I would run it by the gynea and let him know your plans. I had to travel to India in my 5th month and informed my gynea. He gave the green light and also fit to travel cert as some airlines may ask for it. I also did babymoon at 6th month to Thailand. In all, if there is no health concern from your gynae, I see why not.
Go for it! Week 16 is still good. But do get a green light from your gynae first