School Bus from Rastanura to Dhahran British Grammar School

Yes, there is a bus.
School starts at 8, finishes at 2.30.
Google maps will give an approx journey time.

Just be aware that you are looking at approximately a 1 hour journey each way, 5 days a week for your children. It will make for them a long day.

The Aramco schools claim to be in the top 5% of US curriculum schools worldwide (my daughter did only year 9 before transitioning to IBGCSE and then IB diploma in the UK, but we had no complaints about the school). The downside is that they do not progress beyond grade 9, at which point most children either go to the private Dhahran/khobar schools or shoot off to boarding school to finish their education.