UAL28

Flight

Status

Completed

Arrival confirmed via

ADS-B (ground reading)

Departure

Singapore Changi Airport (SIN) — Singapore, Singapore

Est. departure time

2026-09-15 12:55 UTC (approx.)

Arrival

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

Distance flown

13866 km

Straight-line distance

13582 km

Approach distance

62 km

Aircraft

Registration

N51104

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

39,025 ft

Max ground speed

552 kt

Tracked

14h 42m · 13,819 km

Altitude (ft, max 39,025)

Ground speed (kt, max 552)

Altitude (ft, max 39,025)

Ground speed (kt, max 552)

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 13:01 UTC	UAL28	SIN → SFO Singapore → San Francisco	N81107	Boeing 787-9	In progress	~13582 km est.
2026-10-02 02:33 UTC	UAL28	SIN → SFO Singapore → San Francisco	N71108	Boeing 787-9	Completed	1014 km
2026-10-01 13:17 UTC	UAL28	SIN → SFO Singapore → San Francisco	N71108	Boeing 787-9	Completed (landing confirmed by airport data)	~13744 km est. (5860 km recorded)
2026-10-01 02:49 UTC	UAL28	SIN → SFO Singapore → San Francisco	N51104	Boeing 787-9	Completed	920 km
2026-09-30 13:16 UTC	UAL28	SIN → SFO Singapore → San Francisco	N51104	Boeing 787-9	Completed (landing confirmed by airport data)	~13754 km est. (5841 km recorded)
2026-09-30 03:30 UTC	UAL28	SIN → SFO Singapore → San Francisco	N21102	Boeing 787-9	Completed	977 km
2026-09-29 13:33 UTC	UAL28	SIN → SFO Singapore → San Francisco	N21102	Boeing 787-9	Incomplete (signal lost)	~13690 km est. (2687 km recorded)
2026-09-28 13:31 UTC	UAL28	SIN → SFO Singapore → San Francisco	N51104	Boeing 787-9	Completed	13788 km
2026-09-27 14:14 UTC	UAL28	SIN → SFO Singapore → San Francisco	N61106	Boeing 787-9	Completed	13843 km
2026-09-26 13:27 UTC	UAL28	SIN → SFO Singapore → San Francisco	N71108	Boeing 787-9	Completed	13783 km
2026-09-25 14:25 UTC	UAL28	SIN → SFO Singapore → San Francisco	N61106	Boeing 787-9	Completed	13919 km
2026-09-24 13:02 UTC	UAL28	SIN → SFO Singapore → San Francisco	N61103	Boeing 787-9	Completed	13870 km
2026-09-23 12:52 UTC	UAL28	SIN → SFO Singapore → San Francisco	N71108	Boeing 787-9	Completed	13857 km
2026-09-22 13:06 UTC	UAL28	SIN → SFO Singapore → San Francisco	N81107	Boeing 787-9	Completed	13776 km
2026-09-21 13:51 UTC	UAL28	SIN → SFO Singapore → San Francisco	N61103	Boeing 787-9	Completed	13740 km
2026-09-20 13:20 UTC	UAL28	SIN → SFO Singapore → San Francisco	N51104	Boeing 787-9	Completed	13824 km
2026-09-19 13:26 UTC	UAL28	SIN → SFO Singapore → San Francisco	N21102	Boeing 787-9	Completed	13989 km
2026-09-18 13:34 UTC	UAL28	SIN → SFO Singapore → San Francisco	N51104	Boeing 787-9	Completed	13927 km
2026-09-17 12:54 UTC	UAL28	SIN → SFO Singapore → San Francisco	N61109	Boeing 787-9	Completed	13961 km
2026-09-16 12:53 UTC	UAL28	SIN → SFO Singapore → San Francisco	N81107	Boeing 787-9	Completed	14216 km
2026-09-15 13:14 UTC	UAL28	SIN → SFO Singapore → San Francisco	N51104	Boeing 787-9	Completed	13866 km
