http://www.swoodoo.com/de/powersearch<p>Swoodoo had a very good approach to this. You could type your departure country and your arrival country and it would query all flights between them.<p>You could pick a date, it even lists you the cheapest dates and then you could proceed to book your cheap vacation.<p>Unfortunately Swoodoo now changed the featureset of Powersearch so that you can't put to big locations.<p>So for example, the following query would go through in the past:<p>Start: Europe
End: World<p>or<p>Start: Germany
End: World<p>It had advantage of booking really cheap vacations but now its gone.
Anyone know why they did this and why is nobody able to do it? I mean it can't be that hard on the technical site, so are they maybe pressured by airlines?