Cheapest return flights from Sydney to Keflavik in September from 1098€

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

Return flights

09 Sep - 16 Sep China Southern
23 Sep - 26 Sep British Airways
29 Sep - 07 Oct Etihad Airways
08 Sep - 27 Sep Etihad Airways
22 Sep - 02 Oct Etihad Airways

Also check the deals for one-way flights from Sydney 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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