AirHint found the following cheapest return flights from Southend (SEN) to Buenos Aires (EZE) in December 2025 (see full year).

Return flights

06 Dec - 14 Dec	easyJet
09 Dec - 27 Dec	easyJet
27 Dec - 20 Jan	easyJet
11 Dec - 30 Dec	easyJet
06 Dec - 26 Dec	easyJet
24 Dec - 25 Jan	easyJet
27 Dec - 16 Jan	easyJet
29 Dec - 16 Jan	easyJet
22 Dec - 22 Jan	easyJet
28 Dec - 31 Jan	easyJet
27 Dec - 23 Jan	easyJet
21 Dec - 30 Dec	easyJet
30 Dec - 17 Jan	easyJet
15 Dec - 27 Dec	easyJet
12 Dec - 15 Jan	easyJet
27 Dec - 14 Jan	easyJet
16 Dec - 31 Dec	easyJet
14 Dec - 28 Dec	easyJet
12 Dec - 28 Dec	easyJet
24 Dec - 31 Dec	easyJet

Also check the deals for one-way flights from Southend to Buenos Aires in December.

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 Buenos Aires in December from 1359€

Return flights