Cheapest return flights from London to Porto in April from $286

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 April 2026 (see full year).

Return flights

01 Apr - 07 Apr KLM
11 Apr - 18 Apr KLM
01 Apr - 08 Apr KLM
27 Apr - 01 May Lufthansa
11 Apr - 17 Apr KLM
28 Apr - 01 May KLM
13 Apr - 17 Apr Lufthansa
10 Apr - 16 Apr SWISS
12 Apr - 18 Apr KLM
05 Apr - 08 Apr KLM
16 Apr - 19 Apr SWISS
08 Apr - 06 May Lufthansa
09 Apr - 16 Apr SWISS

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

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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