How to Use the Southwest Low Fare Calendar for the Cheapest Flights Finding affordable flights can feel overwhelming, but Southwest Airlines makes it simple with its Southwest Low Fare Calendar. If you’re looking to save big, the Southwest Low Fare Finder is your best friend. This tool helps travellers find the cheapest flights available throughout the month in one quick search. https://www.topairlinerules.com/blogs/southwest-low-fare-calendar-guide