It will enter service in February and will be deployed on a new Heathrow-Atlanta route.
BA’s Dreamliner will offer four classes of cabin, with eight seats in First and 48 in its new Club cabin.
Its World Traveller Plus cabin will feature 35 seats and World Traveller 165.
Improvements offered by the Dreamliner, according to BA, include lower cabin pressure and better humidity, and greater fuel efficiency.
