Investors, I came across an interesting chart today.

It looks like people from the US are starting to use air travel more and more and that means airlines could do well and I think next Q airline results will be very solid.
Top US airline stocks :
Airline stocks are volatile, but I certainly wouldn't say it's a bad investment.
I have been looking at $DAL and I have to say that I quite like this company and plan to take a closer look at it.
In addition, yesterday $DAL reported their Q results which were very solid ( I posted on DAL status results yesterday ).
How do you view these companies and do you have any stocks from this sector included in your portfolio?