We demonstrate ultrafast cold-field electron emission from a nanotip with bunch charges exceeding 100,000 electrons, using THz pulses from a laser-induced air plasma. This marks a major enhancement from earlier plasma-driven experiments, where electron emissions were aided with a bias voltage, and used 25 nJ THz pulses with field strengths of 10 kV/cm¹. Our approach, utilizing 1 µJ pulses and field strengths of over 150 kV/cm produced electron energies up to 1 keV, showing good agreement with Fowler-Northeim theory and suggesting emission within a sub-cycle of the THz pulse approximately 100 fs in duration. This places plasma-generated electron emission within reach of other generation methods, which have so far demonstrated bunch charges reaching approximately 10⁶ bunch charges². With further improvements to the plasma generation and collimation to precisely control the spatial and temporal focusing of the THz field, we suggest the capability to generate up to 10⁷ electrons per shot, with energies reaching into the tens of keV.