Cheapest return flights from London to Porto in December from 100€

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

AirHint found the following cheapest return flights from London (LON) to Porto (OPO) in December 2025 (see full year).

Return flights

01 Dec - 08 Dec Ryanair direct
01 Dec - 01 Dec Ryanair direct
01 Dec - 02 Dec Ryanair direct
01 Dec - 05 Dec Ryanair direct
01 Dec - 09 Dec Ryanair direct
01 Dec - 19 Dec Ryanair direct
01 Dec - 06 Dec Ryanair direct
01 Dec - 21 Dec Ryanair direct
01 Dec - 07 Dec Ryanair direct
01 Dec - 04 Dec Ryanair direct
31 Dec - 12 Jan Ryanair direct
31 Dec - 19 Jan Ryanair direct
31 Dec - 10 Jan Ryanair direct
31 Dec - 13 Jan Ryanair direct
31 Dec - 18 Jan Ryanair direct
31 Dec - 14 Jan Ryanair direct
30 Dec - 12 Jan Ryanair direct
30 Dec - 19 Jan Ryanair direct
30 Dec - 10 Jan Ryanair direct
30 Dec - 13 Jan Ryanair direct

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

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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