
Hopefully help someone.
I think that flying is more expensive for me, even with real budget airlines!
With the ferry it's £50 in diesel return, £43 for the crossing and £30 in tolls giving a total of £123. It'd cost £30 to get to the Airport and back, £50 in parking and then probably £20 per person in transfers giving a total of £100.
I'm not sure we could get two adults and two children's plane tickets for £23.