UAL852

For travellers

Departure · Taipei (TPE)

Terminal T2 · Gate D6 · Check-in 9

Scheduled 14:30 · Departed 14:36 · +7 min

Board status: Flew

Airborne since 14:36 (ADS-B)

Arrival · San Francisco (SFO)

Terminal ITM · Baggage belt CL2

Scheduled 11:15 · Estimated 11:07 · early

Board status: On time

In the air, ~10h 8m to go (8% of the route flown)

Board data from sfo, tpe, updated 21 min ago; times local to each airport.

Flight

Status

In progress

Departure

Taiwan Taoyuan International Airport (TPE) — Taipei, Taiwan

Scheduled departure

2026-10-02 06:30 UTC

Departed

2026-10-02 06:36 UTC

Arrival

San Francisco International Airport (SFO) — San Francisco, United States (scheduled)

Scheduled arrival

2026-10-02 18:15 UTC

Estimated arrival

2026-10-02 18:07 UTC

Progress

8% · ~10h 8m remaining

Also flies as

UA852

Distance flown

858 km

Straight-line distance

10391 km

Aircraft

Registration

N76021

Type

Boeing 777-200ER

Seats

276 total (156 Economy, 46 Economy Plus, 24 Premium Plus, 50 United Polaris Business)

CO2 (EMEP est., total)

571.0 t (1483 kg/pax Economy, 1860 kg/pax Premium Economy, 4531 kg/pax Business)

Altitude & speed

Max altitude

31,025 ft

Max ground speed

518 kt

Tracked

1h 1m · 858 km

Note

still in progress - the track so far

Altitude (ft, max 31,025)

Ground speed (kt, max 518)

Altitude (ft, max 31,025)

Ground speed (kt, max 518)

