Thanks for the advice regarding Ryanair. Yes, I know they suck. But everything has a price. Since I'll need to fly 5 people onwards from DUB, price will be important -- and I am familiar with Ryanair's deceptive practices that make their fares appear cheaper than they are. If anyone else is competitive in cost with FR, I'm sure we'll choose to fly them instead. That's the stuff I'm trying to figure out.

What the easiest place to check intra-Europe fares, especially when you're flexible on destinations (since we'll be going to the Continent for a couple weeks, we're quite flexible on our arrival airport)?