The airlines simply have a lot more money right now... They're taking some of those profits and plowing them back into an improved product.

Until the airlines are able to guarantee the bags are going to be at baggage claim within a certain period of time, the tendency is going to be to carry on.

There's ... a liability issue. If an American Airlines plane hits clear air turbulence and someone is injured, they can fall back on the fact that they have it stated in their policy that they must be seated with their seat belt fastened at all times.

One common mistake that people make is they think that they're checked-in for the flight if they've simply checked their bags and that's not always the case.

The traders are simply taking profits. They want to lock-in their gains before the inventory report comes out on Wednesday.

Improved consumer choice and improved airline profits represent a win/win situation. Airlines that provide consumers flexibility - choice, control and convenience - can more effectively compete for consumers' business. Choice instantly increases consumer confidence, because when you know what you're getting, you are more likely to be loyal.