Up to $150.
For example, if you paid $500 for a ticket and you had to change or cancel your flight, you would get a credit voucher of $500 on US Airways and would have to pay the change fee to access the credit. Search Southwest Flights. 1  When you have to change your flight, some airlines charge up to $150 on top of paying a difference in fare. 2  Unlike our competitors, we understand unexpected events may happen. 3  Our No Change Fees Policy lets our Customers know we care. That’s why here at Southwest Airlines we continue to offer maximum flexibility if you need to modify your travel plans, by not charging change fees. If you need to change an upcoming flight itinerary, you’ll only pay the cost in fare difference and will never incur a separate change fee. We don’t charge you for changing your mind, your plans, or otherwise. So you can rest assured when booking your next Southwest Airlines flight that change fees don’t fly with us. At the time you make the change, the great $250 fare is gone and flights on the new dates are selling for $375. To switch to that flight, Delta would charge a $200 change fee, plus another $125 for the fare difference ($375 minus $250). So the change you want to make would cost $325 total. When you fly with Southwest, sit back, relax and enjoy. 1  When you have to change your flight, some airlines charge up to $150 on top of paying a difference in fare. 2  Unlike our competitors, we understand unexpected events may happen. The cost to change a flight depends greatly on the airline that you have purchased your ticket from. Airlines have “penalty fees” that can range from $0 to $400.00 (yowza!) to make a change to your ticket. For domestic flights, most airlines charge around $200. But the penalty is not the whole story.
http://articles.latimes.com/2013/may/27/travel/la-tr-money-20130527 https://www.southwest.com/html/air/no-fees.html https://www.southwest.com/html/air/nochangefee.html https://www.cheapair.com/blog/travel-tips/ask-cheapair-how-much-does-it-cost-to-change-an-airline-ticket/ https://www.southwest.com/html/air/no-fees.html https://www.cheapair.com/blog/travel-tips/ask-cheapair-how-much-does-it-cost-to-change-an-airline-ticket/
cost to change flight southwest