Cannot fly.

1. Repaying a credit card three months after it is overdue will generally have a negative impact on your personal credit record. Late repayments may result in a drop in your credit score and being placed on a credit blacklist.

2. Airlines usually require passengers to provide credit card information when purchasing tickets as a means of payment and identity verification. Expired credit cards may not be verified, resulting in the inability to purchase air tickets.

3. Even if you can purchase a ticket, overdue records may attract the attention of the airline and affect your travel experience.

4. Summary: Paying off your credit card after three months of overdue credit may impose restrictions on flying. It is recommended to make timely repayments to avoid damage to your credit history.

Extended information: Late repayments will have a negative impact on your credit history, which may lead to a decline in your credit score and make it difficult to obtain other financial services or purchase large-ticket items. In addition, according to the "Interim Measures for the Management of Personal Credit Reporting Business" issued by the China Banking Regulatory Commission, banks can submit overdue repayment records to the personal credit reporting system, affecting the formation of personal credit records and query results. Therefore, it is important to maintain a good credit history.