Per passenger, Southwest Airlines Baggage Policy provides two complimentary checked bags up to 50 pounds and 62 inches (L+W+H). Bags weighing 51-100 pounds or measuring 62-80 inches are subject to a $75 fee. Carry-on baggage is permitted along with one personal item; certain items, such as sporting goods and musical instruments, are subject to special regulations. Please visit the Southwest Airlines website for comprehensive details and restrictions.