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

Return flights

03 May - 10 May	Air Serbia
16 May - 23 May	Air Serbia
21 May - 27 May	Lufthansa
21 May - 26 May	Lufthansa
07 May - 13 May	Lufthansa
07 May - 10 May	Lufthansa
10 May - 14 May	Air Serbia
10 May - 15 May	British Airways	direct
12 May - 19 May	Lufthansa
02 May - 04 May	Air Serbia
29 May - 02 Jun	SWISS
26 May - 05 Jun	Lufthansa
29 May - 01 Jun	SWISS
31 May - 11 Jun	Lufthansa
28 May - 01 Jun	Lufthansa
31 May - 09 Jun	Lufthansa
31 May - 11 Jun	British Airways	direct
24 May - 01 Jun	Lufthansa
29 May - 02 Jun	British Airways	direct
26 May - 05 Jun	British Airways	direct

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

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 May from 168€

Return flights