Cheapest return flights from Philadelphia to Seoul in April from $978

Best time to book flights for Philadelphia (PHL) to Seoul (ICN) flights at AirHint

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

Return flights

22 Apr - 12 May Frontier Airlines
20 Apr - 22 May Frontier Airlines
19 Apr - 10 May Frontier Airlines
22 Apr - 13 May Air Canada
27 Apr - 22 May Air Canada
19 Apr - 13 May Air Canada
20 Apr - 10 May Frontier Airlines
19 Apr - 11 May Frontier Airlines
09 Apr - 12 Apr Air Canada
22 Apr - 11 May Frontier Airlines
20 Apr - 11 May Air Canada
17 Apr - 22 Apr American Airlines
15 Apr - 22 Apr American Airlines
08 Apr - 30 Apr Spirit Airlines
15 Apr - 30 Apr Frontier Airlines
10 Apr - 20 Apr Frontier Airlines

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

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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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