Cheapest return flights from London to Porto in May from $55

Best time to book flights for London (LON) to Porto (OPO) flights at AirHint

AirHint found the following cheapest return flights from London (LON) to Porto (OPO) in May 2025 (see full year).

Return flights

19 May - 21 May Ryanair direct
19 May - 23 May Ryanair direct
19 May - 06 Jun Ryanair direct
19 May - 24 May Ryanair direct
19 May - 22 May Ryanair direct
19 May - 20 May Ryanair direct
30 May - 06 Jun Ryanair direct
30 May - 11 Jun Ryanair direct
19 May - 08 Jun Ryanair direct
30 May - 20 Jun Ryanair direct
30 May - 05 Jun Ryanair direct
30 May - 19 Jun Ryanair direct
30 May - 13 Jun Ryanair direct
19 May - 04 Jun Ryanair direct
19 May - 07 Jun Ryanair direct
14 May - 16 May Ryanair
14 May - 21 May Ryanair
19 May - 25 May Ryanair direct
17 May - 20 May Ryanair direct
13 May - 20 May Ryanair

Also check the deals for one-way flights from London 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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