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

Return flights

29 Jul - 19 Aug	easyJet
29 Jul - 23 Aug	easyJet	direct
29 Jul - 19 Aug	easyJet	direct
30 Jul - 16 Aug	easyJet	direct
30 Jul - 19 Aug	Vueling Airlines
15 Jul - 17 Jul	easyJet	direct
30 Jul - 20 Aug	Vueling Airlines
29 Jul - 12 Aug	Vueling Airlines
25 Jul - 29 Jul	easyJet
23 Jul - 29 Jul	Ryanair
28 Jul - 12 Aug	Vueling Airlines
31 Jul - 19 Aug	Vueling Airlines
30 Jul - 12 Aug	Vueling Airlines
18 Jul - 22 Jul	easyJet
14 Jul - 16 Jul	Ryanair
15 Jul - 16 Jul	easyJet
16 Jul - 21 Jul	easyJet
25 Jul - 28 Jul	easyJet
17 Jul - 22 Jul	easyJet
26 Jul - 29 Jul	easyJet

Also check the deals for one-way flights from Porto to London 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 Porto to London in July from 131€

Return flights