
The airport code IWA refers to Phoenix–Mesa Gateway Airport, located in Mesa, Arizona, United States. The airport is also referred to by the codes AZA (IATA), KIWA (ICAO), and FAA LID: IWA. The aviation community generally uses the FAA code of IWA, while commercial passenger flight organizations use the IATA code of AZA. The airport serves the city of Phoenix and the surrounding area.
| Characteristics | Values |
|---|---|
| Airport Name | Mesa Gateway Airport/ Phoenix-Mesa Gateway Airport |
| Location | Mesa, Arizona, United States |
| City | Phoenix |
| State | Arizona |
| Country | United States |
| FAA Code | IWA |
| IATA Code | AZA |
| ICAO Code | KIWA |
| Geographic Coordinates | Latitude: 33.3078003, Longitude: -111.6549988 |
| Passenger Boardings (2019) | 1,772,678 |
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What You'll Learn

IWA is the airport code for Phoenix–Mesa Gateway Airport
The airport was built in 1941 as Higley Field and was renamed Williams Field in 1942 in honour of First Lieutenant Charles Linton Williams, an Arizona native who served with the 19th Pursuit Squadron and was killed in 1927. In 1948, the US military acquired the field, renaming it Williams Air Base. It became the first jet training base in 1948 and the first site of the Undergraduate Pilot Training program in 1966. The base closed in 1993.
The airport is owned and operated by the Mesa Gateway Airport Authority and serves as a reliever airport for Phoenix Sky Harbor International Airport. It is a base for Allegiant Air, which began scheduled service from Mesa in October 2007. Phoenix-Mesa Gateway Airport reported 1,772,678 passenger boardings in 2019.
The Gateway 2030 plan outlines a four-phase development approach for approximately 700 acres of airport property and supporting city infrastructure. With the completion of phase one, the airport will be able to accommodate 1.5 million enplanements (3 million passengers). Phase three will allow IWA to accommodate 5 million enplanements, and phase four will allow for 10 million enplanements (20 million passengers) annually.
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The airport is located in Mesa, Arizona, US
The airport with the code IWA is located in Mesa, Arizona, US. The airport's full name is Phoenix-Mesa Gateway Airport, and it is situated in southeastern Mesa, approximately 20 miles southeast of Phoenix, in Maricopa County. The airport is classified as a nonhub airport by the FAA and is a reliever airport for Phoenix Sky Harbor International Airport.
Mesa Gateway Airport was built in 1941 as Higley Field and was renamed Williams Field in 1942 in honour of First Lieutenant Charles Linton Williams, an Arizona native who served with the 19th Pursuit Squadron. In 1948, the field was acquired by the US military and renamed Williams Air Base, becoming the first jet training base. The base closed in 1993, and the airport now serves as a reliever airport for general aviation.
The aviation community generally uses the FAA code of IWA, while commercial passenger flight organizations use the IATA code of AZA. The airport's ICAO code is KIWA. The IATA and ICAO codes are unique, three-letter identifiers assigned by the International Air Transport Association and aviation authorities, respectively.
The Gateway 2030 plan outlines a four-phase development approach for the airport and its infrastructure. With the completion of phase one, the airport will be able to accommodate 1.5 million enplanements (3 million passengers). Phase three will focus on privately-owned commercial developments, and phase four will enable the airport to handle 10 million enplanements (20 million passengers) annually.
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Phoenix–Mesa Gateway Airport is classified as a non-hub airport by the FAA
Phoenix–Mesa Gateway Airport, also known as Mesa Gateway Airport, is located in southeastern Mesa, Arizona, approximately 20 miles southeast of Phoenix. The airport is owned and operated by the Mesa Gateway Airport Authority.
The airport is classified as a non-hub airport by the FAA (Federal Aviation Administration). The FAA code for the airport is IWA, while the IATA code is AZA, and the ICAO code is KIWA. These codes are used to uniquely identify the airport, with the IATA code being used by commercial passenger-flight organizations and the FAA code being used by the aviation community.
Phoenix–Mesa Gateway Airport serves as a reliever airport for Phoenix Sky Harbor International Airport. A reliever airport is a general aviation airport that helps to reduce congestion at a large airline airport. Allegiant Air, which began scheduled service from Mesa in October 2007, is based at the airport.
The airport has seen significant development and expansion plans, known as the Gateway 2030 plan. This plan outlines a phased approach to developing approximately 700 acres of airport property and supporting city infrastructure. With the completion of phase one, the airport will be able to accommodate 1.5 million enplanements (3 million passengers). This phase includes the construction of a new terminal with 14 gates capable of handling Group III and IV aircraft, as well as access roads, parking, and taxiways. Phase two will add another pier terminal, more gates, and additional parking spaces. Phase three will focus on privately owned retail, office, and hotel buildings, and phase four will complete the plan, allowing the airport to handle up to 10 million enplanements (20 million passengers) annually.
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The IATA code for the airport is AZA
The airport's other codes include IWA, which is the FAA code generally used by the aviation community, and KIWA, the ICAO code. The airport is owned and operated by the Mesa Gateway Airport Authority and acts as a reliever airport for Phoenix Sky Harbor International Airport.
Mesa Gateway Airport was built in 1941 as Higley Field and was renamed Williams Field in 1942 in honour of First Lieutenant Charles Linton Williams, an Arizona native who served with the 19th Pursuit Squadron. In 1948, the US military acquired the field, renaming it Williams Air Base, and it became the first jet training base.
The airport is currently undergoing a development plan known as Gateway 2030, which will see the construction of a new terminal, access roads, parking, taxiways, and aprons capable of accommodating larger aircraft. The plan is estimated to cost more than $1.4 billion and will be implemented in four phases, with the goal of accommodating up to 20 million passengers annually by its completion.
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The airport's ICAO code is KIWA
The airport with the ICAO code KIWA is Mesa Gateway Airport, also known as Phoenix-Mesa Gateway Airport or Phoenix–Mesa Airport. The airport is located in southeastern Mesa, Arizona, approximately 20 miles southeast of Phoenix in Maricopa County. The airport is owned and operated by the Mesa Gateway Airport Authority and serves as a reliever airport for Phoenix Sky Harbor International Airport.
Mesa Gateway Airport is classified as a non-hub airport by the FAA, which uses the code IWA to refer to the airport. The IATA code for the airport is AZA, which is used by commercial passenger flight organisations. The airport's ICAO code is KIWA.
Mesa Gateway Airport has a variety of amenities available for passengers and is served by Allegiant Air, which began scheduled service from the airport in October 2007. The airport reported 1,772,678 passenger boardings in 2019.
The Gateway 2030 plan outlines a four-phase development approach for approximately 700 acres of airport property and supporting city infrastructure. With the completion of phase one, the airport will be able to accommodate 1.5 million enplanements (3 million passengers). Phase two will add another pier terminal, six gates, parking for 10,500 vehicles, and a 1,000-foot extension. Phase three will focus on privately owned retail, office, and hotel buildings, allowing the airport to accommodate 5 million enplanements. Phase four will complete the 2030 plan, enabling the airport to handle 10 million enplanements (20 million passengers) annually with 60 gates and 21,000 vehicle parking spaces.
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Frequently asked questions
The IWA airport code is AZA, located in Phoenix, Arizona, United States.
IWA is the FAA code for Mesa Gateway Airport, formerly known as Williams Air Base.
Mesa Gateway Airport is a medium to large multi-use airport that serves air carriers, business and general aviation, and transient military aircraft.









































