Cheapest return flights from London to Keflavik in April from $191

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

Return flights

07 Apr - 12 Apr Icelandair direct
22 Apr - 25 Apr Icelandair direct
22 Apr - 29 Apr Icelandair direct
15 Apr - 19 Apr Icelandair direct
07 Apr - 19 Apr Icelandair direct
10 Apr - 12 Apr Icelandair direct
15 Apr - 22 Apr Icelandair direct
24 Apr - 27 Apr Icelandair direct
12 Apr - 19 Apr Icelandair direct
23 Apr - 28 Apr Icelandair direct
29 Apr - 02 May Icelandair direct
29 Apr - 06 May Icelandair direct
29 Apr - 03 May Icelandair direct
29 Apr - 05 May Icelandair direct
27 Apr - 03 May Icelandair direct
30 Apr - 06 May British Airways direct
26 Apr - 02 May British Airways direct
25 Apr - 01 May British Airways direct
28 Apr - 01 May Icelandair direct
28 Apr - 04 May Icelandair direct

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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