Cheapest return flights from London to Porto in June from $241

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

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

Return flights

04 Jun - 11 Jun SWISS
11 Jun - 15 Jun SWISS
13 Jun - 16 Jun SWISS
10 Jun - 17 Jun SWISS
12 Jun - 15 Jun SWISS
09 Jun - 15 Jun SWISS
11 Jun - 18 Jun SWISS
04 Jun - 08 Jun SWISS
02 Jun - 17 Jun Luxair
05 Jun - 08 Jun SWISS
28 Jun - 01 Jul Luxair
30 Jun - 03 Jul SWISS
28 Jun - 02 Jul KLM
26 Jun - 02 Jul Luxair
29 Jun - 02 Jul KLM
29 Jun - 03 Jul KLM

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

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.

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