How much is it to upgrade to Business Select on Southwest?

Booked your flight with Southwest Airlines and now want to upgrade your flight to an upper-class cabin for a comfortable journey. But you do not know how much you have to pay to make a Southwest Airlines Upgrade to Business Select. The cost required to upgrade a seat on Southwest Airlines varies depending on various factors. Generally, if one upgrades their seat to Wanna Get Away, then they can do so at a cheaper rate. On the other hand, for business select travelers have to pay more. If you want to know the actual airfare to upgrade, then contact the customer service of the airline.