Delta Airlines (NYSE: DAL) reported higher than expected earnings this week, with profits for the second financial quarter up 85%, Reuters reported. However, the company is already reporting a drop in profits for the third quarter. According to Reuters, a strong U.S. dollar is reducing the sales of tickets for trips abroad and will significantly contribute to a lower profit for the upcoming quarter. In terms of fuel costs, Delta expects appromiately $1.90 and $1.95 per gallon in the third quarter. Shares of Delta dropped 2.3% in premarket trading Wednesday. For more business and financial news, click here.