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

Return flights

07 Sep - 09 Sep	Air Canada
04 Sep - 11 Sep	Air Canada
04 Sep - 13 Sep	Air Canada
09 Sep - 17 Sep	Korean Air
01 Sep - 16 Sep	Korean Air
09 Sep - 30 Sep	Korean Air
21 Sep - 06 Oct	Korean Air
14 Sep - 25 Sep	Korean Air
18 Sep - 30 Sep	Korean Air
17 Sep - 25 Sep	Korean Air
01 Sep - 19 Sep	Korean Air
29 Sep - 04 Oct	Korean Air
28 Sep - 04 Oct	Porter Airlines (Canada) Ltd

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.

Book a cheap hotel in Seoul

Cheap car rent in Seoul

Cheapest return flights from New York to Seoul in September from 1163€

Return flights