Delta Air Lines (DAL), the No. 1 U.S. carrier by sales, said in a regulatory filing that revenue and profit should rise this quarter, aided by stronger business travel and expansion of its number of flights to New York. But it said it expects to record losses from fuel hedging due to declining oil prices and charges for staff cuts. Airlines recently surged into the top 10 among the 197 industries that IBD tracks amid the slide in oil prices. U.S.