Apparatus

Try JFK, AAL1290, BAW, or N225AN.

flight_takeoff Flight

UAL839

Operated by United Airlines

Live map

Live map filtered to UAL839. Shown when the flight is currently airborne.

Route airports View route page →

Departure

LAX KLAX VFR

Los Angeles International Airport

Los Angeles, US

Local time
09:46 PDT
Timezone
America/Los_Angeles
Type
Large Airport
Elevation
125 ft
Coordinates
33.9425, -118.4080

cloud Weather

Wind
110° / 7 kt
Visibility
10 SM
Ceiling
SCT 2,600 ft, BKN 5,500 ft
Temp / Dew
16°C / 13°C
Altimeter
29.89 inHg

Obs: 2026-10-12T15:53:00.000Z

Raw METAR / TAF 
METAR KLAX 121553Z COR 11007KT 10SM SCT026 BKN055 16/13 A2989 RMK AO2 SLP120 T01610128 $

TAF KLAX 121458Z 1215/1318 12007KT P6SM SCT025 BKN050 TEMPO 1215/1216 5SM -SHRA FM121800 24012KT P6SM SCT035 FM130100 26010KT P6SM SKC FM130800 23005KT P6SM SKC

warning FAA Advisories

  • Closed: !LAX 05/277 LAX AD AP CLSD TO NON SKED TRANSIENT GA ACFT EXC 24HR PPR CTC ATLANTIC AVIATION 310-258-9884 OR SIGNATURE AVIATION 310-410-9605 2605271826-2705281600 (May 27 at 18:26 UTC. – May 28 at 16:00 UTC.)

flight Live Traffic

flight_takeoff 243 Departures
flight_land 307 Arrivals

Arrival

SYD YSSY MVFR

Sydney Kingsford Smith International Airport

Sydney (Mascot), AU

Local time
03:46 GMT+11
Timezone
Australia/Sydney
Type
Large Airport
Elevation
21 ft
Coordinates
-33.9461, 151.1770

cloud Weather

Wind
200° / 9 kt
Visibility
4.97 SM
Ceiling
FEW 2,100 ft, BKN 11,000 ft
Temp / Dew
19°C / 18°C
Altimeter
30.00 inHg
Wx
-RA

Obs: 2026-10-12T16:30:00.000Z

Raw METAR / TAF 
METAR YSSY 121630Z AUTO 20009KT 8000 -RA FEW021 BKN110 19/18 Q1016 RERA

TAF YSSY 121418Z 1215/1318 19018G28KT 9999 -RA SCT008 BKN016 FM121600 18014KT 9999 -RA SCT004 BKN013 BECMG 1223/1301 15014KT 9999 -SHRA BKN020 FM131300 17019KT 9999 -SHRA BKN020 TEMPO 1215/1223 18015G25KT 3000 RA BKN004 FEW070TCU TEMPO 1223/1303 5000 SHRA SCT008 BKN013 INTER 1223/1303 17015G25KT 3000 SHRA BKN008 INTER 1303/1318 5000 SHRA BKN013

