The Thai Government is considering the expansion of the Chiang Mai airport to meet future passenger growth.
The expansion would include a new terminal and aircraft parking bays.
A group led by Thai Ministry of Transport permanent secretary Soithip Trisuddhi is working on a plan to decide whether the airport will require an expansion.
Built in 1921, Chiang Mai airport is the fourth busiest airport in Thailand and is already operating at its full capacity.
The terminal currently handles six million domestic passengers and two million foreign passengers a year.
If executed, the expansion project will increase the airport's capacity to accommodate four million additional passengers.
Chiang Mai airport director Gp Capt Wisut told the Bangkok Post that the construction of a new terminal was necessary for accommodating the future increase in the number of passengers.
The government needs to consider increasing the capacity of the car park to 2,000 vehicles from the current 800, Wisut added.
Airports of Thailand's (AoT) regional airports' senior executive vice-president, Samai Chantorn had recently said the company is planning to expand the airport's capacity by 2016.
Currently, seven airlines operate from the airport flying 14 flights on domestic routes and 20 international airlines operating to 18 overseas destinations.
The airport currently operates around 191 flights every day.