Download FlightGear for Free: Official Install Guide

FlightGear is free to download from the official project site. As of October 25, 2026, it lists FlightGear 2024.1.7 as the latest stable release. Download the package for your computer and allow setup to get the matching simulator data if prompted. Those data files are larger than the application installer and include aircraft and scenery.

Choose the right FlightGear download

Open the official FlightGear download page and check the operating-system label before downloading. The current listings are:

Computer	Official package	Compatibility note
Windows	Windows 10/11, 64-bit x86 installer (.exe)	Windows ARM64 is not currently supported by the official package.
macOS	Disk image (.dmg)	Requires macOS 11 or later.
Linux	x86_64 AppImage	Many Linux distributions also offer FlightGear through their package repositories.

Choose a prebuilt package for your operating system; download the source code only if you plan to compile FlightGear. The listed installer size does not include every scenery download, so allow extra disk space for simulator data.

A browser-style window shows a small-aircraft banner above three download cards with Windows, Apple, and Linux symbols. — Conceptual view of the operating-system selection stage. Check the official download page for the current package and compatibility notes.

Download and install FlightGear

Download the stable package. Select Windows, macOS, or Linux on the official page. Skip source-code archives and development builds unless you specifically want to compile or test FlightGear.
Install it. On Windows, open the .exe and follow the installer. On macOS, open the .dmg and drag FlightGear to Applications. On Linux, run the AppImage or install your distribution’s package. If Windows shows a security prompt, confirm the file came from FlightGear’s official site and review the warning before proceeding.
Set up the data files. FlightGear 2024.1 keeps the application and its matching fgdata package separate. Accept the data download when prompted and leave it in a user-writable folder. On Windows, the update guide recommends a location under your user profile rather than Program Files.

If the automatic download fails, follow the official data-package instructions: download the ZIP matching your exact FlightGear version, extract it somewhere permanent, then launch the simulator and use Choose folder to select it.

A generic installer window shows a blue progress bar partway through setup. — Conceptual view of the installation stage; the actual installer and data-download prompts differ by operating system.

Set up a simple first flight

Open the graphical Qt launcher to choose an aircraft and starting location.

Start FlightGear from its desktop icon or Applications folder and wait for the launcher to load.
Choose the Cessna 172P, a light-aircraft option with a beginner tutorial at Hilo International Airport (PHTO).
Select an airport. Keep the default weather and environment settings for your first flight.
Select Fly! and give the aircraft and scenery time to load.

A conceptual flight-simulator launcher shows aircraft and location icons, an airplane preview, environment controls, and a start-flight button. — Conceptual launcher view showing the aircraft and location choices available before a flight; the exact layout can vary.

FlightGear focuses on flight simulation rather than arcade action. A small single-engine plane is a simpler starting point than an airliner. Aircraft start-up procedures vary, so check the aircraft help or bundled manual if the engine does not start. Begin with the default keyboard and mouse controls, then configure a joystick or yoke later if you have one.

A view from a small-aircraft cockpit shows analog flight instruments, a runway centerline, and mountains under a clear sky. — Representative cockpit perspective for a first runway departure; aircraft instruments and scenery vary by model and location.

Scenery, aircraft, and what to expect

FlightGear does not install detailed scenery for the whole world at once. The 2024.1 beginner guide lists Keflavik and Hilo (the Cessna 172P tutorial airport) among the included areas. TerraSync can download scenery for places you visit, so connect to the internet and give it time to load terrain or buildings.

The launcher’s aircraft catalog includes light planes, airliners, helicopters, gliders, and historic aircraft. Detail and compatibility vary across volunteer-maintained models. Start with an aircraft for your release; the official aircraft guide covers add-on installation.

Is FlightGear really free?

Yes. The official FlightGear release is free and open source; no paid activation or subscription is required. Donations are optional. A paid third-party bundle is not necessary to download the simulator, so check what extras or support it actually includes.

If setup does not work

Data folder missing: download the matching version’s data ZIP and select the extracted folder.
Scenery missing: try an included airport and check the internet connection for TerraSync.
Aircraft will not load: choose an aircraft for your release and review its compatibility notes.
Slow performance: lower graphics quality and close other demanding apps.

For current packages and more help, visit the FlightGear download page or its new-user guide and official FAQ.

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