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UAL871

SFO → TPE · Boeing 777-300ER · United Airlines

Flight

Status
Completed
Arrival confirmed via
ADS-B (ground reading)
Departure
San Francisco International Airport (SFO) — San Francisco, United States
Est. departure time
2026-09-06 22:14 UTC (approx.)
Arrival
Taiwan Taoyuan International Airport (TPE) — Taipei, Taiwan
Distance flown
10731 km
Straight-line distance
10391 km
Approach distance
92 km

Aircraft

Registration
N2639U
Type
Boeing 777-300ER
Seats
350 total (204 Economy, 62 Economy Plus, 24 Premium Plus, 60 Polaris)

Altitude & speed

Max altitude
38,000 ft
Max ground speed
497 kt
Tracked
12h 28m · 10,697 km
Altitude (ft, max 38,000)
020,52041,0400m2h 0m4h 0m6h 0m8h 0m10h 0m12h 0m
Ground speed (kt, max 497)
02685370m2h 0m4h 0m6h 0m8h 0m10h 0m12h 0m
Altitude (ft, max 38,000)
020,52041,0400m4h 0m8h 0m12h 0m
Ground speed (kt, max 497)
02685370m4h 0m8h 0m12h 0m

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 11:15 UTC UAL871 SFO → TPE
San Francisco → Taipei
 N2748U Boeing 777-300ER In progress ~10391 km est.
2026-10-02 10:28 UTC UAL871 SFO → TPE
San Francisco → Taipei
 N2748U Boeing 777-300ER Incomplete (signal lost) ~889 km est. (307 km recorded)
2026-10-01 23:10 UTC UAL871 SFO → TPE
San Francisco → Taipei
 N2748U Boeing 777-300ER Incomplete (signal lost) ~10504 km est. (469 km recorded)
2026-10-01 09:57 UTC UAL871 SFO → TPE
San Francisco → Taipei
 N2250U Boeing 777-300ER Completed (landing confirmed by airport data) 372 km
2026-10-01 06:21 UTC UAL871 YYZ → TPE
Toronto → Taipei
 N2250U Boeing 777-300ER Incomplete (signal lost) ~883 km est. (287 km recorded)
2026-09-30 21:48 UTC UAL871 SFO → TPE
San Francisco → Taipei
 N2250U Boeing 777-300ER Incomplete (signal lost) ~10509 km est. (375 km recorded)
2026-09-30 09:54 UTC UAL871 SFO → TPE
San Francisco → Taipei
 N2136U Boeing 777-300ER Completed 451 km
2026-09-30 09:19 UTC UAL871 SFO → TPE
San Francisco → Taipei
 N2136U Boeing 777-300ER Completed (landing confirmed by airport data) ~888 km est. (257 km recorded)
2026-09-29 21:46 UTC UAL871 SFO → TPE
San Francisco → Taipei
 N2136U Boeing 777-300ER Incomplete (signal lost) ~10503 km est. (343 km recorded)
2026-09-28 22:15 UTC UAL871 SFO → TPE
San Francisco → Taipei
 N2331U Boeing 777-300ER Completed 10552 km
2026-09-27 22:05 UTC UAL871 SFO → TPE
San Francisco → Taipei
 N2737U Boeing 777-300ER Completed 10561 km
2026-09-26 21:53 UTC UAL871 SFO → TPE
San Francisco → Taipei
 N2250U Boeing 777-300ER Completed 10560 km
2026-09-25 21:54 UTC UAL871 SFO → TPE
San Francisco → Taipei
 N2331U Boeing 777-300ER Completed 10684 km
2026-09-24 22:33 UTC UAL871 SFO → TPE
San Francisco → Taipei
 N2846U Boeing 777-300ER Completed 10744 km
2026-09-23 21:54 UTC UAL871 SFO → TPE
San Francisco → Taipei
 N2749U Boeing 777-300ER Completed 10714 km
2026-09-22 21:47 UTC UAL871 SFO → TPE
San Francisco → Taipei
 N2135U Boeing 777-300ER Completed 10672 km
2026-09-21 23:03 UTC UAL871 SFO → TPE
San Francisco → Taipei
 N2352U Boeing 777-300ER Completed 10706 km
2026-09-20 21:49 UTC UAL871 SFO → TPE
San Francisco → Taipei
 N2136U Boeing 777-300ER Completed 10696 km
2026-09-19 21:57 UTC UAL871 SFO → TPE
San Francisco → Taipei
 N2332U Boeing 777-300ER Completed 10621 km
2026-09-18 22:02 UTC UAL871 SFO → TPE
