International airports in Ireland

So you’re planning a trip to Ireland. You’ve got the itinerary buzzing around in your head, maybe a road trip along the Wild Atlantic Way, a few nights in Dublin, or a pilgrimage to the Cliffs of Moher. But before any of that happens, you need to figure out one thing: which airport do you fly into?

It’s a more interesting question than it sounds. Ireland has five major international airports and several regional ones spread across both the Republic of Ireland and Northern Ireland. Choosing the right one can save you hours of driving and make the difference between a relaxed arrival and a bleary-eyed slog across the country.

Here’s the quick answer: the main airports in Ireland are Dublin, Cork, Shannon, Ireland West (Knock), and Belfast International, with smaller regional airports in Kerry, Donegal, Connemara, and City of Derry. Between them, they cover pretty much every corner of the island.

Let’s break each one down so you know exactly what you’re walking into.

The major international airports in Ireland

Dublin Airport (DUB)

If you’re flying to Ireland for the first time, chances are you’re landing at Dublin Airport. It’s the island’s largest and busiest airport, handling around 32 million passengers a year and connecting Ireland to destinations across Europe, North America, the Middle East, and beyond.

Dublin has two terminals. Terminal 1 is the older of the two and handles most European and short-haul flights, including the majority of Ryanair’s operations. Terminal 2 is newer and shinier, and it’s where you’ll find Aer Lingus, American Airlines, Delta, United, and several other transatlantic carriers.

One thing that genuinely surprised me the first time I flew through Dublin: it has US Customs and Border Protection preclearance. That means if you’re flying to the United States from Dublin, you clear American immigration before you board. You land in the US as a domestic arrival. It’s a rare and genuinely useful perk, and it’s one of the main reasons transatlantic travellers often prefer Dublin over other European hubs.

The airport is about 10 kilometres north of the city centre. You can get there by Airlink bus, taxi, or the newer BusConnects services. There’s no direct rail link yet, though one has been discussed for years and is slowly inching toward reality.

Good for: first-time visitors, transatlantic flights, anyone staying in Dublin or the east coast.

Cork Cork Airport (ORK)

Cork Airport is Ireland’s second busiest, and it punches well above its weight for a regional airport. It connects to dozens of European cities, including London, Amsterdam, Paris, Barcelona, and Lisbon, with strong seasonal offerings that expand considerably in summer.

If you’re planning to explore the south of Ireland, Cork is the obvious choice. You’re already in the heart of County Cork, which puts you within easy reach of Kinsale, West Cork, the Beara Peninsula, and the Ring of Kerry.

I spent a week based in Cork city a couple of summers ago, and flying into Cork Airport rather than Dublin saved me roughly three hours of driving each way. The airport is compact and easy to navigate, and you’re in the city centre in about 20 minutes by taxi or bus.

Cork doesn’t have the transatlantic connections that Dublin does, but Aer Lingus does operate seasonal direct flights to New York and Boston, which is worth checking if you’re coming from North America and the dates align.

Good for: exploring the southwest, visiting Cork city, and shorter European trips.

Shannon Airport (SNN)

Shannon has a fascinating history. It was once a vital refuelling stop for transatlantic flights in the era of less fuel-efficient aircraft, which is how a small county in the west of Ireland ended up with one of the most well-established transatlantic airports in Europe.

Today, Shannon serves as a major hub for flights to the US and Canada, with Aer Lingus and United Airlines among the carriers operating routes. Like Dublin, Shannon also has US Customs preclearance, which is a significant advantage.

The airport sits in County Clare, which positions it perfectly for the west of Ireland. You’re close to the Cliffs of Moher, the Burren, Galway city, and the start of the Wild Atlantic Way. If your itinerary is focused on the west rather than the east, Shannon is worth serious consideration.

One practical note: Shannon is a notably calm and uncrowded airport compared to Dublin. If you’ve ever navigated Dublin at 6 am during peak summer season, you’ll understand why that’s a meaningful selling point.

Good for: the west of Ireland, transatlantic arrivals, US preclearance, and anyone who prefers a less hectic airport experience.

4. Ireland West Airport Knock (NOC)

Ireland West Airport Knock, to give it its full name, is the kind of airport that doesn’t look impressive on paper until you realise where it sits. Located in County Mayo, it’s smack in the middle of Connacht, the western province that most visitors rush past on the way to Galway.

