AirHint found the following cheapest return flights from Tokyo (NRT) to Keflavik (KEF) in October 2025 (see full year).

Return flights

27 Oct - 10 Nov	China Southern
13 Oct - 01 Nov	China Southern
10 Oct - 26 Oct	WestJet
15 Oct - 22 Oct	China Southern
31 Oct - 08 Nov	Spring Airlines Japan
15 Oct - 18 Oct	China Southern
27 Oct - 03 Nov	LOT
27 Oct - 31 Oct	LOT
20 Oct - 24 Oct	LOT
15 Oct - 24 Oct	LOT
13 Oct - 21 Oct	SWISS
21 Oct - 30 Oct	Finnair
10 Oct - 17 Oct	LOT
06 Oct - 12 Oct	LOT
28 Oct - 06 Nov	Singapore Airlines
24 Oct - 01 Nov	Singapore Airlines

Also check the deals for one-way flights from Tokyo to Keflavik in October.

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 Tokyo to Keflavik in October from 789€

Return flights