Cheapest return flights from London to Ljubljana in September from $188

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

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

Return flights

11 Sep - 18 Sep British Airways direct
11 Sep - 14 Sep British Airways direct
25 Sep - 28 Sep British Airways direct
13 Sep - 20 Sep Air Serbia
11 Sep - 21 Sep British Airways direct
26 Sep - 03 Oct British Airways direct
25 Sep - 02 Oct KLM
11 Sep - 13 Sep KLM
11 Sep - 15 Sep KLM
25 Sep - 29 Sep KLM
26 Sep - 28 Sep KLM
22 Sep - 25 Sep 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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