It is landing or has just taken off
The most common reason by far. At Dublin, arrivals fly a straight final approach for at least the last 11 km, descending at a precise 3 degrees, which puts them at about 1,800 feet as they join it [1]. The wind is westerly about 70% of the time, so arrivals usually come in from the east over the Irish Sea; when it swings easterly they come in from the west [2]. If you live on the line of either runway, low aircraft are part of normal life.
Departures are held inside noise corridors until they reach 3,000 feet from the south and crosswind runways, or 4,000 feet from the north runway, before air traffic control turns them towards their destination [3]. Our guide to Dublin’s runways and flight paths goes into which way they fly.
How low is allowed
The European rules of the air set the floor for aircraft flying visually. Over a city, town or settlement, or a crowd outdoors, an aircraft must stay at least 1,000 feet (300 m) above the highest obstacle within 600 m. Elsewhere the minimum is 500 feet (150 m) above the ground, water or nearest obstacle [4]. The exceptions matter: the limits do not apply when taking off or landing, or when the competent authority has given permission [4]. That is why an airliner on approach, or a survey aircraft with a permit, can legally be far lower.
Helicopters
Garda. The Garda Air Support Unit is based at Casement Aerodrome, Baldonnel, on the outskirts of Dublin. It flies two EC135 T2 helicopters and a Britten-Norman Defender aeroplane, crewed and maintained by the Irish Air Corps [5]. The aircraft carry daylight and thermal cameras and searchlights, and are sent to threats to life, crime, public disorder, evidence gathering and traffic management [5]. A helicopter holding over one spot at night is often this unit.
Coast Guard. The Irish Coast Guard’s search and rescue helicopters fly from Dublin (Weston Airport), Waterford, Shannon and Sligo. Bristow Ireland took over all four bases with AW189 helicopters, completing the changeover on 1 February 2026 [6]. It runs six AW189s, and two King Air aeroplanes from Shannon [7].
Air ambulance. The Air Corps runs the Emergency Aeromedical Service with an AW139 based at Custume Barracks in Athlone, which has flown more than 4,500 missions [8]. In the south, an HSE-funded helicopter emergency medical service flies from Rathcoole, Co Cork, operated by Gulf Med Aviation since 11 February 2023 [9].
Survey aircraft
For years, the plane that most alarmed people was Tellus. Geological Survey Ireland’s airborne survey used white twin-propeller aircraft with a red tail, a black stripe and the word SURVEY, registered C-GSGF and C-GSGP, flying a grid over the countryside [10]. They flew at 60 m over rural areas, roughly eight times the height of a two-storey house, and 240 m over towns [12], under a permit approved by the Irish Aviation Authority [12]. The survey made its final flight in June 2026 after 16 years and 440,000 km [11], so a low survey aircraft today is not Tellus.
Training flights
Small aircraft practising take-offs, landings and turns are another regular sight, especially near airfields. Weston Airport, between Lucan and Celbridge about 13 km west of Dublin city, is home to the National Flight Centre, a pilot training academy, and has a 924 m runway [13]. Light training aircraft often carry no ADS-B, so they may not appear on any tracker; see what it means when a plane is not on the map.
How to find out which one it was
Open the live map and tap the aircraft. If it is broadcasting, the card gives its callsign, registration and type, which is exactly what you need if you want to ask about it. Skylark draws the track it has flown too, so an approach, an orbit and a survey grid look very different.
How to report low flying
The Irish Aviation Authority welcomes safety reports from the public about aircraft, including low-flying aircraft and helicopters [14]. Reports go through the European occurrence reporting portal at e2.aviationreporting.eu, which puts them straight into the IAA’s occurrence database for an inspector to review; if the portal gives you trouble, the IAA asks you to email osp@iaa.ie [14]. Give the date, time and place, what you saw and, if Skylark showed it, the aircraft’s registration or callsign.
Two other routes exist. Complaints about drones on privacy, security or noise grounds go to An Garda Síochána or the local authority rather than the IAA [14]. Noise from aircraft using Dublin Airport is regulated by the Aircraft Noise Competent Authority, an independent directorate within Fingal County Council set up under the Aircraft Noise (Dublin Airport) Regulation Act 2019 [15].
Name the low one
Tap the aircraft on the live map to get the callsign, registration and type you need.
Sources
Checked against these sources on 29 September 2026. Rules, fleets and operating hours change; the date beside a figure is the date it applied.
- Aircraft movements: arrival to departuredaa, Dublin Airport
- Runway operationsdaa, Dublin Airport
- Flight paths and airspace managementdaa, Dublin Airport
- Commission Implementing Regulation (EU) No 923/2012, SERA.5005 Visual flight ruleslegislation.gov.uk
- The Garda Air Support UnitAn Garda Síochána
- Waterford Coast Guard helicopter base completes national aviation transitionWLR FM
- Irish Coast Guard transition continues: CHC down to one baseHeliHub
- Inside the Irish Air Corps’ operations with the AW139MLeonardo Helicopters
- New State-funded HEMS service to remain based in RathcooleThe Echo
- Don’t be alarmed if you spot this plane flying very low to the ground in Kerry and ClareTheJournal.ie
- Have you seen this plane flying very low to the ground? It was for Ireland’s geophysical surveyTheJournal.ie
- Farmers being warned of low-flying aircraft over Kerry and ClareIrish Farmers Journal
- Weston AirportNational Flight Centre
- Low flying aircraft (including helicopters)Irish Aviation Authority
- Aircraft Noise Competent AuthorityFingal County Council
