Dividend Miles

I fly a lot in both directions in Las Vegas. I always fly USAir because it is the only non-stop flight.
I heard miles dividend, but have no idea what it is ... Is there a credit card, if I use it I will run miles?
How exactly does this work?

Dividend Miles frequent flyer program USAir. Sign up for this to usair.com and get a number Dividend Miles few weeks later you receive a card and a welcome kit. When you book your trip, make sure to log in to your Dividend Miles account to the purchase and your number will automatically be associated with DM ticket purchase. If you buy from a reseller such as Expedia, be sure to ask your DM number when you check in. This way, USAir keeps track of all the miles you fly and if you have enough, you get some benefit from Nice.

Fly 25.000 miles a year (and flying miles, no credit card miles) and you arrive at Silver privileged status, which is the lowest level of the elite. Once you have Elite, you are automatically placed in a queue to upgrade when you buy a ticket. If there is a seat available when changing your turn to be upgraded, they put you in first class for free. Being Silver, or you can not get updated --- those who have Gold, Platinum and Chairman's status get updated before Silvers, but depending on when you travel, you can have a shot.

Even if you do not get updated, you can choose better seats than row passenger non-status output --- reservation before your arrival at the airport (Nice! Extra legroom) or other "better" seats that the average person can t, "select. You also get to board the plane before the rest of the population which means you will always find space for your luggage into the trays.

You can also obtain credit cards USAir to earn more miles, but they are only "redemption" miles --- you can use a free ticket which is good, but they do not help to establish status. So if you fly 20.000 miles and gain another 5000 credit card, you are not yet a member favorite.