I’ve written that the flight I fear the most are United’s Hong Kong routes in economy. I wouldn’t much love American’s Hong Kong – Dallas in back either.
Hong Kong airport isn’t an ally in the War on Water. Since you can take water through their checkpoints, there’s an additional security check at the gate or on the jetway for all US-bound flights and all US airline flights (regardless of destination, for instance I’ve experienced it Hong Kong – Ho Chi Minh City on United).
The same applies to Australia flights.
You can buy water in the airport, but it will be confiscated from you upon boarding. So you’re reliant upon the airline’s flight attendants to stay hydrated flying super long haul.
I always wanted to freeze water and take it through a TSA checkppint on the basis that it thus became a solid and not a liquid. But the TSA won’t actually permit that.
The best story I ever read was an industry executive (and sometimes commenter on this blog) who bought a box of pasta at London’s Gatwick airport and was confronted at the security checkpoint because you have to add water to cook it and thus it counts as a liquid.
Pilgrims returning from the Hajj who wish to bring back holy water should pack it in their checked baggage, if the container is larger than three point four (3.4) ounces (100 ml), pursuant to TSA’s 3-1-1 liquids regulations.
Some years ago passengers bound for the US from Lourdes actually did have holy water confiscated.
Since you can take baby formula through a checkpoint I’ve thought about taking water and sticking it in a baby’s bottle. Or getting a note from my doctor that water is medically necessary.