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

Return flights

14 Aug - 10 Sep	WestJet
30 Aug - 03 Sep	WestJet
08 Aug - 13 Aug	WestJet
03 Aug - 18 Aug	WestJet
01 Aug - 27 Aug	WestJet
18 Aug - 25 Aug	WestJet
25 Aug - 30 Aug	WestJet
25 Aug - 01 Sep	WestJet
11 Aug - 25 Aug	WestJet
04 Aug - 18 Aug	WestJet
04 Aug - 25 Aug	WestJet
02 Aug - 17 Aug	WestJet
21 Aug - 05 Sep	WestJet
10 Aug - 16 Aug	WestJet
18 Aug - 03 Sep	WestJet
25 Aug - 25 Sep	WestJet
27 Aug - 03 Sep	WestJet

Also check the deals for one-way flights from Waterloo to Sydney 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.

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Cheapest return flights from Waterloo to Sydney in August from $3138

Return flights