AirHint found the following cheapest return flights from London (LHR) to Ljubljana (LJU) in March 2026 (see full year).

Return flights

25 Mar - 28 Mar	Vueling Airlines
27 Mar - 10 Apr	LOT
12 Mar - 24 Mar	Lufthansa
13 Mar - 25 Mar	Lufthansa
19 Mar - 23 Mar	Lufthansa
06 Mar - 13 Mar	Lufthansa
17 Mar - 23 Mar	Lufthansa
04 Mar - 25 Mar	SWISS
21 Mar - 24 Mar	SWISS
07 Mar - 12 Mar	SWISS
07 Mar - 11 Mar	SWISS
26 Mar - 09 Apr	SWISS
26 Mar - 01 Apr	SWISS
31 Mar - 08 Apr	Brussels Airlines
31 Mar - 06 Apr	Brussels Airlines
31 Mar - 04 Apr	Brussels Airlines
27 Mar - 02 Apr	SWISS
30 Mar - 12 Apr	LOT
31 Mar - 03 Apr	LOT
30 Mar - 12 Apr	British Airways	direct

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

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 March from 173€

Return flights