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

Return flights

18 Jan - 28 Jan	easyJet
11 Jan - 24 Jan	easyJet
11 Jan - 18 Jan	easyJet
11 Jan - 08 Feb	easyJet
19 Jan - 25 Jan	easyJet
23 Jan - 29 Jan	easyJet
15 Jan - 25 Jan	easyJet
12 Jan - 25 Jan	easyJet
08 Jan - 18 Jan	easyJet
22 Jan - 01 Feb	easyJet
01 Jan - 17 Jan	easyJet
04 Jan - 22 Feb	easyJet
22 Jan - 08 Feb	easyJet
05 Jan - 09 Jan	easyJet
19 Jan - 26 Feb	easyJet
30 Jan - 08 Feb	easyJet
16 Jan - 06 Feb	easyJet
01 Jan - 01 Feb	easyJet
30 Jan - 09 Feb	easyJet
23 Jan - 05 Feb	easyJet

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

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 January from 532€

Return flights