Delta Air Lines is experiencing a significant revenue loss of $100 million due to travelers avoiding Paris this summer. Despite a busy European travel season, the airline's second-quarter profit was negatively impacted by higher fuel and labor costs. Additionally, Delta's inability to maintain high prices amidst competition from local carriers cutting ticket prices has further strained its financial performance. The upcoming Paris Olympics has been cited by Delta's CEO as a factor deterring tourists from visiting the city, exacerbating the company's financial challenges.