UAL2171

Flight

Status

Completed

Arrival confirmed via

ADS-B (ground reading)

Departure

Newark Liberty International Airport (EWR) — Newark, United States

Departed

2026-09-19 22:25 UTC

Arrival

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

Distance flown

4523 km

Straight-line distance

4118 km

Approach distance

65 km

Aircraft

Registration

N2142U

Type

Boeing 777-300ER

Seats

350 total (204 Economy, 62 Economy Plus, 24 Premium Plus, 60 Polaris)

Altitude & speed

Max altitude

34,025 ft

Max ground speed

499 kt

Tracked

5h 23m · 4,363 km

Altitude (ft, max 34,025)

Ground speed (kt, max 499)

Altitude (ft, max 34,025)

Ground speed (kt, max 499)

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
2026-09-24 01:23 UTC	UAL2171	EWR → SFO Newark → San Francisco	N2333U	Boeing 777-300ER	Completed	4316 km
2026-09-22 22:43 UTC	UAL2171	EWR → SFO Newark → San Francisco	N2331U	Boeing 777-300ER	Completed	4182 km
2026-09-20 23:20 UTC	UAL2171	EWR → SFO Newark → San Francisco	N2749U	Boeing 777-300ER	Completed	4651 km
2026-09-19 22:25 UTC	UAL2171	EWR → SFO Newark → San Francisco	N2142U	Boeing 777-300ER	Completed	4523 km
2026-09-18 22:22 UTC	UAL2171	EWR → SFO Newark → San Francisco	N792UA	Boeing 777-200ER	Completed	4523 km
2026-09-17 23:16 UTC	UAL2171	EWR → SFO Newark → San Francisco	N2243U	Boeing 777-300ER	Completed	4345 km
2026-09-16 22:35 UTC	UAL2171	EWR → SFO Newark → San Francisco	N2332U	Boeing 777-300ER	Completed	4424 km
2026-09-15 22:20 UTC	UAL2171	EWR → SFO Newark → San Francisco	N2138U	Boeing 777-300ER	Completed	4354 km
2026-09-14 22:31 UTC	UAL2171	EWR → SFO Newark → San Francisco	N2534U	Boeing 777-300ER	Completed	4446 km
2026-09-13 23:02 UTC	UAL2171	EWR → SFO Newark → San Francisco	N2748U	Boeing 777-300ER	Completed	4963 km
2026-09-12 23:23 UTC	UAL2171	EWR → SFO Newark → San Francisco	N2352U	Boeing 777-300ER	Completed	4585 km
2026-09-11 23:41 UTC	UAL2171	EWR → SFO Newark → San Francisco	N2644U	Boeing 777-300ER	Completed	4502 km
2026-09-11 01:51 UTC	UAL2171	EWR → SFO Newark → San Francisco	N2142U	Boeing 777-300ER	Completed	4432 km
2026-09-10 01:42 UTC	UAL2171	EWR → SFO Newark → San Francisco	N2135U	Boeing 777-300ER	Completed	4569 km
2026-09-07 22:47 UTC	UAL2171	EWR → SFO Newark → San Francisco	N2846U	Boeing 777-300ER	Completed	4659 km
2026-09-06 22:10 UTC	UAL2171	EWR → SFO Newark → San Francisco	N2737U	Boeing 777-300ER	Completed	4458 km
2026-09-05 22:24 UTC	UAL2171	EWR → SFO Newark → San Francisco	N2140U	Boeing 777-300ER	Completed	4425 km
2026-09-04 21:53 UTC	UAL2171	EWR → SFO Newark → San Francisco	N81110	Boeing 787-9	Completed	4236 km
2026-09-03 22:47 UTC	UAL2171	EWR → SFO Newark → San Francisco	N2341U	Boeing 777-300ER	Completed	4572 km
2026-09-02 21:56 UTC	UAL2171	EWR → SFO Newark → San Francisco	N2333U	Boeing 777-300ER	Completed	4394 km
2026-09-02 00:29 UTC	UAL2171	EWR → SFO Newark → San Francisco	N2747U	Boeing 777-300ER	Completed	4392 km
2026-09-01 00:03 UTC	UAL2171	EWR → SFO Newark → San Francisco	N2142U	Boeing 777-300ER	Completed	4573 km
2026-08-30 22:26 UTC	UAL2171	EWR → SFO Newark → San Francisco	N2331U	Boeing 777-300ER	Completed	4422 km
2026-08-29 22:51 UTC	UAL2171	EWR → SFO Newark → San Francisco	N2140U	Boeing 777-300ER	Completed	4408 km
2026-08-28 22:29 UTC	UAL2171	EWR → SFO Newark → San Francisco	N2243U	Boeing 777-300ER	Completed	4563 km
2026-08-28 01:32 UTC	UAL2171	EWR → SFO Newark → San Francisco	N2250U	Boeing 777-300ER	Completed	4739 km
2026-08-26 22:26 UTC	UAL2171	EWR → SFO Newark → San Francisco	N779UA	Boeing 777-200ER	Completed	4409 km
2026-08-25 22:18 UTC	UAL2171	EWR → SFO Newark → San Francisco	N2737U	Boeing 777-300ER	Completed	4441 km
2026-08-24 22:41 UTC	UAL2171	EWR → SFO Newark → San Francisco	N2333U	Boeing 777-300ER	Completed	4586 km
2026-08-23 22:31 UTC	UAL2171	EWR → SFO Newark → San Francisco	N2135U	Boeing 777-300ER	Completed	4443 km
2026-08-22 23:07 UTC	UAL2171	EWR → SFO Newark → San Francisco	N795UA	Boeing 777-200ER	Completed	6874 km
2026-08-21 22:43 UTC	UAL2171	EWR → SFO Newark → San Francisco	N2136U	Boeing 777-300ER	Completed	6384 km
2026-08-20 23:41 UTC	UAL2171	EWR → SFO Newark → San Francisco	N2749U	Boeing 777-300ER	Completed	5531 km
2026-08-19 22:38 UTC	UAL2171	EWR → SFO Newark → San Francisco	N2645U	Boeing 777-300ER	Completed	5418 km
2026-08-19 00:10 UTC	UAL2171	EWR → SFO Newark → San Francisco	N2142U	Boeing 777-300ER	Completed	6000 km
2026-08-17 00:20 UTC	UAL2171	MSN → SFO Madison → San Francisco	N47462	Boeing 737 MAX 9	Completed	4298 km
2026-08-14 23:59 UTC	UAL2171	SFO → MSP San Francisco → Minneapolis	N87507	Boeing 737-800	Completed	~4977 km est. (3852 km recorded)