Cheapest return flights from London to Porto in March from $242

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

31 Mar - 04 Apr KLM
31 Mar - 09 Apr KLM
26 Mar - 09 Apr SWISS
24 Mar - 28 Mar SWISS
18 Mar - 01 Apr SWISS
19 Mar - 25 Mar SWISS
18 Mar - 25 Mar SWISS
19 Mar - 26 Mar SWISS
24 Mar - 01 Apr SWISS
31 Mar - 03 Apr KLM
26 Mar - 31 Mar SWISS
25 Mar - 31 Mar SWISS
25 Mar - 04 Apr SWISS
31 Mar - 02 Apr KLM
17 Mar - 28 Mar SWISS
21 Mar - 07 Apr SWISS
21 Mar - 26 Mar SWISS
29 Mar - 02 Apr Luxair
24 Mar - 31 Mar SWISS
14 Mar - 20 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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