AI4174

For travellers

Departure · San Francisco (SFO)

Terminal ITM · Gate A1

Scheduled 10:55 · Departed 11:06 · +11 min

Board status: Departed

Airborne since 11:32 (ADS-B)

Board data from sfo, updated 209 min ago; times local to each airport.

Flight

Status

In progress

Departure

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

Scheduled departure

2026-10-03 17:55 UTC

Departed

2026-10-03 18:32 UTC

Arrival

Netaji Subhash Chandra Bose International Airport (CCU) — Kolkata, India (scheduled)

Progress

29% · ~10h 47m remaining

Distance flown

3677 km

Straight-line distance

12578 km

Aircraft

Registration

VT-ALN

Type

Boeing 777-300ER

Seats

342 total (303 Economy, 35 Business, 4 First)

CO2 (EMEP est., total)

993.5 t (2417 kg/pax Economy, 6579 kg/pax Business, 7947 kg/pax First)

Altitude & speed

Max altitude

32,000 ft

Max ground speed

518 kt

Tracked

4h 16m · 3,677 km

Note

still in progress - the track so far

Altitude (ft, max 32,000)

Ground speed (kt, max 518)

Altitude (ft, max 32,000)

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

Air India (AIC)

Latest flights

Departed	Flight	Route	Reg	Aircraft	Status	Distance
2026-10-03 18:32 UTC	AIC4174	SFO → CCU San Francisco → Kolkata	VT-ALN	Boeing 777-300ER	In progress	~12578 km est.
2026-10-03 12:48 UTC	AIC4174	CCU → DEL Kolkata → New Delhi	VT-ALK	Boeing 777-300ER	Completed (landing confirmed by airport data)	1334 km
2026-10-02 18:12 UTC	AIC4174	SFO → CCU San Francisco → Kolkata	VT-ALK	Boeing 777-300ER	Completed	13603 km
2026-10-02 12:46 UTC	AIC4174	CCU → DEL Kolkata → New Delhi	VT-ALM	Boeing 777-300ER	Completed	1344 km
2026-10-01 18:27 UTC	AIC4174	SFO → CCU San Francisco → Kolkata	VT-ALM	Boeing 777-300ER	Completed	13484 km
2026-10-01 12:23 UTC	AIC4174	CCU → DEL Kolkata → New Delhi	VT-ALR	Boeing 777-300ER	Completed	1337 km
2026-09-30 18:42 UTC	AIC4174	SFO → CCU San Francisco → Kolkata	VT-ALR	Boeing 777-300ER	Completed	13339 km
2026-09-30 12:13 UTC	AIC4174	CCU → DEL Kolkata → New Delhi	VT-ALM	Boeing 777-300ER	Completed	1344 km
2026-09-29 18:41 UTC	AIC4174	SFO → CCU San Francisco → Kolkata	VT-ALM	Boeing 777-300ER	Completed	13796 km
2026-09-29 11:49 UTC	AIC4174	CCU → DEL Kolkata → New Delhi	VT-ALN	Boeing 777-300ER	Completed	1340 km
2026-09-27 12:18 UTC	AIC4174	CCU → DEL Kolkata → New Delhi	VT-ALN	Boeing 777-300ER	Completed	1420 km
2026-09-26 12:36 UTC	AIC4174	CCU → DEL Kolkata → New Delhi	VT-ALS	Boeing 777-300ER	Completed	1399 km
2026-09-25 14:55 UTC	AIC4174	CCU → DEL Kolkata → New Delhi	VT-ALR	Boeing 777-300ER	Completed	1421 km
2026-09-24 12:57 UTC	AIC4174	CCU → DEL Kolkata → New Delhi	VT-ALK	Boeing 777-300ER	Completed	1403 km
2026-09-23 12:21 UTC	AIC4174	CCU → DEL Kolkata → New Delhi	VT-ALL	Boeing 777-300ER	Completed	1385 km
2026-09-22 12:00 UTC	AIC4174	CCU → DEL Kolkata → New Delhi	VT-ALX	Boeing 777-300ER	Completed	1340 km
