AirOcean Aviation, LLC operates Yalesville Heliport (4C3).

Yalesville Heliport is the only public-use Heliport in the State of Connecticut.

It is located 1.3 miles Southeast of Meriden Markham Airport (KMMK).

Coordinates: N41°29.51′ / W072°48.67′ or 41.4918889, -72.8111667, Elevation 65 ft.

CTAF (KMMK): 123.05, ASOS (KMMK): 134.925, Pilot-Controlled Lighting (PCL): 123.50

Click on the Heliport Diagram below to download a PDF version.

Click on the Sectional image to be redirected to SkyVector or find us on

Note: You may interact with the maps (zoom in/out, move) to familiarize yourself with the area and our approach/departure procedures.

4C3 Heliport Diagram

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