It is not a requirement to book flights with Marathon Tours & Travel. We do not have discounted airfare options however we are a full service agency and can assist with your flight reservations. An agency processing fee of $20/person will be applied. Airfares are constantly changing and we can quote you the lowest available rates and most convenient flights for this package. Please call 617.242.7845 from 9 AM-5 PM EST, Monday-Friday for assistance.