Cheapest return IAH–ICN flights, May

AirHint found the following cheapest return flights from Houston (IAH) to Seoul (ICN) in May 2026 (see full year).

Return flights

04 May - 11 May Zipair
04 May - 08 May Zipair
11 May - 30 May Frontier Airlines
13 May - 16 May Frontier Airlines
01 May - 06 May Zipair
26 May - 02 Jun Frontier Airlines
03 May - 10 May Frontier Airlines
14 May - 07 Jun Frontier Airlines
25 May - 05 Jun WestJet
08 May - 28 May Viva
30 May - 11 Jun Frontier Airlines
15 May - 25 May Frontier Airlines
18 May - 29 May Frontier Airlines
12 May - 26 May Frontier Airlines
20 May - 16 Jun Air Canada

Also check the deals for one-way flights from Houston to Seoul in May.

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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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