Emirates says flight was delayed as Delta withheld $300 part

Emirates, the world's biggest long-haul airline, said a flight from Seattle to Dubai was delayed for more than six hours after it was unable to obtain a $300 spare part from Delta Air Lines, which has led a campaign against the expansion of Mideast carriers in the U.S.

A Boeing 777 due to depart the American city at 9 a.m. on Feb. 2 was held up by a…