AirHint found the following cheapest return flights from London (LCY) to Barcelona (BCN)
in September 2025 (see full year ).
Return flights
14 Sep
- 18 Sep
British Airways
126 €
direct
10 Sep
- 18 Sep
British Airways
131 €
direct
17 Sep
- 19 Sep
British Airways
131 €
direct
16 Sep
- 18 Sep
British Airways
136 €
direct
11 Sep
- 16 Sep
British Airways
141 €
direct
05 Sep
- 12 Sep
British Airways
141 €
direct
01 Sep
- 09 Sep
British Airways
141 €
direct
12 Sep
- 16 Sep
British Airways
146 €
direct
10 Sep
- 17 Sep
British Airways
146 €
direct
02 Sep
- 09 Sep
British Airways
146 €
direct
26 Sep
- 01 Oct
ITA Airways
200 €
27 Sep
- 02 Oct
ITA Airways
200 €
26 Sep
- 01 Oct
British Airways
459 €
direct
Also check the deals for one-way flights from London to Barcelona in September .
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.