AirHint found the following cheapest return flights from Houston (HOU) to Seoul (ICN) in December 2025 (see full year).

Return flights

04 Dec - 11 Dec	Frontier Airlines
06 Dec - 18 Dec	Frontier Airlines
03 Dec - 05 Dec	Frontier Airlines
07 Dec - 17 Jan	Spirit Airlines
05 Dec - 12 Dec	Frontier Airlines
13 Dec - 16 Dec	Spirit Airlines
26 Dec - 09 Jan	Frontier Airlines
12 Dec - 17 Dec	Frontier Airlines
27 Dec - 09 Jan	Frontier Airlines
11 Dec - 12 Jan	WestJet
21 Dec - 09 Jan	Frontier Airlines
13 Dec - 29 Dec	Spirit Airlines
16 Dec - 22 Dec	Frontier Airlines
14 Dec - 10 Jan	Frontier Airlines
25 Dec - 01 Jan	Frontier Airlines
10 Dec - 30 Dec	United
20 Dec - 10 Jan	Frontier Airlines
09 Dec - 07 Jan	Delta
17 Dec - 11 Jan	United

Also check the deals for one-way flights from Houston 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.

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Cheapest return flights from Houston to Seoul in December from 795€

Return flights