Looking for cheap flights between places like Germany and England, Scotland and Ireland, Scotland and France etc? Wondering if it’s better to look at airlines sites or a particular search sight?

Always look at the airline’s site. Especially the budget airlines like:
* Ryanair (add all the extra costs and then start comparing)
* Easyjet (favourite)
* Vueling
* Air Berlin (good one, book well in advance)
* Jet2

Don’t forget to check if there’s a regional airport nearby. Be flexible on date, time etc.