Cheapest return flights from London to Porto in December from $336

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

Return flights

16 Dec - 23 Dec Lufthansa
31 Dec - 04 Jan Iberia
05 Dec - 13 Dec KLM
21 Dec - 01 Jan Iberia
22 Dec - 01 Jan Iberia
19 Dec - 09 Jan KLM
13 Dec - 05 Jan KLM
18 Dec - 03 Jan KLM
19 Dec - 02 Jan KLM
21 Dec - 03 Jan KLM
25 Dec - 03 Jan SWISS
25 Dec - 04 Jan Luxair

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

Powered by

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

Feel free to contact us with any feedback or request another flight research.