Chiang Mai International Airport is an international airport serving Chiang Mai, the capital city of Chiang Mai Province in Thailand. It is a major gateway to Northern Thailand, and currently the fourth busiest airport in the country.
The airport was established in 1921 as Suthep Airport.
As a result of the temporary closure of Suvarnabhumi Airport in 2008 due to the protests, Chiang Mai became the alternative stop-over for China Airlines' Taipei-Europe flights and for Swiss International Airlines' Singapore-Zurich flights in the interim. On 24 January 2011, the airport became a secondary hub for Thai AirAsia.
In 2013, 19 airlines operated at CNX, serving more than 5.3 million passengers, 43,000 flights and 18,000 tonnes of cargo.
Upgrades in 2014 included expanding the apron for larger planes, extending operating hours to 24/7 (effective April 2014), and enlarging the international arrival hall and domestic departure hall.
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