The best free flight simulator you can download in 2026 is FlightGear. It is the only fully free simulator that covers the whole world, runs on both Windows and Mac, and has no paid tier at all. If you want combat, pick DCS World for realism on a strong Windows PC, or War Thunder for easier dogfighting on almost any computer. If you want to fly in the next sixty seconds without installing anything, open GeoFS in your browser. And if you are thinking of buying a paid sim, the X-Plane 12 demo lets you test it first.
One thing to know up front: Microsoft Flight Simulator is not free, and it has no demo. We cover the cheapest way to try it further down.
This guide is based on official download pages, published system requirements and 2026 reviews, checked in November 2026. Where sources disagreed or a detail could not be confirmed, we say so.
Quick comparison: the best free flight simulators in 2026
| Simulator | Best for | Windows | Mac | What’s free |
|---|---|---|---|---|
| FlightGear | Realistic civil flying | Yes | Yes (native on Apple Silicon) | Everything |
| DCS World | Study-level combat | Yes | No | 2 aircraft, 2 maps |
| War Thunder | Easy-to-start combat | Yes | Yes (Intel build) | All tech-tree aircraft, with a grind |
| GeoFS | Instant flying, no install | Browser | Browser | Core sim, with ads |
| X-Plane 12 demo | Testing before you buy | Yes | Yes (native) | 15-minute sessions, one small area |
| YSFlight | Very old or weak PCs | Yes | Old builds only | Everything |
| Rise of Flight United | WWI dogfights | Yes | No | 3 aircraft |
| Orbiter 2024 | Spaceflight | Yes | No | Everything |
| Google Earth Pro | Casual sightseeing | Yes | Yes | Everything (2 aircraft) |
1. FlightGear: best free flight simulator overall
FlightGear is open-source software built by volunteers, and it is the only free simulator that tries to do what the paid ones do. You get scenery for the entire planet, a serious flight physics engine, and a large library of community-built aircraft. There is no time limit, no subscription and nothing to unlock.
The current version is 2024.1.7, released in August 2026. The installer is small (83 MB on Windows, 69 MB on Mac), but aircraft and scenery download separately, so expect it to grow. It needs 64-bit Windows 10 or 11, or macOS 11 or later.
What’s good
- Completely free, forever, with whole-world scenery
- Runs natively on Apple Silicon Macs as well as Windows and Linux
- Can connect to the VATSIM online air traffic control network
- Early VR support arrived in the 2024.1 series
- Actively maintained, with seven updates between February 2025 and August 2026
What’s not
- Aircraft quality varies a lot, because volunteers build them
- Setup takes more effort than a paid sim
- Graphics trail Microsoft Flight Simulator and X-Plane
- Some Apple Silicon users see rendering glitches; the project’s fix is to lower shader quality or turn off “Atmospheric Light Scattering”
Who should pick it: anyone who wants to learn real procedures, navigation or instrument flying without spending money.
Download it only from flightgear.org. More on why in the safety section below.
2. DCS World: best free combat flight simulator (Windows only)
DCS World is the most realistic combat simulator you can fly for free. The base game costs nothing and includes two aircraft and two maps permanently: the Su-25T ground-attack jet, the TF-51D Mustang (unarmed, but with a fully clickable cockpit that is ideal for learning start-up procedures), plus the Caucasus and Mariana Islands maps. There is no grind and no subscription.
The catch is hardware. The published minimum is 16 GB of RAM, a graphics card with 8 GB of memory and 200 GB of storage. There is no Mac version.
What’s good
- Study-level realism that no other free combat sim matches
- Mission editor and multiplayer included
- Two-week free trials of most paid aircraft through the standalone version, repeatable after six months
What’s not
- Demands a modern gaming PC
- Steep learning curve
- Extra aircraft cost from about $6 to $80 each, and it adds up quickly
Who should pick it: Windows users with a gaming PC who want to learn real military aircraft systems.
3. War Thunder: best free combat sim for beginners and older computers
War Thunder is the opposite of DCS. It runs on a dual-core processor with 4 GB of RAM, it can be flown well with just a mouse, and it has three difficulty levels from arcade to simulator. It is also by far the busiest free flight game, averaging around 52,000 players at once on Steam in October 2026.
Every aircraft in the main tech trees is free to earn. The honest downside is the grind: unlocking higher-tier aircraft takes a long time, and reviews regularly complain about how hard the game pushes premium purchases. Many players describe it as “pay to skip” rather than “pay to win”, but opinions are split.
What’s good
- Runs on modest hardware
- Easy to start with mouse and keyboard
- Huge player base, so matches are always available
- Has an official Mac version
What’s not
- Slow progression unless you pay
- Less realistic than DCS
- The Mac version is built for Intel processors only (see the Mac section)
Who should pick it: anyone who wants air combat tonight without studying a manual, especially on an older PC.
4. GeoFS: best free flight simulator with no download
GeoFS runs in your web browser on real satellite imagery of the whole world. There is nothing to install, which makes it the fastest way to find out whether you enjoy flight simulation at all. It includes real-world weather, navigation aids and joystick support.
It is not as deep as FlightGear. Cockpits are not fully interactive, and it needs an internet connection the whole time. The free version shows ads, and sharper HD imagery is an optional subscription of roughly $10 a year (check the GeoFS site for the current price).
Who should pick it: complete beginners, Chromebook or work-laptop users, and anyone who wants a quick sightseeing flight.
5. X-Plane 12 demo: best way to try a paid sim for free
X-Plane 12 is one of the two leading paid simulators, and it is the only one with a genuine free demo. The demo needs no payment details and runs on Windows, Mac (including Apple Silicon) and Linux.
The limits are real. After 15 minutes the controls stop responding and you have to restart the flight, and you can only fly in one small scenery area. Sources disagree on which area that currently is, so check x-plane.com before you download.
