You should be able to find a vga to hdmi somewhere. Just make sure the vga side is the correct gender to fit into your laptop.
USB is not (natively) a video connection. VGA is however, as is HDMI. VGA to HDMI would be the solution I would look for.
The 'correct' device should look like an adapter box. The 'cable' devices I am seeing currently are all the wrong direction for your need.
Also keep in mind that VGA is just capable of transfering video, you will need to provide audio from the laptop in another cable, or plug in earphones directly to the laptop.
The some VGA to HDMI boxes have audio input which would be ideal for you if you want to send audio and video in the hdmi cable to your tv. This would be RCA (red/white), or...