AirHint found the following cheapest return flights from Salt Lake City (SLC) to Mexico City (MEX) in December 2025 (see full year).

Return flights

15 Dec - 19 Jan	Frontier Airlines
15 Dec - 16 Jan	Frontier Airlines
20 Dec - 23 Jan	Frontier Airlines
12 Dec - 14 Dec	Frontier Airlines
21 Dec - 01 Jan	Frontier Airlines
10 Dec - 17 Dec	Frontier Airlines
22 Dec - 01 Jan	Frontier Airlines
23 Dec - 02 Jan	Frontier Airlines
10 Dec - 30 Dec	Frontier Airlines
08 Dec - 28 Dec	Frontier Airlines
19 Dec - 02 Jan	Frontier Airlines
27 Dec - 04 Jan	Frontier Airlines
17 Dec - 02 Jan	Frontier Airlines
25 Dec - 04 Jan	Frontier Airlines
19 Dec - 19 Dec	Frontier Airlines
08 Dec - 28 Dec	Delta	direct

Also check the deals for one-way flights from Salt Lake City to Mexico City 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 Salt Lake City to Mexico City in December from 332€

Return flights