Cheapest return flights from London to Porto in December 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 December 2025 (see full year).

Return flights

31 Dec - 09 Jan Vueling Airlines
31 Dec - 16 Jan Vueling Airlines
02 Dec - 22 Dec Vueling Airlines
02 Dec - 15 Dec Vueling Airlines
02 Dec - 12 Dec Vueling Airlines
02 Dec - 10 Dec Vueling Airlines
02 Dec - 13 Dec Vueling Airlines
02 Dec - 03 Dec Vueling Airlines
02 Dec - 21 Dec Vueling Airlines
02 Dec - 20 Dec Vueling Airlines
02 Dec - 17 Dec Vueling Airlines
02 Dec - 23 Dec Vueling Airlines
31 Dec - 11 Jan Vueling Airlines
31 Dec - 08 Jan Vueling Airlines
31 Dec - 05 Jan Vueling Airlines
31 Dec - 04 Jan Vueling Airlines
31 Dec - 07 Jan Vueling Airlines
15 Dec - 08 Jan Vueling Airlines
31 Dec - 06 Jan Vueling Airlines
16 Dec - 05 Jan Vueling Airlines

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

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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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