How to Build a Custom Airport for Microsoft Flight Simulator

A custom airport for Microsoft Flight Simulator is built in six main stages: research and reference gathering, 3D modeling, ground and apron layout, texturing and lighting, compiling and testing in the simulator, and certification before release. The whole process usually takes weeks for a small airfield and many months for a major international hub.

Our team at Dotlancing builds airports for Microsoft Flight Simulator, and our work is available on iniBuilds. This guide explains how professional airport development works in practice, so you can decide whether to build one yourself or work with a studio.

What Is a Custom Airport for Microsoft Flight Simulator?

A custom airport for Microsoft Flight Simulator is a hand crafted replacement for the default airport that ships with the sim. Instead of relying on automatically generated buildings and generic layouts, a custom airport recreates the real terminal, hangars, aprons, taxiways, lighting, and surrounding details of an actual location.

The default simulator uses satellite imagery, aerial data, and procedural generation to produce airports around the world. That approach works well for covering the entire planet, but it cannot capture the unique character of a specific airport. Terminal shapes can look soft, signage is often missing, and ground markings may not match reality.

A custom build fixes those gaps. It typically includes:

• Accurate terminal buildings and support structures
• Correct runway, taxiway, and apron markings
• Working jet bridges and ground vehicles
• Custom lighting for day and night operations
• Realistic signage, fences, and vegetation
• Optimized performance so frame rates stay stable

The result is an airport that feels like the real place, which matters to pilots who fly the same routes often and care about immersion.

Why Custom MSFS Airports Matter to Pilots

MSFS airports are where every flight begins and ends, so quality there shapes the whole experience. A pilot may spend hours on a long haul route, but the moments at the gate, on the taxiway, and on final approach are the most visual and the most memorable.

Custom airports also support better procedures. When taxiway layouts, hold short lines, and stand positions match the real charts, pilots who use real world navigation data can follow actual airport procedures instead of guessing.

There is a community side too. Virtual airlines, streamers, and flight sim groups often choose a favorite airport as a home base. A detailed custom airport gives that community a shared place to operate from. For developers and brands, this demand creates a steady market for high quality scenery, which is why professional studios and marketplace partners continue to invest in the space.

Project Airports for MSFS 2020 and MSFS 2024: What to Know

Many developers and fans search for Project Airports MSFS 2024 and Project Airports MSFS 2020 because the two simulator versions are related but not identical. Understanding the differences early saves a lot of rework.

MSFS 2020 introduced the modern scenery development workflow. Developers use the Microsoft Flight Simulator SDK, work in Developer Mode, and build scenery projects that compile into packages. A large library of third party airports was created for this version, and many of them remain popular.

MSFS 2024 builds on that foundation with updated tools, new systems, and expanded features for airports, ground operations, and career style activities. It also brings changes to how some assets, materials, and gameplay related elements are handled.

Practical guidance for a project airport:

1. Decide early which simulator version you are targeting, or whether you need both.
2. Check the current SDK documentation for each version before choosing your pipeline, because tools and requirements get updated over time.
3. Plan asset reuse carefully. Some models and textures carry over, but materials, performance budgets, and feature support may need adjustments.
4. Test in the exact version your customers will use, not only in the one you developed in.

If you plan to release a commercial product, supporting both versions can widen your audience, but it also increases testing time. A studio with experience across both versions can handle this more efficiently than a first time developer.

Step 1: Research and Reference Gathering

Every strong airport begins with research, not modeling. Before opening any 3D software, collect everything you can about the real airport.

Useful sources include:

• Official airport charts and layout diagrams
• Aerial and satellite imagery
• Ground level photographs from many angles
• Architectural drawings, when publicly available
• Videos taken from aircraft, buses, and terminals
• Local pilot and spotter community material

Photos are especially valuable. A single wide shot of a terminal can hide the details that matter, such as window patterns, roof edges, signage fonts, and the colors of painted lines. Aim to document each building from every side, plus details like lights, fences, and ground equipment.

Also gather operational information. Which stands are used by which airlines, which taxiways are one way, and where do aircraft usually hold? These details guide the layout and make the airport feel authentic when pilots operate from it.

Finally, check legal and licensing considerations. Airport logos, brand names, and signage may be protected, so confirm what you can include in a commercial product. Professional studios handle this as part of normal production.

Step 2: Set Up Your MSFS Scenery Development Tools

Once research is complete, prepare your tools. The core of the workflow includes the official SDK, the simulator's Developer Mode, and a 3D modeling application. Most airport developers use Blender along with the plugin tools provided for exporting models into the simulator's format.

A typical setup includes:

• Microsoft Flight Simulator SDK for documentation, samples, and compiling tools
• Developer Mode inside the simulator for the Scenery Editor and debugging tools
• Blender or another 3D application for modeling
• Image editing software for textures and material maps
• Version control or backup tools so large projects are never lost

Create a clean project structure from day one. Separate folders for models, textures, scenery definitions, and compiled packages make long projects much easier to manage. Naming files consistently also helps when multiple artists work on the same airport.

If you are new to scenery development, start with a small airfield. Learning the pipeline on a simple project is far cheaper than discovering mistakes on a large international airport.

Step 3: Model Terminals, Buildings, and Ground Layout

This is the stage most people picture when they think of building a custom airport for Microsoft Flight Simulator. The work divides into two parts: structures and ground layout.

