Apparatus

Try JFK, AAL1290, BAW, or N225AN.

flight_takeoff Flight

UAL143

Operated by United Airlines

Live map

Live map filtered to UAL143. Shown when the flight is currently airborne.

Route airports View route page →

Departure

DEN KDEN VFR

Denver International Airport

Denver, US

Local time
08:06 MDT
Timezone
America/Denver
Type
Large Airport
Elevation
5,431 ft
Coordinates
39.8600, -104.6738

cloud Weather

Wind
220° / 7 kt
Visibility
10 SM
Ceiling
FEW 8,000 ft, FEW 12,000 ft
Temp / Dew
16°C / 1°C
Altimeter
29.86 inHg

Obs: 2026-10-12T13:53:00.000Z

Raw METAR / TAF 
METAR KDEN 121353Z 22007KT 10SM FEW080 FEW120 16/01 A2986 RMK AO2 SLP034 T01610006

TAF KDEN 121136Z 1212/1318 20015KT P6SM SKC FM121600 23014G21KT P6SM SKC FM130100 18009KT P6SM SKC FM130500 35010KT P6SM FEW020 SCT040 FM131000 02008KT P6SM BKN020 FM131600 05007KT P6SM FEW020 BKN040

flight Live Traffic

flight_takeoff 233 Departures
flight_land 397 Arrivals

Arrival

NRT RJAA MVFR

Narita International Airport

Narita, JP

Local time
23:06 GMT+9
Timezone
Asia/Tokyo
Type
Large Airport
Elevation
141 ft
Coordinates
35.7686, 140.3887

cloud Weather

Wind
10° / 12 kt
Visibility
6 SM
Ceiling
BKN 1,100 ft, BKN 1,300 ft
Temp / Dew
19°C / 17°C
Altimeter
30.06 inHg

Obs: 2026-10-12T13:30:00.000Z

Raw METAR / TAF 
METAR RJAA 121330Z 01012KT 9999 BKN011 BKN013 19/17 Q1018 NOSIG

TAF RJAA 121105Z 1212/1318 36012KT 9999 FEW005 BKN012 TEMPO 1309/1315 FEW005 BKN008 TEMPO 1315/1318 2000 BR FEW001 BKN003

flight Live Traffic

flight_takeoff 25 Departures
flight_land 7 Arrivals

Recent history last 30

DateAircraftRouteTakeoffLandingDurationDep ΔArr Δ
2026-07-26 A596B1 DEN → NRT Jul 26, 18:10 UTCJul 26, 20:30 UTC2h 20m - -
2026-07-25 A2061E DEN → NRT Jul 25, 18:10 UTCJul 26, 05:35 UTC11h 25m - -
2026-07-25 A126C6 DEN → NRT Jul 25, 08:05 UTCJul 25, 12:15 UTC4h 10m - -
2026-07-25 A126C6 DEN → NRT Jul 25, 08:12 UTCJul 25, 12:08 UTC3h 56m +17m -19m
2026-07-24 A31A7B DEN → NRT Jul 24, 18:00 UTCJul 25, 05:10 UTC11h 10m - -
2026-07-23 A2CB32 DEN → NRT Jul 23, 18:00 UTCJul 24, 05:00 UTC11h 0m - -
2026-07-22 A254D8 DEN → NRT Jul 22, 18:10 UTCJul 23, 05:10 UTC11h 0m - -
2026-07-22 A254D8 DEN → NRT Jul 22, 18:04 UTCJul 23, 05:10 UTC11h 6m +24m +24m
2026-07-22 A2B416 - Jul 22, 12:05 UTCJul 22, 12:35 UTC30m - -
2026-07-21 A31A96 DEN → NRT Jul 21, 18:04 UTCJul 22, 05:06 UTC11h 2m +24m -3m
2026-07-21 A31A96 - Jul 21, 18:05 UTCJul 21, 20:25 UTC2h 20m - -
2026-07-20 A4095F - Jul 20, 18:10 UTCJul 21, 05:35 UTC11h 24m - -
2026-07-19 A2A3D2 - Jul 19, 20:10 UTCJul 20, 07:20 UTC11h 10m - -
2026-07-18 A2551D - Jul 18, 18:30 UTCJul 19, 05:30 UTC11h 0m - -
2026-07-18 A1270B - Jul 18, 08:05 UTCJul 18, 08:40 UTC35m - -
2026-07-18 A1270B NRT → ROR Jul 18, 08:12 UTCJul 18, 12:06 UTC3h 54m +17m -6m
2026-07-17 A254D8 DEN → NRT Jul 17, 18:04 UTCJul 18, 04:48 UTC10h 44m +24m +4m
2026-07-17 A254D8 DEN → NRT Jul 17, 18:05 UTCJul 18, 04:50 UTC10h 46m - -
2026-07-16 A31A77 DEN → NRT Jul 16, 18:00 UTCJul 17, 05:04 UTC11h 5m - -
2026-07-15 A254D7 DEN → NRT Jul 15, 18:00 UTCJul 16, 05:00 UTC11h 0m - -
2026-07-15 A1270B - Jul 15, 08:40 UTCJul 15, 12:30 UTC3h 50m - -
2026-07-14 A31A96 DEN → NRT Jul 14, 18:08 UTCJul 15, 05:18 UTC11h 10m +28m -10m
2026-07-14 A31A96 - Jul 14, 18:20 UTCJul 15, 05:20 UTC10h 59m - -
2026-07-13 A2551D DEN → NRT Jul 13, 18:04 UTCJul 14, 05:19 UTC11h 15m +24m +11m
2026-07-13 A2551D DEN → NRT Jul 13, 18:05 UTCJul 14, 05:25 UTC11h 20m - -
2026-07-12 A4095F - Jul 12, 18:05 UTCJul 13, 05:05 UTC11h 0m - -
2026-07-11 A254FF DEN → NRT Jul 11, 19:40 UTCJul 12, 06:45 UTC11h 5m - -
2026-07-11 A1270B - Jul 11, 08:50 UTCJul 11, 12:45 UTC3h 55m - -
2026-07-11 A1270B DEN → NRT Jul 11, 08:42 UTCJul 11, 12:38 UTC3h 56m -538m -15m
2026-07-10 A254F7 DEN → NRT Jul 10, 18:04 UTCJul 11, 05:22 UTC11h 18m +24m -4m

Performance history

Flights tracked
191 showing last 30
Avg arrival delay
-2m
On-time arrival
89% 89% on time
Aircraft used
16

Monthly activity 4 months

Month Flights tracked
July 2026 46
June 2026 45
May 2026 57
April 2026 43

UAL143 frequently asked

Where does flight UAL143 fly?
UAL143 (United Airlines) flies from DEN to NRT. View the full route page.
How long is flight UAL143?
Based on observed flights, UAL143 takes on average 8h 23m from takeoff to landing.
How often does UAL143 fly?
UAL143 has been observed flying several times a week in our tracking data. We've recorded 191 flights under this callsign.
Is flight UAL143 usually on time?
Across recent flights, UAL143 arrives 2 minutes early on average. 89% of flights arrive within 15 minutes of schedule.
What aircraft operates flight UAL143?
UAL143 has been operated by 16 different aircraft in our records. Tail numbers are listed in the recent history below.
Can I track UAL143 live?
Yes. When UAL143 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.