Cheapest return flights from London to Keflavik in March from 139€

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

30 Mar - 04 Apr British Airways direct
17 Mar - 21 Mar British Airways direct
28 Mar - 04 Apr British Airways direct
02 Mar - 14 Mar British Airways direct
10 Mar - 21 Mar British Airways direct
23 Mar - 27 Mar British Airways direct
05 Mar - 14 Mar British Airways direct
05 Mar - 07 Mar British Airways direct
18 Mar - 21 Mar British Airways direct
03 Mar - 07 Mar British Airways direct
23 Mar - 26 Mar British Airways direct
29 Mar - 02 Apr British Airways direct
26 Mar - 28 Mar British Airways direct
08 Mar - 04 Apr Icelandair direct
28 Mar - 02 Apr British Airways direct
29 Mar - 03 Apr Icelandair direct
31 Mar - 03 Apr Icelandair direct
30 Mar - 29 Apr Icelandair direct
31 Mar - 10 Apr Icelandair direct
28 Mar - 06 Apr British Airways 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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