Delta Airlines does allows its passengers to book group flights if they have 10 or more people in the group to travel on the same flight. Travelers can select seats for the group and get other amenities. They can also make a Delta Group Travel Request through the official website by filling out a request form, or they can seek help from the dedicated group department. If you want to learn more about group bookings, you can contact Delta customer service or read the blog on the Airlines Group Travel website.