AirHint found the following cheapest return flights from New York (LGA) to Seoul (ICN) in September 2026 (see full year).

Return flights

05 Sep - 19 Sep	Spirit Airlines
04 Sep - 18 Sep	Porter Airlines (Canada) Ltd
23 Sep - 20 Oct	Porter Airlines (Canada) Ltd
24 Sep - 20 Oct	Air Canada
22 Sep - 29 Sep	Air Canada
11 Sep - 25 Sep	Porter Airlines (Canada) Ltd
04 Sep - 20 Sep	Porter Airlines (Canada) Ltd
24 Sep - 16 Oct	Air Canada
23 Sep - 02 Oct	Air Canada
09 Sep - 15 Sep	Air Canada
08 Sep - 30 Sep	Japan Airlines
13 Sep - 25 Sep	Air Canada
13 Sep - 26 Sep	Air Canada
08 Sep - 24 Sep	Air Canada

Also check the deals for one-way flights from New York to Seoul in September.

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 September from $1135

Return flights