The holiday season is upon us. And when that happens, the spotlight shifts to the airline industry. Recently, there has been a substantial increase in the number of travelers. Even though aviation industry has gone through its share of ups and downs, things are changing, for the better. According to the American Customer Satisfaction Index, the airline industry customer satisfaction score has steadily increased over the past five years. Across the industry, the score is up 4.2%, climbing to a score of 75, from 72 in 2016.