By wireless are you including cellular? Technically wireless and cellular are not the same thing. If you have a cell phone that is being used as a hotspot, then the phone/hotspot converts the cellular signal into a wireless signal.
If you just mean to avoid a wireless signal from a hotspot, then there are two ways that I know of.
1) You can use either a USB cable from your phone to a laptop
2) You can get an iPad which can receive cellular signals. This would allow your iPad to directly connect to the internet using only a cellular signal.