AirHint found the following cheapest return flights from Southend (SEN) to Seoul (ICN) in April 2026 (see full year).

Return flights

16 Apr - 02 May	easyJet
03 Apr - 16 Apr	easyJet
15 Apr - 13 May	easyJet
02 Apr - 15 Apr	easyJet
02 Apr - 16 Apr	easyJet
02 Apr - 12 Apr	easyJet
26 Apr - 09 May	easyJet
26 Apr - 11 May	easyJet
16 Apr - 04 May	easyJet
12 Apr - 22 Apr	easyJet
10 Apr - 08 May	easyJet
20 Apr - 04 May	easyJet
16 Apr - 20 Apr	easyJet
08 Apr - 20 Apr	easyJet
06 Apr - 12 Apr	easyJet
01 Apr - 12 Apr	easyJet
20 Apr - 30 Apr	easyJet
26 Apr - 10 May	easyJet

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

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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Cheapest return flights from Southend to Seoul in April from 826€

Return flights