Well, Combine uses "delayed real time", meaning, no matter how upgraded your capital/freighter-fighter piloting skill is and no matter how modified your hyperspace speed is, you'll still need time.
My suggestion is to try and play around with Nav Comp. Pick two locations and see how long it would take you to cross the distance with various skill and piloting combos.
The hyper stats of your ship will make the biggest difference. A hyper 2 ship will be twice as fast as a hyper 1 ship, while a hyper 8 ship will be 4x faster than a hyper 2 ship.
As Goorin said, try playing around with the nav comp. Fastest ships you're likely to fly will be Hyper 7.