What is the fastest yet cheapest way to send a package Cross-Country?
This is going to vary greatly depending on From and To locations and package size. You should check out Red Roller, which is sort of a “Froogle for Shipping”. In the sidebar there’s a “Compare Rates” widget that gives you competitive rates from different carriers for your specific size package. UPS Critical Express and UPS American Air Freight have relationships with all the airlines. You can also contact almost any airline to inquire about the availability of direct cargo shipping, especially if you can have someone drive to the airport on the other end. It’s like paying an extra suitcase fee without buying a passenger ticket. Godspeed!