Wi-Fi isn't available on any Allegiant flight, the airline notes on its FAQ page for in-flight services, nor does Allegiant ...

Airline etiquette: Tips for how to act on a flight 07:11. A veteran flight attendant and union leader has a message for passengers this summer: Air travel is going to be a "beast," so please behave!

Several airlines offer free in-flight Wi-Fi, either to all passengers, elite status members or co-branded credit card holders. Here's which airlines offer it.

Stay in your seat. The flight attendants can’t predict when turbulence will hit, so do they a favor and stay in your seat unless you are headed to the bathroom.

A bad flight with heavy turbulence or some other problem may trigger an anxiety that persists, he said. Campbell, who has other forms of anxiety, developed a fear of flying a few years ago.

If a flight attendant greets you upon boarding, don't just ignore them. A simple "good morning" or "good evening" does it. How would you like to greet 20 people in a row and be greeted by silence?

The first leg didn't look that difficult: about 10½ -hour overnight flight from Buenos Aires to Houston. But looks can be deceiving. I started the day standing in a long line at a small airport ...