Cheapest return flights from London to Keflavik in May from 170€

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

Return flights

08 May - 13 May easyJet
06 May - 13 May Ryanair
13 May - 20 May Ryanair
08 May - 16 May Ryanair
16 May - 21 May Ryanair
09 May - 17 May Ryanair
06 May - 10 May Ryanair
27 May - 10 Jun Ryanair
15 May - 18 May Ryanair
23 May - 26 May Ryanair
16 May - 17 May Ryanair
30 May - 07 Jun Ryanair
29 May - 01 Jun Ryanair
24 May - 07 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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