Southwest swept several customer service categories in a recent survey . Southwest is one of the few airlines that allows customers to check their bags for free . `` Customer service is the core of our business , '' said Whitney Eichinger , a spokesperson at Southwest . Singapore Airlines was the top - rated international airline for both business and economy seating . For the forth year in a row , LaGuardia was rated the worst airline .
Southwest swept several customer service categories in a recent survey . Southwest is one of the few airlines that allows customers to check their bags for free . Singapore Airlines was the top - rated international airline for both business and economy seating . For the forth year in a row , LaGuardia was rated the worst airline .