AirHint found the following cheapest return flights from Porto (OPO) to Belgrade (BEG) in March 2026 (see full year).

Return flights

13 Mar - 23 Mar	Transavia France
20 Mar - 23 Mar	Ryanair
11 Mar - 21 Mar	Ryanair
06 Mar - 09 Mar	Transavia France
29 Mar - 05 Apr	Ryanair
29 Mar - 30 Mar	easyJet
29 Mar - 02 Apr	Ryanair
27 Mar - 02 Apr	TAP
13 Mar - 23 Mar	Air Serbia	direct
06 Mar - 09 Mar	Air Serbia	direct
29 Mar - 05 Apr	Air Serbia	direct
29 Mar - 02 Apr	Air Serbia	direct
28 Mar - 01 Apr	Ryanair
27 Mar - 02 Apr	Air Serbia	direct

Also check the deals for one-way flights from Porto to Belgrade in March.

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 Porto to Belgrade in March from $158

Return flights