Emirates Airline [EMIRA.UL] said Tuesday that state-owned Gulf Arab airlines were not to blame for overcapacity on services between the United States and Dubai, rejecting criticism by U.S. carrier Delta Air Lines (DAL.N). Delta said Sunday it had reduced flights between Atlanta and Dubai this winter, blaming overcapacity on U.S. routes to the Middle East by subsidized and state-owned airlines, underscoring a trade row.