It is generally recommended to keep water bottles or any other liquids in your carry-on luggage rather than placing them in your checked luggage. Here’s why:

1. Security Screening: When you go through airport security, all carry-on bags are subject to screening. Liquids in containers larger than 100 milliliters (3.4 ounces) are typically not allowed in carry-on bags unless they comply with the airline’s rules for carrying liquids in a clear, resealable plastic bag. Placing water bottles in your carry-on allows you to comply with these restrictions and facilitate the security screening process.
2. Accessibility and Convenience: Having water bottles in your carry-on bag ensures easy access to hydration during the flight. It is important to stay hydrated, especially on longer flights, and having water readily available in your carry-on allows you to drink whenever you need to without having to rely solely on the airline’s beverage service.
3. Leakage and Damage: Checked luggage can be subject to various handling conditions during the flight, including changes in temperature and pressure. There is a higher risk of water bottles leaking or getting damaged in checked bags, which can potentially damage other items or cause inconvenience.

However, it’s essential to check the specific regulations of the airline you are flying with, as some airlines may have additional restrictions or requirements regarding liquids in both checked and carry-on luggage. Always comply with the airline’s guidelines to avoid any issues or delays during your travel.

If you want to bring water with you on your journey, it’s recommended to carry an empty water bottle through security and fill it up with water from a water fountain or a designated filling station once you are past the security checkpoint. This way, you can have a water bottle with you for the flight without violating any liquid restrictions