Cheapest return flights from London to Keflavik in April from $292

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

23 Apr - 08 May SWISS
02 Apr - 03 Apr Lufthansa
02 Apr - 08 Apr SWISS
23 Apr - 28 Apr SWISS
28 Apr - 01 May Lufthansa
02 Apr - 09 Apr KLM
30 Apr - 07 May KLM
14 Apr - 23 Apr KLM
09 Apr - 13 Apr KLM
09 Apr - 23 Apr KLM
22 Apr - 29 Apr British Airways
10 Apr - 13 Apr KLM
10 Apr - 14 Apr KLM
30 Apr - 05 May SWISS
29 Apr - 07 May British Airways
29 Apr - 09 May British Airways
28 Apr - 07 May KLM
28 Apr - 05 May Lufthansa
30 Apr - 01 May Lufthansa
25 Apr - 01 May Lufthansa

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

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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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