Booking Delta Airlines flights online is a convenient and user-friendly process that can be completed in a few simple steps. Start by visiting the Delta Airlines official website or use a reputable online travel agency (OTA) to access their booking system. Here's how: Enter Your Details: Begin by entering your departure and destination cities, travel dates, and the number of passengers. Click "Search" to see available flights. Select Your Flight: Browse through the options, considering factors like flight times, layovers, and fares. Once you've chosen your desired flight, click on it to proceed.