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Ireland

Ireland has 6 airports with published traffic data. Dublin, the busiest airport in Ireland, handled 3,491,240 passengers in May 2026, according to Eurostat.

Domestic aviation emitted 26 thousand tonnes of CO₂ in 2024, according to the national inventory submitted to the UNFCCC.

all traffic at the airport

Passengers at reporting airports, by month

Sum over the same 5 airports as the ranking below; periods where those airports report less than 98% of their traffic are left out. Domestic trips count at both ends.

Top 5 · passengers, May 2026

  1. Dublin AirportDUB 3,491,240
  2. Cork International AirportORK 322,699
  3. Shannon AirportSNN 242,590
  4. Ireland West Airport KnockNOC 98,501
  5. Kerry AirportKIR 47,743

Source: Eurostat · all traffic at the airport

Airports ranked

Period and source of each column

One row per airport, one column per measure. Each column is the most recent period with enough of the country's airports reporting; sort by any column.

  • Passengers · May 2026 — the most recent period with enough of the country's airports reporting (5). — all traffic at the airport. Source: Eurostat.
  • Flights (arrivals + departures) · August 2026 — the most recent period with enough of the country's airports reporting (6). — all traffic at the airport. Source: EUROCONTROL.
  • Tonnes of cargo · May 2026 — the most recent period with enough of the country's airports reporting (4). — all traffic at the airport. Source: Eurostat.

#Airport PassengersMay 2026Change vs last yearpassengersFlights (arrivals + departures)August 2026Tonnes of cargoMay 2026
1 Dublin Airport 3,491,240▲ 2.7%25,16617,741
2 Cork International Airport 322,699▼ 2.5%2,6880
3 Shannon Airport 242,590▲ 17.0%2,5421,507
4 Ireland West Airport Knock 98,501▲ 7.2%7081
5 Kerry Airport 47,743▲ 15.1%579–
6 Donegal Airport –164–

Environment

Aviation CO₂ in the national greenhouse gas inventory

Official inventory reported to the UN climate convention (UNFCCC), same IPCC rules for every country: domestic aviation (1.A.3.a) counts in the national total; international aviation (bunker fuel sold for outbound international flights) is a memo item outside it.

In 2024, domestic aviation in Ireland emitted 26 thousand tonnes of CO₂, and fuel sold for international flights another 3,326 thousand tonnes, according to the national inventory submitted to the UNFCCC.

YearDomestic aviation (kt CO₂)International aviation (kt CO₂)
2024263,326
2023233,389
2022223,023
2021201,315
2020131,178
2019183,320
2018173,282
2017173,037

Every reported pollutant and fuel use, 2024

PollutantUnitDomestic aviationInternational aviation
CO₂ (Carbon dioxide)thousand tonnes25.83,326
NOₓ (Nitrogen oxides)thousand tonnes0.1212.6
SOₓ (Sulphur oxides)thousand tonnes0.010.80
CO (Carbon monoxide)thousand tonnes0.063.0
NMVOC (Non-methane volatile organic compounds)thousand tonnes0.010.32
CH₄ (Methane)thousand tonnes0.000.02
N₂O (Nitrous oxide)thousand tonnes0.000.09
Fuel burnedTJ36246,581

Thousand tonnes as published (energy in terajoules). Inventories are revised every year back to 1990. NOₓ, CO, NMVOC and SOₓ are air pollutants reported alongside the greenhouse gases.

UNFCCC — National Inventory Submissions (Common Reporting Tables)

CO₂ from departing flights

CO₂ of flights departing this country, whole flight to destination

In July 2026, flights departing Ireland emitted 370,961 tonnes of CO₂ over their whole journey (16,089 departures, about 23.1 tonnes per departure), according to EUROCONTROL.

The most recent periods19 periods
PeriodTonnes of CO₂ 2025Tonnes of CO₂ 2026Change vs last year
January194,977230,956▲ 18.5%
February182,985210,650▲ 15.1%
March240,751260,523▲ 8.2%
April300,964299,583▼ 0.5%
May336,558350,762▲ 4.2%
June342,450358,861▲ 4.8%
July359,226370,961▲ 3.3%
August357,276––
September343,131––
October327,205–in progress
November252,925––
December260,495––
Year to date (Jan–Jul)1,957,9112,082,296▲ 6.4%

Self-computed: CO₂ ÷ departures, both from EUROCONTROL.

EUROCONTROL — Small Emitters Tool

NOₓ emitted in the national airspace

Emitted inside this country's airspace, overflights included

In December 2024, aircraft emitted 2,497 tonnes of nitrogen oxides (NOₓ) inside the airspace of Ireland, including flights that only crossed it; 28 tonnes of that came from taxiing on the ground, according to EUROCONTROL's Advanced Emissions Model.

The most recent periods24 periods
PeriodTonnes of NOₓ 2023Tonnes of NOₓ 2024Change vs last year
January2,2082,389▲ 8.2%
February2,2762,210▼ 2.9%
March2,6102,653▲ 1.6%
April2,7842,974▲ 6.8%
May3,1823,445▲ 8.3%
June3,2523,255▲ 0.1%
July3,1743,250▲ 2.4%
August3,0323,321▲ 9.5%
September3,1853,339▲ 4.8%
October3,1743,077▼ 3.1%
November2,3822,425▲ 1.8%
December2,4402,497▲ 2.4%
Year to date (Jan–Dec)33,69934,834▲ 3.4%

Converted from kilograms as published. The model series currently ends in December 2024.

EUROCONTROL — Advanced Emissions Model

People exposed to aircraft noise

13,400 people in Ireland were exposed to aircraft noise of 55 dB Lden or more, and 3,600 to 50 dB or more at night, according to the European Environment Agency (2022 reporting round).

Day–evening–night (Lden)
≥ 55 dB		Night (Lnight)
≥ 50 dB
Inside large urban areas13,4003,600
Around major airports, outside urban areas00
Total13,4003,600

EEA — Environmental Noise Directive data (CC BY 4.0)

Airports

6

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