By plane
The nearest international airport is Bangalore airport near Devanahalli 170km from Mysore (http://www.airportsindia....).
Mysore Airport (http://www.airportsindia....) MYQ Mysore Airport, which is nearly 12 kilometers from the city, was inaugurated on May 15, 2010. Being Domestic Airport It is operational now.
Kingfisher operates daily flights from Mysore. There is one stop connecting flights from Mysore to Other key cities like Chennai, Goa, Mumbai, New Delhi, Pune etc.
By bus
Buses run every 5 minutes from Bangalore. There is a choice of airconditioned and ordinary vehicles. During the weekends, these buses can fill up, but most do not allow you to purchase your tickets in advance. However, buses to Mysore board constantly so finding a bus with seats is never a problem. The KSRTC Karnataka State Road Transport Corporation buses are very comfortable, especially the Volvo Luxury buses. A one-way ticket from Bangalore to Mysore costs 250 Indian Rupees. One can get a bus for Mysore from the main city bus stand Majestic or the sattelite bus terminus on Mysore road.
Mysore has two major bus stands. All KSRTC buses arrive and depart from the Central bus stand aka sub-urb bus stand, while local buses use the City bus stand.
By car
Mysore is approximately 140 km from Bangalore, and there is a 4 lane highway 2 lanes in each direction connecting the 2 cities. The traffic is fairly heavy but the drive is extremely comfortable if you discount the unmarked speed bumps that show up at random intervals. Recentlyas of July 15th 2011 there are approximately 25-30 speed bumps which shall make you reach Mysore in 3 and 1/2 hours by car. Some speed bumps are not even marked by zebra crossing or no symbols to indicate the speed bumps. Probably a much easier and more comfortable way to travel to Mysore is by train especially the Shatabdi Express - 2:15hrs. You drive through in SH-17 via Ramnagar-Mandya and takes about 2 hrs to leave Bangalore and 2 more hrs on the highway (http://tildekarthik.blogs...)
You don't really need a car and driver to drive you from Bangalore or other desinations in India, as all the tourist sites are walking distance or a cheap ride by rickshaw. Alternatively if you must have a car and driver while there, it is very easy to arrange once you arrive.