Many seniors overlook the specific terms and conditions associated with senior citizen discounts on airfares. It's important to check if the discount applies to all flight classes or only to certain ones. Another common mistake is not comparing prices across different airlines, as some may offer better deals than others. Additionally, seniors often forget to verify their eligibility for certain discounts or fail to provide the necessary identification at the time of booking. Always review the airline's website or contact their customer service for the most accurate information before making a purchase.