Unlike most cities, the buses en-route to Alor Setar are air-conditioned. Should you decide to take the bus, you can purchase tickets at the various bus terminals in the major cities of Malaysia. You also have the option to take a train to the city of Alor Setar, courtesy of the Keretapi Tanah Melayu Berhad (KTMB) railway company, which will take you to the Central Business District of the city. You can purchase railway passes directly from the train station or online.
The Sultan Abdul Halim Airport is a state-of-the-art airport located 15 kilometers north from the city of Alor Setar. As of today, the airport only caters to domestic flights courtesy of Malaysia Airlines and AirAsia.
Passenger ferries are provided by Jetty Kuala Kedah and services regular trips to and from Langkawi. However, the jetty is located some 25 kilometers away from Alor Setar so you will need to take a bus or a taxi from the jetty to get to the city.