Question
I'm planning to have a 7-day retreat for my US clients in the Caribbean. When they pay for the retreat, their accommodation and meals and local transport will be covered, but their flights won't. Do I need to have a US travel license for my business to sell this retreat?
Answer
Probably, but it depends on the state(s) in which your customers are located. Travel agent licensure/authorization in the US is governed by state law. In California, for example, the California Attorney General's Office administers the Seller of Travel Program: https://oag.ca.gov/travel
Start by figuring out where your customers are located, then you can research each state's law. Here's a starting point: http://travellaw.com/page/travel-law-faq