According to Virgin Atlantic, 55% of people get emotional on planes!

If you've ever she'd a tear on an airplane and thought you were alone, then rest easy; you're not. A survey by Virgin Atlantic once found that 55% of their customers "experienced heightened emotions while flying."

Is there a particular reason why? Well, according to behavioral scientists, the most typical situations that induce crying are related to loss, separation or powerlessness.

When people go on planes, the plane trip often represents an ending, or a beginning of something. It could be a vacation or a whole new phase in life.

Powerlessness also plays in, because your life depends on the pilot. Furthermore, planes can be very lonely, especially if you're traveling alone.

(Source)