United Transcontinental Bonus Miles Through March 31

United has a great offer for mileage lovers:
Experience United's transcontinental p.s. flights between New York (JFK) and Los Angeles or San Francisco. Here's how your miles can add up:

Fly roundtrip in	Earn bonus award miles
United BusinessFirst®	15,000
Full-fare United Economy®	10,000
Select discounted United Economy	5,000

To qualify, register and book your travel today, then fly between January 7 and March 31, 2014.
http://www.united.com/web/en-US/apps/mileageplus/promotions/registrationDetails.aspx?promoCode=TB9M62&utm_source=TPG+Daily+Newsletter&utm_campaign=decaa08efa-TPG+Daily+Newsletter+MC&utm_medium=email&utm_term=0_2b0b8ee2b7-decaa08efa-44188789