So it is nothing spectacular but....

"Earn 1,000 bonus miles between Chicago and Edmonton
Dates: October 2, 2004 through January 31, 2005
Offer: Earn 1,000 bonus miles on new service between Chicago and Edmonton, Canada. Register online then fly a paid, qualifying roundtrip on this new nonstop United Express flight in any booking class between Chicago and Edmonton.
Register now: You only need to register once. Register online now.
Terms and conditions: Offer valid only on nonstop flights between Chicago (ORD) and Edmonton (YEG). Offer is combinable with other combinable offers. Offer may be earned a maximum of three times. Offer valid on all qualifying, paid published roundtrip fares. Roundtrip is required. A roundtrip is defined as travel from an origin city to a destination city with return travel beginning in the outbound destination city back to the first origin city with all segments on United. Open jaw or circle trip itineraries do not qualify. Registration is required by 1/31/05 to qualify for this offer. Valid only for residents of the U.S., Canada, Puerto Rico and the US Virgin Islands with E-Tickets purchased in these locations. Not valid on government fares. E-Ticket purchase required. Valid only on flights operated by United, United Express or Ted and not valid on United-marketed code share flights operated by other carriers. Must be a Mileage Plus member to participate in this offer. Flights must be credited to the Mileage Plus account in order to qualify. Offer subject to change without notice. Other restrictions apply"