Originally Posted by Kent Wang
Hard liquor is absolutely essential. The airline booze is of poor quality and hugely overpriced. A flask is fine for domestic but I bring a 750ml or 1L bottle for any flight longer than five hours. Bringing your own food is nice too.
Kent, are you saying that you fill a bottle that was used for another beverage with vodka? Or are you claiming that you open and drink from a bottle of vodka on a flight?
Alcohol is free on domestic flights in business and first on US airlines, usually $5 in coach.
On longer flights, I am somewhat concerned about dehydration, DVTs and the like, so I personally limit the alcohol to about 2 drinks.