At Southwest, your first two checked bags are free (weight and size limits apply). Skis1 and golf bags2 are also permitted to fly free, and surfboards are permitted to travel free in Hawaii. Each additional bag and any oversized bag (weighing more than 50 pounds or measuring more than 62 inches) costs $75 one-way. As a Southwest passenger, you are permitted one carry-on bag and one personal item.
Southwest offers free checked baggage and is the only airline that allows two bags with all fare categories. Checked luggage are limited to a maximum weight of 50 pounds and a maximum linear dimension of 62 inches.
Passengers on Southwest flights are permitted to bring one piece of carry-on luggage and one personal item.