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

Return flights

31 Jul - 03 Aug	Luxair
11 Jul - 13 Jul	Luxair
03 Jul - 07 Jul	Luxair
03 Jul - 06 Jul	Luxair
09 Jul - 16 Jul	Luxair
09 Jul - 17 Jul	Luxair
08 Jul - 15 Jul	Luxair
02 Jul - 08 Jul	SWISS
15 Jul - 18 Jul	KLM
26 Jul - 31 Jul	SWISS
01 Jul - 05 Jul	Luxair

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

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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Cheapest return flights from London to Porto in July from 204€

Return flights