AirHint found the following cheapest return flights from Kolkata (CCU) to London (LHR) in June 2026 (see full year).

Return flights

02 Jun - 12 Jun	Etihad Airways
02 Jun - 30 Jun	Air India
14 Jun - 25 Jun	Air India
02 Jun - 13 Jun	Etihad Airways
14 Jun - 26 Jun	Air India
25 Jun - 26 Jun	Air India
13 Jun - 24 Jun	Air India
14 Jun - 19 Jun	Air India
05 Jun - 15 Jun	Etihad Airways
13 Jun - 13 Jun	Air India
28 Jun - 12 Jul	Air India

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

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 June from $648

Return flights