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

Return flights

23 Aug - 30 Aug	HK Express
13 Aug - 21 Aug	HK Express
24 Aug - 03 Sep	Jeju Air
18 Aug - 24 Aug	Zipair
01 Aug - 10 Aug	China Southern
15 Aug - 23 Aug	Zipair
06 Aug - 12 Aug	Zipair
05 Aug - 12 Aug	StarFlyer
28 Aug - 01 Sep	Air Canada
26 Aug - 01 Sep	Air Canada
17 Aug - 23 Aug	Asiana Airlines
26 Aug - 29 Aug	Air Canada
08 Aug - 18 Aug	Greater Bay Airlines
29 Aug - 06 Sep	Air Canada

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

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 August from $1130

Return flights