Im 15 trying to fly to mexico without parents permission?

heres da story well my bf is going to move to mexico nd he wants to take me with him so he asked me if i wanted to go wit him and i said yes so now he is gong to buy my ticket but i know my parents will not let me so i wanna know if he can buy my ticket without my parents knowing... i know alot of people are gonna tell to stay with my parents but trust me life is horrible with them :( but my bf makes me really happy