Cheapest return flights from London to Sofia in December from $175

AirHint found the following cheapest return flights from London (LHR) to Sofia (SOF) in December 2025 (see full year).

Return flights

10 Dec - 14 Dec British Airways direct
07 Dec - 12 Dec British Airways
16 Dec - 23 Dec Lufthansa
11 Dec - 29 Dec Lufthansa
15 Dec - 22 Dec Lufthansa
15 Dec - 19 Dec Lufthansa
27 Dec - 31 Dec Austrian Airlines
17 Dec - 24 Dec Lufthansa
27 Dec - 29 Dec Austrian Airlines
17 Dec - 29 Dec Lufthansa
24 Dec - 01 Jan Austrian Airlines
18 Dec - 08 Jan LOT
28 Dec - 01 Jan Austrian Airlines
26 Dec - 05 Jan Austrian Airlines
23 Dec - 14 Jan Lufthansa
24 Dec - 05 Jan Austrian Airlines
29 Dec - 02 Jan Lufthansa
30 Dec - 03 Jan Lufthansa
27 Dec - 03 Jan Austrian Airlines
10 Dec - 04 Jan Lufthansa

Also check the deals for one-way flights from London to Sofia in December.

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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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