  We study the evolution of a test scalar field on the background geometry of a
regular loop quantum black hole (LQBH) characterized by two loop quantum
gravity (LQG) correction parameters, namely, the polymeric function and the
minimum area gap. The calculations of quasinormal frequencies in asymptotically
flat spacetime are performed with the help of higher-order WKB expansion and
related Pad\'{e} approximants, the improved asymptotic iteration method (AIM),
and time-domain integration. The effects of free parameters of the theory on
the quasinormal modes are studied and deviations from those of the
Schwarzschild BHs are investigated. We show that the LQG correction parameters
have opposite effects on the quasinormal frequencies and the LQBHs are
dynamically stable.
