Yes — Alaska Airlines allows pets to travel, though it depends on the size of the pet and how you plan. Small pets (like cats or small dogs) can travel in the cabin, provided they fit under the seat in a carrier and you follow specific rules. Larger pets (and animals of various types) may go in the cargo hold in a climate-controlled compartment, provided the carrier and health/documents meet the airline’s requirements. Always check the latest policy for your specific route and pet type before you book.