U.S. Airspace Classes & Classification Guide (A to G) for Drone Pilots

May 12, 2025
U.S. Airspace Classes & Classification Guide (A to G) for Drone Pilots

If you’re flying drones, one of the first things you’ll hear about is airspace classes. But what does that mean, and why should you even care?

At first, it might sound like something only airline pilots or air traffic controllers need to worry about. However, as a drone pilot, understanding airspace is one of the most important aspects of your job.

It tells you where you can fly, what rules apply, and how to stay safe and legal in the sky.

In this comprehensive guide, we’ll break down U.S. airspace classes, from A to G, so you can stop second-guessing your flight zones and start flying like a pro.

Let’s begin with the basics.

What is Airspace Class?

Airspace Classification by FAA

An airspace class is basically the sky getting divided into different zones. Each of these zones has its own set of rules. These zones are called airspace classes, and they tell you where your aircraft or drones can fly, how high you can go, and what rules to follow for communication with ATC.

Just like highways keep cars moving safely, airspace classes help aircraft and drones share the sky without chaos.

Why Does It Matter for Drone Pilots?

Let’s face it. When you’re flying a drone, you’re not the only one in the sky. You’re sharing the air with helicopters, planes, and other drones. That’s why understanding airspace classes is essential to keeping everyone safe.

Let’s say you’re planning to shoot drone footage near a city. If you’re unaware you’re in Class C airspace near a regional airport, you could accidentally interfere with manned aircraft. That’s not just risky, it’s illegal. Flying in restricted airspace without authorization can lead to fines or even criminal charges.

When you understand airspace classes, you gain more freedom. You understand when and where you need permission, how to get it, and how to avoid mistakes.

Equipped with the basic understanding, let’s dive into the two main categories of airspace.

Controlled vs. Uncontrolled Airspace

Controlled vs uncontrolled AIRSPACE (1)

The FAA (Federal Aviation Administration) has divided the U.S. airspace into two main categories: controlled and uncontrolled.

1. Controlled Airspace

In this airspace, manned aircraft are in constant communication with ATC. That means there’s a set of strict rules to keep everyone safe.

Controlled airspace includes Class A, B, C, D, and some parts of Class E.

If you’re flying in any of these areas, you need prior authorization, especially near airports or when you’re flying above certain altitudes.

For most drone pilots operating under Part 107 (the FAA’s rulebook for commercial drone operations), this usually means submitting a request through LAANC (Low Altitude Authorization and Notification Capability).

2. Uncontrolled Airspace

In uncontrolled airspace, you don’t need to talk to ATC or request permission to fly your drone, as long as you follow FAA rules.

Remember, uncontrolled doesn’t mean it isn’t regulated.

Uncontrolled airspace includes Class G, and it’s often where new drone pilots get started. Think of it as your training ground, a wide-open space where you can safely learn and grow your skills.

It’s beginner-friendly because there’s no need for special approvals, and you have more freedom to explore. But, even though it’s called “uncontrolled,” you still need to follow basic FAA rules.

Now that you know the difference between controlled and uncontrolled airspace, let’s zoom in on the six FAA airspace classes you’ll hear about most.

6 Types of FAA Airspace Classifications

The FAA divides U.S. airspace into six main classes: A, B, C, D, E, and G. Each one has a different purpose, altitude range, and level of control. Some areas are tightly controlled with strict rules, while others are more relaxed and open, perfect for new drone pilots.

Imagine U.S. airspace like a layered cake, starting high above and stacking downward. The higher you go, the more controlled things get. The lower you stay, the more likely you are to fly in less-regulated airspace.

Let’s take a closer look at each airspace class one by one:

1. Class A Airspace

Class A Airspace

Class A is the most controlled airspace in the U.S. It begins at 18,000 feet MSL (Mean Sea Level) and extends up to 60,000 feet. This airspace is reserved for high-altitude operations like commercial airline flights, military jets, and long-haul cargo routes.

No matter where you are in the U.S., once you hit 18,000 feet, you’re in Class A.

Every aircraft flying in Class A must follow Instrument Flight Rules (IFR) and stay in constant communication with Air Traffic Control (ATC). This airspace exists nationwide, including over coastal waters up to 12 nautical miles from shore.

Under FAA Part 107, drones are limited to flying below 400 feet AGL (Above Ground Level).

