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

Return flights

20 Jan - 23 Jan	Iberia
19 Jan - 22 Jan	Iberia
29 Jan - 01 Feb	Iberia
05 Jan - 19 Jan	Luxair
16 Jan - 19 Jan	Luxair
05 Jan - 12 Jan	Luxair
08 Jan - 12 Jan	Luxair
21 Jan - 23 Jan	Luxair
28 Jan - 30 Jan	Luxair
17 Jan - 18 Jan	Luxair
17 Jan - 20 Jan	KLM
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.

Book a cheap hotel in Porto

Cheap car rent in Porto

Cheapest return flights from London to Porto in January from 202€

Return flights