Cheapest return flights from Kolkata to London in April from $638

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

Return flights

02 Apr - 08 Apr IndiGo
03 Apr - 19 Apr IndiGo
03 Apr - 17 Apr IndiGo
20 Apr - 27 Apr IndiGo
01 Apr - 30 Apr Air India
22 Apr - 29 Apr Air India
23 Apr - 02 May Air India
21 Apr - 30 Apr Air India
21 Apr - 25 Apr Air India
01 Apr - 17 Apr Air India
02 Apr - 16 Apr Air India
20 Apr - 02 May Emirates

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

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