The cost of travel software development depends on project scope, delivery time, team size, integrations, data requirements, design complexity and level of customisation.
A simple travel website will have a different budget from a booking platform connected with payment systems, supplier APIs, CRM, analytics, maps, reporting tools and automated communication.
Common billing models include fixed price and time and materials. Fixed price can work when the scope is well defined. Time and materials gives more flexibility when requirements may change during development.
A reliable estimate requires a good understanding of your users, travel services, booking flow, integrations, technical constraints and business goals.