Cheapest return flights from London to Keflavik in March from $198

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

Return flights

08 Mar - 19 Mar British Airways
01 Mar - 05 Mar British Airways direct
08 Mar - 19 Mar British Airways direct
02 Mar - 06 Mar Icelandair direct
04 Mar - 08 Mar Icelandair direct
07 Mar - 10 Mar Icelandair direct
13 Mar - 17 Mar Icelandair direct
12 Mar - 17 Mar Icelandair direct
09 Mar - 13 Mar Icelandair direct
03 Mar - 07 Mar Icelandair direct
28 Mar - 01 Apr British Airways
21 Mar - 04 Apr Icelandair direct
28 Mar - 11 Apr Icelandair direct
20 Mar - 04 Apr British Airways
27 Mar - 02 Apr Scandinavian Airlines
29 Mar - 19 Apr Icelandair
29 Mar - 02 Apr LOT

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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