The nearest domestic airport to Dharamshala is the Gaggal Airport also known as the Kangra Airport, which is located at a distance of 15 km from Dharamshala. Daily flights connect the airport to a number of cities in India including the capital. You can book a cab or a taxi to go to Dharamshala from the Gaggal airport which is a mere half an hour journey to reach Dharamshala.
For tourists coming from other countries, you can take a flight to Indira Gandhi International Airport in Delhi. From there, you can either opt for a bus, cab (490 km with a 10-11 hours journey) or take another flight from IGI Airport to Gaggal Airport and reach Dharamshala similarly as above.