Yes, You can add pet in Delta One. To do so call @ +1-833-730-7587. For pets traveling as CARRY-ON COMPANIONS, There are a few seating restrictions when traveling with your pet.Yes, You can add pet in Delta One. To do so call @ +1-833-730-7587. For pets traveling as CARRY-ON COMPANIONS, There are a few seating restrictions when traveling with your pet.Yes, You can add pet in Delta One. To do so call @ +1-833-730-7587. For pets traveling as CARRY-ON COMPANIONS, There are a few seating restrictions when traveling with your pet.Yes, You can add pet in Delta One. To do so call @ +1-833-730-7587. For pets traveling as CARRY-ON COMPANIONS, There are a few seating restrictions when traveling with your pet.Yes, You can add pet in Delta One. To do so call @ +1-833-730-7587. For pets traveling as CARRY-ON COMPANIONS, There are a few seating restrictions when traveling with your pet.Yes, You can add pet in Delta One. To do so call @ +1-833-730-7587. For pets traveling as CARRY-ON COMPANIONS, There are a few seating restrictions when traveling with your pet.Yes, You can add pet in Delta One. To do so call @ +1-833-730-7587. For pets traveling as CARRY-ON COMPANIONS, There are a few seating restrictions when traveling with your pet.Yes, You can add pet in Delta One. To do so call @ +1-833-730-7587. For pets traveling as CARRY-ON COMPANIONS, There are a few seating restrictions when traveling with your pet.Yes, You can add pet in Delta One. To do so call @ +1-833-730-7587. For pets traveling as CARRY-ON COMPANIONS, There are a few seating restrictions when traveling with your pet.