Cheapest return flights from London to Porto in August from $108

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

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

Return flights

28 Aug - 18 Sep Ryanair direct
28 Aug - 17 Sep Ryanair
30 Aug - 10 Sep easyJet direct
30 Aug - 13 Sep easyJet direct
31 Aug - 03 Sep easyJet
31 Aug - 18 Sep Ryanair direct
29 Aug - 18 Sep Ryanair direct
26 Aug - 13 Sep Ryanair direct
28 Aug - 16 Sep Ryanair
31 Aug - 17 Sep Ryanair
04 Aug - 08 Aug easyJet
05 Aug - 08 Aug Ryanair
31 Aug - 31 Aug Ryanair
28 Aug - 31 Aug Ryanair
26 Aug - 31 Aug Ryanair
24 Aug - 27 Aug Ryanair
03 Aug - 08 Aug Ryanair
27 Aug - 31 Aug Ryanair
29 Aug - 31 Aug Ryanair
06 Aug - 07 Aug Ryanair direct

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

Skyscanner

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.

Book a cheap hotel in Porto

Cheap car rent in Porto