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

Return flights

23 Dec - 13 Jan	easyJet
30 Dec - 13 Jan	easyJet
13 Dec - 01 Jan	easyJet
13 Dec - 20 Dec	easyJet
15 Dec - 21 Dec	easyJet
30 Dec - 17 Jan	easyJet
23 Dec - 14 Jan	easyJet
21 Dec - 28 Dec	easyJet
16 Dec - 30 Dec	easyJet
18 Dec - 28 Dec	easyJet
14 Dec - 20 Dec	easyJet
24 Dec - 16 Jan	easyJet
18 Dec - 20 Dec	easyJet
13 Dec - 26 Dec	easyJet
14 Dec - 06 Jan	easyJet
16 Dec - 31 Dec	easyJet
21 Dec - 31 Dec	easyJet
28 Dec - 24 Jan	easyJet
21 Dec - 17 Jan	easyJet
14 Dec - 07 Jan	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 $1987

Return flights