AirHint found the following cheapest return flights from Kolkata (CCU) to London (LGW) in August 2025 (see full year).

Return flights

01 Aug - 31 Aug	Qatar Airways
07 Aug - 18 Aug	Emirates
01 Aug - 18 Aug	Emirates
05 Aug - 06 Sep	Qatar Airways
10 Aug - 21 Aug	Emirates
01 Aug - 23 Aug	Emirates
01 Aug - 24 Aug	Emirates
03 Aug - 19 Aug	Emirates
06 Aug - 14 Aug	Qatar Airways
03 Aug - 13 Aug	Qatar Airways
07 Aug - 17 Aug	IndiGo
02 Aug - 03 Sep	Qatar Airways
20 Aug - 06 Sep	IndiGo
28 Aug - 04 Sep	IndiGo
21 Aug - 13 Sep	Qatar Airways

Also check the deals for one-way flights from Kolkata to London in August.

The deals are updated regularly. The prices may go up as tickets are purchased by other travellers. Only the cheapest flights are offered. Select a price to book and secure these cheap prices.

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Cheapest return flights from Kolkata to London in August from $690

Return flights