You can’t always rely on leaving on time. Delays, which can result in missed connections, and cancelations are, unfortunately, part of everyday travel. They often happen without any warning, too. So, what do you do when your flight is delayed indefinitely? Stay hydrated, use the Wi-Fi, take a leisurely stroll around the airport, go to an airline club if you are a frequent flyer, and even go out of security. Yes, you can, if and only if you have a boarding pass for the next flight.