Potential Exposure to Germs: Be aware of the potential risk of exposing your feet to germs and bacteria when wearing flip flops on a plane. High-traffic areas like airports and airplanes can harbor harmful microbes that may lead to infections and illnesses.
Is it better to wear sandals or shoes at airport?
To avoid the germy possibility of striding barefoot through the airport, it's best to avoid anything that might set of the machines and instead stick to basic slide sandals or my footwear of choice, slip-on sneakers. And if you find yourself still needing to remove your shoes, make sure you have socks handy.
Should you wear socks at the airport?
You can leave your socks on when going through security at the airport, but if you're headed to a warm climate, you may roll up with your sandals on, sans socks. In those situations, it's a good idea to pack extra socks in your bag so you're not stuck in the line barefoot.