Cheapest return flights from Singapore to Keflavik in September from 875€

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

24 Sep - 07 Oct Qatar Airways
22 Sep - 30 Sep Finnair
26 Sep - 07 Oct Qatar Airways
25 Sep - 05 Oct KLM
22 Sep - 07 Oct Finnair
23 Sep - 07 Oct Finnair
26 Sep - 08 Oct British Airways
26 Sep - 09 Oct British Airways
25 Sep - 09 Oct British Airways
09 Sep - 19 Sep Finnair
09 Sep - 24 Sep Finnair
02 Sep - 17 Sep British Airways
25 Sep - 07 Oct Qatar Airways
29 Sep - 20 Oct Finnair
15 Sep - 25 Sep Finnair
18 Sep - 29 Sep Finnair
15 Sep - 26 Sep Finnair
01 Sep - 28 Sep Finnair
03 Sep - 13 Sep Finnair
17 Sep - 20 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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