The literature review highlighted that air travel price elasticities vary depending on a number of factors such as location, distance and level of market aggregation. InterVISTAS Consulting used this guidance to undertake new econometric analysis using three different datasets. The new analysis is comprehensive, based on over 500 regression models. Building on the previous research, the new econometric analysis develops a set of in-depth guidelines, and guideline elasticities, that can be applied to the analysis of different air markets, broken down by geographic market, length of haul and level of aggregation (route, national and supra-national)