If you are going to fly Alaska Airlines you need to know that you may be charged for the luggage that you check. This is not always the case, but the airline does have fees in place for excess, overweight, and oversize luggage. Knowing these fees before you arrive at the airport will make things much easier on you.
The first, second and third checked bag is $20. Bags after that are charged at $50 each.
Additionally, you may also incur fees for overweight or oversize luggage. Bags weighing less than 50 pounds will not be assessed a fee. Those between 51 and 100 pounds will cost $50. Any bag weighing more than 100 pounds must be shipped as air cargo.
Oversize fees come into play for bags larger than 62 linear inches. Bags between 63 and 80 inches will be assessed a $50 fee. Those 81 to 115 inches will be charged at a rate of $75.
As you can see, Alaska Airlines allows each passenger to check one bag free of charge. But if you get into more than one bag or those that are too heavy or too big, you will have to pay additional fees.