Cheapest return flights from London to Keflavik in March from $174

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

Return flights

10 Mar - 20 Mar British Airways direct
11 Mar - 25 Mar Icelandair direct
15 Mar - 20 Mar British Airways direct
01 Mar - 10 Mar British Airways direct
01 Mar - 08 Mar Icelandair direct
31 Mar - 08 Apr Scandinavian Airlines
17 Mar - 24 Mar Icelandair direct
14 Mar - 19 Mar Scandinavian Airlines
07 Mar - 14 Mar Icelandair direct
01 Mar - 07 Mar Icelandair direct
05 Mar - 12 Mar Icelandair direct
31 Mar - 06 Apr Scandinavian Airlines
29 Mar - 06 Apr Icelandair
30 Mar - 06 Apr Scandinavian Airlines
25 Mar - 01 Apr Icelandair
31 Mar - 07 Apr Scandinavian Airlines
27 Mar - 03 Apr Icelandair
25 Mar - 01 Apr Icelandair direct
30 Mar - 05 Apr Icelandair direct
29 Mar - 05 Apr Icelandair direct

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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