Map - Greater Moncton Roméo LeBlanc International Airport (Greater Moncton International Airport)

Greater Moncton Roméo LeBlanc International Airport (GMIA, Aéroport international Roméo-LeBlanc du Grand Moncton ) or Moncton/Greater Moncton Roméo LeBlanc International Airport is located in the city of Dieppe 4 NM east northeast of downtown Moncton, New Brunswick, Canada. Originally named Greater Moncton International Airport, the airport was renamed in 2016, in honour of former Governor General Roméo LeBlanc.

The GMIA handled 674,406 passengers and 122,308 aircraft movements in 2019.

Designated as an international airport by Transport Canada, it is staffed by the Canada Border Services Agency (CBSA). CBSA officers at this airport currently can handle aircraft with up to 300 passengers. Nevertheless, planes as large as the 580 passenger Boeing 747 have been handled.

GMIA is home to the Moncton Flight College, the largest flight college in Canada.

On January 11, 1928, the first scheduled air flight out of the Greater Moncton area took place. This flight was carrying mail and passengers to the Magdalen Islands. Two sites were considered for the first air strip. Leger's Corner was chosen however because of more favourable landing conditions. Part of this land was donated to the city of Moncton by Simon B. LeBlanc of Leger's Corner, a developer, land owner and owner of the LeBlanc general store and post office located on the south corner of the now named streets of Acadie Avenue and Champlain Street.

In 1929, a local private company bought the land at Léger's Corner airstrip and through the years two runways were constructed as well as structures for aircraft maintenance. It was also in 1929 that the Moncton Aero Club was founded, as was the International Airways Flying School. These later became the Moncton Flight College, one of the pre-eminent flight schools in Canada. Also in the same year, the airport expanded its air mail service to include Prince Edward Island and Montreal.

In 1936, Transport Canada and the local government discussed the possibility of the construction of an airport suitable for trans-Canadian routes. The Léger's Corner site was unsuitable for expansion and instead they chose a site in nearby Lakeburn as the new site for the airport. A paved runway and two additional dirt landing strips were constructed.

In March 1940, the Department of National Defence opened a No. 8 Service Flying Training School(SFTF) at the newly developed RCAF Station Moncton under the auspices of the British Commonwealth Air Training Plan. The school trained war pilots for the Commonwealth nations. A new hangar was also constructed at the airport during the war to serve as a repair and maintenance facility.

During the 1940s, civilian air services expanded and became available serving Montreal, Halifax, Charlottetown, Sydney, Saint John, Fredericton and Newfoundland. The hangar of Trans-Canada Airlines (later Air Canada), became the location for the first air terminal. In 1952, a larger hangar was converted into a modern air terminal but it was very shortly thereafter destroyed by fire. In 1953, a replacement air terminal was constructed.

Further expansion in 1964 brought many changes to the airport including an air traffic control tower and a new operations building. In 1976, the air terminal was again expanded.