"You’re invited to earn double miles. Simply purchase and fly paid, qualifying roundtrips on United®, United Express® or Tedsm, and you can earn double miles an unlimited number of times. For this exclusive promotion, you must book now through February 18 for travel by May 25, 2005.

Offer details:

* Registration is required by February 18, 2005.
* Valid for travel booked and ticketed between
February 4 and February 18, 2005,
with travel completed by May 25, 2005.
* Valid for travel on United, United Express and Ted.
* Valid in all classes of paid, published fares.
* Double miles may be earned an unlimited number of times.
* Offer is combinable with other offers.
* Roundtrip purchase required."