An internal algorithm instantly determines flight time so the you can stay on top of things while editing flight details. This is >90% accurate.
Once your flight details are complete, the Rocket button (provided by RocketRoute) calculates best approved route, including SID and STAR and forecast winds.
Prices you see on your screen are always current, so you can keep editing and even simulate scenarios in real time. Add a stop, change airport or aircraft, add a passenger and see what happens.