flight Live Traffic

flight_takeoff 5 Departures
flight_land 8 Arrivals

Recent history last 30

DateAircraftRouteTakeoffLandingDurationDep ΔArr Δ
2026-07-26 A18CBB LAX → SYD Jul 26, 06:10 UTCJul 26, 20:40 UTC14h 31m - -
2026-07-25 A43100 LAX → SYD Jul 25, 06:55 UTCJul 25, 21:05 UTC14h 10m - -
2026-07-24 A254DA LAX → SYD Jul 24, 07:25 UTCJul 24, 21:55 UTC14h 30m - -
2026-07-23 A31A76 LAX → SYD Jul 23, 06:30 UTCJul 23, 21:00 UTC14h 30m - -
2026-07-23 A31A76 LAX → SYD Jul 23, 06:24 UTCJul 23, 20:51 UTC14h 27m +39m -2m
2026-07-22 A31A50 LAX → SYD Jul 22, 19:00 UTCJul 22, 22:00 UTC3h 0m - -
2026-07-22 A31A50 LAX → SYD Jul 22, 07:24 UTCJul 22, 21:58 UTC14h 34m +99m -1m
2026-07-21 A254F7 - Jul 21, 07:00 UTCJul 21, 07:20 UTC20m - -
2026-07-21 A254F7 LAX → SYD Jul 21, 06:39 UTCJul 21, 21:18 UTC14h 39m +54m -12m
2026-07-20 A22D7B - Jul 20, 07:15 UTCJul 20, 21:30 UTC14h 15m - -
2026-07-19 A2A41E - Jul 19, 06:40 UTCJul 19, 20:50 UTC14h 10m - -
2026-07-19 A2A41E LAX → SYD Jul 19, 06:09 UTCJul 19, 20:49 UTC14h 40m +24m -39m
2026-07-18 A47FD9 - Jul 18, 06:50 UTCJul 18, 20:40 UTC13h 50m - -
2026-07-17 A254FF - Jul 17, 21:34 UTCJul 17, 21:39 UTC5m - -
2026-07-17 A254FF - Jul 17, 07:14 UTCJul 17, 07:50 UTC35m - -
2026-07-17 A254FF LAX → SYD Jul 17, 06:24 UTCJul 17, 21:15 UTC14h 51m +39m -82m
2026-07-16 A31A76 - Jul 16, 07:25 UTCJul 16, 21:50 UTC14h 25m - -
2026-07-15 A254DD - Jul 15, 07:05 UTCJul 15, 21:05 UTC14h 0m - -
2026-07-14 A18D29 - Jul 14, 06:55 UTCJul 14, 21:10 UTC14h 15m - -
2026-07-14 A18D29 LAX → SYD Jul 14, 06:09 UTCJul 14, 20:58 UTC14h 49m +24m -59m
2026-07-13 A2CB9E - Jul 13, 06:40 UTCJul 13, 21:05 UTC14h 25m - -
2026-07-12 A254DA - Jul 12, 06:35 UTCJul 12, 20:40 UTC14h 5m - -
2026-07-11 A18CBB - Jul 11, 07:40 UTCJul 11, 21:50 UTC14h 10m - -
2026-07-10 A47FDE - Jul 10, 06:20 UTCJul 10, 20:35 UTC14h 15m - -
2026-07-08 A2061E - Jul 8, 06:45 UTCJul 8, 21:10 UTC14h 25m - -
2026-07-07 A22D7B - Jul 7, 07:00 UTCJul 7, 22:00 UTC15h 0m - -
2026-07-06 A31A76 - Jul 6, 06:30 UTCJul 6, 20:50 UTC14h 20m - -
2026-07-05 A18D29 - Jul 5, 06:40 UTCJul 5, 07:10 UTC30m - -
2026-07-05 A18D29 LAX → SYD Jul 5, 06:41 UTCJul 5, 21:10 UTC14h 29m +56m +3m
2026-07-04 A2F2FA LAX → SYD Jul 4, 06:00 UTCJul 4, 21:15 UTC15h 15m - -

Performance history

Flights tracked
156 showing last 30
Avg arrival delay
-27m
On-time arrival
100% 100% on time
Aircraft used
16

Monthly activity 4 months

Month Flights tracked
July 2026 35
June 2026 47
May 2026 45
April 2026 29

UAL839 frequently asked

Where does flight UAL839 fly?
UAL839 (United Airlines) flies from LAX to SYD. View the full route page.
How long is flight UAL839?
Based on observed flights, UAL839 takes on average 12h 11m from takeoff to landing.
How often does UAL839 fly?
UAL839 has been observed flying several times a week in our tracking data. We've recorded 156 flights under this callsign.
Is flight UAL839 usually on time?
Across recent flights, UAL839 arrives 27 minutes early on average. 100% of flights arrive within 15 minutes of schedule.
What aircraft operates flight UAL839?
UAL839 has been operated by 16 different aircraft in our records. Tail numbers are listed in the recent history below.
Can I track UAL839 live?
Yes. When UAL839 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.