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.
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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