Post #298422 by TikiJosh on Wed, Apr 11, 2007 2:04 PM

But after you check your bags, and go through the security checkpoint (and discard your bottle of water and whatever else), you're free to buy whatever from the duty free and then carry it on, are you not? It's been a few months since I flew last, but whatever you buy after the security checkpoints was allowable on the aircraft. I brought on a bottle of water last time.
You would have trouble if you're laying over or something like that, since you may have to cross another security checkpoint. I doubt they'd make an exception for a purchase from a duty-free shop even if it was still sealed and you had the receipt to prove it.