Cheapest return flights from Sydney to Keflavik in August from $1537

Best time to book flights for Sydney (SYD) to Keflavik (KEF) flights at AirHint

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

Return flights

20 Aug - 30 Aug Singapore Airlines
19 Aug - 26 Aug Qatar Airways

Also check the deals for one-way flights from Sydney to Keflavik in August.

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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