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

Return flights

02 Dec - 14 Dec	WestJet
11 Dec - 14 Dec	WestJet	direct
15 Dec - 06 Jan	WestJet
16 Dec - 06 Jan	WestJet	direct
04 Dec - 11 Dec	WestJet
17 Dec - 06 Jan	WestJet
02 Dec - 14 Dec	Delta	direct
23 Dec - 01 Jan	WestJet
22 Dec - 29 Dec	WestJet	direct
17 Dec - 26 Dec	WestJet
20 Dec - 04 Jan	WestJet
17 Dec - 06 Jan	WestJet	direct
18 Dec - 31 Dec	Delta
27 Dec - 03 Jan	WestJet	direct
20 Dec - 23 Dec	WestJet

Also check the deals for one-way flights from Calgary to Atlanta 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 Atlanta in December from 122€

Return flights