The time it takes to process the application for a K-1 Visa varies from case to case, explains U.S. Citizenship and Immigration Services. The "Check Processing Times" page of the website is updated monthly, and individuals should review the page to find out the current expected processing time.
To obtain a K-1 Visa, applicants must complete "Form I-129F, Petition for Alien Fiance(e)," according to U.S. Citizenship and Immigration Services. Once the application is approved, it is first sent to the National Visa Center, and then it's sent to the U.S. Embassy or Consulate, where the visa is processed for the non-resident. Petitions are processed on a first-come, first-served basis.