AirHint found the following cheapest return flights from Basel (BSL) to Belgrade (BEG) in July 2025 (see full year).

Return flights

30 Jul - 13 Aug	Austrian Airlines
29 Jul - 05 Aug	Austrian Airlines
29 Jul - 07 Aug	Austrian Airlines
30 Jul - 07 Aug	Austrian Airlines
30 Jul - 06 Aug	Austrian Airlines
30 Jul - 04 Aug	Austrian Airlines
31 Jul - 04 Aug	Wizz Air
31 Jul - 07 Aug	Lufthansa
27 Jul - 29 Jul	Austrian Airlines
28 Jul - 29 Jul	Austrian Airlines
27 Jul - 28 Jul	Austrian Airlines
29 Jul - 02 Aug	Lufthansa
28 Jul - 30 Jul	Austrian Airlines
31 Jul - 03 Aug	Austrian Airlines

Also check the deals for one-way flights from Basel to Belgrade in July.

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 Basel to Belgrade in July from 275€

Return flights