Global Online Travel Agencies Market is valued at US$ 668.70 billion in 2025, and it is expected to grow US$ 1505.6 billion by 2034 with the CAGR 9.3% from 2025 to 2034. Scope of Global Online Travel Agencies Market The online travel organization (OTA) market refers to virtual structures that enable customers to go view, evaluate and e-book tour-related offers consisting of flights, hotels, transportation and tour applications through websites or cell programs.