Cheapest return flights from London to Keflavik in April from 229€

AirHint found the following cheapest return flights from London (LCY) to Keflavik (KEF) in April 2026 (see full year).

Return flights

22 Apr - 25 Apr SWISS
15 Apr - 23 Apr SWISS
16 Apr - 29 Apr KLM
22 Apr - 27 Apr Lufthansa
16 Apr - 19 Apr KLM
22 Apr - 26 Apr SWISS
12 Apr - 15 Apr KLM
23 Apr - 29 Apr KLM
29 Apr - 12 May SWISS
16 Apr - 21 Apr Lufthansa
15 Apr - 28 Apr SWISS
12 Apr - 14 May KLM
29 Apr - 06 May KLM
30 Apr - 08 May KLM
30 Apr - 14 May KLM
30 Apr - 10 May KLM
29 Apr - 13 May KLM
28 Apr - 08 May KLM
29 Apr - 04 May SWISS
28 Apr - 04 May British Airways

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

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