AirHint found the following cheapest return flights from Southend (SEN) to Seoul (ICN) in September 2026 (see full year).
Return flights
| 10 Sep - 20 Sep | easyJet | ||
| 17 Sep - 27 Sep | easyJet | ||
| 07 Sep - 14 Sep | easyJet | ||
| 24 Sep - 10 Oct | easyJet | ||
| 14 Sep - 24 Sep | easyJet |
Also check the deals for one-way flights from Southend to Seoul in September.
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