To work out month to month typical selling prices, KAYAK requires all rates for on a monthly basis over the last year for flights from London Heathrow Airport to Austin, eliminates the best 0.1% to account for outliers, after which you can can take the median of all values for https://whitemagictravels.co.uk/blog/5-ways-to-book-the-best-holiday-packages-including-flights-to-australia-from-uk/