No Fly Zone Map | Data sources and method

Drone Buddy no-fly zone map over the San Francisco Bay Area showing Class B, C, and D airspace polygons, airports, and TFRs

The map answers a simple question before you take off: what restricted airspace is near this pin? It is a planning overlay, not a clearance, not LAANC, and not a substitute for faa.gov/uas or a B4UFLY app when you need authorization.

Want a walkthrough of each layer? Read understanding the no-fly zone map.

Latest update — September 2026

We stopped treating every U.S. towered airport as a round “no-fly” disc. Controlled airspace has a published outline. Class B is a wedding cake: a surface core, then outer rings that often start thousands of feet up. A 400 ft drone can sometimes fly under those shelves. Painting the whole cake as red was the old bug.

FAA Class B / C / D surface polygons from the NASR 28-day cycle dated 3 September 2026. We keep only airspace that starts at the surface (LOWER_CODE = SFC). 724 polygons: 40 Class B, 122 Class C, 562 Class D.
Airport points still come from OurAirports, with closed/abandoned names filtered on rebuild. Heliport circles stay off by default so a city is not a yellow blanket.
TFRs and UAS restrictions still load live when you open the map.

How we draw each layer

Layer	Source	Shape	How we use it
Class B, C, D (U.S.)	FAA NASR Class Airspace shapefiles	Real polygons	Surface only. Outer Class B/C shelves that start at 2,000–4,000 ft MSL are omitted so flyable air stays unpainted.
Airports (worldwide)	OurAirports	Point + optional safety radius	Large, medium, and small aerodromes. Heliports hidden by default. Circles are a caution radius, not the legal FRZ.
National parks	NPS / Natural England / Parks Canada open GIS	Park polygons	U.S., U.K., and Canada park boundaries as published by those agencies.
TFRs / UAS restrictions	FAA UAS data, cached live	Polygons	Fetched when you open the map. Tap a red area for the FAA notice when a URL is attached.

Data sources

FAA NASR Class B, C, D, E shapefiles 28-day National Airspace System refresh — we take surface B/C/D only FAA AIS Class Airspace same class-airspace product via FAA open GIS OurAirports worldwide airport points U.S. National Park Service park boundaries FAA UAS Data Delivery flight restrictions used for TFR overlays UK National Parks Natural England / Defra Canada National Parks Parks Canada open data

Full weather, Kp, and copyright notes live on the Data Sources page.

What this map is not

Not a LAANC USS. We do not issue FAA authorization. For that, use an FAA-listed B4UFLY / LAANC app.
Not a DJI geofence. DJI can still refuse takeoff even when this overlay looks open, and the reverse is also true.
Not a permit for a park, city, or private field. Takeoff and landing are local rules.

No-fly overlays are a reference. Airspace, TFRs, and park rules change. Always confirm official sources before flight. Drone Buddy is not affiliated with the FAA.