Cheapest return flights from London to Keflavik in May from 333€

Best time to book flights for London (LCY) to Keflavik (KEF) flights at AirHint

AirHint found the following cheapest return flights from London (LCY) to Keflavik (KEF) in May 2025 (see full year).

Return flights

09 May - 12 May Lufthansa
09 May - 10 May Air Dolomiti
09 May - 11 May Lufthansa
19 May - 26 Jun Lufthansa
02 May - 06 May Lufthansa
18 May - 22 May Lufthansa
14 May - 18 May SWISS
01 May - 07 May KLM
08 May - 12 May KLM
07 May - 18 May KLM
07 May - 14 May KLM
21 May - 02 Jun British Airways
21 May - 08 Jun KLM
26 May - 02 Jun KLM
28 May - 05 Jun KLM
18 May - 01 Jun Lufthansa
28 May - 13 Jun KLM
27 May - 05 Jun KLM
30 May - 19 Jun Lufthansa
27 May - 01 Jun KLM

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

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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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