The nearest airport is "Jolly Grant" which is 25 kms from the city centre, located on the outskirts of the city. Indian Airlines and some other private flight operators offer services between Delhi and Dehradun. From the airport one can reach the city centre either by taxi or by bus.
Dehradun is well connected by roads passing through Hindon River Bridge, Modinagar, Meerut, Muzaffarnagar and Roorkee. This is the Grand Trunk Road which takes only about 5-6 hours from Delhi to reach Dehradun (235 kms). There are regular comfort bus services from Delhi. There are deluxe, semi-deluxe and ordinary buses also available to/from Rishikesh, Haridwar, Delhi, Jaipur, Shimla, and Allahabad from/to Dehradun. One can also hire a taxi to reach the destination.
Dehradun is a major railhead of the northern railway and is connected with trains from major parts of the country. Shatabdi Express that runs between Delhi and Dehradun is the best option to choose.