Hiya,
Starting salary is around £10,200 for new crew, plus £2.91ph flight pay.
Tfly is one of the few airlines that give LH straight away they can vary from 18 hours downroute anything upto say 15 days however this summer from LGW they are around 2 to 5 days.
We only do LH from LGW/MAN/BHX/CWL/DSA However from next year will only be LGW/MAN/BHX/NCL so if LH is important please choose carefully.
MAN/LGW are best for LH.
With your flight pay in an average year you can virtually double your earnings to around 20-21k easy.. however many earn more than this, but this is the bare minimum for you to work on if you have commitments.