Cheapest return flights from London to Porto in March from $275

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 March 2025 (see full year).

Return flights

25 Mar - 02 Apr SWISS
25 Mar - 01 Apr SWISS
26 Mar - 01 Apr SWISS
31 Mar - 09 Apr Lufthansa
28 Mar - 02 Apr SWISS
31 Mar - 03 Apr KLM
24 Mar - 28 Mar SWISS
18 Mar - 28 Mar SWISS
18 Mar - 25 Mar SWISS
17 Mar - 25 Mar SWISS
19 Mar - 26 Mar SWISS
24 Mar - 07 Apr SWISS
31 Mar - 08 Apr Lufthansa
28 Mar - 01 Apr SWISS
31 Mar - 05 Apr KLM
26 Mar - 31 Mar SWISS
24 Mar - 31 Mar SWISS
21 Mar - 26 Mar SWISS
21 Mar - 27 Mar SWISS
26 Mar - 30 Mar SWISS

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

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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