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

Return flights

09 Jul - 12 Jul	Ryanair	direct
19 Jul - 02 Aug	Ryanair	direct
08 Jul - 12 Jul	Ryanair
16 Jul - 02 Aug	Ryanair	direct
19 Jul - 30 Jul	Ryanair
19 Jul - 29 Jul	Ryanair
24 Jul - 29 Jul	Jet2
29 Jul - 02 Aug	Ryanair
23 Jul - 02 Aug	Ryanair	direct
30 Jul - 02 Aug	Ryanair
07 Jul - 12 Jul	Ryanair
19 Jul - 30 Jul	Ryanair	direct
05 Jul - 09 Jul	easyJet
09 Jul - 26 Jul	Ryanair	direct
26 Jul - 02 Aug	Ryanair	direct
09 Jul - 10 Jul	Ryanair
16 Jul - 01 Aug	Ryanair
29 Jul - 01 Aug	Jet2
30 Jul - 02 Aug	Ryanair	direct
05 Jul - 02 Aug	easyJet

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.

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Cheapest return flights from Belfast to Porto in July from $126

Return flights