Cheapest return flights from Istanbul to Belgrade in May from $139

AirHint found the following cheapest return flights from Istanbul (IST) to Belgrade (BEG) in May 2026 (see full year).

Return flights

09 May - 12 May Wizz Air UK
19 May - 20 May AJet
10 May - 14 May AJet
15 May - 18 May AJet
14 May - 18 May Pegasus Airlines
15 May - 20 May AJet
21 May - 25 May Pegasus Airlines
07 May - 14 May Pegasus Airlines
10 May - 15 May Pegasus Airlines
20 May - 23 May Lufthansa
28 May - 03 Jun Lufthansa
22 May - 02 Jun Air Serbia direct
31 May - 07 Jun Air Serbia direct
26 May - 02 Jun Air Serbia direct
26 May - 01 Jun Air Serbia direct
17 May - 03 Jun Air Serbia direct
28 May - 03 Jun Air Serbia direct
27 May - 01 Jun Pegasus Airlines
23 May - 06 Jun Air Serbia direct
27 May - 01 Jun Air Serbia direct

Also check the deals for one-way flights from Istanbul to Belgrade in May.

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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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