2026-09-21 12:19 UTC	AIC4174	CCU → DEL Kolkata → New Delhi	VT-ALK	Boeing 777-300ER	Completed	1385 km
2026-09-20 12:22 UTC	AIC4174	CCU → DEL Kolkata → New Delhi	VT-ALO	Boeing 777-300ER	Completed	1466 km
2026-09-19 12:10 UTC	AIC4174	CCU → DEL Kolkata → New Delhi	VT-ALQ	Boeing 777-300ER	Completed (landing confirmed by airport data)	1400 km
2026-09-18 12:11 UTC	AIC4174	CCU → DEL Kolkata → New Delhi	VT-ALO	Boeing 777-300ER	Completed	1428 km
2026-09-17 12:27 UTC	AIC4174	CCU → DEL Kolkata → New Delhi	VT-ALS	Boeing 777-300ER	Completed	1454 km
2026-09-16 12:45 UTC	AIC4174	CCU → DEL Kolkata → New Delhi	VT-ALK	Boeing 777-300ER	Completed (landing confirmed by airport data)	1469 km
2026-09-15 12:27 UTC	AIC4174	CCU → DEL Kolkata → New Delhi	VT-ALS	Boeing 777-300ER	Completed	1535 km
2026-09-13 12:56 UTC	AIC4174	CCU → DEL Kolkata → New Delhi	VT-ALQ	Boeing 777-300ER	Completed	1502 km
2026-09-12 12:11 UTC	AIC4174	CCU → DEL Kolkata → New Delhi	VT-ALR	Boeing 777-300ER	Completed	1420 km
2026-09-11 12:35 UTC	AIC4174	CCU → DEL Kolkata → New Delhi	VT-ALP	Boeing 777-300ER	Completed	1632 km
2026-09-10 13:37 UTC	AIC4174	CCU → DEL Kolkata → New Delhi	VT-ALJ	Boeing 777-300ER	Completed	1446 km
2026-09-09 12:09 UTC	AIC4174	CCU → DEL Kolkata → New Delhi	VT-ALX	Boeing 777-300ER	Completed (landing confirmed by airport data)	1389 km
2026-09-08 02:59 UTC	AIC4174	FAI → DEL Fairbanks → New Delhi	VT-ALQ	Boeing 777-300ER	Incomplete (signal lost)	~9029 km est. (1041 km recorded)
2026-09-05 12:10 UTC	AIC4174	CCU → DEL Kolkata → New Delhi	VT-ALU	Boeing 777-300ER	Completed (landing confirmed by airport data)	1515 km
2026-09-04 12:09 UTC	AIC4174	CCU → DEL Kolkata → New Delhi	VT-ALJ	Boeing 777-300ER	Completed	1686 km
2026-09-03 12:53 UTC	AIC4174	CCU → DEL Kolkata → New Delhi	VT-ALU	Boeing 777-300ER	Completed	1578 km
2026-09-02 12:03 UTC	AIC4174	CCU → DEL Kolkata → New Delhi	VT-ALO	Boeing 777-300ER	Completed (landing confirmed by airport data)	1452 km
2026-09-01 12:21 UTC	AIC4174	CCU → DEL Kolkata → New Delhi	VT-ALS	Boeing 777-300ER	Completed	1493 km
2026-08-31 12:43 UTC	AIC4174	CCU → DEL Kolkata → New Delhi	VT-ALP	Boeing 777-300ER	Completed	1480 km
2026-08-29 12:18 UTC	AIC4174	CCU → DEL Kolkata → New Delhi	VT-ALS	Boeing 777-300ER	Completed	1683 km
2026-08-28 12:44 UTC	AIC4174	CCU → DEL Kolkata → New Delhi	VT-ALU	Boeing 777-300ER	Completed	1391 km
2026-08-27 12:23 UTC	AIC4174	CCU → DEL Kolkata → New Delhi	VT-ALQ	Boeing 777-300ER	Completed	1540 km
2026-08-26 13:13 UTC	AIC4174	CCU → DEL Kolkata → New Delhi	VT-ALP	Boeing 777-300ER	Completed	1520 km
2026-08-24 21:13 UTC	AIC4174	SFO → DEL San Francisco → New Delhi	VT-ALS	Boeing 777-300ER	Completed	15121 km
2026-08-24 13:20 UTC	AIC4174	CCU → DEL Kolkata → New Delhi	VT-ALJ	Boeing 777-300ER	Completed	1445 km
2026-08-23 12:37 UTC	AIC4174	CCU → DEL Kolkata → New Delhi	VT-ALX	Boeing 777-300ER	Completed	1677 km