Cheapest return flights from London to Barcelona in December from $81

Best time to book flights for London (LHR) to Barcelona (BCN) flights at AirHint

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

Return flights

04 Dec - 18 Dec British Airways direct
04 Dec - 12 Dec British Airways direct
02 Dec - 19 Dec British Airways direct
06 Dec - 07 Dec British Airways direct
02 Dec - 10 Dec British Airways direct
02 Dec - 15 Dec British Airways direct
04 Dec - 08 Dec British Airways direct
10 Dec - 16 Dec British Airways direct
05 Dec - 06 Dec British Airways direct
05 Dec - 07 Dec British Airways direct
14 Dec - 16 Jan British Airways direct
12 Dec - 10 Jan Vueling Airlines direct
16 Dec - 05 Jan Vueling Airlines direct
16 Dec - 06 Jan Vueling Airlines direct
31 Dec - 10 Jan Vueling Airlines direct
31 Dec - 06 Jan Vueling Airlines direct
31 Dec - 08 Jan Vueling Airlines direct
31 Dec - 07 Jan Vueling Airlines direct
31 Dec - 14 Jan Vueling Airlines direct
31 Dec - 18 Jan Vueling Airlines direct

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