Cheapest return flights from London to Porto in March from $179

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

AirHint found the following cheapest return flights from London (LHR) to Porto (OPO) in March 2026 (see full year).

Return flights

02 Mar - 03 Mar Vueling Airlines
03 Mar - 13 Mar Vueling Airlines
05 Mar - 18 Mar Vueling Airlines
07 Mar - 09 Mar Vueling Airlines
11 Mar - 18 Mar Vueling Airlines
09 Mar - 13 Mar Vueling Airlines
19 Mar - 22 Mar TAP
05 Mar - 22 Mar TAP
29 Mar - 02 Apr KLM
26 Mar - 28 Mar Vueling Airlines
16 Mar - 30 Mar SWISS
31 Mar - 04 Apr SWISS
31 Mar - 07 Apr SWISS
29 Mar - 05 Apr KLM

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

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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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