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

Return flights

30 Mar - 13 Apr	Ryanair	direct
30 Mar - 03 Apr	Ryanair	direct
30 Mar - 06 Apr	Ryanair	direct
26 Mar - 30 Mar	easyJet
10 Mar - 17 Mar	Ryanair
02 Mar - 04 Mar	easyJet
30 Mar - 17 Apr	Ryanair	direct
12 Mar - 17 Mar	Ryanair
30 Mar - 01 Apr	Ryanair
27 Mar - 30 Mar	Ryanair
07 Mar - 10 Mar	Ryanair
13 Mar - 16 Mar	Ryanair
20 Mar - 26 Mar	Ryanair
28 Mar - 31 Mar	easyJet
06 Mar - 07 Mar	Ryanair
25 Mar - 01 Apr	Jet2
31 Mar - 03 Apr	Ryanair
30 Mar - 02 Apr	Ryanair
28 Mar - 01 Apr	easyJet
28 Mar - 02 Apr	easyJet

Also check the deals for one-way flights from Belfast to Porto 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 Belfast to Porto in March from 84€

Return flights