Does anyone know if there is a place I can look, which I doubt, where people donate unused miles/tickets? My sister in law passed away last month. We have her 2 children now. They lived in poverty before and I'd like to take them on a vacation this summer. Trying to do something within driving distance, but for future notice, would there be any places I can find people willing to donate FF tickets (for them)? They could get a donation for it because we've set up an endowment fund for their benefit.

any ideas? thanks