Cheapest return flights from London to Keflavik in April from $211

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 2026 (see full year).

Return flights

02 Apr - 08 Apr Scandinavian Airlines
08 Apr - 22 Apr British Airways direct
12 Apr - 18 Apr Scandinavian Airlines
02 Apr - 09 Apr Scandinavian Airlines
02 Apr - 11 Apr Icelandair direct
01 Apr - 08 Apr Scandinavian Airlines
04 Apr - 12 Apr Icelandair direct
01 Apr - 07 Apr Scandinavian Airlines
23 Apr - 27 Apr Scandinavian Airlines
03 Apr - 08 Apr Scandinavian Airlines

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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