Cheapest one-way flights from Philadelphia to Seoul in September from $505
AirHint found the following cheapest one-way flights from Philadelphia (PHL) to Seoul (ICN) in September 2025 (see full year).
One-Way flights
| 26 Sep | Air Canada | ||
| 19 Sep | Air Canada | ||
| 20 Sep | Air Canada | ||
| 25 Sep | Air Canada | ||
| 21 Sep | Air Canada | ||
| 22 Sep | Air Canada | ||
| 23 Sep | Air Canada | ||
| 24 Sep | Air Canada |
Also check the deals for return flights from Philadelphia 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.
