Seoul (ICN) to Philadelphia (PHL) cheap flight deal from $447 USD in economy class – flightdeals.net

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Delta Air Lines

DLDelta Air Lines

One Way•Economy

Incheon International Airport

Seoul, South Korea

Philadelphia International Airport

Philadelphia, United States

$562 USD

-20%$447 USD

Verified Sep 20, 2025 at 5:33 PM

September 2025

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1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21$512 22$447 23$447 24$447 25$447 26$447 27$1,000 28$512 29$453 30$931 1$690 2$847 3$847 4$1,000 5$512

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54% of dates checked are available within 10% of the lowest price

Sunday, September 7th, 2025

No flight details available for this date.