Sometimes staff travel is not available and on less frequent routes in peak season can be hard to find, though I find from Belfast if in the case that I cannot get staff travel to where I am going directly, I sometimes do a connection somewhere in UK or on continent as appropriate, AMS, LGW, STN, LTN, MAN etc. Still represents good value for money. And if the direct flight comes up nearer the time I can ring and for £5 change to it and move the 2nd flight of the connection to a different route and different day.
I find staff travel great for host of reasons, not only the price but the avoidance of admin fees, credit card charges and very low prices for suitcases, it also means certainty ie not on standby. well done easyJet.
EI-BUD