JUUL is safe for travel, but most airlines restrict the use of vaporizers. Double check the full list of prohibited items by the TSA.
Exposure to extreme altitude changes can cause leakage in JUULpods, especially if they're partially used. You should dispose of partially used JUULpods before you get on a plane and use a fresh one when you land. If your JUULpod leaks, it's best to avoid direct contact with the liquid.
If your hands come in contact with the liquid, wash with soap and water. You can use a JUULpod even if some liquid escaped, but carefully wipe it off with a clean cloth or tissue before inserting into your device. If leakage persists, please contact the JUUL Care Team.