Jolly Grant Airport, Indian Airlines, Kingfisher and Jet Airways operates daily flights between Dehradun and Delhi. Further, connecting flights are available to some major cities including Mumbai. To reach airport from the city is a bit inconvenient as it is 20 kms from town and there are no direct bus service to reach here. One can avail private taxi service or make own arrangements.
By Train
Dehradun is a major station and a terminus in Uttarakhand. It is connected by rail to Delhi, Mumbai, Varanasi, Allahabad, Kolkata, Gorakhpur, Amritsar, Indore, Ujjain and Chennai.
By Bus
Delux, Volvo, Semi-deluxe and ordinary Uttarakhand State buses depart every hour from ISBT, Kashmere Gate in New Delhi. There is also an overnight deluxe A/C service run by Uttarakhand Tourism. It is a six to seven hour journey from Delhi. However, the bus station is located about 5-6 km from the centre of the town. If you are coming from Delhi side the trains will generally be more convenient.
By Car
Dehradun is in principle a 5 hour drive from Delhi, but unless you leave Delhi very early in the morning, you will encounter traffic that makes the trip significantly longer. In case you do not have a personal car, hiring a taxi will be most convenient to reach Ecole Globale from ISBT, railway station or Airport.