AirHint found the following cheapest return flights from Waterloo (YKF) to Amsterdam (AMS) in September 2025 (see full year).

Return flights

24 Sep - 01 Oct	WestJet
24 Sep - 28 Sep	WestJet
28 Sep - 12 Oct	WestJet
26 Sep - 03 Oct	WestJet
17 Sep - 27 Sep	WestJet
14 Sep - 28 Sep	WestJet
09 Sep - 18 Sep	WestJet
26 Sep - 30 Sep	WestJet
03 Sep - 12 Sep	WestJet
09 Sep - 24 Sep	WestJet
18 Sep - 24 Sep	WestJet
21 Sep - 24 Sep	WestJet
17 Sep - 24 Sep	WestJet
23 Sep - 02 Oct	WestJet

Also check the deals for one-way flights from Waterloo to Amsterdam in September.

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 Amsterdam in September from 706€

Return flights