Cheapest return flights from Philadelphia to Seoul in December from 780€

AirHint found the following cheapest return flights from Philadelphia (PHL) to Seoul (ICN) in December 2025 (see full year).

Return flights

03 Dec - 10 Dec Delta
06 Dec - 20 Dec United
24 Dec - 18 Jan Delta
18 Dec - 18 Jan Delta
21 Dec - 21 Jan Delta
18 Dec - 31 Jan Delta
18 Dec - 20 Jan Delta
21 Dec - 20 Jan Delta
11 Dec - 03 Jan United
21 Dec - 04 Jan Delta

Also check the deals for one-way flights from Philadelphia to Seoul in December.

Skyscanner

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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