Frontier Airlines allows passengers to bring their own food and non-alcoholic beverages on board. This is a great option for travelers who have specific dietary needs or simply prefer to enjoy their own snacks during the flight. However, it is important to note that any liquids must comply with the Transportation Security Administration regulations regarding carry-on items. Typically, this means that liquids should be in containers of no more than 3.4 ounces and placed in a quart-sized clear plastic bag for screening at security. Passengers should also be aware that while they can bring food and drinks, Frontier does not allow the consumption of alcohol that is not served by the flight crew. For specific questions about prohibited items or to ensure compliance with current policies, it is advisable to check the official website of Frontier Airlines.