Cheapest return flights from Singapore to Keflavik in September from $876

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

Return flights

21 Sep - 01 Oct SWISS
05 Sep - 19 Sep Etihad Airways
05 Sep - 18 Sep Etihad Airways
20 Sep - 01 Oct KLM
24 Sep - 11 Oct Scoot
24 Sep - 01 Oct Finnair
19 Sep - 28 Sep Finnair
18 Sep - 30 Sep Finnair
10 Sep - 20 Sep Finnair
01 Sep - 06 Sep Finnair
10 Sep - 19 Sep Finnair
10 Sep - 22 Sep British Airways

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

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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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