Apparatus

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flight_takeoff Flight

UAL1399

Operated by United Airlines

Live map

Live map filtered to UAL1399. 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
18:23 PDT
Timezone
America/Los_Angeles
Type
Large Airport
Elevation
125 ft
Coordinates
33.9425, -118.4080

cloud Weather

Wind
250° / 13 kt
Visibility
10 SM
Ceiling
FEW 10,000 ft, SCT 15,000 ft, BKN 26,000 ft
Temp / Dew
27°C / 19°C
Altimeter
29.82 inHg

Obs: 2026-08-29T00:53:00.000Z

Raw METAR / TAF 
METAR KLAX 290053Z 25013KT 10SM FEW100 SCT150 BKN260 27/19 A2982 RMK AO2 SLP097 T02720194 $

TAF KLAX 282347Z 2900/3006 26015KT P6SM FEW150 BKN250 FM290300 26006KT P6SM SCT250 FM290700 VRB03KT P6SM SCT250 FM291700 26008KT P6SM SCT250 FM291900 26012KT P6SM BKN150 FM300500 26006KT P6SM SCT250

flight Live Traffic

flight_takeoff 189 Departures
flight_land 268 Arrivals

Arrival

SFO KSFO VFR

San Francisco International Airport

San Francisco, US

Local time
18:23 PDT
Timezone
America/Los_Angeles
Type
Large Airport
Elevation
13 ft
Coordinates
37.6198, -122.3748

cloud Weather

Wind
270° / 15 kt
Visibility
10 SM
Ceiling
FEW 500 ft, SCT 15,000 ft, BKN 20,000 ft
Temp / Dew
18°C / 13°C
Altimeter
29.98 inHg

Obs: 2026-08-29T00:56:00.000Z

Raw METAR / TAF 
METAR KSFO 290056Z 27015KT 10SM FEW005 SCT150 BKN200 18/13 A2998 RMK AO2 SLP152 T01780128 $

TAF KSFO 282335Z 2900/3006 28016KT P6SM VCSH FEW012 BKN150 FM290300 28014KT P6SM FEW012 TEMPO 2904/2908 BKN012 FM290800 29008KT P6SM OVC012 FM291800 29015G25KT P6SM FEW015 FM300400 27015KT P6SM SCT010

flight Live Traffic

flight_takeoff 195 Departures
flight_land 169 Arrivals

Recent history last 30

DateAircraftRouteTakeoffLandingDurationDep ΔArr Δ
2026-07-26 A12AA1 LAX → SFO Jul 26, 03:25 UTCJul 26, 05:45 UTC2h 20m - -
2026-07-25 A41E94 LAX → SFO Jul 25, 03:00 UTCJul 25, 05:35 UTC2h 35m - -
2026-07-24 A2B153 LAX → SFO Jul 24, 02:08 UTCJul 24, 04:45 UTC2h 37m +25m +4m
2026-07-24 A2B153 LAX → SFO Jul 24, 02:15 UTCJul 24, 04:45 UTC2h 30m - -
2026-07-23 A8D5A4 LAX → SFO Jul 23, 03:00 UTCJul 23, 05:45 UTC2h 45m - -
2026-07-21 A2B196 LAX → SFO Jul 21, 02:15 UTCJul 21, 04:50 UTC2h 35m - -
2026-07-21 A2B196 LAX → SFO Jul 21, 02:08 UTCJul 21, 04:55 UTC2h 47m +25m +9m
2026-07-20 A1272D EWR → MCI Jul 20, 03:15 UTCJul 20, 05:52 UTC2h 37m +92m -24m
2026-07-20 A1272D - Jul 20, 03:35 UTCJul 20, 05:55 UTC2h 20m - -
2026-07-19 A445A4 - Jul 19, 03:15 UTCJul 19, 05:45 UTC2h 30m - -
2026-07-18 A12798 - Jul 18, 02:25 UTCJul 18, 04:55 UTC2h 31m - -
2026-07-17 A12797 - Jul 17, 02:30 UTCJul 17, 04:44 UTC2h 15m - -
2026-07-16 A8FC2E EWR → MCI Jul 16, 04:45 UTCJul 16, 06:44 UTC1h 59m +182m -4m
2026-07-16 A8FC2E - Jul 16, 04:30 UTCJul 16, 06:45 UTC2h 15m - -
2026-07-15 A12AEA - Jul 15, 01:55 UTCJul 15, 04:05 UTC2h 10m - -
2026-07-14 A126C3 - Jul 14, 01:55 UTCJul 14, 04:05 UTC2h 10m - -
2026-07-13 A1272F - Jul 13, 10:45 UTCJul 13, 13:00 UTC2h 15m - -
2026-07-12 AA7EC3 EWR → MCI Jul 12, 02:08 UTCJul 12, 04:35 UTC2h 27m +25m -3m
2026-07-12 AA7EC3 - Jul 12, 02:05 UTCJul 12, 02:45 UTC40m - -
2026-07-11 A123E3 - Jul 11, 02:20 UTCJul 11, 04:55 UTC2h 35m - -
2026-07-10 A123E3 - Jul 10, 03:55 UTCJul 10, 06:15 UTC2h 20m - -
2026-07-09 A9238A - Jul 9, 02:10 UTCJul 9, 04:35 UTC2h 25m - -
2026-07-08 AA7EC2 - Jul 8, 02:30 UTCJul 8, 04:55 UTC2h 25m - -
2026-07-07 A1270F - Jul 7, 02:50 UTCJul 7, 05:20 UTC2h 30m - -
2026-07-06 A12758 - Jul 6, 07:00 UTCJul 6, 09:20 UTC2h 20m - -
2026-07-04 A1270F - Jul 4, 04:35 UTCJul 4, 06:55 UTC2h 20m - -
2026-07-03 A12735 - Jul 3, 02:40 UTCJul 3, 04:55 UTC2h 15m - -
2026-07-03 A12735 EWR → MCI Jul 3, 02:35 UTCJul 3, 04:54 UTC2h 19m +52m -14m
2026-07-02 A2E045 EWR → MCI Jul 2, 02:08 UTCJul 2, 04:36 UTC2h 28m +25m -24m
2026-07-02 A2E045 - Jul 2, 02:20 UTCJul 2, 04:40 UTC2h 20m - -

Performance history

Flights tracked
148 showing last 30
Avg arrival delay
-8m
On-time arrival
100% 100% on time
Aircraft used
21

Monthly activity 4 months

Month Flights tracked
July 2026 31
June 2026 38
May 2026 59
April 2026 20

UAL1399 frequently asked

Where does flight UAL1399 fly?
UAL1399 (United Airlines) flies from LAX to SFO. View the full route page.
How long is flight UAL1399?
Based on observed flights, UAL1399 takes on average 2h 21m from takeoff to landing.
How often does UAL1399 fly?
UAL1399 has been observed flying several times a week in our tracking data. We've recorded 148 flights under this callsign.
Is flight UAL1399 usually on time?
Across recent flights, UAL1399 arrives 8 minutes early on average. 100% of flights arrive within 15 minutes of schedule.
What aircraft operates flight UAL1399?
UAL1399 has been operated by 21 different aircraft in our records. Tail numbers are listed in the recent history below.
Can I track UAL1399 live?
Yes. When UAL1399 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.