Cheapest one-way flights from Seattle to Salt Lake City in December from 25€

AirHint found the following cheapest one-way flights from Seattle (SEA) to Salt Lake City (SLC) in December 2025 (see full year).

One-Way flights

08 Dec Frontier Airlines direct
11 Dec Frontier Airlines
04 Dec Frontier Airlines
28 Dec Frontier Airlines direct
15 Dec Frontier Airlines direct
07 Dec Frontier Airlines
24 Dec Frontier Airlines
22 Dec Delta direct
07 Dec Alaska Airlines direct
04 Dec Alaska Airlines direct

Also check the deals for return flights from Seattle to Salt Lake City in December.

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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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