St Clair County International Airport (SCIA) is located in Port Huron, Michigan, USA, and is the only international airport in the state of Michigan. It is the main airport serving the St. Clair County area and provides air service for both business and leisure travelers.

SCIA was founded in 1933 and has been in continuous operation ever since. The airport was initially built to serve the needs of local farmers and businesses, but has since grown to offer commercial airline service to passengers throughout Michigan and the surrounding states. The airport has grown significantly over the years and currently serves over one million passengers a year.

The airport was formerly known as St. Clair County Airport, but in 1986 the name was changed to St. Clair County International Airport to reflect its international status. This name was chosen to honor the county’s rich history and its commitment to international trade and commerce.

The airport code for SCIA is PHN, which was determined by the International Air Transport Association (IATA). The code is composed of the first two letters of the airport’s name, “St Clair County”, followed by the first two letters of the airport’s city, “Port Huron”.

SCIA currently serves over 6,000 passengers per day and offers a variety of flights to destinations throughout the United States and Canada. Airlines such as Delta, United, American, Air Canada, and Allegiant Air all serve the airport.

The airport also offers a wide range of amenities, including free Wi-Fi, car rental services, and a full-service restaurant. Additionally, the airport is equipped with a number of shops, including a newsstand, gift shop, and several restaurants.

SCIA is an important part of the Port Huron community and contributes greatly to the local economy. It is a vital connection for the community and provides an important link to the rest of the world.