Cheapest return flights from London to Keflavik in May from $115

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

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

Return flights

12 May - 25 May Fly Play direct
12 May - 17 May Fly Play direct
12 May - 13 May Fly Play direct
10 May - 17 May Fly Play direct
11 May - 21 May Fly Play direct
11 May - 14 May Fly Play direct
10 May - 14 May Fly Play direct
10 May - 13 May Fly Play direct
10 May - 12 May Fly Play direct
07 May - 13 May Fly Play direct
30 May - 15 Jun Fly Play direct
30 May - 04 Jun Fly Play direct
30 May - 03 Jun Fly Play direct
31 May - 03 Jun Fly Play direct
31 May - 05 Jun Fly Play direct
31 May - 15 Jun Fly Play direct
31 May - 04 Jun Fly Play direct
28 May - 04 Jun Fly Play direct
29 May - 02 Jun Fly Play direct
28 May - 03 Jun Fly Play direct

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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