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

Return flights

31 Aug - 05 Sep	easyJet	direct
29 Aug - 02 Sep	SWISS
28 Aug - 02 Sep	SWISS
28 Aug - 01 Sep	easyJet
25 Aug - 11 Sep	easyJet	direct
27 Aug - 09 Sep	easyJet
26 Aug - 01 Sep	SWISS
27 Aug - 03 Sep	easyJet	direct
26 Aug - 02 Sep	SWISS
18 Aug - 02 Sep	SWISS
05 Aug - 07 Aug	easyJet	direct
06 Aug - 07 Aug	easyJet	direct
05 Aug - 08 Aug	easyJet	direct
06 Aug - 08 Aug	easyJet	direct
02 Aug - 07 Aug	easyJet	direct
02 Aug - 08 Aug	easyJet	direct
05 Aug - 12 Aug	easyJet	direct
05 Aug - 11 Aug	easyJet	direct
06 Aug - 13 Aug	easyJet	direct
02 Aug - 05 Aug	easyJet	direct

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

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 Ljubljana in August from 177€

Return flights