Who should pick it: people deciding whether to spend $59.99 on the full version. Treat the demo as a test of how well your own computer runs it, not as a free sim to live in.
Also worth a look
- YSFlight: a tiny (about 20 MB) freeware sim with 73 aircraft that runs on almost any PC. Its last official build is from 2018, so it is dated, but nothing is lighter.
- Rise of Flight United: a World War I combat sim for Windows with three aircraft free, including career mode and multiplayer.
- Orbiter 2024: a free, open-source spaceflight simulator for Windows with realistic orbital physics.
- Google Earth Pro: has a hidden flight simulator with two aircraft. It is a novelty, and Google says the desktop app will stop being offered for download on 25 June 2027, so grab it soon if you want it.
Is Microsoft Flight Simulator free?
No. Neither Microsoft Flight Simulator 2020 nor 2024 has a free version or a demo. MSFS 2024 Standard costs $69.99.
The cheapest legitimate way to try it on Windows is one month of PC Game Pass at $13.99, which includes the Standard edition. Mac users cannot install it at all, but can stream it through Xbox Cloud Gaming or GeForce NOW if they own it or have Game Pass.
If you see a site offering a “free full download” of Microsoft Flight Simulator, it is not legitimate.
Best free flight simulators for Mac
Mac users have four dependable free options:
- FlightGear (native on Apple Silicon)
- X-Plane 12 demo (native on Apple Silicon)
- GeoFS (in the browser)
- Google Earth Pro (while the download lasts)
War Thunder also has a Mac version, but it comes with a warning. It is built for Intel processors and relies on Apple’s Rosetta 2 translation to run on M-series Macs. Apple is ending Rosetta 2 with macOS 28 in autumn 2027, and as of June 2026 the developer had only said it was “investigating” a native version. If War Thunder is your main game on a Mac, be cautious about upgrading macOS until that is settled.
DCS World, Orbiter and Rise of Flight have no Mac versions. DCS can be made to run through CrossOver with manual fixes, but guides warn that updates and multiplayer can break, so it is not something to rely on.
On performance, older test results for X-Plane 12 showed around 18 to 23 frames per second on a base M1 at low settings, and 30 to 40 on an M1 Pro. Newer chips will do better. For a MacBook Air, plan on 16 GB of memory and low-to-medium settings.
Which free flight simulator should you pick?
| Your situation | Pick this |
|---|---|
| I want the most realistic free civil sim | FlightGear |
| I have a gaming PC and want realistic combat | DCS World |
| I want combat on an older or budget PC | War Thunder |
| I’m on a Mac | FlightGear, plus the X-Plane 12 demo |
| I just want to try flying right now | GeoFS |
| I’m deciding whether to buy a paid sim | X-Plane 12 demo |
| My computer is very old | YSFlight or GeoFS |
Do you need a joystick?
No, not to start. War Thunder and Google Earth are designed for mouse and keyboard, and GeoFS works fine without a stick.
For FlightGear, DCS World and X-Plane, a joystick makes a big difference. You do not need an expensive one. A March 2026 buying guide put the Logitech Extreme 3D Pro at about $40 and the Thrustmaster T.16000M at about $80. Prices move, so check current listings.
Mac users should buy from a shop with easy returns. Guides disagree on whether these budget sticks work properly on macOS, and we found no recent first-hand test that settles it.
How to download free flight simulators safely
The biggest risk with free flight sims is not a virus. It is paying for something that is free.
FlightGear has been repackaged and sold for years under names such as ProFlightSimulator, FlightProSim and VirtualPilot3D. The FlightGear project says these are its own software with the name changed, and that it does not endorse them. If an advert is selling a flight simulator you have never heard of for a one-off fee, search its name alongside “FlightGear” before you pay.
Stick to official sources:
- FlightGear: flightgear.org
- DCS World: Steam, or digitalcombatsimulator.com
- War Thunder: warthunder.com, or Steam
- X-Plane 12 demo: x-plane.com
- GeoFS: geo-fs.com
- Google Earth Pro: google.com/earth
Avoid any site that wraps the installer in its own “download manager”.
Frequently asked questions
What is the best free flight simulator for PC? FlightGear for civil flying, and DCS World for combat if your PC meets its requirements. War Thunder is the better combat choice on older hardware.
What is the best free flight simulator for Mac? FlightGear. It is fully free and runs natively on Apple Silicon. The X-Plane 12 demo is the best free taste of a paid Mac sim.
Is there a free flight simulator like Microsoft Flight Simulator? FlightGear is the closest in scope, with whole-world scenery and realistic flight physics, though its graphics are less polished. GeoFS gives a similar “fly anywhere over satellite imagery” feel in a browser.
Is DCS World really free? Yes. The base game, two aircraft and two maps are free permanently. Additional aircraft and maps are paid.
Is X-Plane 12 free? Only the demo, which limits you to 15-minute sessions in one small area. The full version is $59.99.
Can free flight simulators help with real pilot training? They can help you practise procedures, navigation and instrument scanning at home. They are not certified training devices and do not count toward logged flight hours.
Can I play a free flight simulator without downloading anything? Yes. GeoFS runs entirely in a web browser.
The bottom line
Start with FlightGear if you want a real simulator at no cost on PC or Mac. Add DCS World if you have a gaming PC and want combat depth, or War Thunder if you want quick dogfights. Use GeoFS when you want to fly without installing anything, and the X-Plane 12 demo when you are weighing up a paid sim. Whichever you choose, download it from the official site, and never pay for FlightGear under another name.
Hi, I’m Bruno. I’ve worked in the aviation industry for over 6 years as a B1.1 Licensed Aircraft Maintenance Engineer. This blog is where I share insights on aviation and travel globally.