A series about the inner workings of Southwest Airlines, both from the air and especially at the airport.
If it sounds a bit familiar, you're not imagining things: A&E did a series called Airline
a few years back, also featuring SWA, and is simply the US version of a UK TV series of the same name, which aired here as Airline UK.
From what I saw in the previews, it appears to be a blatant ripoff of Airline.
However I did enjoy that series, so I've set a season pass for it.