Cheapest return flights from London to Ljubljana in September from $228

Best time to book flights for London (LCY) to Ljubljana (LJU) flights at AirHint

AirHint found the following cheapest return flights from London (LCY) to Ljubljana (LJU) in September 2025 (see full year).

Return flights

05 Sep - 08 Sep Lufthansa
18 Sep - 23 Sep KLM
04 Sep - 25 Sep KLM
11 Sep - 15 Sep KLM
22 Sep - 30 Sep KLM
10 Sep - 17 Sep KLM
17 Sep - 22 Sep SWISS
24 Sep - 29 Sep SWISS
30 Sep - 08 Oct KLM
09 Sep - 16 Sep SWISS
29 Sep - 03 Oct KLM
05 Sep - 10 Sep Lufthansa
29 Sep - 05 Oct KLM
07 Sep - 10 Oct KLM

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

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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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