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

Return flights

15 Aug - 22 Aug	Scoot Tigerair
09 Aug - 16 Aug	Air India
28 Aug - 07 Sep	Etihad Airways
23 Aug - 30 Aug	Qatar Airways
16 Aug - 23 Aug	Qatar Airways
07 Aug - 14 Aug	Air Canada
08 Aug - 17 Aug	Air Canada
03 Aug - 07 Sep	Singapore Airlines
18 Aug - 10 Sep	Emirates

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

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.

Book a cheap hotel in Keflavik

Cheap car rent in Keflavik

Cheapest return flights from Sydney to Keflavik in August from 1213€

Return flights