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

Return flights

14 Oct - 21 Oct	Air Canada
14 Oct - 22 Oct	Air Canada
15 Oct - 23 Oct	Air Canada
14 Oct - 23 Oct	Air Canada
15 Oct - 22 Oct	Air Canada
16 Oct - 22 Oct	Air Canada
16 Oct - 23 Oct	Air Canada
16 Oct - 01 Nov	Allegiant Air
16 Oct - 25 Oct	Allegiant Air
16 Oct - 26 Oct	Allegiant Air
17 Oct - 27 Oct	Allegiant Air
01 Oct - 03 Nov	Delta
18 Oct - 02 Nov	Delta

Also check the deals for one-way flights from Jacksonville 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 Jacksonville to Seoul in October from 823€

Return flights