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

Return flights

28 Dec - 28 Jan	Flair Airlines
22 Dec - 20 Jan	WestJet
25 Dec - 15 Jan	WestJet
24 Dec - 27 Jan	WestJet
14 Dec - 23 Dec	Philippine Airlines
16 Dec - 24 Dec	Cathay Pacific
24 Dec - 14 Jan	WestJet
15 Dec - 24 Dec	Flair Airlines
17 Dec - 25 Dec	Cathay Pacific
15 Dec - 25 Dec	Cathay Pacific
17 Dec - 24 Dec	Cathay Pacific
15 Dec - 22 Dec	Cathay Pacific
15 Dec - 23 Dec	Flair Airlines
26 Dec - 12 Jan	Flair Airlines
16 Dec - 12 Jan	Flair Airlines
28 Dec - 12 Jan	Flair Airlines
18 Dec - 14 Jan	WestJet
24 Dec - 01 Jan	WestJet
16 Dec - 26 Dec	Cathay Pacific
17 Dec - 26 Dec	Cathay Pacific

Also check the deals for one-way flights from Calgary to Bangkok 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 Bangkok in December from $947

Return flights