Are there any affordable international schools in Houston?

Hi Peggy, you should have a look at this page, which has information on private and international schools in Houston 

Hi! 

I'm from France too, nice to meet you!  I always recommend the Lycée International de Houston, which is the best school in Houston, Texas. They believe and teach with excellence, rigor, and kindness as their core value stated. 

At the Lycée International de Houston, I found the best school for my son, they give the right development in a  bilingual (by the way, is the only fully bilingual school in the whole state), bicultural environment to the children.

The most valuable thing is the International curriculum because they possess outstanding teachers and staff in general. It's a huge plus they are supported by the French National Education and  American curriculum. Your kids will be happy there, you must see the facilities to be sure this school is your best choice. ;)