Compare the best freeware aircraft add-ons for MSFS, X-Plane, FSX, Prepar3D and FlightGear, with compatibility and installation checks.
The best freeware aircraft add-ons are FlyByWire’s A32NX for Microsoft Flight Simulator, the Zibo 737-800X for X-Plane 12, and well-curated Project Airbus or Project Open Sky packages for FSX. Choose a build made for your exact simulator version; aircraft quality and compatibility matter more than the size of the download.
Which freeware aircraft should I choose for each simulator?
For most simmers, the best choice is a maintained aircraft with native systems, a usable cockpit and clear compatibility information.
| Simulator | Leading freeware choice | Best for | Main caveat |
|---|---|---|---|
| MSFS 2020 and 2024 on PC | A32NX package with custom Airbus systems and EFB | Realistic short- and medium-haul airline operations | Use a build intended for your MSFS version and remove obsolete duplicate installations. |
| X-Plane 12 | Zibo 737-800X | Detailed Boeing procedures and systems | Install the X-Plane 12 build as a separate aircraft; never overwrite the simulator’s default 737. |
| FSX | Complete Project Airbus, Project Open Sky and Boeing 747 packages | Large variety of classic airliners | A model alone is not enough; confirm that the package includes a working panel, sounds and flight dynamics. |
| Prepar3D | Aircraft explicitly approved for the installed P3D generation | Legacy civilian and military freeware | Old FSX models may load, but 32-bit gauges and DLL-based systems often fail in 64-bit P3D versions. |
| FlightGear | Maintained C172P and 777 packages | Open-source general aviation and airliner flying | Development status varies sharply between catalogue aircraft and FlightGear releases. |
| DCS | Community A-4E-C | Free carrier-capable combat flying | Community mods can require an update after the core simulator changes. |
The A32NX is our strongest overall MSFS freeware recommendation because it goes beyond a visual model and replaces major avionics, systems and cockpit functions. For long-haul routes, the freeware A330-900neo package for MSFS offers a useful alternative, although not every free wide-body matches the A32NX’s systems depth.
X-Plane users should start with Zibo’s 737-800X, then consult our X-Plane 12 freeware shortlist and version notes for other aircraft-related additions. For older Microsoft platforms, our FSX aircraft shortlist by flying style covers airliners, utility aircraft, vintage types and business flying.
What makes a freeware aircraft add-on good?
The best freeware aircraft combines credible flight behaviour with a complete cockpit, dependable installation and support for the simulator version you actually use.
- Native compatibility: A package built for MSFS 2020, X-Plane 11 or FSX is not automatically compatible with MSFS 2024, X-Plane 12 or Prepar3D.
- Systems depth: Check whether the flight-management computer, autopilot, electrical system and engine controls are custom, adapted from a default aircraft or merely decorative.
- Complete cockpit: Some downloads provide an excellent exterior model but borrow a generic virtual cockpit. That may suit casual flying, but not procedural practice.
- Flight model quality: Sensible take-off trim, power response, stall behaviour and fuel use matter more than an enormous texture pack.
- Documentation: A clear installation guide, operating notes and dependency list prevent most failures.
- Maintenance: Prefer packages that distinguish releases for different simulator generations. An old aircraft can still be excellent, but only on the platform for which it was designed.
Do freeware aircraft work in every simulator version?
No; aircraft formats, gauges, avionics and flight models are specific to each simulator family and often to a particular generation.
MSFS 2020 and MSFS 2024 can share some packages, but compatibility must be confirmed for each aircraft. X-Plane 11 aircraft may require updates for X-Plane 12’s flight model and avionics. FSX aircraft sometimes appear in Prepar3D, yet an exterior model loading successfully does not prove that its cockpit gauges or systems are compatible.
A livery is not a complete aircraft either. If an archive contains only texture folders and repaint configuration entries, it requires the named base model to be installed first.
Why is my freeware aircraft not showing up?
A freeware aircraft usually disappears from the selection menu because it is installed one folder too deep, belongs to another simulator version or depends on a missing base aircraft.
- Confirm the target simulator. Check the complete product name and generation rather than relying on a vague description such as “Flight Simulator compatible”.
- Extract the archive. Do not run an aircraft directly from a ZIP or other compressed file.
- Find the actual package root. For a manual MSFS package, open nested folders until the folder containing
manifest.jsonandlayout.jsonis visible. - Use the correct content location. MSFS manual packages belong in the active Community folder. X-Plane aircraft need their own folder under
Aircraftwith the.acffile inside. A conventional FSX aircraft should place its folder underSimObjects\Airplanesand containaircraft.cfg. - Check dependencies. Repaints, panel upgrades and model conversions may need a separate base aircraft or shared library.
- Remove duplicate versions. Two copies of the same package can create conflicting identifiers or load the obsolete build. Unless the instructions say otherwise, delete the old version before installing its replacement.
- Restart the simulator. Most simulators scan aircraft and package metadata during start-up rather than immediately after files are copied.
Can I install freeware aircraft on Xbox or PlayStation?
No, not as ordinary downloaded PC packages; Xbox and PlayStation do not expose a Community folder for manually installed aircraft.
Console users can install only content distributed through the simulator’s supported console content system. Microsoft Flight Simulator 2020 remains a PC and Xbox release, while Microsoft Flight Simulator 2024 is also available on PS5 and PS5 Pro. That PlayStation release does not make PC freeware packages installable on the console.
Can freeware aircraft be as good as payware?
The best freeware can equal or surpass commercial aircraft in selected areas, but quality varies much more widely.
A32NX, Zibo 737-800X and the community A-4E-C succeed because they are substantial aircraft projects rather than simple model conversions. For any lesser-known package, judge the native systems, flight model, documentation and version support instead of assuming that detailed screenshots indicate a detailed simulation.