Join Date: May 2003
Location: Salt Lake City, Utah, DL DM since inception, 3+ MM, HH Gold, SPG-Gold
Programs: DL, UA, AA, HH, SPG, HH, Hertz, Avis
Posts: 1,838
I travel BOI-CPH/SLC-CPH several times a year, and find it very convenient, usually through SEA when from BOI. It is fast and convenient, connecting either in AMS or CDG with frequent departures to CPH (and to several other smaller cities in DK like AAL (KLM) or BLL (both KLM and AF)). DL Flies to CPH directly from JFK, but I find there is really no time advantage to taking that route when you live out West.
I honestly have not looked into other ways to do it as I try to fly only DL, but there is a SAS CPH-SFO if you are interested in Star Alliance - know close to nothing about One World
Regarding matching, there are multiple threads explaining the possibilities in detail