The per person fee is all-inclusive once you arrive. For all the international trips, this means all costs are covered once you land in the country you’re traveling to. For the Chicago trip, all costs are covered once you get to the site in Chicago except ground transportation. Chicago teams will utilize their own transportation. Most teams drive, so this typically isn't an issue. But if you fly in, you will need to rent vehicles.
What’s not covered: Airfare to the country you’re visiting (international trips) or transportation to Chicago (domestic trip). Oh, and souvenir money (which in most cases, shouldn’t be more than about $20 - $40, but is totally optional).