Travellers who meet specific eligibility conditions can complete a conditional Turkey visa application online through the Turkish e-Visa portal. The application process requires selecting the applicant's nationality, entering valid passport details, and checking the applicable visa conditions. Certain nationalities may need a valid supporting visa or residence permit from countries such as the United States, United Kingdom, Ireland, or Schengen Area. Additional requirements may include a return ticket, hotel reservation, and sufficient financial resources. Applicants should carefully review all conditions, verify their information, and pay the applicable visa fee before completing the online application.