Cheapest return flights from London to Lisbon in December from $350

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

Return flights

14 Dec - 18 Dec KLM
15 Dec - 31 Dec Lufthansa
24 Dec - 01 Jan SWISS
30 Dec - 03 Jan KLM
23 Dec - 01 Jan Lufthansa
26 Dec - 30 Dec SWISS
30 Dec - 04 Jan Lufthansa
27 Dec - 03 Jan KLM
20 Dec - 03 Jan KLM

Also check the deals for one-way flights from London to Lisbon 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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