How long does it take to apply for a US visa in Canada with a Maple Leaf Card?

3 to 6 days. Applying for a U.S. visa in Canada with a Maple Leaf Card requires an interview. According to the basic process of applying for a visa in Canada, it can be known that applying for a U.S. visa in Canada with a Maple Leaf Card takes 3 to 6 days to complete. Things to note when applying for a visa: Applicants must bring their household registration book, resident card and their respective ID cards, invitation letters, visa issuance permission and other original visa application documents when applying; they should try to avoid their disadvantages and show their advantages.