Since Class A starts at 18,000 feet MSL, it’s completely out of range for everyday drone operations. Hence, drone pilots cannot fly in Class A airspace without special FAA authorization.

But even though you won’t fly your drone in Class A airspace, understanding how Class A fits into the bigger picture helps you visualize how the National Airspace System (NAS) works.

2. Class B Airspace

Class B Airspace (1)

Class B airspace surrounds the country’s busiest airports, like LAX, JFK, ORD, and ATL.

It’s designed to manage large volumes of fast-moving aircraft, including commercial jets and cargo planes. Because of the traffic density and complexity, this airspace is tightly controlled by Air Traffic Control (ATC) at all times. This means drone pilots cannot fly here without FAA authorization and LAANC approval.

Class B airspace uses a layered structure that resembles an upside-down wedding cake. Each shelf is designed to manage aircraft at different altitudes and distances from the airport.

The core area typically starts at the surface and extends up to 10,000 feet MSL. The middle shelves begin higher (around 1,500 feet MSL) and stretch outward. The outer shelf starts at 7,000 feet MSL and extends to a 30 NM radius from the airport.

Class B airspace follows VFR weather minimums of 3 statute miles visibility and requires pilots to remain clear of clouds. If you’re flying in an area where Class B starts at the surface, cloud ceilings must be at least 1,000 feet AGL.

There’s also a maximum speed limit of 200 knots below Class B shelves, and within VFR, the speed limit is 250 knots.

3. Class C Airspace

Class C airspace (1)

Class C airspace surrounds medium-sized airports that handle a mix of commercial, private, and charter flights. These airports are busy but not as congested as major hubs like those in Class B.

This airspace is controlled by Air Traffic Control (ATC) and requires all manned aircraft to maintain two-way communication. As a drone pilot, you won’t speak to ATC directly, but you must get FAA authorization before flying in Class C.

This airspace has a two-layer structure shaped like a cylinder:

  • The inner core extends 5 nautical miles from the airport and starts at the surface, reaching up to 4,000 feet MSL.
  • The outer shelf extends from 1,200 feet to 4,000 feet MSL, reaching out to 10 nautical miles from the airport.

Each Class C airspace layout follows this general shape but can be slightly modified based on local traffic needs.

On sectional charts, Class C airspace appears as solid magenta rings. These rings represent the inner core and the outer shelf.

Inside the rings, you’ll see altitude blocks marked like this: 40/12. That means the airspace ceiling is 4,000 feet AGL, and the floor starts at 1,200 feet AGL. If it says SFC instead of a number, the floor starts at the surface.

In Class C airspace, you must follow Visual Flight Rules (VFR):

  • Minimum visibility: 3 statute miles
  • Cloud clearance: Stay clear of clouds. There is no set distance, but your drone must remain well-separated.

Drone pilots flying commercially must hold a Part 107 Remote Pilot Certificate. Recreational flyers don’t need any certification but must follow FAA rules and get an authorization before entering Class C airspace.

To fly a drone in Class C airspace, you must get FAA authorization. If LAANC is available in the area, you can request approval instantly through apps like Aloft or AirMap. If not, you’ll need to submit a manual request through the FAA DroneZone, which takes longer.

4. Class D Airspace

Class D airspace (2)

Class D airspace surrounds smaller towered airports that handle a mix of general aviation, commercial, and cargo aircraft traffic. It’s a controlled zone managed by ATC, designed to ensure safe takeoffs and landings at moderately busy airports.

Class D airspace usually forms a cylinder around the airport, extending from the surface up to 2,500 feet AGL and reaching out 4 to 5 nautical miles horizontally. The actual dimensions can vary depending on the terrain, traffic volume, and the specific airport’s layout.

Unlike Class B and C, Class D has a simpler structure, typically a single tier starting at the surface.

Class D airspace is only active when the control tower is operational. If the tower closes, the airspace usually reverts to Class E or Class G, depending on FAA designation.

On sectional charts, Class D airspace is marked with a blue dashed circle around the airport. Inside the circle, you’ll see altitude notations in brackets, which tell you how high the airspace goes. For example, [25] means it extends to 2,500 feet AGL.

To fly a drone in Class D airspace, you’ll need to get prior FAA approval through LANC. Plus, drone pilots flying in Class D must meet Visual Flight Rules (VFR) conditions:

  • Visibility: At least 3 statute miles
  • Cloud Clearance: Stay at least 500 feet below, 1,000 feet above, and 2,000 feet horizontally from clouds.

