They don't do "free" leis but you can order one off of the internet,
Prices range from about $17 to $50 for the very fancy ones.
Two years ago, they had the greeters from the company meet you at your fight but they might now meet you at the baggage area.
(one thing about the flowers. They usually use a purple colored flower that is very pretty and has a strong scent to it. We could only wear them for a short time and then we had to put them in the trunk