A pickup in deliveries helped United Parcel Service Inc. more than double its profit from a year ago, when it took a hit from pension restructuring costs. UPS delivered more than 1 billion packages in the third quarter, a rise of 4.6 percent, led by gains in international-export and US ground shipments. The company’s US business was helped by growth in online retailing. UPS said net income in the period soared to $1.10 billion, or $1.16 per share. That was a penny better than analysts expected and better than the $469 million, or 48 cents, UPS earned a year ago.