BMI Regional typically accepts a variety of payment methods for flight bookings to accommodate the needs of their passengers. Generally, customers can use major credit cards such as Visa, MasterCard, and American Express. Debit cards are also usually accepted, provided they bear the appropriate logo. In some cases, passengers may have the option to pay via PayPal, depending on the specific booking platform used. Additionally, certain currency options may be available, allowing customers to pay in their local currency. It is advisable to visit the official BMI Regional website for the most accurate and up-to-date information regarding payment options, as these can change over time. The website should provide details on any specific requirements or limitations pertaining to payment methods.