YAFT.LIVE

UAL143

DEN → NRT · Boeing 787-9 · United Airlines

Flight

Status
Completed
Arrival confirmed via
ADS-B (ground reading)
Departure
Denver International Airport (DEN) — Denver, United States
Departed
2026-09-19 04:04 UTC (approx.)
Arrival
Narita International Airport (NRT) — Tokyo / Narita, Japan
Distance flown
475 km
Straight-line distance
9293 km
Approach distance
136 km

Aircraft

Registration
N27997
Type
Boeing 787-9
Seats
257 total (149 Economy, 39 Economy Plus, 21 Premium Plus, 48 Polaris) (typical for type, not this tail)

Altitude & speed

Max altitude
39,225 ft
Max ground speed
461 kt
Tracked
56m · 468 km
Altitude (ft, max 39,225)
021,18242,3630m30m
Ground speed (kt, max 461)
02494980m30m
Altitude (ft, max 39,225)
021,18242,3630m
Ground speed (kt, max 461)
02494980m

From the ADS-B positions we received; time since the first fix. A dashed stretch is a gap in reception, bridged by a straight line.

Route map

Airline

United Airlines (UAL)

Latest flights

DepartedFlightRouteRegAircraftStatusDistance
2026-10-02 05:52 UTC UAL143 DEN → NRT
Denver → Tokyo / Narita
 N26960 Boeing 787-9 Completed 446 km
2026-10-01 18:25 UTC UAL143 DEN → NRT
Denver → Tokyo / Narita
 N26960 Boeing 787-9 Incomplete (signal lost) ~9890 km est. (2042 km recorded)
2026-09-30 17:51 UTC UAL143 DEN → NRT
Denver → Tokyo / Narita
 N29968 Boeing 787-9 Completed 9522 km
2026-09-30 08:20 UTC UAL143 NRT → ROR
Tokyo / Narita → Babelthuap Island
 N17329 Boeing 737 MAX 8 Completed 3594 km
2026-09-30 04:50 UTC UAL143 DEN → NRT
Denver → Tokyo / Narita
 N24979 Boeing 787-9 Completed 472 km
2026-09-29 17:48 UTC UAL143 DEN → NRT
Denver → Tokyo / Narita
 N24979 Boeing 787-9 Incomplete (signal lost) ~9465 km est. (5319 km recorded)
2026-09-29 04:59 UTC UAL143 DEN → NRT
Denver → Tokyo / Narita
 N24980 Boeing 787-9 Completed 472 km
2026-09-28 17:49 UTC UAL143 DEN → NRT
Denver → Tokyo / Narita
 N24980 Boeing 787-9 Incomplete (signal lost) ~9619 km est. (5386 km recorded)
2026-09-28 05:06 UTC UAL143 DEN → NRT
Denver → Tokyo / Narita
 N24973 Boeing 787-9 Completed 503 km
2026-09-27 17:47 UTC UAL143 DEN → NRT
Denver → Tokyo / Narita
 N24973 Boeing 787-9 Incomplete (signal lost) ~9859 km est. (1884 km recorded)
2026-09-27 04:22 UTC UAL143 DEN → NRT
Denver → Tokyo / Narita
 N27965 Boeing 787-9 Completed 470 km
2026-09-26 17:39 UTC UAL143 DEN → NRT
Denver → Tokyo / Narita
 N27965 Boeing 787-9 Incomplete (signal lost) ~9596 km est. (4633 km recorded)
2026-09-26 08:08 UTC UAL143 NRT → ROR
Tokyo / Narita → Babelthuap Island
 N17302 Boeing 737 MAX 8 Completed 3327 km
2026-09-26 04:03 UTC UAL143 DEN → NRT
Denver → Tokyo / Narita
 N29961 Boeing 787-9 Completed 472 km
2026-09-25 17:43 UTC UAL143 DEN → NRT
Denver → Tokyo / Narita
 N29961 Boeing 787-9 Incomplete (signal lost) ~9473 km est. (4540 km recorded)
2026-09-25 05:26 UTC UAL143 DEN → NRT
Denver → Tokyo / Narita
 N36962 Boeing 787-9 Completed 511 km
2026-09-24 18:43 UTC UAL143 DEN → NRT
Denver → Tokyo / Narita
 N36962 Boeing 787-9 Incomplete (signal lost) ~9516 km est. (5351 km recorded)
2026-09-24 04:36 UTC UAL143 DEN → NRT
Denver → Tokyo / Narita
 N30PX GULFSTREAM AEROSPACE Gulfstream G280 Completed 482 km
2026-09-23 17:34 UTC UAL143 DEN → NRT
Denver → Tokyo / Narita
 N30PX GULFSTREAM AEROSPACE Gulfstream G280 Incomplete (signal lost) ~9477 km est. (5335 km recorded)
2026-09-23 08:24 UTC UAL143 NRT → ROR
Tokyo / Narita → Babelthuap Island
 N17326 Boeing 737 MAX 8 Completed 3374 km
2026-09-23 04:43 UTC UAL143 DEN → NRT
Denver → Tokyo / Narita
 N24980 Boeing 787-9 Completed 490 km
