Has anyone won at the Airport Comming OR GOING HOME. The slot machines at McCarran airport are calibrated to a significantly lower payout percentage. If you're visiting Las Vegas for the first time you'll be surprised to learn that even McCarran airport has slot machines. Find out everything you need to know. Slot machine player wins cash with just $5 dollars, pretty nice way to arrive at Las Vegas! Must be Nice. Walking through the airport from my gate to baggage claim, I passed clusters of slot machines here and there and found myself in awe. This is what people mean when they talk about "loose" slots - that the machines are calibrated to a higher payout percentage. IrishFan 52, forum posts. Where is a low fee ATM? After my purchase I had 80 cents. Never tried merkur heidelberg machines in Vegas, but in up north in Reno I had some time to spend before my flight to LAX and then home to Australia.