5. Class E Airspace

Class E airspace

Class E airspace covers a huge portion of the U.S. sky and serves as the bridge between controlled and uncontrolled airspace.

You’ll encounter it almost everywhere, especially above rural areas, between busy airports, and along airways used by manned aircraft.

For drone pilots, it’s one of the most important airspace classes to understand because of its varying boundaries and visibility rules.

Class E airspace doesn’t follow a one-size-fits-all structure. Its lower limit can start at the surface, 700 feet AGL, or 1,200 feet AGL, depending on the location. Its upper limit typically extends to 18,000 feet MSL, where Class A airspace begins. In some special use cases, it resumes above 60,000 feet (FL600) for high-altitude operations.

There are five main types of Class E airspace that drone pilots should recognize:

  1. E2: Surface Area: Begins at ground level around airports without control towers. This is the only Class E type that requires FAA authorization to fly your drone. (Add this image)
  2. E3: Transition Areas: Starts at 700 or 1,200 feet AGL around airports and helps aircraft climb or descend in controlled airspace. (Add this image)
  3. E4: Extensions to Surface Areas: Adds controlled space near Class D or C airports without expanding those airspace boundaries.
  4. En Route Class E: Fills in gaps at cruising altitudes for long-distance IFR flights, and it’s rarely relevant to drone pilots.
  5. High Altitude Class E (Above FL600): Begins at 60,000 feet and higher and is used for space operations, military flights, or testing.

Sectional charts show Class E in different ways based on its type:

  • Thick shaded magenta band = Class E starting at 700 feet AGL
  • Thick shaded blue band = Class E starting at 1,200 feet AGL
  • Dashed magenta lines = Surface Class E (E2) starting at the ground
  • En route Class E or FL600 zones aren’t shown with boundaries, since they extend across large corridors

To fly a drone in Class E airspace, you first need to know when FAA authorization is required. If you plan to fly in surface-level Class E (known as E2), you must get approval through LAANC or the FAA DroneZone.

However, you don’t need authorization for most other Class E areas, like transition zones (E3), extensions (E4), or en route corridors, as long as you stay below 400 feet AGL.

You must also follow Visual Flight Rules (VFR). If you’re flying below 10,000 feet MSL, keep at least 3 statute miles of visibility, and stay 500 feet below, 1,000 feet above, and 2,000 feet horizontally from any clouds.

If you’re ever operating at or above 10,000 feet MSL, which is rare for drones, you’ll need 5 statute miles of visibility and a separation of 1,000 feet vertically and 1 statute mile horizontally from clouds.

6. Class G Airspace

Class G Airspace

Class G airspace is the only uncontrolled airspace in the U.S., and it’s where drone pilots enjoy the most freedom. You don’t need FAA authorization or LAANC approval to fly here.

No ATC is managing the traffic, no radar coverage, and no flight clearance is required. But that doesn’t mean you can just wander in the skies without any rules.

Class G airspace fills in the gaps where controlled airspace doesn’t exist. You’ll mostly find it at lower altitudes near the ground, especially in rural areas, forests, farmland, mountains, and along coastlines.

Even though ATC doesn’t oversee Class G, you must still follow FAA Part 107 rules, fly at or below 400 feet AGL, and keep your drone in visual line of sight (VLOS) at all times.

You must also meet weather minimums to fly safely. During daytime operations below 1,200 feet AGL, maintain at least 3 statute miles of visibility, and stay 500 feet below and 2,000 feet horizontally from clouds.

If you’re flying above 1,200 feet AGL or at/above 10,000 feet MSL, which is uncommon for drones, the rules are stricter, 5 miles visibility, and you must keep at least 1,000 feet vertically and 1 mile horizontally from clouds.

You won’t see Class G airspace marked directly on sectional charts, but you can identify it by what’s not there. If an area has no shaded rings or controlled markings, it’s Class G by default.

You can also use apps like SkyVector, B4UFLY, AirMap, or Aloft to confirm you’re flying in Class G before takeoff.

Now that you know what each airspace class looks like, let’s talk about how you can fly drones in them.

How to Fly Drones in Different Types of Airspace Classes

How to Fly Drones in Different Types of Airspaces

Before you launch your drone, you need to know what kind of airspace you’re flying in.
Controlled or uncontrolled? Restricted or open?

