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

Return flights

31 Jan - 07 Feb	Ryanair
31 Jan - 01 Feb	Ryanair
31 Jan - 14 Feb	Ryanair
28 Jan - 31 Jan	Ryanair
28 Jan - 01 Feb	Ryanair
19 Jan - 23 Jan	Ryanair
31 Jan - 02 Feb	Ryanair
31 Jan - 05 Feb	Ryanair
19 Jan - 21 Jan	Ryanair
26 Jan - 29 Jan	Ryanair
28 Jan - 02 Feb	Ryanair
24 Jan - 27 Jan	Ryanair
29 Jan - 01 Feb	Ryanair
17 Jan - 24 Jan	Ryanair
28 Jan - 03 Feb	Ryanair
17 Jan - 23 Jan	Ryanair
31 Jan - 08 Feb	Ryanair
17 Jan - 27 Jan	Ryanair
19 Jan - 22 Jan	Ryanair
29 Jan - 31 Jan	Ryanair

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

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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Cheapest return flights from London to Keflavik in January from 160€

Return flights