IS94

Johnson Airport

Johnson Airport (IS94) is a general-aviation airfield serving Sandwich, Illinois. The field lies at 667 ft (203 m) above sea level and has a single runway of 1,800 ft (549 m), grass. Its nearest neighbour is Walnut Creek Airport (49IL), 2 nm WSW.

Johnson Airport is a smaller field, so Alārium does not attribute movements to it directly — but aircraft flying near it appear on the live map like any other, at their real altitude and on their real track.

Open IS94 on the live map →

Location

Elevation
667 ft (203 m)
Coordinates
41.6056, -88.6612
Serving
Sandwich
Region
Illinois
Time zone
America/Chicago

Runways1 · longest 1,800 ft

Length and width to scale · north up

The diagram shows each runway’s orientation and relative length, read from its designator — runway 09 points 90° magnetic. Threshold coordinates are not published for this field, so strips are drawn about its centre rather than where they sit on the ground. It is a diagram, not a chart to navigate by.

RunwayLengthWidthSurfaceLighting
09/271,800 ft549 m50 ftGrass

Nearby airfields

Runway and field data from the OurAirports public-domain dataset. Positions are ADS-B, which covers most but not all aircraft.