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

Return flights

23 May - 29 May	Air Serbia
09 May - 16 May	Air Serbia
30 May - 06 Jun	Air Serbia
09 May - 12 May	Lufthansa
18 May - 23 May	Lufthansa
23 May - 31 May	Air Serbia
23 May - 30 May	Air Serbia
25 May - 30 May	Lufthansa
31 May - 05 Jun	Air Serbia
21 May - 26 May	Lufthansa
16 May - 26 May	Lufthansa
11 May - 16 May	Lufthansa
31 May - 07 Jun	Air Serbia
30 May - 10 Jun	Lufthansa
28 May - 01 Jun	Lufthansa
29 May - 01 Jun	SWISS
31 May - 05 Jun	British Airways	direct
19 May - 02 Jun	Lufthansa
30 May - 06 Jun	British Airways	direct
26 May - 03 Jun	SWISS

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.

Book a cheap hotel in Ljubljana

Cheap car rent in Ljubljana

Cheapest return flights from London to Ljubljana in May from 179€

Return flights