Cheapest return flights from London to Keflavik in March from $186

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

Return flights

04 Mar - 11 Mar Icelandair direct
11 Mar - 20 Mar Icelandair direct
02 Mar - 06 Mar Icelandair direct
03 Mar - 12 Mar Icelandair direct
10 Mar - 17 Mar Icelandair direct
18 Mar - 25 Mar Icelandair direct
20 Mar - 27 Mar British Airways direct
08 Mar - 19 Mar British Airways direct
11 Mar - 14 Mar Icelandair direct
08 Mar - 10 Mar British Airways direct
25 Mar - 01 Apr Icelandair direct
30 Mar - 01 Apr Scandinavian Airlines
24 Mar - 01 Apr Scandinavian Airlines
24 Mar - 01 Apr Icelandair direct
25 Mar - 02 Apr Icelandair direct
24 Mar - 03 Apr Icelandair direct
26 Mar - 01 Apr Scandinavian Airlines
26 Mar - 09 Apr Scandinavian Airlines
30 Mar - 07 Apr Scandinavian Airlines
25 Mar - 08 Apr Scandinavian Airlines

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

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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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