Cheapest return flights from London to Barcelona in December from $151

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

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

Return flights

05 Dec - 07 Dec British Airways direct
05 Dec - 12 Dec British Airways direct
19 Dec - 28 Dec British Airways direct
26 Dec - 18 Jan British Airways direct
01 Dec - 07 Dec KLM
02 Dec - 08 Dec KLM
04 Dec - 10 Dec KLM
05 Dec - 11 Dec KLM
01 Dec - 31 Dec KLM
03 Dec - 09 Dec KLM
01 Dec - 22 Dec KLM
15 Dec - 16 Jan KLM
24 Dec - 01 Jan ITA Airways
25 Dec - 13 Jan ITA Airways
25 Dec - 01 Jan ITA Airways
26 Dec - 26 Jan British Airways direct
28 Dec - 11 Jan Lufthansa
26 Dec - 01 Jan ITA Airways
26 Dec - 02 Jan ITA Airways
25 Dec - 17 Jan SWISS

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

Skyscanner

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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