BRITISH Midland is to add an extra 65 flights on its DublinLondon route to cope with the Christmas rush, it said yesterday. It will also run an extra 80 flights on its Belfast London route to meet demand. British Midland claims to have a 37 per cent share of the Dublin Heathrow route. It also said it was introducing additional capacity on its Dublin East Midlands route which was introduced earlier this year.