To calculate month-to-month normal costs, KAYAK takes all price ranges for on a monthly basis during the last year for round-journey flights from London to Atlanta, gets rid of the highest 0.one% to account for outliers, and after that requires the median of all values for on a monthly basis. https://cheapfirstclassflightstoamritsar.blogspot.com/2024/11/5-ways-to-book-best-business-class.html