To calculate everyday regular prices, KAYAK can take all prices for every single day before departure throughout the last year for first class flights to Sydney, removes the best 0.one% to account for outliers, and then takes the common of many of the values for each month. We choose notes https://businessflightshop.co.uk/blog/things-to-know-before-booking-first-class-flights-to-new-york-for-business-tours/