The $5 hike is specifically designed as a "nudge" to get travelers to use the airline’s updated mobile app and online tools.

Fort Worth-based American Airlines has announced its plans to increase the cost of checking a second bag. For those who aren't prepared enough to pre-book it online, that is. The oneworld carrier ...

It incentivizes planning ahead of time.

When I book flights these days, I just assume that I’m going to be paying substantially more than the initial listed price ...