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

Departed	Flight	Route	Reg	Aircraft	Status	Distance
2026-10-02 06:36 UTC	UAL852	TPE → SFO Taipei → San Francisco	N76021	Boeing 777-200ER	In progress	~10391 km est.
2026-10-01 17:16 UTC	UAL852	TPE → SFO Taipei → San Francisco	N787UA	Boeing 777-200ER	Completed	544 km
2026-10-01 06:56 UTC	UAL852	TPE → SFO Taipei → San Francisco	N787UA	Boeing 777-200ER	Completed (landing confirmed by airport data)	~10471 km est. (2417 km recorded)
2026-09-30 16:52 UTC	UAL852	TPE → SFO Taipei → San Francisco	N78002	Boeing 777-200ER	Completed	529 km
2026-09-30 06:40 UTC	UAL852	TPE → SFO Taipei → San Francisco	N78002	Boeing 777-200ER	Completed (landing confirmed by airport data)	~10484 km est. (2496 km recorded)
2026-09-29 06:48 UTC	UAL852	TPE → SFO Taipei → San Francisco	N226UA	Boeing 777-200ER	Completed	10620 km
2026-09-28 06:46 UTC	UAL852	TPE → SFO Taipei → San Francisco	N793UA	Boeing 777-200ER	Completed	10652 km
2026-09-27 07:53 UTC	UAL852	TPE → SFO Taipei → San Francisco	N227UA	Boeing 777-200ER	Completed	10567 km
2026-09-26 08:25 UTC	UAL852	TPE → SFO Taipei → San Francisco	N77006	Boeing 777-200ER	Completed	10579 km
2026-09-25 06:45 UTC	UAL852	TPE → SFO Taipei → San Francisco	N791UA	Boeing 777-200ER	Completed	10604 km
2026-09-24 06:48 UTC	UAL852	TPE → SFO Taipei → San Francisco	N78003	Boeing 777-200ER	Completed	10608 km
2026-09-23 06:37 UTC	UAL852	TPE → SFO Taipei → San Francisco	N783UA	Boeing 777-200ER	Completed	10650 km
2026-09-22 06:40 UTC	UAL852	TPE → SFO Taipei → San Francisco	N784UA	Boeing 777-200ER	Completed	10763 km
2026-09-21 06:33 UTC	UAL852	TPE → SFO Taipei → San Francisco	N785UA	Boeing 777-200ER	Completed	10654 km
2026-09-20 06:43 UTC	UAL852	TPE → SFO Taipei → San Francisco	N78013	Boeing 777-200ER	Completed	10660 km
2026-09-19 06:50 UTC	UAL852	TPE → SFO Taipei → San Francisco	N798UA	Boeing 777-200ER	Completed	10675 km
2026-09-18 06:38 UTC	UAL852	TPE → SFO Taipei → San Francisco	N785UA	Boeing 777-200ER	Completed	10692 km
2026-09-17 06:40 UTC	UAL852	TPE → SFO Taipei → San Francisco	N76010	Boeing 777-200ER	Completed	10664 km
2026-09-16 06:53 UTC	UAL852	TPE → SFO Taipei → San Francisco	N228UA	Boeing 777-200ER	Completed	10759 km
2026-09-15 06:34 UTC	UAL852	TPE → SFO Taipei → San Francisco	N77006	Boeing 777-200ER	Completed	10747 km
2026-09-14 06:34 UTC	UAL852	TPE → SFO Taipei → San Francisco	N76010	Boeing 777-200ER	Completed	10669 km
2026-09-13 06:38 UTC	UAL852	TPE → SFO Taipei → San Francisco	N792UA	Boeing 777-200ER	Completed	10634 km
2026-09-12 06:45 UTC	UAL852	TPE → SFO Taipei → San Francisco	N209UA	Boeing 777-200ER	Completed	10674 km
2026-09-11 06:37 UTC	UAL852	TPE → SFO Taipei → San Francisco	N794UA	Boeing 777-200ER	Completed	10649 km
2026-09-10 06:42 UTC	UAL852	TPE → SFO Taipei → San Francisco	N216UA	Boeing 777-200ER	Completed	10666 km
2026-09-09 08:05 UTC	UAL852	TPE → SFO Taipei → San Francisco	N209UA	Boeing 777-200ER	Completed	9441 km
2026-09-08 06:40 UTC	UAL852	TPE → SFO Taipei → San Francisco	N204UA	Boeing 777-200ER	Incomplete (signal lost)	~10554 km est. (2687 km recorded)
2026-09-07 06:48 UTC	UAL852	TPE → SFO Taipei → San Francisco	N787UA	Boeing 777-200ER	Completed	10695 km
2026-09-06 08:03 UTC	UAL852	TPE → SFO Taipei → San Francisco	N217UA	Boeing 777-200ER	Completed	10739 km
2026-09-05 06:39 UTC	UAL852	TPE → SFO Taipei → San Francisco	N78003	Boeing 777-200ER	Completed	10668 km
2026-09-04 06:41 UTC	UAL852	TPE → SFO Taipei → San Francisco	N74007	Boeing 777-200ER	Completed	10741 km
2026-09-02 06:39 UTC	UAL852	TPE → SFO Taipei → San Francisco	N218UA	Boeing 777-200ER	Completed	10572 km
2026-09-01 06:46 UTC	UAL852	TPE → SFO Taipei → San Francisco	N229UA	Boeing 777-200ER	Completed	10782 km
2026-08-31 06:38 UTC	UAL852	TPE → SFO Taipei → San Francisco	N204UA	Boeing 777-200ER	Completed	10803 km
2026-08-30 06:47 UTC	UAL852	TPE → SFO Taipei → San Francisco	N57016	Boeing 777-200ER	Completed	10613 km
2026-08-29 06:31 UTC	UAL852	TPE → SFO Taipei → San Francisco	N796UA	Boeing 777-200ER	Completed	10795 km
2026-08-28 07:11 UTC	UAL852	TPE → SFO Taipei → San Francisco	N77012	Boeing 777-200ER	Completed	10746 km
2026-08-27 06:43 UTC	UAL852	TPE → SFO Taipei → San Francisco	N798UA	Boeing 777-200ER	Completed	10702 km
2026-08-26 06:54 UTC	UAL852	TPE → SFO Taipei → San Francisco	N783UA	Boeing 777-200ER	Completed	10669 km
2026-08-25 06:53 UTC	UAL852	TPE → SFO Taipei → San Francisco	N791UA	Boeing 777-200ER	Completed	10609 km
2026-08-24 07:05 UTC	UAL852	TPE → SFO Taipei → San Francisco	N77022	Boeing 777-200ER	Completed	10681 km
2026-08-23 06:48 UTC	UAL852	TPE → SFO Taipei → San Francisco	N785UA	Boeing 777-200ER	Completed	11525 km
2026-08-22 06:57 UTC	UAL852	TPE → SFO Taipei → San Francisco	N209UA	Boeing 777-200ER	Completed	11480 km
2026-08-21 06:48 UTC	UAL852	TPE → SFO Taipei → San Francisco	N76010	Boeing 777-200ER	Completed	11678 km
2026-08-20 09:08 UTC	UAL852	TPE → SFO Taipei → San Francisco	N798UA	Boeing 777-200ER	Completed	11544 km
2026-08-19 06:33 UTC	UAL852	TPE → SFO Taipei → San Francisco	N791UA	Boeing 777-200ER	Completed	11774 km
2026-08-18 06:43 UTC	UAL852	TPE → SFO Taipei → San Francisco	N78003	Boeing 777-200ER	Completed	12167 km
2026-08-17 06:41 UTC	UAL852	TPE → SFO Taipei → San Francisco	N785UA	Boeing 777-200ER	Completed	11719 km
2026-08-16 06:43 UTC	UAL852	TPE → SFO Taipei → San Francisco	N76021	Boeing 777-200ER	Completed	11763 km
2026-08-15 07:23 UTC	UAL852	TPE → SFO Taipei → San Francisco	N797UA	Boeing 777-200ER	Completed	11656 km