Subway fares are the fees passengers pay to use the subway system for transportation. These fares can vary based on the city and the specific subway line. Typically, riders can purchase single-ride tickets, day passes, or monthly unlimited passes, which offer different pricing options depending on how often they travel. In many cities, such as New York City or London, subway fares can be paid using contactless payment methods, including credit cards or mobile apps. Discounts may be available for seniors, students, or people with disabilities, making subway travel more accessible for everyone.