AirHint found the following cheapest return flights from Phoenix (PHX) to Seoul (ICN) in October 2025 (see full year).

Return flights

24 Oct - 31 Oct	American Airlines
03 Oct - 10 Oct	American Airlines
02 Oct - 07 Nov	American Airlines
14 Oct - 29 Oct	American Airlines
02 Oct - 04 Nov	American Airlines
16 Oct - 25 Oct	WestJet
04 Oct - 01 Nov	Hawaiian Airlines
19 Oct - 01 Nov	Hawaiian Airlines
17 Oct - 24 Oct	Delta

Also check the deals for one-way flights from Phoenix to Seoul in October.

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 Phoenix to Seoul in October from $865

Return flights