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

Return flights

25 Aug - 31 Aug	Air Canada
28 Aug - 01 Sep	Air Canada
06 Aug - 17 Sep	British Airways
08 Aug - 17 Sep	British Airways
08 Aug - 16 Sep	Air Canada
12 Aug - 28 Aug	Air Canada
15 Aug - 24 Aug	Air Canada
22 Aug - 31 Aug	Air Canada
18 Aug - 24 Aug	Thai Airways
23 Aug - 30 Aug	Air Canada
24 Aug - 30 Aug	Air Canada
20 Aug - 29 Aug	Air Canada
18 Aug - 29 Aug	Air Canada
01 Aug - 10 Aug	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 $1399

Return flights