Cheapest return flights from London to Keflavik in December from 108€

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

Return flights

03 Dec - 07 Jan Fly Play direct
10 Dec - 12 Dec Fly Play direct
01 Dec - 06 Dec Fly Play direct
03 Dec - 12 Dec Fly Play direct
01 Dec - 07 Dec Fly Play direct
08 Dec - 14 Dec Fly Play direct
03 Dec - 10 Dec Fly Play direct
06 Dec - 07 Dec Fly Play direct
02 Dec - 06 Dec Fly Play direct
01 Dec - 05 Dec Fly Play direct
08 Dec - 12 Dec Fly Play direct
29 Dec - 08 Jan Fly Play direct
30 Dec - 07 Jan Fly Play direct
29 Dec - 01 Jan Fly Play direct
30 Dec - 01 Jan Fly Play direct
27 Dec - 06 Jan Fly Play direct
31 Dec - 04 Jan Fly Play direct
30 Dec - 04 Jan Fly Play direct
29 Dec - 04 Jan Fly Play direct
30 Dec - 02 Jan Fly Play direct

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

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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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