AirHint found the following cheapest return flights from Porto (OPO) to Belgrade (BEG) in October 2025 (see full year).

Return flights

23 Oct - 31 Oct	Ryanair
23 Oct - 27 Oct	Ryanair
16 Oct - 20 Oct	Ryanair
09 Oct - 13 Oct	Ryanair
06 Oct - 13 Oct	easyJet
23 Oct - 24 Oct	Ryanair
07 Oct - 13 Oct	Ryanair
22 Oct - 24 Oct	Ryanair
22 Oct - 25 Oct	Ryanair
21 Oct - 24 Oct	Ryanair
31 Oct - 03 Nov	Vueling Airlines
27 Oct - 03 Nov	Iberia
27 Oct - 03 Nov	Air Serbia	direct

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

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.

Book a cheap hotel in Belgrade

Cheap car rent in Belgrade

Cheapest return flights from Porto to Belgrade in October from $144

Return flights