Cheapest return flights from Boston to Ljubljana in July from $431

AirHint found the following cheapest return flights from Boston (BOS) to Ljubljana (LJU) in July 2025 (see full year).

Return flights

21 Jul - 28 Jul SWISS
22 Jul - 29 Jul SWISS
16 Jul - 23 Jul Lufthansa
10 Jul - 06 Aug SWISS
20 Jul - 27 Jul Lufthansa
17 Jul - 24 Jul Lufthansa
18 Jul - 25 Jul Lufthansa
19 Jul - 26 Jul SWISS
13 Jul - 02 Aug SWISS

Also check the deals for one-way flights from Boston to Ljubljana in July.

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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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