Just stumbled across this:
Southwest adds nonstop flight to Denver from Sac International
mglover@sacbee.com
Published: Friday, Oct. 23, 2009 - 8:51 am
Southwest Airlines, the largest carrier out of Sacramento International Airport, said it will add an additional nonstop Sacramento-to-Denver round-trip route in May next year.
The new flight will boost Southwest's nonstop Sacramento-Denver service to three daily flights. Tickets for the new service will be offered for sale in December.
Southwest said the new flight is part of a significant expansion of service at the Denver hub -- 13 new daily flights, including five new nonstop destinations out of Denver starting on March 14.
The new destinations are Ontario, Boise, Detroit, Washington Dulles and Hartford, Conn. Tickets for those cities are on sale now.
http://www.sacbee.com/latest/story/2276860.html