Well, somebody at Delta Airlines made a mistake today and I (and a thousand other people, I'm sure) capitalized on it.
I bought a ticket from LA to Copenhagen for $320 round trip, including taxes. From the East Coast fares were under $200. The fare was also good to Stockholm, Madrid, Venice and Helsinki, among others.
If I wasn't already going to Switzerland and Bamberg next month I could have snuck in a couple more trips. But I'll be happy with my four days (April 8-12) in Copenhagen, checking out the beer scene.