Medically required liquids will be subject to additional screening that could include being asked to open the container. You can bring your medication in pill or solid form in unlimited amounts as long as it is screened. You can travel with your medication in both carry-on and checked baggage.

Yes, Delta Air Lines—following TSA and international aviation guidelines—strongly encourages passengers to pack all essential medications in their carry-on luggage rather than checked bags. This ensures that your medicine is accessible during the flight and prevents loss or damage due to temperature fluctuations in the cargo hold. You are allowed to bring both prescription and over-the-counter medications in pill, liquid, or gel form. Liquid medications in excess of the standard 3.4-ounce (100ml) limit are permitted but must be declared to security officers at the checkpoint for manual inspection; it is helpful to keep these in a separate bin. While not always required for domestic U.S. travel, it is highly recommended to keep your medications in their original pharmacy packaging with your name clearly printed on the label. For international travel, you should also carry a copy of your doctor's prescription or a "Letter of Medical Necessity," especially for controlled substances or injectables (like insulin or EpiPens), to ensure a smooth transition through foreign customs.