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

Return flights

12 Dec - 15 Dec	WestJet	direct
05 Dec - 08 Dec	WestJet
04 Dec - 08 Dec	WestJet
11 Dec - 15 Dec	WestJet
11 Dec - 14 Dec	WestJet
18 Dec - 22 Dec	WestJet	direct
05 Dec - 07 Dec	WestJet
23 Dec - 25 Dec	WestJet
21 Dec - 25 Dec	WestJet
12 Dec - 14 Dec	WestJet
31 Dec - 07 Jan	WestJet	direct
30 Dec - 03 Jan	Delta
29 Dec - 02 Jan	WestJet
30 Dec - 03 Jan	WestJet	direct
30 Dec - 02 Jan	WestJet
23 Dec - 02 Jan	WestJet
25 Dec - 02 Jan	WestJet
28 Dec - 02 Jan	WestJet

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 $173

Return flights