CSC3974

For travellers

Departure · Seoul (ICN)

Terminal T1 · Gate 47 · Check-in D30-D34

Scheduled 14:50 · Departed 15:10 · +20 min

Board status: Departure

Airborne since 15:10 (ADS-B)

Board data from incheon, updated 64 min ago; times local to each airport.

Flight

Status

In progress

Departure

Incheon International Airport (ICN) — Seoul, South Korea

Scheduled departure

2026-10-03 05:50 UTC

Departed

2026-10-03 06:10 UTC

Arrival

Chengdu Tianfu International Airport (TFU) — Chengdu, China (scheduled)

Progress

97%

Also flies as

3U3974

Distance flown

2276 km

Straight-line distance

2204 km

Aircraft

Registration

B-6839

Type

Airbus A321

Seats

194 total (8 Business, 186 Economy)

Altitude & speed

Max altitude

32,150 ft

Max ground speed

421 kt

Tracked

3h 10m · 2,276 km

Note

still in progress - the track so far

Altitude (ft, max 32,150)

Ground speed (kt, max 421)

Altitude (ft, max 32,150)

Ground speed (kt, max 421)

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

Airlines

Air China (CCA)

Loong Air (CDC)

Sichuan Airlines (CSC)

China Southern Airlines (CSN)

Grand China Air (GDC)

Hebei Airlines (HBH)

Kunming Airlines (KNA)

Latest flights

Departed	Flight	Route	Reg	Aircraft	Status	Distance
2026-10-03 06:10 UTC	CSC3974	ICN → TFU Seoul → Chengdu	B-6839	Airbus A321	In progress	~2204 km est.
2026-10-01 05:59 UTC	CSC3974	ICN → TFU Seoul → Chengdu	B-6957	Airbus A321	Incomplete (signal lost)	2250 km
2026-09-29 06:19 UTC	CSC3974	ICN → TFU Seoul → Chengdu	B-6387	Airbus A321	Incomplete (signal lost)	2244 km
2026-09-26 05:56 UTC	CSC3974	ICN → TFU Seoul → Chengdu	B-9967	Airbus A321	Incomplete (signal lost)	2259 km
2026-09-24 05:59 UTC	CSC3974	ICN → TFU Seoul → Chengdu	B-325F	Airbus A321 Neo	Incomplete (signal lost)	2224 km
2026-09-19 05:50 UTC	CSC3974	ICN → TFU Seoul → Chengdu	B-6590	Airbus A321	Incomplete (signal lost)	2261 km
2026-09-17 05:43 UTC	CSC3974	ICN → TFU Seoul → Chengdu	B-6839	Airbus A321	Incomplete (signal lost)	2332 km
2026-09-15 05:59 UTC	CSC3974	ICN → TFU Seoul → Chengdu	B-9937	Airbus A321	Incomplete (signal lost)	1983 km
2026-09-12 05:42 UTC	CSC3974	ICN → TFU Seoul → Chengdu	B-6718	Airbus A321	Incomplete (signal lost)	~3973 km est. (3089 km recorded)
2026-09-10 06:14 UTC	CSC3974	ICN → TFU Seoul → Chengdu	B-1823	Airbus A321	Incomplete (signal lost)	2288 km
2026-09-08 05:46 UTC	CSC3974	ICN → ? Seoul → ?	B-6810	Airbus A321	Incomplete (signal lost)	2265 km
2026-09-05 05:39 UTC	CSC3974	ICN → ? Seoul → ?	B-6590	Airbus A321	Incomplete (signal lost)	2296 km
2026-09-03 05:53 UTC	CSC3974	ICN → ? Seoul → ?	B-6845	Airbus A321	Incomplete (signal lost)	3114 km
2026-09-01 06:04 UTC	CSC3974	ICN → ? Seoul → ?	B-6590	Airbus A321	Completed	2365 km
2026-08-29 05:49 UTC	CSC3974	ICN → ? Seoul → ?	B-6906	Airbus A321	Completed	3180 km
2026-08-27 05:48 UTC	CSC3974	ICN → ? Seoul → ?	B-6810	Airbus A321	Completed	2281 km
2026-08-25 06:08 UTC	CSC3974	ICN → ICN Seoul → Seoul	B-8328	Airbus A321	Completed	~3884 km est. (1993 km recorded)
2026-08-20 06:15 UTC	CSC3974	ICN → ICN Seoul → Seoul	B-1663	Airbus A321	Completed	~7235 km est. (3223 km recorded)
2026-08-18 06:18 UTC	CSC3974	ICN → ? Seoul → ?	B-1663	Airbus A321	Completed	2217 km
2026-08-15 06:03 UTC	CSC3974	ICN → ? Seoul → ?	B-1890	Airbus A321	Completed	3466 km
2026-08-13 06:00 UTC	CSC3974	ICN → ? Seoul → ?	B-9936	Airbus A321	Incomplete (signal lost)	2214 km
2026-08-13 02:12 UTC	CSC3974	? → ICN ? → Seoul	B-9936	Airbus A321	Completed	1826 km