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

Return flights

31 Dec - 07 Jan	WestJet
31 Dec - 06 Jan	WestJet	direct
31 Dec - 04 Jan	WestJet
30 Dec - 01 Jan	WestJet
31 Dec - 07 Jan	WestJet	direct
31 Dec - 04 Jan	WestJet	direct
30 Dec - 03 Jan	Flair Airlines
30 Dec - 02 Jan	Flair Airlines
29 Dec - 04 Jan	WestJet
29 Dec - 01 Jan	WestJet
30 Dec - 31 Dec	Flair Airlines
30 Dec - 31 Dec	WestJet	direct
28 Dec - 31 Dec	WestJet
28 Dec - 28 Dec	WestJet
28 Dec - 28 Dec	WestJet	direct
28 Dec - 31 Dec	WestJet	direct

Also check the deals for one-way flights from Calgary 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 Calgary to Las Vegas in December from $298

Return flights