Southwest baggage fees would be applied if you want to go for the locking luggage facility. With respect to the Southwest Airlines checked baggage policy, the airline is not responsible for the damage caused to the locked items.Southwest baggage rules are strict, allowing two bags per passenger.These extra bags can cause you high Southwest baggage fees if you purchase them from the airport. In addition to the southwest airline baggage policy of this airline, knowing its reviews can be helpful prior to make a flight reservation. Click here to go through these Southwest Airlines reviews.