Sun Country Airlines Booking Passengers who wish to book and reserve seats may do so by calling Sun Country Reservations. Representatives are available 24 hours a day, 7 days a week to guide the Sun Country Airlines booking and booking process. Sun Country Airlines online booking method Sun Country Airlines online method allows passengers to book and reserve seats on the official website. Follow the steps below. Open a dialog at the top of the site page. Fill in the required credentials such as arrival, departure, date of travel, round trip and more. Also complete the section below with your name, age, email. email address, phone numbers, etc. Continue with payment options. Confirmed tickets will be mailed to the email address provided by the traveling passenger through Sun Country Airlines Reservations and Reservations. To reserve and reserve hotel packages with more than one room for more than 10 people, passengers must complete the form provided on the Sun Country Airlines website.