Class E Airspace
The controlled airspace that fills the gaps — where its floor sits, and why the minimums change at 10,000 feet.
Key Takeaways
- Class E is controlled airspace that is not Class A, B, C, or D — it fills in almost everywhere else below 18,000 ft MSL.
- Its floor varies: the surface (dashed magenta), 700 ft AGL (shaded magenta), 1,200 ft AGL (shaded blue), or 14,500 ft MSL by default.
- No clearance, radio, or transponder is required to fly VFR in Class E (transponder/ADS-B still apply at or above 10,000 ft MSL).
- Below 10,000 ft MSL the minimums are 3-152; at or above 10,000 ft MSL they jump to 5-111.
- Class E lets IFR traffic descend on instrument approaches, which is exactly why the cloud-clearance buffers matter.
What Is Class Echo?
Class E (“Echo”) is the workhorse of controlled airspace — everything controlled that is not Class A, B, C, or D. It exists to protect IFR aircraft flying instrument approaches and airways, which is why a VFR pilot must respect its cloud-clearance minimums even though no one is talking to ATC.
The trick with Class E is knowing where its floor sits, because that determines when you are in it. A dashed magenta line means Class E starts at the surface; a shaded (fuzzy) magenta line means it starts at 700 ft AGL; a shaded blue line means 1,200 ft AGL; and elsewhere it defaults to 14,500 ft MSL. Above 10,000 ft MSL the weather minimums step up to give faster traffic more room.
Class Echo at a Glance
Class Echo VFR Weather Minimums
3 SM below 10,000 ft MSL · 5 SM at/above 10,000 ft MSL
Below 10,000: 500/1,000/2,000 ("3-152") · At/above 10,000: 1,000/1,000/1 SM ("5-111")
These come from 14 CFR 91.155. See how Class Echo compares to every other class in the full VFR weather minimums table.
See Class Echo on a live chart
FlightKit’s interactive sectional shows Class Echo boundaries, floors, and ceilings on the real chart — and the airspace module pairs the FAA diagram with quizzes so it sticks before your checkride.
The Other Airspace Classes
Frequently Asked Questions
What are the VFR weather minimums for Class E?
Below 10,000 ft MSL, Class E uses "3-152": 3 statute miles visibility and 500 below, 1,000 above, 2,000 horizontal from clouds. At or above 10,000 ft MSL the minimums increase to "5-111": 5 statute miles visibility and 1,000 below, 1,000 above, 1 statute mile horizontal.
Where does Class E airspace start?
It depends on the chart. A dashed magenta boundary means Class E begins at the surface; a shaded magenta line means 700 ft AGL; a shaded blue line means 1,200 ft AGL; and everywhere else it defaults to 14,500 ft MSL. Class E extends up to but not including 18,000 ft MSL, where Class A begins.
Do I need to talk to anyone to fly in Class E?
No. Class E is controlled airspace, but VFR flight requires no clearance, radio, or transponder below 10,000 ft MSL. A transponder and ADS-B Out are still required at or above 10,000 ft MSL (except when at or below 2,500 ft AGL), and within a Mode C veil.
Why does Class E exist if no one controls VFR traffic in it?
Class E protects IFR aircraft. It provides the controlled airspace where instrument approaches, departures, and airways live, so IFR traffic in the clouds is separated by ATC. The VFR cloud-clearance buffers keep you from popping out of a cloud into the path of an aircraft on an approach.