Universal Avionics Systems Corporation
Allows you to perform offline GPS FDE predictions for remote/oceanic operations.
Flight Planner is one of major improvement achieved by FSX.
Aerosoft Flight Calculator does all the calculations you need during your flight.
Just Flight Ltd
VLJ Business Jet is an add-on for users of MS Flight Simulator FSX or FS2004.
All your favorite Flight Sim sites are all a click or two away!
Champagne PC Services
Flight Planner 3000 is a program which produces detailed, accurate flight plans.
VFR Flight Planning is an all-in-one VFR flight planning tool.
Central Park Informatica
Super Flight Planner is flight planning software for Microsoft Flight Simulator.
Professional solution for VFR flight planning and in-flight navigation.
Plan-G is a VFR flight planning tool for Microsoft Flight Simulator.
Is a PC-based flight planning software solutions for general aviation pilots.
Rontal Colour Inc.
VFR and IFR (Canada low-level airspace) flight planning software.
SeeYou is a flight planning and analysis tool for glider pilots.
Horizons Aviation Ltd
It is intended for use as part of flight planning.
GoodWay is the best flight-planning tool for X-plane available.
Small application that allows you to perform your VFR and IFR flight planning.