A right away to investigate how much a travel agency software and app development might cost is to start by looking at the modules that one needs. An online travel software may have B2C, B2B, corporates and backend, followed by flights, hotels, transfers, sightseeing, VISA, forex etc. On an average a booking engine may cost between 10,000 USD to 100,000 USD depending on modules and customizations needed. Like all the software projects, travel agency systems are also categorized in three categories, simple / moderate and complex. Though the hourly rates differ greatly around the globe, independent of the end product quality. So, if you have a good concept and clear strategy, there is no need to pay more, because high price doesn’t always mean high quality. An ever increasing number of travel agents in United States are deciding to enlist travel app developers in India.