Here's a site that sells unused seats on charter jets for cheap when they are repositioning the aircraft. For ex., todays deals include a one way from begas to Van Nuys for tad over $550 and seats four. Split four ways, that's pretty cheap. Catch is it's a last minute type deal.
https://www.jetsuite.com/suitedeal
https://www.jetsuite.com/suitedeal
