AirHint found the following cheapest return flights from Phoenix (PHX) to Seoul (ICN) in April 2026 (see full year).

Return flights

10 Apr - 02 May	United
09 Apr - 02 May	United
16 Apr - 28 May	United
10 Apr - 08 May	United
08 Apr - 02 May	United
07 Apr - 17 Apr	Delta
05 Apr - 16 Apr	Delta
27 Apr - 10 May	Delta
26 Apr - 04 May	Delta
10 Apr - 01 May	Delta
30 Apr - 29 May	Delta
09 Apr - 01 May	Delta
05 Apr - 12 Apr	Frontier Airlines

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

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 April from $853

Return flights