Cheapest return flights from London to Keflavik in April from $161

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

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

Return flights

23 Apr - 30 Apr Icelandair direct
25 Apr - 28 Apr Icelandair direct
23 Apr - 29 Apr Icelandair direct
24 Apr - 30 Apr Icelandair direct
22 Apr - 28 Apr Icelandair direct
24 Apr - 28 Apr Icelandair direct
14 Apr - 23 Apr Scandinavian Airlines
22 Apr - 29 Apr Icelandair direct
26 Apr - 28 Apr Icelandair direct
25 Apr - 30 Apr Icelandair direct
27 Apr - 04 May British Airways direct
26 Apr - 15 May Icelandair
29 Apr - 06 May Icelandair direct
23 Apr - 08 May Icelandair direct
29 Apr - 11 May Icelandair direct
27 Apr - 01 May British Airways direct
26 Apr - 04 May British Airways direct
30 Apr - 10 May Icelandair direct
30 Apr - 06 May Icelandair direct
30 Apr - 08 May SWISS

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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