Some value fares at the moment yes if you pick and choose but it is a fact that if planes are not full prices drop in the LCC world. Short term bookings in the industry have dropped like a stone since the Brexit announcement and prices reflect this. Otherwise why are flight for next April and next August at the same price level as peak summer 2016?
I may be in the minority but I don't think £250 flight only to ALC with no luggage is particularly cheap. But then I only do 100 segments a year.