Cheapest return BFS–OPO flights, May

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

Return flights

27 May - 01 Jun Ryanair
26 May - 29 May Ryanair
15 May - 18 May Ryanair direct
28 May - 01 Jun Ryanair
12 May - 15 May Ryanair
25 May - 29 May Ryanair
15 May - 25 May Ryanair direct
15 May - 29 May Ryanair direct
18 May - 25 May Ryanair
19 May - 25 May Ryanair
15 May - 22 May Ryanair direct
13 May - 18 May Ryanair
29 May - 01 Jun Ryanair
25 May - 05 Jun Ryanair
28 May - 08 Jun Ryanair
29 May - 08 Jun Ryanair
28 May - 02 Jun Ryanair
29 May - 02 Jun Ryanair
30 May - 01 Jun Jet2
29 May - 03 Jun Ryanair

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

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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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