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

Return flights

02 Mar - 10 Mar	Etihad Airways
07 Mar - 14 Mar	Etihad Airways
13 Mar - 22 Mar	IndiGo
11 Mar - 18 Mar	IndiGo
04 Mar - 13 Mar	Etihad Airways
09 Mar - 21 Mar	IndiGo
26 Mar - 05 Apr	IndiGo
20 Mar - 06 Apr	IndiGo
31 Mar - 13 Apr	IndiGo
14 Mar - 26 Apr	IndiGo
12 Mar - 15 Mar	IndiGo
16 Mar - 13 Apr	Etihad Airways
05 Mar - 14 Mar	IndiGo
13 Mar - 21 Mar	IndiGo
06 Mar - 26 Apr	Etihad Airways
15 Mar - 22 Mar	IndiGo
27 Mar - 09 Apr	IndiGo
31 Mar - 30 Apr	IndiGo
27 Mar - 07 Apr	Etihad Airways
20 Mar - 08 Apr	Air India

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

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 March from $620

Return flights