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

Return flights

19 Apr - 03 May	easyJet
17 Apr - 03 May	easyJet
27 Apr - 03 May	easyJet
10 Apr - 19 Apr	easyJet
07 Apr - 20 Apr	easyJet
28 Apr - 21 May	easyJet
11 Apr - 18 Apr	easyJet
23 Apr - 14 May	easyJet
18 Apr - 02 May	easyJet
17 Apr - 23 Apr	easyJet
16 Apr - 19 Apr	easyJet
09 Apr - 26 Apr	easyJet
13 Apr - 13 May	easyJet
05 Apr - 19 Apr	easyJet
06 Apr - 19 Apr	easyJet
09 Apr - 22 Apr	easyJet
05 Apr - 12 Apr	easyJet
20 Apr - 26 May	easyJet
23 Apr - 02 May	easyJet
23 Apr - 05 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 688€

Return flights