Online food delivery has become an important part of modern consumer purchasing behaviour in the digital era. With the rapid growth of smartphones, internet access, and digital payment systems, many consumers are shifting from traditional food purchasing methods to online food delivery platforms. Applications such as Swiggy and Zomato provide convenience, a wide variety of restaurant choices, easy ordering, attractive discounts, and doorstep delivery services. This study examines consumer preferences and buying behaviour in online food purchasing and identifies the factors influencing the transition from traditional food purchasing to online food ordering. Primary data were collected through a structured questionnaire from consumers in Coimbatore City, and various statistical tools were used for analysis. The findings reveal that convenience, time-saving, food quality, price, and promotional offers are the major factors influencing consumers to order food online. The study concludes that although online food delivery services are widely preferred by consumers, improvements in delivery speed, service quality, and pricing strategies are necessary to increase customer satisfaction and encourage further growth of online food purchasing.