Cheapest return flights from London to Keflavik in May from 206€

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

Return flights

30 May - 10 Jun Ryanair
15 May - 24 May Ryanair
27 May - 04 Jun Ryanair
24 May - 27 May Ryanair
30 May - 06 Jun Ryanair
07 May - 11 May Ryanair
18 May - 25 May Ryanair
01 May - 04 May Ryanair
24 May - 31 May Ryanair
03 May - 10 May Ryanair
28 May - 01 Jun Ryanair

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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