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

Return flights

01 Oct - 07 Oct	Frontier Airlines
01 Oct - 14 Oct	United
23 Oct - 05 Nov	United
01 Oct - 05 Nov	United
20 Oct - 20 Nov	United
02 Oct - 23 Oct	United
28 Oct - 24 Nov	Air Canada
29 Oct - 24 Nov	Air Canada
01 Oct - 13 Oct	United
18 Oct - 26 Oct	Air Canada
04 Oct - 12 Oct	United
06 Oct - 20 Oct	Delta
06 Oct - 27 Oct	Delta
28 Oct - 30 Oct	Korean Air
06 Oct - 17 Oct	Delta
13 Oct - 03 Nov	Delta
15 Oct - 20 Nov	Delta
27 Oct - 17 Nov	Air Canada
17 Oct - 03 Nov	Air Canada
29 Oct - 08 Nov	Air Canada

Also check the deals for one-way flights from New York 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 New York to Seoul in October from 947€

Return flights