Cheapest return flights from London to Porto in May from 271€

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

Return flights

11 May - 15 May Luxair
29 May - 02 Jun Luxair
15 May - 19 May Luxair
17 May - 26 May KLM
06 May - 13 May KLM
07 May - 11 May KLM
16 May - 19 May Luxair
18 May - 20 May Luxair
25 May - 01 Jun KLM
18 May - 21 May Luxair
09 May - 12 May KLM
08 May - 11 May KLM
27 May - 01 Jun KLM
30 May - 02 Jun KLM
30 May - 03 Jun Luxair
31 May - 05 Jun Luxair

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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