[wkat4242]

Yes there is. Offset is not a sustainable method, it just shifts the blame to someone else, and fuels aren't the only CO2 emitted by an airplane (other points are the manufacture, maintenance, logistics etc).

Also, you don't really get to choose what you fuel your private plane up with. Most places only provide plain Jet-A1. An airline has the regularity and scale to organise this themselves, a private operation surely doesn't.

And most jets aren't certified for 100% biofuel.