I got a letter too, called and they said they were hired by US Airlines. They stated that all they want to do is give me the 2 free tickets, worth 1,450.00 and all I had to do was pay taxes and go to their travel agency. The Key words to me were " Do you make over 50,000 a yr" if your response is no, then I am positive that they don't want to talk to you. Now, if these were free tickets than why do they need to know how much I make. I wouldn't supply the info and the Manager got on the phone and said that, " This is no scam. time share, etc..." However, if you won 2 tickets then why do you need to make over 50,000???  I found it odd that they never said their Company name, only that they were hired by the Airline. I have a AA Mileage Credit card but the new employee said that its US that hired them?
It goes back to that old saying, "If its too good to be true than it is!"

Thanks, I got a letter that said "I qualified to win 2 round trip airline tickets", the letter and letterhead was nondescript and I could have made better. Keyword word here is qualified , Dug a little deeper and details are here:
http://www.fodors.com/community/air-travel/us ... icationscam.cfm

It's a scam for sure.
Got the same letter and with a little googling it was confirmed. Don't fall for it.

I received a letter from US Airlines saying I won 2 tickets, the number to call was 844 792 7001, I think its a scam