I believe Frontier used Q400s for that route with Lynx but that business is long gone. Looks like UA (Skywest) is your only service DEN-HDN.
Edited to add: This news article shows that some Q400s may still be in service, operated by Republic (parent of F9) but NOT F9 service.
http://www.steamboattoday.com/news/2...hedule-denver/
Last edited by DenverBrian; Nov 25, 2012 at 8:10 am