AirHint found the following cheapest return flights from Belfast (BHD) to Porto (OPO) in July 2025 (see full year).

Return flights

04 Jul - 07 Jul	Aer Lingus
05 Jul - 09 Jul	Aer Lingus
02 Jul - 05 Jul	Aer Lingus
04 Jul - 16 Jul	Aer Lingus
14 Jul - 21 Jul	Aer Lingus
24 Jul - 31 Jul	easyJet
31 Jul - 04 Aug	Aer Lingus
02 Jul - 09 Jul	Aer Lingus
16 Jul - 19 Jul	Aer Lingus
16 Jul - 23 Jul	easyJet
14 Jul - 19 Jul	Aer Lingus
30 Jul - 02 Aug	Aer Lingus

Also check the deals for one-way flights from Belfast to Porto 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.

Book a cheap hotel in Porto

Cheap car rent in Porto

Cheapest return flights from Belfast to Porto in July from $299

Return flights