When traveling through international airports, one of the most common and annoying expenses is buying drinking water. Due to strict airport security regulations, passengers are prohibited from carrying liquids through security checkpoints. However, once you pass security, retail outlets inside the departures terminal charge exorbitant prices—often up to ₹250 ($3) for a single bottle of water. The ultimate hack is carrying an Empty Water Bottle. Here is how it works.
Table of Contents
2. How the Empty Water Bottle Hack Works
3. Choosing the Right Reusable Bottle for Travel
4. Locating Free Water Refill Stations at Airports
5. The Hydration Advantage During Long Flights
6. Environmental Impact of Reusable Bottles
7. Inquire About Your Seamless Travel Planning
The Liquids Ban Rule
Under international aviation security standards, you cannot carry any liquids, gels, or aerosols in containers larger than 100ml through airport security scanners. If you carry a full bottle of water in your daypack, security officers will force you to discard it before passing the gates.
How the Empty Water Bottle Hack Works
- The Hack: Drink or empty your water bottle completely *before* entering the security check line.
- Keep the empty, dry bottle inside your backpack. Security scanners only flag liquids, so an empty plastic, steel, or silicone bottle passes through security gates without any issues.
- Once you clear the security checkpoint, walk to the departures area and find a public water fountain or refill station to fill your bottle with clean, cold drinking water for free.
💡 The TPH Advantage
Airport layouts can be confusing. We design our itineraries with clear transit maps and coordinate premium transfers to ensure you navigate departure gates easily and comfortably.
Choosing the Right Reusable Bottle for Travel
- Foldable Silicone Bottles: These are highly popular for travel. They can be rolled up flat when empty to save space in your bag, and expanded to hold 750ml of water when filled.
- Insulated Steel Bottles: Keep your drinking water ice-cold for hours, which is perfect during summer travels.
Locating Free Water Refill Stations at Airports
Almost every major international airport (including Delhi, Mumbai, Singapore Changi, Dubai, and Heathrow) features free drinking water dispensers:
- Look for dispensers located near the entrance of public restrooms, or ask airport staff: *”Where is the nearest drinking water refill station?”*
The Hydration Advantage During Long Flights
- Cabin air on long-haul flights is dry, leading to dehydration, fatigue, and dry skin.
- Instead of waiting for flight attendants to serve tiny plastic cups of water every hour, having your own large, filled bottle lets you stay hydrated comfortably on your own schedule.
Environmental Impact of Reusable Bottles
By carrying a reusable bottle, you prevent buying single-use plastic bottles, which reduces plastic waste and contributes to green, sustainable tourism practices.
Inquire About Your Seamless Travel Planning
Ready to experience a comfortable, premium international holiday with complete logistics safety? Let us manage your flights, transfers, and complete travel itinerary.

