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

Return flights

27 Dec - 10 Jan	Frontier Airlines
27 Dec - 29 Dec	Frontier Airlines
17 Dec - 22 Dec	Frontier Airlines
21 Dec - 28 Dec	Frontier Airlines
20 Dec - 27 Dec	Frontier Airlines
19 Dec - 06 Jan	Frontier Airlines
19 Dec - 06 Jan	Aeromexico	direct
27 Dec - 29 Dec	Aeromexico	direct
17 Dec - 22 Dec	Aeromexico	direct
20 Dec - 27 Dec	Aeromexico	direct
21 Dec - 28 Dec	Delta	direct

Also check the deals for one-way flights from Salt Lake City to Guadalajara 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 Guadalajara in December from $521

Return flights