SAIA Inc. typically accepts several payment methods to accommodate the needs of their customers. Commonly accepted methods include credit cards, debit cards, and electronic funds transfers. Customers may also have the option to pay via checks for their shipping services. Additionally, some corporate accounts may allow for net terms, which enable businesses to settle their invoices at a later date. It is advisable for customers to review the specific payment options available on the SAIA website or inquire directly about any unique payment solutions that may be offered to account holders. For the most current and detailed information regarding payment methods, visiting the official SAIA website is recommended.