AirHint found the following cheapest return flights from London (LHR) to Athens (ATH) in December 2026 (see full year).

Return flights

10 Dec - 01 Jan	Air Serbia
03 Dec - 06 Dec	British Airways	direct
14 Dec - 28 Dec	Air Serbia
31 Dec - 07 Jan	KLM
30 Dec - 31 Jan	ITA Airways
18 Dec - 02 Jan	ITA Airways
19 Dec - 26 Dec	ITA Airways
23 Dec - 02 Jan	ITA Airways
18 Dec - 03 Jan	ITA Airways
18 Dec - 10 Jan	ITA Airways
23 Dec - 06 Jan	ITA Airways
22 Dec - 05 Jan	ITA Airways
19 Dec - 04 Jan	ITA Airways
23 Dec - 30 Dec	ITA Airways
23 Dec - 27 Dec	ITA Airways
24 Dec - 30 Dec	ITA Airways
24 Dec - 28 Dec	ITA Airways
27 Dec - 30 Dec	ITA Airways
25 Dec - 31 Dec	Air Serbia
27 Dec - 30 Dec	Aegean Airlines	direct

Also check the deals for one-way flights from London to Athens 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 London to Athens in December from 169€

Return flights