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

Return flights

27 Jul - 27 Aug	WestJet
31 Jul - 23 Aug	WestJet
31 Jul - 31 Aug	WestJet
18 Jul - 14 Aug	WestJet
20 Jul - 31 Aug	WestJet
26 Jul - 02 Aug	WestJet
25 Jul - 09 Aug	WestJet
16 Jul - 30 Jul	WestJet
11 Jul - 14 Jul	WestJet
08 Jul - 23 Aug	WestJet
10 Jul - 17 Jul	WestJet
09 Jul - 05 Aug	WestJet
09 Jul - 30 Jul	WestJet
10 Jul - 18 Jul	WestJet
11 Jul - 20 Jul	WestJet
11 Jul - 18 Jul	WestJet

Also check the deals for one-way flights from Waterloo to Warsaw in July.

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 July from 1986€

Return flights