Cheapest return flights from London to Porto in May from $164

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

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

Return flights

13 May - 14 May Vueling Airlines
13 May - 22 May Vueling Airlines
31 May - 11 Jun Vueling Airlines
07 May - 14 May Vueling Airlines
08 May - 14 May Vueling Airlines
07 May - 22 May Vueling Airlines
08 May - 22 May Vueling Airlines
14 May - 22 May Vueling Airlines
12 May - 14 May Vueling Airlines
31 May - 12 Jun Vueling Airlines
12 May - 22 May Vueling Airlines
10 May - 14 May Vueling Airlines
31 May - 04 Jun Vueling Airlines
28 May - 11 Jun Vueling Airlines
19 May - 04 Jun Vueling Airlines
17 May - 04 Jun Vueling Airlines
31 May - 16 Jun Vueling Airlines
31 May - 18 Jun Vueling Airlines
31 May - 17 Jun Vueling Airlines
31 May - 13 Jun Vueling Airlines

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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