The credit card approval process can take anywhere from a few minutes to a few weeks, depending on the issuer and the method of application. Online applications often result in an instant decision, while mailed applications can take several weeks to process. After approval, it typically takes 7-10 business days to receive the physical credit card in the mail, although some issuers may offer expedited delivery for an additional fee. Factors that can affect the approval process include credit score, income, and existing debt. Overall, the credit card approval process can be a relatively quick and straightforward process, but it's important to be patient and allow for the appropriate amount of time for the issuer to review and approve the application.