AirHint found the following cheapest return flights from Chicago (ORD) to Ljubljana (LJU) in November 2025 (see full year).

Return flights

24 Nov - 02 Dec	LOT
01 Nov - 08 Nov	LOT
14 Nov - 22 Nov	LOT
05 Nov - 12 Nov	Lufthansa
12 Nov - 20 Nov	Lufthansa
04 Nov - 11 Nov	Lufthansa
18 Nov - 25 Nov	Lufthansa
25 Nov - 02 Dec	Lufthansa
11 Nov - 19 Nov	Lufthansa
17 Nov - 24 Nov	SWISS
24 Nov - 01 Dec	SWISS
03 Nov - 10 Nov	Lufthansa
02 Nov - 09 Nov	Lufthansa

Also check the deals for one-way flights from Chicago to Ljubljana in November.

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 Chicago to Ljubljana in November from $624

Return flights