Cheapest return flights from London to Keflavik in March from $166

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 March 2025 (see full year).

Return flights

25 Mar - 29 Mar Icelandair direct
22 Mar - 25 Mar Icelandair direct
24 Mar - 31 Mar Scandinavian Airlines
22 Mar - 29 Mar Icelandair direct
18 Mar - 25 Mar Icelandair direct
25 Mar - 28 Mar Icelandair direct
15 Mar - 18 Mar Icelandair direct
27 Mar - 03 Apr Scandinavian Airlines
15 Mar - 19 Mar Icelandair direct
29 Mar - 03 Apr Icelandair direct
24 Mar - 27 Mar Scandinavian Airlines
24 Mar - 26 Mar Scandinavian Airlines
26 Mar - 03 Apr Icelandair direct
31 Mar - 04 Apr British Airways
30 Mar - 03 Apr Scandinavian Airlines
28 Mar - 03 Apr British Airways
31 Mar - 03 Apr British Airways
31 Mar - 02 Apr British Airways
28 Mar - 01 Apr British Airways
25 Mar - 01 Apr Icelandair

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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