Southwest Airlines is a reliable and low-fare airline. However, there are certain tricks to find even cheaper flights with Southwest Airlines. Moreover, with the Southwest Airlines Low Fare Calendar, now, you can avail yourself of the best prices anytime and anywhere. This was introduced to layout airfare in advance according to months. It helps the passengers to determine and book flights at the best rates possible.  Southwest Airlines encourages its passengers to book flights with low airfare. And it supports…