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

Return flights

22 Aug - 05 Sep	Ryanair
25 Aug - 05 Sep	easyJet
29 Aug - 05 Sep	Ryanair
22 Aug - 06 Sep	Ryanair
20 Aug - 01 Sep	Ryanair
12 Aug - 14 Aug	Ryanair
21 Aug - 01 Sep	Ryanair
27 Aug - 06 Sep	Ryanair
21 Aug - 23 Sep	Ryanair
22 Aug - 24 Aug	Ryanair
31 Aug - 08 Sep	Ryanair
11 Aug - 20 Aug	Ryanair
11 Aug - 15 Aug	Ryanair
19 Aug - 01 Sep	Ryanair
11 Aug - 18 Aug	Ryanair
10 Aug - 14 Aug	Ryanair
19 Aug - 21 Aug	Ryanair
21 Aug - 24 Aug	Ryanair
11 Aug - 16 Aug	Ryanair
25 Aug - 28 Aug	Ryanair

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 $278

Return flights