What age should you be allowed to travel with ur boyfriend?

The reason I’m asking this is because I’m 18 and moving out in August. However, in July my boyfriend wanted to take me on a road trip across the country to Alberta (we live in Canada). I need to ask my parents if I’m allowed but I’m wondering if im still too young to be travelling with my boyfriend? I also wanna know what age is a good age to be allowed sleeping over and/or travelling with your boyfriend