Well, there are several ways to win super bowl tickets. You can participate in sweepstakes that offer super bowl tickets to win, but those don't usually take place until close to the actual game.
The other way to get future super bowl tickets is through the official NFL Super Bowl ticket lottery / drawing. The NFL does NOT distribute Super Bowl tickets through ticket agents or travel agencies. The only way you can get your tickets (except buying them on the secondary market) is to participate in their annual drawing.
Here is what you have to do:
Entries for the random drawing are accepted between Feb. 1 and June 1 of the year preceding the game in question. All ticket requests must be sent via certified or registered mail. Those selected in the random drawing will have the opportunity to purchase two tickets. Super Bowl ticket prices usually range from approx. $500 to several thousand dollars, depending on the location of the seats.
Requests for Super Bowl XLV, to be played on February 6, 2011 at the Cowboys Stadium in Arlington, Texas, will be accepted beginning February 1, 2010. They should be sent to:
Super Bowl Random Drawing
P.O. Box 49140
Strongsville, OH 44149-0140
Please note that only one request per address is accepted. All duplicate requests will be disregarded.
Now you just have to be lucky and win your Super Bowl ticket this way.