Apparatus

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flight_takeoff Flight

UAL400

Operated by UAL

Live map

Live map filtered to UAL400. Shown when the flight is currently airborne.

Route airports View route page →

Departure

SFO KSFO VFR

San Francisco International Airport

San Francisco, US

Local time
05:47 PDT
Timezone
America/Los_Angeles
Type
Large Airport
Elevation
13 ft
Coordinates
37.6198, -122.3748

cloud Weather

Wind
300° / 5 kt
Visibility
10 SM
Ceiling
FEW 2,000 ft, FEW 9,000 ft
Temp / Dew
11°C / 7°C
Altimeter
29.84 inHg

Obs: 2026-10-12T11:56:00.000Z

Raw METAR / TAF 
METAR KSFO 121156Z 30005KT 10SM FEW020 FEW090 11/07 A2984 RMK AO2 SLP103 T01110067 10139 20106 53013 $

TAF KSFO 121120Z 1212/1318 26004KT P6SM FEW020 FEW090 FM122200 28012KT P6SM SKC FM130300 28006KT P6SM SKC

flight Live Traffic

flight_takeoff 115 Departures
flight_land 177 Arrivals

Arrival

AUS KAUS MVFR

Austin Bergstrom International Airport

Austin, US

Local time
07:47 CDT
Timezone
America/Chicago
Type
Large Airport
Elevation
542 ft
Coordinates
30.1975, -97.6620

cloud Weather

Wind
120° / 4 kt
Visibility
10 SM
Ceiling
SCT 2,000 ft, BKN 2,600 ft
Temp / Dew
22°C / 21°C
Altimeter
30.00 inHg

Obs: 2026-10-12T11:53:00.000Z

Raw METAR / TAF 
METAR KAUS 121153Z 12004KT 10SM SCT020 BKN026 22/21 A3000 RMK AO2 SLP148 T02220206 10228 20211 55002 $

TAF KAUS 121120Z 1212/1318 13003KT P6SM BKN035 OVC120 FM121230 15007KT P6SM BKN022 TEMPO 1213/1216 BKN018 FM121700 17011KT P6SM BKN035 PROB30 1218/1224 -TSRA BKN035CB FM130100 16008KT P6SM BKN050 FM130700 17008KT P6SM OVC015 TEMPO 1310/1313 BKN008

flight Live Traffic

flight_takeoff 243 Departures
flight_land 202 Arrivals

Recent history last 30

DateAircraftRouteTakeoffLandingDurationDep ΔArr Δ
2026-07-26 AAA58B AUS → IAD Jul 26, 20:25 UTCJul 26, 22:45 UTC2h 20m - -
2026-07-26 A12777 AUS → IAD Jul 26, 02:50 UTCJul 26, 07:45 UTC4h 56m - -
2026-07-26 A12777 AUS → IAD Jul 26, 02:45 UTCJul 26, 07:44 UTC4h 59m +20m -10m
2026-07-25 A61949 AUS → IAD Jul 25, 20:25 UTCJul 25, 23:45 UTC3h 20m - -
2026-07-25 A441EF AUS → IAD Jul 25, 03:05 UTCJul 25, 08:00 UTC4h 55m - -
2026-07-24 A5EA5C AUS → IAD Jul 24, 21:15 UTCJul 25, 00:40 UTC3h 25m - -
2026-07-23 A5FCEF AUS → IAD Jul 23, 21:55 UTCJul 24, 01:20 UTC3h 25m - -
2026-07-20 A61592 AUS → IAD Jul 20, 20:20 UTCJul 20, 23:45 UTC3h 25m - -
2026-07-20 A61592 AUS → IAD Jul 20, 20:26 UTCJul 20, 23:34 UTC3h 8m +14m -6m
2026-07-19 A5CC11 AUS → IAD Jul 19, 20:25 UTCJul 19, 23:45 UTC3h 20m - -
2026-07-19 A5D570 AUS → IAD Jul 19, 00:25 UTCJul 19, 03:25 UTC3h 0m - -
2026-07-18 A2B196 - Jul 18, 02:55 UTCJul 18, 07:55 UTC5h 0m - -
2026-07-18 A2B196 DEN → ANC Jul 18, 02:50 UTCJul 18, 07:49 UTC4h 59m +25m -18m
2026-07-17 A5DCDE - Jul 17, 20:25 UTCJul 17, 23:39 UTC3h 15m - -
2026-07-16 A5E44C - Jul 16, 20:39 UTCJul 16, 23:49 UTC3h 10m - -
2026-07-13 A59B5E - Jul 13, 20:25 UTCJul 13, 23:30 UTC3h 5m - -
2026-07-12 A2B12D - Jul 12, 21:05 UTCJul 13, 00:10 UTC3h 5m - -
2026-07-12 A123E3 - Jul 12, 02:50 UTCJul 12, 07:55 UTC5h 5m - -
2026-07-11 A5D570 - Jul 11, 20:35 UTCJul 11, 23:55 UTC3h 20m - -
2026-07-11 A44211 DEN → ANC Jul 11, 03:45 UTCJul 11, 08:35 UTC4h 50m - -
2026-07-11 A5FCEF - Jul 11, 01:50 UTCJul 11, 02:20 UTC30m - -
2026-07-10 A5FCEF - Jul 10, 20:35 UTCJul 11, 00:20 UTC3h 45m - -
2026-07-09 A61592 - Jul 9, 21:25 UTCJul 10, 01:40 UTC4h 15m - -
2026-07-06 A60814 - Jul 6, 20:50 UTCJul 7, 00:15 UTC3h 25m - -
2026-07-06 A60814 RIC → DEN Jul 6, 20:44 UTCJul 7, 00:12 UTC3h 28m +32m +12m
2026-07-05 A12778 - Jul 5, 20:55 UTCJul 6, 00:10 UTC3h 15m - -
2026-07-04 A0FBB7 DEN → ICT Jul 4, 20:18 UTCJul 4, 21:12 UTC54m +19m -11m
2026-07-04 A0FBB7 - Jul 4, 20:20 UTCJul 4, 21:15 UTC55m - -
2026-07-03 A53EE2 - Jul 3, 20:40 UTCJul 4, 00:15 UTC3h 35m - -
2026-07-03 A2B4EA DEN → ANC Jul 3, 02:45 UTCJul 3, 07:45 UTC5h 0m - -

Performance history

Flights tracked
118 showing last 30
Avg arrival delay
-7m
On-time arrival
100% 100% on time
Aircraft used
21

Monthly activity 4 months

Month Flights tracked
July 2026 31
June 2026 25
May 2026 37
April 2026 25

UAL400 frequently asked

Where does flight UAL400 fly?
UAL400 (UAL) flies from SFO to AUS. View the full route page.
How long is flight UAL400?
Based on observed flights, UAL400 takes on average 3h 30m from takeoff to landing.
How often does UAL400 fly?
UAL400 has been observed flying several times a week in our tracking data. We've recorded 118 flights under this callsign.
Is flight UAL400 usually on time?
Across recent flights, UAL400 arrives 7 minutes early on average. 100% of flights arrive within 15 minutes of schedule.
What aircraft operates flight UAL400?
UAL400 has been operated by 21 different aircraft in our records. Tail numbers are listed in the recent history below.
Can I track UAL400 live?
Yes. When UAL400 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.