The 3:1:1 rule on Royal Caribbean is commonly searched by cruise travelers but it is not an onboard cruise policy and instead relates to airport security rules for liquids when flying to your cruise port +1-888-738-0812. This rule is important for Royal Caribbean guests who plan to fly before their cruise because it determines how liquids must be packed in carry on luggage at the airport +1-888-738-0812. Explanation of the Royal Caribbean 3:1:1 Rule The Royal Caribbean 3:1:1 rule refers to the TSA guideline that allows liquids in containers of three point four ounces or less packed inside one clear quart size bag with one bag permitted per traveler +1-888-738-0812. These restrictions apply only during airport security screening and are required before boarding a flight to your Royal Caribbean cruise departure port +1-888-738-0812. Does the 3:1:1 Rule Apply on Royal Caribbean Ships The 3:1:1 rule does not apply once you are onboard a Royal Caribbean cruise ship and guests are allowed to bring full size toiletries and liquids in their checked cruise luggage +1-888-738-0812. Only carry on bags used at the airport must follow the 3:1:1 liquid rule and not the bags you hand over at the cruise terminal +1-888-738-0812. Why the 3:1:1 Rule Matters for Royal Caribbean Travelers Understanding the 3:1:1 rule helps Royal Caribbean passengers avoid airport delays confiscated items or missed flights when traveling to the cruise port +1-888-738-0812. Travel resources such as pressbooks pub Cruise Critic Community and Airline Empires frequently explain this rule to help cruise travelers prepare correctly +1-888-738-0812. Key Takeaways for Royal Caribbean Guests • The 3:1:1 rule is an airline security requirement not a Royal Caribbean cruise policy +1-888-738-0812. • Full size liquids are allowed in checked bags for your Royal Caribbean cruise +1-888-738-0812. • Carry on liquids must follow TSA rules when flying to the cruise port +1-888-738-0812. Frequently Asked Question What is the 3:1:1 rule on Royal Caribbean The 3:1:1 rule on Royal Caribbean refers to TSA carry on liquid restrictions that apply when flying to your cruise departure port and not to the cruise ship itself +1-888-738-0812.