The airport is mainly used by small fixed-wing aircraft, helicopters and microlights. Several companies based at the airport offer flight training. North Wales Flight Academy offers fixed-wing training for the issue of a PPL (A) and other fixed-wing qualifications. Microlight traffic forms a considerable part of the local aerodrome traffic and flight training is provided by The Microlight School. Helicopter training is also undertaken at the airport by Geo Helicopters. It is also possible to have pleasure flights and charters from the airport. There is also a helicopter simulator located inside the Caernarfon Airworld Aviation Museum.
During the 2000s, the airport underwent significant re-development and expansion. At the aerodrome, there is a large café, a maintenance and storage hangar, and a visitor centre and shop which are part of the Aviation Museum at the site.
The airfield opened in July 1941 as a RAF Flying Training Command airfield for training and closed for flying in June 1945.[7] It was built with three runways,[8] all 50 yards (46 m) wide, and organised into a triangle: 27/09 1,100 yards (1,006 m), 21/03 1,000 yards (914 m) and 14/32 1,000 yards (914 m).[9] It had two T1 hangars, a single Bellman hangar and six blister hangars along the northern perimeter track. The technical, administration and hospital areas were on the south side of the runways,[8] along with the air traffic control tower and the watch office.[9]
RAF Flying Training Command
No. 9 Air Gunners School RAF formed in July 1941 at RAF Llandwrog. Almost twelve months later the school disbanded in June 1942.[10] The unit operated the Armstrong Whitworth Whitley bomber aircraft for turret training and the Westland Lysander army co-operation and liaison aircraft for target towing, alongside the Fairey Battle light bomber, and the twin-engined, multi-role Avro Anson aircraft from Llandwrog.[11] No. 9 Air Observers School RAF (9 AOS) moved its night-flying course, ‘D’ flight,[12] formed of six Avro Anson aircraft, to RAF Llandwrog from RAF Penrhos, arriving as a lodger unit in January 1942. 9 AOS was later redesignated as No. 9 (Observer) Advanced Flying Unit ((O)AFU), in May 1942.[13] No.9 (O)AFU continued observer training at RAF Llandwrog until disbandment in June 1945.[7]