Military aircraft over Ireland

The Irish Air Corps

Most military aircraft you will see over Ireland are Irish. The Air Corps flies from Casement Aerodrome at Baldonnel, south-west of Dublin [3], and its fleet includes:

• Airbus C295. Three aircraft, two for maritime patrol and one for troop transport and logistics; the last arrived in October 2025, completing a €300 million project [2]. The patrol aircraft watch fisheries, pollution and shipping and support search and rescue, over an area the Air Corps puts at 20% of the EU’s fisheries waters [3].
• AW139 helicopters. Six of them, used for troop transport, special forces training, search and rescue and summer firefighting, and for the Emergency Aeromedical Service flown from Athlone [4].
• Pilatus PC-9M. Eight single-engine turboprops in service since 2004, used for pilot training and close air support [1].
• Pilatus PC-12. Four aircraft used for surveillance, government transport, small cargo and air ambulance flights to Britain. The fleet had been grounded for eight weeks by September 2026 over a maintenance scheduling problem, with one aircraft available [5].

Air Corps pilots also fly the Garda Air Support Unit’s helicopters and aeroplane [6], so a “military” crew may be flying a police aircraft.

US military flights through Shannon

Shannon has handled US military traffic since shortly after it opened in 1945 [7]. Its position as Europe’s westernmost airport, and its space for refuelling, make it a useful stop across the Atlantic [7]. Foreign military aircraft need ministerial permission under a 1952 order; a 1959 arrangement lets unarmed US military aircraft carrying only cargo and passengers overfly without notice, while landings require no arms or munitions unless specially exempted [7].

Between 2022 and 2024, 978 US military flights landed at Irish airports, mostly Shannon, and none was refused permission to land [8]. Much of the traffic is not military-looking at all: civilian charter and cargo airlines such as Omni Air International and Atlas Air fly troops and equipment under government contracts [7]. On a tracker they look like any other airliner.

RAF jets

Ireland has no jet interceptors of its own [9]. Since the early 1950s an arrangement with the United Kingdom has allowed RAF jets into Irish airspace to deal with threats, extended after 2001 to hijacked airliners [9]. In 2020 Russian Tu-95 bombers twice entered Irish-controlled airspace and were escorted away by RAF jets [9]. These are rare events, and the aircraft involved seldom advertise themselves.

Why some never show up

Airliners in Europe must broadcast their position over ADS-B, but the rule lets a state aircraft without the equipment fly if its flight plan says so [10]. Military crews can also switch transponders off: the Russian bombers the RAF met off the west coast had theirs disabled [9]. So a military aircraft missing from a tracker is normal. It does not mean something secret is happening, and Skylark does not guess. The map shows what the receivers heard, nothing more. The wider reasons an aircraft can be missing are in what plane is flying over my house.

How to spot them on Skylark

Military aircraft that do broadcast appear on the live map like everything else. Tap an unusual shape to see its callsign and type, or use the board’s filter: typing a type such as C295 or a callsign prefix narrows the list. Skylark’s own alert rules count callsigns beginning IRL, RRR, RCH or NATO as military, along with types only air forces fly over Ireland, such as the C-17, A400M, P-8 and C295. Skylark for iPhone uses the same rules to warn you a few minutes before a military flight passes close enough to see.

For the aircraft themselves, the aircraft library covers the airliner types you will see most, and the field guide explains how receivers pick them up.

For recent observations, browse rare aircraft over Ireland this week. Each entry is a recorded sighting, not a promise that the aircraft is overhead now. If a visible aircraft is missing, check how flight tracker coverage works.