All flight + cruise packages come with Blue Fare, which guarantees a free carry-on in addition to a personal item (purse or backpack) on your JetBlue flight. If you wish to bring one or more checked bags, you’ll have to purchase those after booking or during check-in. The cruise ship allows you to bring up to two suitcases (less than 50 lbs), a carry-on and a personal item (purse or backpack) for no additional fee.