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

Return flights

01 Dec - 05 Dec	WestJet
01 Dec - 10 Dec	WestJet
16 Dec - 17 Dec	WestJet
11 Dec - 15 Dec	WestJet
11 Dec - 14 Dec	WestJet
08 Dec - 15 Dec	WestJet
01 Dec - 25 Dec	WestJet
16 Dec - 30 Dec	WestJet
11 Dec - 20 Dec	WestJet
27 Dec - 29 Dec	WestJet
27 Dec - 04 Jan	WestJet
27 Dec - 03 Jan	WestJet
30 Dec - 04 Jan	WestJet

Also check the deals for one-way flights from Waterloo to Las Vegas in December.

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 December from $151

Return flights