Add Yahoo as a preferred source to see more of our stories on Google. First-time flight upgraders should be aware of business and first-class etiquette. A flight expert shared his top tips for ...

I flew first class with Delta for the first time. I was surprised by the food, in-seat amenities, and bathroom products.

First-time flight upgraders should be aware of business and first-class etiquette. A flight expert shared his top tips for blending in with passengers who often book premium cabins. He said not to ask ...