Z

Raw METAR / TAF 
METAR KAUS 281753Z 30006KT 10SM FEW060 FEW100 SCT200 35/19 A3004 RMK AO2 SLP159 ACC NE T03500194 10350 20244 58002

TAF KAUS 281736Z 2818/2924 VRB04KT P6SM SCT040 BKN250 FM282000 10007KT P6SM SCT040 BKN250 PROB30 2821/2824 VRB15G25KT 4SM TSRA BKN050CB FM290000 14008KT P6SM -SHRA SCT250 FM290200 19006KT P6SM SCT250 FM290600 VRB03KT P6SM SCT250 FM291600 19006KT P6SM SCT250

Arrival

SFO KSFO VFR

San Francisco International Airport

San Francisco, US

Local time
11:41 PDT
Timezone
America/Los_Angeles
Type
Large Airport
Elevation
13 ft
Coordinates
37.6198, -122.3748

cloud Weather

Wind
300° / 13 kt
Visibility
10 SM
Ceiling
FEW 400 ft, SCT 11,000 ft, OVC 20,000 ft
Temp / Dew
17°C / 14°C
Altimeter
30.02 inHg

Obs: 2026-08-28T17:56:00.000Z

Raw METAR / TAF 
METAR KSFO 281756Z 30013KT 10SM FEW004 SCT110 OVC200 17/14 A3002 RMK AO2 SLP164 60000 T01670139 10167 20150 51007

TAF KSFO 281739Z 2818/2924 30012KT P6SM VCSH BKN120 FM282000 29016KT P6SM VCSH BKN100 FM290700 29010KT P6SM FEW012 FM291000 29008KT P6SM SCT012 FM291800 29015KT P6SM FEW015

Recent history last 30

DateAircraftRouteTakeoffLandingDurationDep ΔArr Δ
2026-07-26 A0B802 AUS → SFO Jul 26, 03:20 UTCJul 26, 05:35 UTC2h 15m - -
2026-07-25 AA7E51 AUS → SFO Jul 25, 23:15 UTCJul 26, 00:30 UTC1h 15m - -
2026-07-25 A0B7B8 AUS → SFO Jul 25, 04:00 UTCJul 25, 06:20 UTC2h 20m - -
2026-07-24 A39FB1 AUS → SFO Jul 24, 23:05 UTCJul 25, 00:40 UTC1h 35m - -
2026-07-24 A6EDE5 AUS → SFO Jul 24, 04:45 UTCJul 24, 07:00 UTC2h 15m - -
2026-07-23 A0FBFA AUS → SFO Jul 23, 23:20 UTCJul 24, 00:40 UTC1h 20m - -
2026-07-23 A0FBFA AUS → SFO Jul 23, 23:15 UTCJul 24, 00:29 UTC1h 14m +51m +40m
2026-07-23 A0B801 AUS → SFO Jul 23, 05:00 UTCJul 23, 07:05 UTC2h 5m - -
2026-07-23 A0B801 AUS → SFO Jul 23, 04:49 UTCJul 23, 07:04 UTC2h 15m +99m +21m
2026-07-23 A9D59F AUS → SFO Jul 23, 02:15 UTCJul 23, 03:40 UTC1h 25m - -
2026-07-21 A9D59F AUS → SFO Jul 21, 23:05 UTCJul 22, 00:20 UTC1h 15m - -
2026-07-21 A6ED7F AUS → SFO Jul 21, 04:15 UTCJul 21, 06:20 UTC2h 5m - -
2026-07-20 AA56D5 AUS → SFO Jul 20, 22:40 UTCJul 21, 00:00 UTC1h 20m - -
2026-07-20 A0B88A AUS → SFO Jul 20, 03:29 UTCJul 20, 05:33 UTC2h 4m +19m -9m
2026-07-20 A0B88A AUS → SFO Jul 20, 03:30 UTCJul 20, 05:35 UTC2h 5m - -
2026-07-20 AA568E AUS → SFO Jul 20, 00:10 UTCJul 20, 01:20 UTC1h 10m - -
2026-07-19 AD22E1 AUS → SFO Jul 19, 03:45 UTCJul 19, 05:50 UTC2h 5m - -
2026-07-18 A6E258 AUS → SFO Jul 18, 22:35 UTCJul 18, 23:50 UTC1h 15m - -
2026-07-18 A0B88B AUS → SFO Jul 18, 03:55 UTCJul 18, 06:05 UTC2h 10m - -
2026-07-17 A0ACB6 AUS → SFO Jul 17, 22:35 UTCJul 17, 23:55 UTC1h 20m - -
2026-07-17 A0B840 DEN → SFO Jul 17, 04:29 UTCJul 17, 06:35 UTC2h 5m - -
2026-07-16 AA56B8 - Jul 16, 22:49 UTCJul 17, 00:04 UTC1h 15m - -
2026-07-16 A0B81D - Jul 16, 03:55 UTCJul 16, 06:00 UTC2h 5m - -
2026-07-15 A1235B - Jul 15, 22:35 UTCJul 15, 23:50 UTC1h 15m - -
2026-07-15 A0B7FA DEN → SFO Jul 15, 03:29 UTCJul 15, 05:42 UTC2h 13m +19m -10m
2026-07-15 A0B7FA DEN → SFO Jul 15, 03:45 UTCJul 15, 05:50 UTC2h 5m - -
2026-07-14 A3A0CC - Jul 14, 22:50 UTCJul 15, 00:05 UTC1h 15m - -
2026-07-14 A0B803 - Jul 14, 04:15 UTCJul 14, 06:25 UTC2h 10m - -
2026-07-14 A0B803 DEN → SFO Jul 14, 04:19 UTCJul 14, 06:23 UTC2h 4m +69m +41m
2026-07-13 AA56F8 - Jul 13, 22:40 UTCJul 14, 00:00 UTC1h 20m - -

Performance history

Flights tracked
227 showing last 30
Avg arrival delay
+17m
On-time arrival
40% 40% on time
Aircraft used
24

Monthly activity 4 months

Month Flights tracked
July 2026 61
June 2026 50
May 2026 64
April 2026 52

UAL2123 frequently asked

Where does flight UAL2123 fly?
UAL2123 (United Airlines) flies from AUS to SFO. View the full route page.
How long is flight UAL2123?
Based on observed flights, UAL2123 takes on average 1h 45m from takeoff to landing.
How often does UAL2123 fly?
UAL2123 has been observed flying several times a week in our tracking data. We've recorded 227 flights under this callsign.
Is flight UAL2123 usually on time?
Across recent flights, UAL2123 arrives with an average 17-minute delay. 40% of flights arrive within 15 minutes of schedule.
What aircraft operates flight UAL2123?
UAL2123 has been operated by 24 different aircraft in our records. Tail numbers are listed in the recent history below.
Can I track UAL2123 live?
Yes. When UAL2123 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.