Cheapest return flights from London to Keflavik in May from 113€

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

13 May - 22 May Fly Play direct
17 May - 25 May Fly Play direct
17 May - 24 May Fly Play direct
17 May - 19 May Fly Play direct
17 May - 18 May Fly Play direct
17 May - 21 May Fly Play direct
20 May - 24 May Ryanair
20 May - 25 May Ryanair
29 May - 18 Jun Fly Play direct
30 May - 06 Jun Fly Play direct
20 May - 23 May Ryanair
14 May - 21 May Ryanair
29 May - 04 Jun Fly Play direct
30 May - 15 Jun Fly Play direct
29 May - 03 Jun Fly Play direct
30 May - 03 Jun Fly Play direct
29 May - 02 Jun Fly Play direct
30 May - 14 Jun Fly Play
31 May - 15 Jun Fly Play direct
16 May - 03 Jun Fly Play direct

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

Skyscanner

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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