2026-09-14 13:23 UTC	UAL28	SIN → SFO Singapore → San Francisco	N61103	Boeing 787-9	Completed	13870 km
2026-09-13 13:23 UTC	UAL28	SIN → SFO Singapore → San Francisco	N81107	Boeing 787-9	Completed	13855 km
2026-09-12 13:41 UTC	UAL28	SIN → SFO Singapore → San Francisco	N81110	Boeing 787-9	Completed	13873 km
2026-09-11 13:39 UTC	UAL28	SIN → SFO Singapore → San Francisco	N61109	Boeing 787-9	Completed	13910 km
2026-09-10 13:00 UTC	UAL28	SIN → SFO Singapore → San Francisco	N61103	Boeing 787-9	Completed	13964 km
2026-09-09 13:19 UTC	UAL28	SIN → SFO Singapore → San Francisco	N51104	Boeing 787-9	Completed	14039 km
2026-09-08 13:09 UTC	UAL28	SIN → SFO Singapore → San Francisco	N81105	Boeing 787-9	Incomplete (signal lost)	~13634 km est. (5 km recorded)
2026-09-07 13:18 UTC	UAL28	SIN → SFO Singapore → San Francisco	N61106	Boeing 787-9	Completed	13910 km
2026-09-06 13:31 UTC	UAL28	SIN → SFO Singapore → San Francisco	N21102	Boeing 787-9	Completed	13803 km
2026-09-05 13:31 UTC	UAL28	SIN → SFO Singapore → San Francisco	N71108	Boeing 787-9	Completed	13808 km
2026-09-04 13:34 UTC	UAL28	SIN → SFO Singapore → San Francisco	N61101	Boeing 787-9	Completed	13815 km
2026-09-03 13:04 UTC	UAL28	SIN → SFO Singapore → San Francisco	N81110	Boeing 787-9	Completed	13969 km
2026-09-02 13:08 UTC	UAL28	SIN → SFO Singapore → San Francisco	N81107	Boeing 787-9	Completed	13988 km
2026-09-01 12:55 UTC	UAL28	SIN → SFO Singapore → San Francisco	N61103	Boeing 787-9	Completed	13865 km
2026-08-31 12:56 UTC	UAL28	SIN → SFO Singapore → San Francisco	N81105	Boeing 787-9	Completed	14028 km
2026-08-30 13:14 UTC	UAL28	SIN → SFO Singapore → San Francisco	N71108	Boeing 787-9	Completed	14043 km
2026-08-29 13:18 UTC	UAL28	SIN → SFO Singapore → San Francisco	N21102	Boeing 787-9	Completed	13972 km
2026-08-28 13:06 UTC	UAL28	SIN → SFO Singapore → San Francisco	N71108	Boeing 787-9	Completed	13789 km
2026-08-27 12:57 UTC	UAL28	SIN → SFO Singapore → San Francisco	N61101	Boeing 787-9	Completed	13838 km
2026-08-26 13:31 UTC	UAL28	SIN → SFO Singapore → San Francisco	N81110	Boeing 787-9	Completed	13730 km
2026-08-25 14:07 UTC	UAL28	SIN → SFO Singapore → San Francisco	N81107	Boeing 787-9	Completed	13824 km
2026-08-24 13:43 UTC	UAL28	SIN → SFO Singapore → San Francisco	N61103	Boeing 787-9	Completed	13817 km
2026-08-23 13:15 UTC	UAL28	SIN → SFO Singapore → San Francisco	N61106	Boeing 787-9	Completed	13795 km
2026-08-21 19:04 UTC	UAL28	SFO → SFO San Francisco → San Francisco	N81105	Boeing 787-9	Completed	28133 km
2026-08-21 13:18 UTC	UAL28	SIN → SFO Singapore → San Francisco	N61101	Boeing 787-9	Completed	14144 km
2026-08-19 19:07 UTC	UAL28	SFO → SFO San Francisco → San Francisco	N81105	Boeing 787-9	Completed	28301 km
2026-08-18 19:10 UTC	UAL28	SFO → SFO San Francisco → San Francisco	N61103	Boeing 787-9	Completed	28906 km
2026-08-17 18:59 UTC	UAL28	SFO → SFO San Francisco → San Francisco	N21102	Boeing 787-9	Completed	28982 km
2026-08-16 18:56 UTC	UAL28	SFO → SFO San Francisco → San Francisco	N61103	Boeing 787-9	Completed	28961 km