The processing time for a U.S. C-1 Transit Visa in 2026 is highly variable and depends largely on the specific U.S. Embassy or Consulate where the applicant applies. While the administrative processing of the visa itself typically takes 3 to 5 business days once approved, the "total" time can span several months due to significant backlogs in interview wait times. In 2026, wait times for non-immigrant visa interviews at high-volume consulates can exceed 180 days, and certain applicants may be subject to additional "Administrative Processing," which can add 60 days or more to the timeline. Furthermore, effective January 2026, the U.S. has implemented new restrictions and enhanced screening for nationals of 39 specific countries, which may further complicate and lengthen the approval process. Travelers are strictly advised not to book non-refundable flights through the U.S. until they have the physical visa in their possession, as the "transit" requirement is just as rigorous as a standard tourist visa, requiring a full interview and background check for most international passengers.