Why is Delta so expensive compared to other airlines? Delta Airlines often commands higher fares due to its exceptional service, modern fleet, and extensive route network. Quality amenities, well-trained staff, and reliability contribute to its higher cost structure. While prices may exceed those of some competitors, many travelers find the added value, comfort, and peace of mind worth it. When comparing ‘why is Delta so expensive compared to other airlines,’ it’s often because of their commitment to passenger satisfaction and quality.