Yes, tipping shuttle drivers is standard etiquette in North America, particularly when they provide additional service beyond just driving. For a standard hotel or airport shuttle, a tip of $2 to $5 per person is customary, especially if the driver helps you load and unload heavy suitcases. If you are a solo traveler with just a backpack, a simple $1 or $2 tip is a polite gesture of appreciation. For private shuttle services (like a pre-booked van for a large group), the tipping standard often mirrors that of a taxi or ride-share, which is roughly 15% to 20% of the total fare. In some European or Asian countries, tipping shuttle drivers is less common and may even be unexpected; however, even in those regions, a small "round-up" of the change or a 1-2 Euro coin is often appreciated for exceptional help with luggage. Always keep a few small bills or coins handy when traveling, as shuttle drivers often rely on these gratuities to supplement their hourly wages, and it serves as a direct way to thank them for a safe and on-time arrival.