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

Return flights

24 Jan - 27 Jan	KLM
10 Jan - 13 Jan	KLM
23 Jan - 27 Jan	KLM
23 Jan - 03 Feb	KLM
23 Jan - 26 Jan	KLM
16 Jan - 19 Jan	KLM
09 Jan - 16 Jan	KLM
12 Jan - 19 Jan	KLM
06 Jan - 12 Jan	KLM
16 Jan - 18 Jan	KLM
09 Jan - 18 Jan	KLM
26 Jan - 02 Feb	Luxair
30 Jan - 04 Feb	KLM
31 Jan - 02 Feb	Luxair
28 Jan - 01 Feb	Luxair
29 Jan - 01 Feb	Luxair
08 Jan - 19 Feb	KLM
30 Jan - 01 Feb	ITA Airways
31 Jan - 04 Feb	KLM

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

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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Cheapest return flights from London to Porto in January from $222

Return flights