I've had to do some pricing for family and have found that Iberia has had some pretty nice fares in the past (last summer EU)

I would always look at direct websites, like KLM running connecting special say MSP thru AMS to combat Iberia deals. Similar may be true to go past SVQ (Lufthansa via Fra?) to get good $

It's a game sometimes and keep in mind some engines like Orbitz etc only offer their cohorts so maybe there's a special on anotehr site that doesn't show--I know we're all a bit smarter than the average rev but they don't know half this stuff either!