Cheapest return flights from London to Lisbon in December from $126

Best time to book flights for London (LHR) to Lisbon (LIS) flights at AirHint

AirHint found the following cheapest return flights from London (LHR) to Lisbon (LIS) in December 2025 (see full year).

Return flights

31 Dec - 07 Jan British Airways direct
31 Dec - 06 Jan British Airways direct
12 Dec - 19 Dec British Airways direct
02 Dec - 06 Dec British Airways direct
16 Dec - 23 Dec British Airways direct
24 Dec - 26 Dec British Airways direct
15 Dec - 19 Dec British Airways direct
12 Dec - 20 Dec British Airways direct
15 Dec - 08 Jan British Airways direct
17 Dec - 19 Jan British Airways direct
04 Dec - 07 Dec British Airways direct
24 Dec - 27 Dec British Airways direct
05 Dec - 07 Dec British Airways direct
01 Dec - 05 Dec British Airways direct
31 Dec - 08 Jan Vueling Airlines
31 Dec - 05 Jan Vueling Airlines
16 Dec - 05 Jan Vueling Airlines
31 Dec - 02 Jan Vueling Airlines
16 Dec - 02 Jan Vueling Airlines
24 Dec - 01 Jan British Airways direct

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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