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

Return flights

10 Dec - 16 Dec	easyJet
10 Dec - 17 Dec	easyJet
11 Dec - 17 Dec	easyJet
10 Dec - 13 Dec	easyJet
11 Dec - 13 Dec	easyJet
09 Dec - 16 Dec	easyJet
17 Dec - 23 Dec	easyJet
18 Dec - 23 Dec	easyJet
11 Dec - 15 Dec	easyJet
18 Dec - 20 Dec	easyJet
30 Dec - 03 Jan	easyJet
31 Dec - 02 Jan	easyJet
29 Dec - 01 Jan	easyJet
27 Dec - 01 Jan	easyJet
30 Dec - 02 Jan	easyJet
20 Dec - 03 Jan	easyJet

Also check the deals for one-way flights from Southend to Luxemburg 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 Luxemburg in December from 156€

Return flights