Cheapest return flights from London to Barcelona in December from $85

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

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

Return flights

11 Dec - 15 Dec Ryanair direct
04 Dec - 15 Dec Ryanair direct
03 Dec - 09 Dec Ryanair direct
03 Dec - 06 Dec Ryanair direct
03 Dec - 19 Dec Ryanair direct
03 Dec - 10 Dec Ryanair direct
03 Dec - 05 Dec Ryanair direct
03 Dec - 20 Dec Ryanair direct
03 Dec - 21 Dec Ryanair direct
03 Dec - 07 Dec Ryanair direct
12 Dec - 10 Jan British Airways direct
31 Dec - 12 Jan Vueling Airlines direct
31 Dec - 17 Jan Vueling Airlines direct
31 Dec - 14 Jan Vueling Airlines direct
31 Dec - 09 Jan Vueling Airlines direct
31 Dec - 10 Jan Vueling Airlines direct
31 Dec - 21 Jan Vueling Airlines direct
31 Dec - 11 Jan Vueling Airlines direct
31 Dec - 18 Jan Vueling Airlines direct
30 Dec - 09 Jan British Airways direct

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.

Book a cheap hotel in Barcelona

Cheap car rent in Barcelona