They include the Delta Airlines Low Fare Calendar on Lowfarescanners which is quite useful for any consumer who wants to make a lot of savings on their travel costs. This makes it convenient to have the opportunity to look at the lowest obtainable fare quotation for some days and plan a trip according to such quotations. When you choose a certain range of dates you are given an opportunity to check on the calendar on the variations the price has for each particular day of the month, when booking flights.