With over 68 million annual passengers, Hong Kong International Airport is the third largest passenger airport in the world, as well as the eighth busiest. Due to a flight delay in Guam, we had just 30 minutes to catch our connecting flight to Vietnam in this bustling airport metropllolis. A high energy gate agent escorted us through throngs of other travelers, a busy security check, and two different airport shuttle buses. In the end, we were the last passengers to board, but made the flight. Once onboard, we discovered we were on the exact same plane that we exited just 30 minutes earlier, and were now assigned to seats 20 E and F (we sat in seats 20 A and B on the first flight). Due to a required security formality, we had just circled the entire passenger terminal just to make it back onboard. It’s the first time we almost missed a flight we were already onboard.