Getting this wrong could land you in serious trouble or worse, endanger manned aircraft. Here’s how to check your airspace in five easy steps:

Step 1: Use an FAA-Approved Airspace App

Start by opening an airspace awareness app. Use tools like Aloft, AirMap, or B4UFLY. These apps show your location on a map and highlight which airspace classes apply where you plan to fly.

If you’re flying near a city or airport, you’re likely in controlled airspace. These zones require FAA authorization before you fly.

If you’re out in a rural area, on farmland, or in the wilderness, and the app shows no controlled airspace, you’re probably in Class G, where you can fly without approval.

Step 2: Check for Special Airspace Zones

Look for Temporary Flight Restrictions (TFRs), prohibited areas, military operations areas (MOAs), or national parks. These zones may override normal airspace rules, even in Class G, and may prohibit drone flights entirely.

The FAA B4UFLY app or the FAA TFR Map will alert you to any active restrictions in your area.

Step 3: Identify the Airspace Class

Each airspace class has unique flying rules:

Class What to Know
Class A Starts at 18,000 ft MSL. No drone flights allowed.
Class B Handles the busiest airports. FAA approval is required via LAANC or DroneZone.
Class C Handles medium traffic airports. FAA approval required.
Class D Handles small towered airports. FAA approval required.
Class E (Surface) Controlled from the surface. FAA approval required.
Class E (700/1200 ft AGL) No approval needed if staying under 400 feet.
Class G Uncontrolled. No FAA approval needed, but follow Part 107 rules.

 

Use your airspace mapping app to identify which class you’re in and find out if you need FAA authorization to fly.

Step 4: Submit Authorization (If Needed)

If you’re in controlled airspace and LAANC is available, request instant FAA approval through your app. Just enter your flight details—location, altitude, and time—and submit.

If LAANC isn’t available, go to the FAA DroneZone and file a manual authorization request. These can take days or weeks to process, so apply early.

Step 5: Confirm and Log Your Airspace Status

Once you confirm you’re in a specific airspace or receive FAA authorization, record your documents. Keep screenshots of your airspace status or LAANC approval handy in case you’re asked for proof during your flight.

Conclusion

Now that you’ve made it through all six classes of U.S. airspace, you’ve taken a major step toward becoming a smarter, safer drone pilot.

Whether you’re flying for fun, filming real estate, or launching a drone business, knowing how to read sectional charts, follow VFR rules, and request FAA authorization gives you more confidence to fly your drone.

But learning the rules is just the beginning.

If you’re truly passionate about becoming a confident, licensed drone pilot, it’s time to take the next step with Drone U’s Drone Pilot Starter Kit Program.

Frequently Asked Questions

1. Is there a drone airspace map I can download?

Yes, you can download apps like SkyVector, B4UFLY, Aloft, or AirMap to check airspace. These apps show flight zones, real-time restrictions, and sectional charts.

2. Do I need to check the airspace for recreational flights?

Yes, always check the airspace before flying, even for fun. You must follow the same airspace rules as commercial pilots.

3. Can I fly my drone in Class C airspace without approval?

No, you need FAA authorization to fly in Class C airspace. Use LAANC or DroneZone to request it before you fly.

4. What is the maximum altitude I can fly in Class G airspace?

You can fly up to 400 feet AGL. If you’re near a structure, you can fly up to 400 feet above it.

5. What’s the difference between LAANC and ATC authorization?

LAANC and ATC authorization are two ways to get permission to fly a drone in controlled airspace.

LAANC is a fast, automated system that lets you get approval through an app in a few seconds. It’s great for most routine flights under 400 feet near airports. While ATC authorization takes longer and is used when LAANC isn’t available or when you need special permission. With ATC, you usually have to work directly with the FAA or air traffic control.

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Author

Paul Aitken - Drone U

Paul Aitken

Co-Founder and CEO

Paul Aitken is a Certified Part 107 drone pilot and a Certified Pix4D Trainer. He is a pioneer in drone training and co-founder of Drone U. He created the industry’s first Part 107 Study Guide and co-authored Livin’ the Drone Life.

Paul is passionate about helping students fly drones safely and effectively. With over a decade of experience, he has led complex UAS projects for federal agencies and Fortune 500 clients such as Netflix, NBC, the NTSB, and the New York Power Authority.