AirHint found the following cheapest return flights from Tokyo (TYO) to Keflavik (KEF) in September 2026 (see full year).

Return flights

21 Sep - 28 Sep	Vietnam Airlines
18 Sep - 27 Sep	Vietnam Airlines
12 Sep - 22 Sep	Vietnam Airlines
11 Sep - 18 Sep	Vietnam Airlines
19 Sep - 30 Sep	Vietnam Airlines
24 Sep - 01 Oct	Air Canada
29 Sep - 06 Oct	Air Canada
16 Sep - 23 Sep	Air Canada
11 Sep - 27 Sep	Air Canada
14 Sep - 21 Sep	Air Canada
10 Sep - 21 Sep	Air Canada
04 Sep - 13 Sep	Air Canada
19 Sep - 03 Oct	Air Canada
23 Sep - 02 Oct	Air Canada
25 Sep - 02 Oct	Air Canada

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

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 September from 889€

Return flights