Cheapest return flights from London to Porto in May from $279

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

Return flights

05 May - 12 May ITA Airways
06 May - 12 May ITA Airways
06 May - 10 May Luxair
20 May - 27 May Luxair
26 May - 29 May Iberia
06 May - 13 May ITA Airways
11 May - 15 May Luxair
05 May - 11 May Iberia
28 May - 02 Jun Luxair
07 May - 12 May ITA Airways
28 May - 01 Jun Luxair
26 May - 30 May KLM
26 May - 01 Jun KLM
29 May - 02 Jun Luxair
25 May - 06 Jun Iberia
30 May - 01 Jun KLM
29 May - 01 Jun SWISS
29 May - 03 Jun Lufthansa
30 May - 02 Jun KLM
30 May - 08 Jun Luxair

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

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