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Cheap flights from Seoul, South Korea to Philadelphia, USA for only $541 USD roundtrip with United Airlines.
DEPART:
Seoul, South Korea
ARRIVE:
Philadelphia, USA
RETURN:
Seoul, South Korea
DATES:
Availability from September to December 2025
Example dates:
16th-22nd Sep
16th-23rd Sep
17th-23rd Sep
22nd-29th Sep
23rd-29th Sep
23rd-30th Sep
24th-30th Sep
24th Sep – 1st Oct
14th-21st Oct
15th-21st Oct
20th-27th Oct
21st-27th Oct
21st-28th Oct
22nd-28th Oct
27th Oct – 3rd Nov
29th Oct – 4th Nov
29th Oct – 5th Nov
4th-10th Nov
4th-11th Nov
5th-11th Nov
5th-12th Nov
6th-12th Nov
6th-13th Nov
10th-17th Nov
11th-17th Nov
11th-18th Nov
12th-18th Nov
18th-24th Nov
18th-25th Nov
19th-25th Nov
26th Nov – 3rd Dec
and more…
STOPS:
San Francisco
AIRLINES:
United Airlines
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