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

Return flights

14 Sep - 19 Sep	WestJet
14 Sep - 17 Sep	WestJet
18 Sep - 21 Sep	WestJet
11 Sep - 14 Sep	WestJet
21 Sep - 25 Sep	WestJet
18 Sep - 22 Sep	WestJet
11 Sep - 20 Sep	WestJet
18 Sep - 23 Sep	WestJet
18 Sep - 25 Sep	WestJet
21 Sep - 23 Sep	WestJet
29 Sep - 01 Oct	WestJet
29 Sep - 04 Oct	WestJet
27 Sep - 03 Oct	WestJet
24 Sep - 01 Oct	WestJet

Also check the deals for one-way flights from Waterloo to Las Vegas 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 Las Vegas in September from $137

Return flights