Cheapest return flights from London to Sofia in September from $266

AirHint found the following cheapest return flights from London (LCY) to Sofia (SOF) in September 2026 (see full year).

Return flights

10 Sep - 15 Sep Lufthansa
11 Sep - 16 Sep Lufthansa
01 Sep - 08 Sep Lufthansa
15 Sep - 17 Sep Lufthansa
30 Sep - 05 Oct Lufthansa
11 Sep - 14 Sep Lufthansa
24 Sep - 27 Sep Lufthansa
03 Sep - 07 Sep Lufthansa
17 Sep - 18 Sep Lufthansa
17 Sep - 20 Sep Lufthansa
03 Sep - 06 Sep Lufthansa
23 Sep - 04 Oct Lufthansa
26 Sep - 01 Oct SWISS

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

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