SIA7921

Flight

Status

Completed

Arrival confirmed via

ADS-B (ground reading)

Departed

2026-10-01 07:54 UTC (first seen)

Arrival

Singapore Changi Airport (SIN) — Singapore, Singapore

Distance flown

472 km

Approach distance

94 km

Aircraft

Registration

9V-SFO

Type

Boeing 747-400

Altitude & speed

Max altitude

35,000 ft

Max ground speed

494 kt

Tracked

49m · 459 km

Altitude (ft, max 35,000)

Ground speed (kt, max 494)

Altitude (ft, max 35,000)

Ground speed (kt, max 494)

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

Singapore Airlines (SIA)

Latest flights

Departed	Flight	Route	Reg	Aircraft	Status	Distance
2026-10-01 07:54 UTC	SIA7921	? → SIN ? → Singapore	9V-SFO	Boeing 747-400	Completed	472 km
2026-10-01 05:17 UTC	SIA7921	HKG → SIN Hong Kong → Singapore	9V-SFO	Boeing 747-400	Completed (landing confirmed by airport data)	~2660 km est. (150 km recorded)
2026-09-30 15:25 UTC	SIA7921	ANC → HKG Anchorage → Hong Kong	9V-SFO	Boeing 747-400	Completed	8570 km
2026-09-30 07:38 UTC	SIA7921	DFW → ANC Dallas-Fort Worth → Anchorage	9V-SFO	Boeing 747-400	Completed	5061 km
2026-09-24 05:27 UTC	SIA7921	HKG → SIN Hong Kong → Singapore	9V-SFP	Boeing 747-400	Completed	2630 km
2026-09-23 15:41 UTC	SIA7921	ANC → HKG Anchorage → Hong Kong	9V-SFP	Boeing 747-400	Completed (landing presumed)	8607 km
2026-09-23 07:30 UTC	SIA7921	DFW → ANC Dallas-Fort Worth → Anchorage	9V-SFP	Boeing 747-400	Completed	5101 km
2026-09-17 05:44 UTC	SIA7921	HKG → SIN Hong Kong → Singapore	9V-SFN	Boeing 747-400	Completed	2770 km
2026-09-16 15:27 UTC	SIA7921	ANC → HKG Anchorage → Hong Kong	9V-SFN	Boeing 747-400	Completed	8749 km
2026-09-16 07:22 UTC	SIA7921	DFW → ANC Dallas-Fort Worth → Anchorage	9V-SFN	Boeing 747-400	Completed	5264 km
2026-09-10 05:40 UTC	SIA7921	HKG → SIN Hong Kong → Singapore	9V-SFO	Boeing 747-400	Completed	2690 km
2026-09-09 15:21 UTC	SIA7921	ANC → HKG Anchorage → Hong Kong	9V-SFO	Boeing 747-400	Completed	8849 km
2026-09-09 07:28 UTC	SIA7921	DFW → ANC Dallas-Fort Worth → Anchorage	9V-SFO	Boeing 747-400	Completed	5259 km
2026-09-03 05:32 UTC	SIA7921	HKG → SIN Hong Kong → Singapore	9V-SFI	Boeing 747-400	Completed	2682 km
2026-09-02 15:44 UTC	SIA7921	ANC → HKG Anchorage → Hong Kong	9V-SFI	Boeing 747-400	Completed	9107 km
2026-09-02 07:27 UTC	SIA7921	DFW → ANC Dallas-Fort Worth → Anchorage	9V-SFI	Boeing 747-400	Completed	5146 km
2026-08-27 05:40 UTC	SIA7921	HKG → SIN Hong Kong → Singapore	9V-SFI	Boeing 747-400	Completed	2674 km
2026-08-26 15:34 UTC	SIA7921	ANC → HKG Anchorage → Hong Kong	9V-SFI	Boeing 747-400	Completed	9156 km
2026-08-26 07:27 UTC	SIA7921	DFW → ANC Dallas-Fort Worth → Anchorage	9V-SFI	Boeing 747-400	Completed	5230 km
2026-08-20 05:24 UTC	SIA7921	HKG → ? Hong Kong → ?	9V-SFO	Boeing 747-400	Completed	3317 km
2026-08-19 15:20 UTC	SIA7921	ANC → HKG Anchorage → Hong Kong	9V-SFO	Boeing 747-400	Completed	12428 km
2026-08-19 07:09 UTC	SIA7921	DFW → ANC Dallas-Fort Worth → Anchorage	9V-SFO	Boeing 747-400	Completed	7835 km
2026-08-13 05:41 UTC	SIA7921	MFM → SIN Macau → Singapore	9V-SFI	Boeing 747-400	Completed	~5958 km est. (2623 km recorded)
2026-08-12 15:04 UTC	SIA7921	ANC → HKG Anchorage → Hong Kong	9V-SFI	Boeing 747-400	Completed	9087 km
2026-08-12 07:10 UTC	SIA7921	DFW → ANC Dallas-Fort Worth → Anchorage	9V-SFI	Boeing 747-400	Completed	7266 km