The city of Toulouse is easily accessible by air, road and rail.
This Google Map shows how to get to the school from Toulouse Blagnac airport.
The International School of Toulouse is about 15km from Toulouse city center. A one-way journey using Uber or similar costs about 20 Euros and attendees often share a car to minimise costs.
You are strongly recommended to shop around using TripAdvisor, Airbnb and similar websites to find something that caters to your exact tastes and budget.