2026-09-22 17:46 UTC UAL143 DEN → NRT
Denver → Tokyo / Narita
 N24980 Boeing 787-9 Incomplete (signal lost) ~9445 km est. (5251 km recorded)
2026-09-22 05:38 UTC UAL143 DEN → NRT
Denver → Tokyo / Narita
 N24972 Boeing 787-9 Completed 444 km
2026-09-21 17:49 UTC UAL143 DEN → NRT
Denver → Tokyo / Narita
 N24972 Boeing 787-9 Incomplete (signal lost) ~9899 km est. (2044 km recorded)
2026-09-20 04:23 UTC UAL143 DEN → NRT
Denver → Tokyo / Narita
 N26970 Boeing 787-9 Completed 507 km
2026-09-19 17:37 UTC UAL143 DEN → NRT
Denver → Tokyo / Narita
 N26970 Boeing 787-9 Incomplete (signal lost) ~9599 km est. (5327 km recorded)
2026-09-19 08:34 UTC UAL143 NRT → ROR
Tokyo / Narita → Babelthuap Island
 N27304 Boeing 737 MAX 8 Completed 3457 km
2026-09-19 04:04 UTC UAL143 DEN → NRT
Denver → Tokyo / Narita
 N27997 Boeing 787-9 Completed 475 km
2026-09-18 17:36 UTC UAL143 DEN → NRT
Denver → Tokyo / Narita
 N27997 Boeing 787-9 Incomplete (signal lost) ~9682 km est. (5429 km recorded)
2026-09-18 04:40 UTC UAL143 DEN → NRT
Denver → Tokyo / Narita
 N30PX GULFSTREAM AEROSPACE Gulfstream G280 Completed 513 km
2026-09-17 17:51 UTC UAL143 DEN → NRT
Denver → Tokyo / Narita
 N30PX GULFSTREAM AEROSPACE Gulfstream G280 Incomplete (signal lost) ~9668 km est. (5515 km recorded)
2026-09-17 04:27 UTC UAL143 DEN → NRT
Denver → Tokyo / Narita
 N24988 Boeing 787-9 Completed 470 km
2026-09-16 17:34 UTC UAL143 DEN → NRT
Denver → Tokyo / Narita
 N24988 Boeing 787-9 Incomplete (signal lost) ~9707 km est. (2218 km recorded)
2026-09-16 08:16 UTC UAL143 NRT → ROR
Tokyo / Narita → Babelthuap Island
 N17303 Boeing 737 MAX 8 Completed (landing presumed) 3363 km
2026-09-16 04:48 UTC UAL143 DEN → NRT
Denver → Tokyo / Narita
 N23994 Boeing 787-9 Completed 457 km
2026-09-15 17:48 UTC UAL143 DEN → NRT
Denver → Tokyo / Narita
 N23994 Boeing 787-9 Incomplete (signal lost) ~9989 km est. (2022 km recorded)
2026-09-15 04:48 UTC UAL143 DEN → NRT
Denver → Tokyo / Narita
 N38955 Boeing 787-9 Completed 496 km
2026-09-14 17:55 UTC UAL143 DEN → NRT
Denver → Tokyo / Narita
 N38955 Boeing 787-9 Incomplete (signal lost) ~9609 km est. (2199 km recorded)
2026-09-14 04:42 UTC UAL143 DEN → NRT
Denver → Tokyo / Narita
 N24980 Boeing 787-9 Completed 456 km
2026-09-13 17:45 UTC UAL143 DEN → NRT
Denver → Tokyo / Narita
 N24980 Boeing 787-9 Incomplete (signal lost) ~9518 km est. (2219 km recorded)
2026-09-13 04:59 UTC UAL143 DEN → NRT
Denver → Tokyo / Narita
 N19951 Boeing 787-9 Completed 512 km
2026-09-12 17:56 UTC UAL143 DEN → NRT
Denver → Tokyo / Narita
 N19951 Boeing 787-9 Incomplete (signal lost) ~9482 km est. (2319 km recorded)
2026-09-12 07:58 UTC UAL143 NRT → ROR
Tokyo / Narita → Babelthuap Island
 N33262 Boeing 737-800 Completed 3349 km
2026-09-12 05:08 UTC UAL143 DEN → NRT
Denver → Tokyo / Narita
 N19986 Boeing 787-9 Completed 520 km
2026-09-11 18:03 UTC UAL143 DEN → NRT
Denver → Tokyo / Narita
 N19986 Boeing 787-9 Incomplete (signal lost) ~9565 km est. (2986 km recorded)
2026-09-11 04:49 UTC UAL143 ? → NRT
? → Tokyo / Narita
 N38955 Boeing 787-9 Completed 473 km
2026-09-10 17:54 UTC UAL143 DEN → NRT
Denver → Tokyo / Narita
 N38955 Boeing 787-9 Incomplete (signal lost) ~9509 km est. (2371 km recorded)
2026-09-09 17:54 UTC UAL143 DEN → NRT
Denver → Tokyo / Narita
 N30PX GULFSTREAM AEROSPACE Gulfstream G280 Completed 9796 km
2026-09-09 08:32 UTC UAL143 NRT → ROR
Tokyo / Narita → Babelthuap Island
 N17329 Boeing 737 MAX 8 Completed 3382 km
2026-09-07 18:56 UTC UAL143 DEN → NRT
Denver → Tokyo / Narita
 N28987 Boeing 787-9 Completed 9787 km

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