San Francisco → Taipei
 N2352U Boeing 777-300ER Completed 10786 km
2026-09-17 22:28 UTC UAL871 SFO → TPE
San Francisco → Taipei
 N2747U Boeing 777-300ER Completed 10618 km
2026-09-16 22:32 UTC UAL871 SFO → TPE
San Francisco → Taipei
 N2341U Boeing 777-300ER Completed 10681 km
2026-09-15 22:09 UTC UAL871 SFO → TPE
San Francisco → Taipei
 N2747U Boeing 777-300ER Completed 10703 km
2026-09-14 22:23 UTC UAL871 SFO → TPE
San Francisco → Taipei
 N2341U Boeing 777-300ER Completed 10653 km
2026-09-13 22:13 UTC UAL871 SFO → TPE
San Francisco → Taipei
 N2644U Boeing 777-300ER Completed 10811 km
2026-09-12 23:55 UTC UAL871 SFO → TPE
San Francisco → Taipei
 N2243U Boeing 777-300ER Completed 10728 km
2026-09-11 22:11 UTC UAL871 SFO → TPE
San Francisco → Taipei
 N2142U Boeing 777-300ER Completed 10752 km
2026-09-10 22:23 UTC UAL871 SFO → TPE
San Francisco → Taipei
 N2846U Boeing 777-300ER Completed 10787 km
2026-09-09 22:29 UTC UAL871 SFO → TPE
San Francisco → Taipei
 N2251U Boeing 777-300ER Completed 10749 km
2026-09-09 08:46 UTC UAL871 SFO → TPE
San Francisco → Taipei
 N2645U Boeing 777-300ER Completed 1017 km
2026-09-07 22:33 UTC UAL871 SFO → TPE
San Francisco → Taipei
 N2250U Boeing 777-300ER Completed 10716 km
2026-09-06 22:30 UTC UAL871 SFO → TPE
San Francisco → Taipei
 N2639U Boeing 777-300ER Completed 10731 km
2026-09-05 22:09 UTC UAL871 SFO → TPE
San Francisco → Taipei
 N2747U Boeing 777-300ER Completed 10660 km
2026-09-04 22:09 UTC UAL871 SFO → TPE
San Francisco → Taipei
 N2331U Boeing 777-300ER Completed 10731 km
2026-09-03 22:14 UTC UAL871 SFO → TPE
San Francisco → Taipei
 N2747U Boeing 777-300ER Completed 10682 km
2026-09-02 22:22 UTC UAL871 SFO → TPE
San Francisco → Taipei
 N2135U Boeing 777-300ER Completed 10722 km
2026-09-01 22:09 UTC UAL871 SFO → TPE
San Francisco → Taipei
 N2534U Boeing 777-300ER Completed 10625 km
2026-08-31 22:18 UTC UAL871 SFO → TPE
San Francisco → Taipei
 N2331U Boeing 777-300ER Completed 10649 km
2026-08-30 22:40 UTC UAL871 SFO → TPE
San Francisco → Taipei
 N2136U Boeing 777-300ER Completed 10770 km
2026-08-29 22:06 UTC UAL871 SFO → TPE
San Francisco → Taipei
 N2333U Boeing 777-300ER Completed (landing presumed) 10592 km
2026-08-28 22:56 UTC UAL871 SFO → TPE
San Francisco → Taipei
 N2534U Boeing 777-300ER Completed 10774 km
2026-08-27 04:26 UTC UAL871 SFO → TPE
San Francisco → Taipei
 N2135U Boeing 777-300ER Completed 10685 km
2026-08-25 22:15 UTC UAL871 SFO → TPE
San Francisco → Taipei
 N2138U Boeing 777-300ER Completed 10651 km
2026-08-24 23:30 UTC UAL871 SFO → TPE
San Francisco → Taipei
 N2136U Boeing 777-300ER Completed 10593 km
2026-08-23 22:25 UTC UAL871 SFO → TPE
San Francisco → Taipei
 N2138U Boeing 777-300ER Completed 10610 km
2026-08-22 22:08 UTC UAL871 SFO → TPE
San Francisco → Taipei
 N2748U Boeing 777-300ER Completed 11399 km
2026-08-20 23:10 UTC UAL871 SFO → TPE
San Francisco → Taipei
 N2748U Boeing 777-300ER Completed 11466 km
2026-08-19 22:28 UTC UAL871 SFO → TPE
San Francisco → Taipei
 N2251U Boeing 777-300ER Completed 11798 km
2026-08-18 22:22 UTC UAL871 SFO → TPE
San Francisco → Taipei
 N2138U Boeing 777-300ER Completed 11827 km
2026-08-17 22:37 UTC UAL871 SFO → TPE
San Francisco → Taipei
 N2243U Boeing 777-300ER Completed 12136 km

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