Join Date: Aug 2011
Location: Barcelona, London, on a plane
Programs: IB+ Gold, TK E+, Hyatt Globalist, Marriott LTP, IHG Diamond
Posts: 14,184
You should be fine checking in earlier than normal at BCN. There are BA flights throughout the day - therefore the check-in desks are open. I get asked regularly which flight I am checking in for...
FWIW there are no left luggage facilities at BCN.