Structures. Modelers recreate the terminal, control tower, hangars, cargo buildings, parking structures, and smaller support buildings. Good modeling balances accuracy with performance. A terminal may need fine detail at close range, but the same detail would be wasted when viewed from kilometers away. That is why developers build multiple levels of detail, so the simulator can swap simpler versions of an object as distance increases.

Ground layout. The airport's flat surfaces are just as important as its buildings. This includes runways, taxiways, aprons, service roads, and painted markings. In the simulator, these elements are defined through ground polygons, line markings, and airport data such as taxi paths, parking spots, and approach lights. Errors here affect gameplay directly, because AI traffic, ATC, and pilot navigation all rely on this data.

Useful modeling habits:

• Keep polygon counts reasonable and reuse objects where possible
• Build modular pieces, such as fences, lamps, and signs, instead of one huge model
• Use accurate real world dimensions, so aircraft fit on stands and taxiways
• Name objects and materials clearly to avoid confusion later

A well modeled airport should look right from the cockpit, from the tarmac, and from a drone style external camera.

Step 4: Texturing, Materials, and Lighting

Models only become convincing after good texturing. Texture work gives concrete its stains, glass its reflections, and painted metal its wear.

Modern simulator materials use physically based rendering. In simple terms, each surface has separate maps that describe its color, roughness, metallic quality, and normal detail. Getting these right makes surfaces react naturally to sunlight, rain, and night lighting.

Key texturing priorities:

• Use real photo references to match building colors and wear patterns
• Keep texture sizes sensible, because oversized textures hurt performance
• Create clean decals for markings, signs, and logos
• Add subtle dirt, tire marks, and cracks on aprons and runways

Lighting deserves special attention. A custom airport must look good in all conditions: bright noon, low evening sun, fog, rain, and full darkness. Night scenes are especially important, since many pilots fly in the evening. Apron floodlights, terminal glow, taxiway edge lights, and runway lighting must all be correctly placed and balanced so they look natural without causing performance drops.

Step 5: Optimize Performance and Test in the Simulator

A beautiful airport that runs at low frame rates will disappoint users. Optimization is not a final polish step. It should happen throughout development.

Common optimization methods include:

• Building levels of detail for every major object
• Merging small objects where it makes sense
• Compressing textures and using appropriate resolutions
• Limiting expensive effects and transparent materials
• Reducing unnecessary geometry that players will never see

Testing should be broad and honest. Fly into the airport in different aircraft, from different directions, at different times of day. Test with weather, with AI traffic, and with other add ons installed. Check that jet bridges align with aircraft doors, parking positions match aircraft sizes, and ground services appear where expected.

Also test on more than one computer. A developer's high end machine can hide performance problems that mid range systems will expose. Beta testers are very valuable here, because they find issues that internal teams overlook.

Keep a bug list and fix problems in order of severity. Frame rate issues, crashes, and incorrect taxiways come first. Small visual issues can follow.

Step 6: Package, Certify, and Publish Your Airport

After testing, the airport must be packaged and prepared for release. For commercial products, this usually means submitting to a marketplace or distribution partner, where the package goes through checks for quality, stability, and compliance with platform requirements.

Preparation typically includes:

• Final compile of the scenery package
• Store assets such as screenshots, trailers, and descriptions
• Documentation for installation, features, and known limitations
• Version numbers and a plan for updates

Publishing is not the end. Simulator updates, user feedback, and new features all lead to patches over time. A good developer treats an airport as a living product and keeps improving it after launch.

Distribution partners also matter. Releasing through an established publisher gives your airport visibility, support infrastructure, and trust with customers. Our work at Dotlancing is available on iniBuilds, one of the recognized names in flight simulator add ons, which helps pilots find and buy the airports we create with confidence.

Build It Yourself or Hire an Airport Development Studio?

Building a custom airport for Microsoft Flight Simulator is rewarding, but it is also demanding. The right choice depends on your goals, time, and budget.

Building it yourself makes sense when:

• You want to learn scenery development as a hobby
• The airport is small or simple
• You have time to learn the tools and fix mistakes
• The project is for personal or community use

Hiring a studio makes sense when:

• You want a commercial quality release
• The airport is large, complex, or highly detailed
• You need both MSFS 2020 and MSFS 2024 support
• You have a deadline or a brand to protect
• You want certification and marketplace readiness handled for you

A professional studio brings a trained team, an established pipeline, and experience with common problems. That usually shortens delivery time and reduces costly rework.

What Dotlancing offers. We provide end to end airport development for Microsoft Flight Simulator. Our services cover:

• Reference research and project planning
• 3D modeling of terminals, hangars, and airside structures
• Ground layout, markings, and airport data setup
• Texturing, materials, and lighting
• Performance optimization and testing
• Packaging and delivery for marketplace release

We have built airports that are available on iniBuilds, and you can see examples of our work on our portfolio page at dotlancing.com. If you have an airport in mind, whether a regional airfield or a major international hub, contact us to discuss scope, timeline, and pricing.

Ready to Build Your Custom Airport for Microsoft Flight Simulator?

Whether you are planning a regional airfield or a major international hub, a professional team can save you months of work and help your airport reach pilots with the quality they expect. Dotlancing builds airports for Microsoft Flight Simulator, and our work is available on iniBuilds.

Explore Our Custom Airports to see what we have built, then get in touch to discuss your next project for MSFS 2020, MSFS 2024, or both.