This study investigates the influence of the velocity ratio on the flow field of a spatially oscillating jet emitted by a fluidic oscillator into a crossflow with zero streamwise pressure gradient. The oscillation plane is perpendicular to the direction of the crossflow. Threedimensional, time-resolved flow fields are acquired by PIV measurements. Phase-averaging is employed for compensating stochastic turbulence and low sampling rates. All velocities are well within the incompressible regime. The Strouhal number is linearly dependent on the velocity ratio for the given oscillator. Therefore, it is not possible to distinguish between effects caused by velocity ratio and Strouhal number. It is found that the only parameters affecting the flow field for the given scenario are the velocity ratio and Strouhal number. Streak volumes reveal the jet trajectory. With increasing velocity ratio, the jet penetrates deeper into the crossflow in both normal and lateral direction. Two dominant streamwise vortices are present in the flow field for low velocity ratios. For high velocity ratios the vortex dynamic changes significantly because the interaction mechanism between jet and crossflow changes. This is suspected to be linked to the change in Strouhal number. With increasing velocity ratio, the position of the vortices changes and the normalized strength of the vortices converges. For velocity ratios larger than 5, two additional vortices are revealed in the flow field. The vortices appear in a bistable manner with little spatial movement. This significant change is likely caused by the jet mimicking an upright solid delta which is indicated by a stationary wake behind the jet. The time-resolved flow field approaches the time-averaged flow field for high Strouhal numbers.