To use the Southwest Low Fare Calendar for the cheapest flights, visit Southwest’s official website and select the “Low Fare Calendar” option. Enter your departure and arrival cities along with your desired month of travel. The calendar will display a full-month view of the lowest available fares for each day. Choose the dates showing the lowest prices to save the most on your trip. T... https://www.topairlinerules.com/blogs/southwest-low-fare-calendar-guide