Domestic airlines (Thai Airways International, Bangkok Airways, Air Asia, Orient Thai Airlines and Nok Air ) operate several daily flights between Bangkok and Chiang Mai. A one-way flight takes about one hour. There are also regular domestic flights between Chiang Mai and other major cities in Thailand and international flights to and from some major Asian destinations, e.g. Singapore, Hong Kong and Kuala Lumpur, run by Thai Airways International and other foreign airlines.