A direct current plasma microjet is generated from a microhollow cathode discharge device in air with helium and oxygen (2%) as working gas. With the increase of the gas flow rate, a laminar-to-turbulent transition was found at a flow rate between 2.5 and 3.0 slm. The corresponding critical Reynolds number is calculated to be between 639 and 768. A stable bifurcation of the jet tip is observed with a transition flow when a nozzle with a 400- <formula formulatype="inline" xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink"><tex Notation="TeX">$\mu\hbox{m}$</tex></formula> diameter opening is used.