[sokoloff]

Figure $50K year in year out for maint and an occasional $100K bad surprise. $25K for insurance and training. $25K for rural hangar and some multiple of that for big city hangar.

Figure $2/mile for fuel on a long trip, $3/mi on a shorter hop. Jet-A ranges from $2.75/gal to $5/gal typically (with some outlier airports being higher). Fuel is heavy and hurts performance, so it’s rare to tanker significant quantities of “cheap” fuel.

Those figures are roughly right for a legacy Citation with JT15s. Bigger jets might be more. Newer jets might be more fuel efficient (and correspondingly more expensive to buy). A legacy Citation is a 50-150 hour/yr airplane. Fly it much more than that and you'd be better off in a newer Citation with the FJ44s (more expensive engines, much better fuel specifics).