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

Return flights

05 Dec - 13 Jan	Delta
06 Dec - 13 Jan	Delta
14 Dec - 30 Dec	Korean Air
15 Dec - 30 Dec	Korean Air
14 Dec - 29 Dec	Korean Air
04 Dec - 09 Jan	Delta
24 Dec - 31 Dec	Frontier Airlines
21 Dec - 29 Dec	Asiana Airlines
21 Dec - 30 Jan	Asiana Airlines
11 Dec - 01 Jan	Frontier Airlines
08 Dec - 06 Jan	Delta
13 Dec - 13 Jan	Delta
17 Dec - 06 Jan	Frontier Airlines
13 Dec - 02 Jan	Frontier Airlines
12 Dec - 02 Jan	Frontier Airlines
11 Dec - 30 Dec	Delta	direct
15 Dec - 30 Dec	Delta	direct

Also check the deals for one-way flights from Salt Lake City to Seoul 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.

Book a cheap hotel in Seoul

Cheap car rent in Seoul

Cheapest return flights from Salt Lake City to Seoul in December from 951€

Return flights