Cheapest return flights from Singapore to Keflavik in September from $863

Best time to book flights for Singapore (SIN) to Keflavik (KEF) flights at AirHint

AirHint found the following cheapest return flights from Singapore (SIN) to Keflavik (KEF) in September 2025 (see full year).

Return flights

29 Sep - 08 Oct Scoot Tigerair
25 Sep - 07 Oct Finnair
01 Sep - 12 Sep Finnair
04 Sep - 19 Sep Finnair
04 Sep - 18 Sep Finnair
04 Sep - 16 Sep Finnair
11 Sep - 19 Sep Finnair
11 Sep - 21 Sep Finnair
09 Sep - 22 Sep Finnair
11 Sep - 25 Sep Finnair
27 Sep - 19 Oct Finnair
21 Sep - 30 Sep Scoot Tigerair
20 Sep - 04 Oct Finnair
13 Sep - 20 Sep Finnair
23 Sep - 07 Oct Finnair
26 Sep - 04 Oct Finnair
27 Sep - 11 Oct Finnair
26 Sep - 11 Oct Finnair
26 Sep - 10 Oct Finnair

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

Skyscanner

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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