Cheapest return flights from London to Keflavik in April from $464

Best time to book flights for London (LCY) to Keflavik (KEF) flights at AirHint

AirHint found the following cheapest return flights from London (LCY) to Keflavik (KEF) in April 2025 (see full year).

Return flights

28 Apr - 10 May Lufthansa
28 Apr - 05 May Lufthansa
28 Apr - 01 May Lufthansa
30 Apr - 02 May SWISS
30 Apr - 20 May SWISS
27 Apr - 01 May Lufthansa
30 Apr - 07 May KLM
29 Apr - 18 May SWISS
28 Apr - 29 Apr Lufthansa
29 Apr - 01 May SWISS
29 Apr - 02 May SWISS
29 Apr - 30 Apr SWISS
30 Apr - 30 Apr KLM
28 Apr - 30 Apr KLM
27 Apr - 29 Apr Lufthansa
27 Apr - 30 Apr KLM

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

Skyscanner

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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