Southwest Airlines Checked Baggage fees
First checked bag: Free
Second checked bag: Free
Any additional bags: $110
Checked luggage size and weight restrictions
Checked luggage should not exceed 50 lbs and 62″ in dimension (length+width+height).
Bags weighing 51-100 lbs will be charged a $50 overweight fee
Bags between 62″and 80″ will be accepted for a $50 fee
Passengers are permitted one piece of carry-on baggage and one personal item, such as a purse or laptop. Carry-on bags cannot exceed the dimensions of 24″x 16″ x 10″.
Bicycles are accepted as a piece of checked luggage, and incur no extra fee if it does not exceed the size and weight requirements. If the bicycle does exceed the size and weight requirements it will be accepted for the fee of $50 one way. The bicycle must have the handlebars, pedals and kickstand removed and placed in the box. A cardboard box will be flown as a conditionally accepted item.
Baggage fees for children
Southwest offers infant and child fares for children. If the child is a ticketed passenger he or she receives his or her free checked baggage allowance. Additionally, one stroller and one car seat will be allowed per traveling child with no extra charge. These items may be checked or gate checked. If the child is a ticketed passenger or if there is an empty seat next to the parent, approved FAA child restraint seats may be carried on board without counting against the carry-on luggage allowment.