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

Return flights

22 Aug - 29 Aug	WestJet
01 Aug - 08 Aug	WestJet
20 Aug - 29 Aug	WestJet
17 Aug - 10 Sep	WestJet
21 Aug - 07 Sep	WestJet
23 Aug - 30 Aug	WestJet
05 Aug - 26 Aug	WestJet
05 Aug - 20 Aug	WestJet
04 Aug - 14 Aug	WestJet
05 Aug - 12 Aug	WestJet
04 Aug - 13 Aug	WestJet
08 Aug - 29 Aug	WestJet
28 Aug - 08 Sep	WestJet

Also check the deals for one-way flights from Waterloo to Warsaw 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 Warsaw in August from $2083

Return flights