You’ll encounter Class E airspace on nearly every flight during your training—whether you’re practicing slow flight and stalls near your local airport or heading out on a longer cross-country journey. Unlike the clearly defined boundaries of Class B, C, or D airspace, Class E can feel invisible on a sectional chart, which sometimes leaves student pilots scratching their heads. While it’s controlled airspace monitored by ATC, you don’t need clearance to fly in Class E as long as the weather meets basic visual flight rules (VFR).

Because Class E is essentially “everywhere,” knowing its limits is key—especially the floor and ceiling. The top is straightforward: Class E ends at 17,999 feet MSL, where Class A airspace begins, reserved for high-altitude traffic like commercial airliners. Understanding these boundaries early will help you fly confidently and stay on the right side of the rules.

Class E airspace typically doesn’t reach down to the ground. In flat areas (non-mountainous terrain), the lowest part of Class E airspace usually starts 700 feet or 1,200 feet above the ground level (AGL). But how can you know the difference? You can determine this by looking at sectional charts, which provide details about the boundaries of different airspaces.

The answer lies within the faded magenta circle that typically surrounds nontowered airports. In the example above, the floor of Class E is 700′ on the faded side of the border (the airport surface area) and 1,200′ everywhere else. Stay below the floor of Class E airspace and you’ll remain in Class G airspace and take advantage of the less restrictive cloud clearance and visibility minimums.

Speaking of weather requirements, here’s a summary of the minimum cloud clearance and visibility required to operate in Class E airspace:

As with all things in aviation, there are many exceptions to the standard conventions. Here are some examples of Class E floor variations found throughout the US.

In this case, Class E extends to the surface, as identified by the dashed magenta line/box appearing adjacent to the Class D airspace:

In some cases, the surface area for an airport is designated as Class E airspace, which is identified by the dashed magenta line/circle around the airport:

Next, let’s review Class E airspace around federal airways. In this example around Victor 120, Class E airspace starts at 1,200′ AGL inside the blue feathered area and extends all the way to the Class A airspace above. The areas outside of the hard edge of the blue line are Class G airspace from the surface to 14,500′ MSL, and then Class E above that:

For additional airspace review, check out our airspace quiz and see how well you know the entire airspace system.  You may also find this video on Class E airspace classification helpful. And for complete training on the entire National Airspace system plus much more, check out Sporty’s Learn To Fly Pilot Training Course.