The airport was famously built in the 1980s through the determination of a local priest, Monsignor James Horan, who believed the west of Ireland deserved its own international gateway. Against significant scepticism, he made it happen. The full story is worth a Google if you enjoy unlikely infrastructure triumphs.

Today, Knock connects to a solid range of UK and European destinations, including London Stansted, Liverpool, Manchester, and various Spanish and Portuguese cities during peak season. It’s particularly useful if you’re visiting Mayo, Sligo, or Roscommon, areas that are often overlooked and genuinely beautiful.

Good for: County Mayo and the northwest, avoiding the drive across the country, travellers visiting Knock itself (a major Catholic pilgrimage site).

Airports in Northern Ireland

Belfast International Airport (BFS)

Belfast International is the largest airport on the island of Northern Ireland, located about 30 kilometres northwest of Belfast city centre near Aldergrove. It handles a wide range of European routes and has connections to transatlantic destinations.

Ryanair, easyJet, Jet2, and TUI are among the carriers operating here. If you’re visiting Belfast, the Giant’s Causeway, the Causeway Coastal Route, or the Glens of Antrim, Belfast International is your most likely entry point.

George Best Belfast City Airport (BHD)

Smaller and more central, Belfast City Airport sits right next to Belfast Lough, just a few kilometres from the city centre. It mainly serves UK domestic routes and a handful of European destinations, making it ideal if you’re flying in from London or other UK cities.

The location is a genuine advantage. You can be in central Belfast in under 15 minutes, which is a treat compared to the longer transfers at most international airports.

City of Derry Airport (LDY)

Derry (or Londonderry, depending on your preference) has its own airport, though it operates on a smaller scale than Belfast. It connects to a limited number of UK destinations and has been an important link for the northwest of Ireland, serving both Northern Ireland and the nearby counties of the Republic, particularly Donegal.

The regional airports in Ireland

1. Kerry Airport (KIR)

Located near Farranfore in County Kerry, this small airport is a lifeline for one of Ireland’s most visited tourism regions. Kerry Airport connects to Dublin, London, and a handful of European destinations, and it saves visitors hours of driving if they’re heading straight for Killarney, the Ring of Kerry, or the Dingle Peninsula.

A friend of mine who organises cycling tours around Kerry swears by this airport. Her groups fly in from London, pick up their bikes in Killarney, and are on the road before most people landing in Dublin have cleared passport control.

2. Donegal Airport (CFN)

Donegal Airport, located near Carrickfinn in the Gaeltacht (Irish-speaking) area of the county, is one of the most scenically dramatic airports in the world. The approach takes you over Atlantic beaches and rocky headlands, which is either spectacular or terrifying depending on your relationship with turbulence.

It connects mainly to Dublin and provides an essential service for a county that is geographically cut off from the rest of the Republic, requiring passage through Northern Ireland or a very long detour to the south. For visitors to Donegal’s wild north coast, this airport is invaluable.

3. Connemara Airport (NNR)

Connemara Airport, located at Inverin (Indreabhán) in County Galway, is one of Ireland’s smallest and most charming airports. It primarily serves the Aran Islands, with short scheduled flights connecting the islands to the mainland in a matter of minutes rather than the longer ferry crossing. If you’re planning a trip to Inis Mór, Inis Meáin, or Inis Oírr, flying from Connemara Airport is by far the quickest option. The flights are operated by Aer Árann Islands and take around 10 minutes each way. It’s a very different experience from a busy international terminal, but for getting out to one of Ireland’s most atmospheric island destinations, it’s hard to beat.

How to choose the right airport in Ireland for your trip

Here’s a simple way to think about it:

• Staying in Dublin or the east coast: Dublin Airport, no question.
• Exploring the southwest (Cork, Kerry, West Cork): Cork Airport, or Kerry Airport if you’re heading straight to Kerry.
• Heading to the west (Galway, Clare, Limerick): Shannon Airport.
• Visiting Mayo, Sligo, or the northwest of the Republic: Ireland West Airport Knock.
• Travelling to Belfast or the north: Belfast International or Belfast City Airport.
• Going to Donegal: Donegal Airport (from Dublin) or City of Derry Airport (from UK cities).

One underrated consideration is renting a car. Most visitors to Ireland rent a car, and picking it up at a smaller regional airport rather than Dublin can mean shorter queues, cheaper rates, and less stressful traffic on arrival. If your final destination is in the west or south, landing at the closest regional airport and driving from there is almost always the better option.

A quick note on flying between Ireland and the UK

If you’re combining Ireland with a UK trip, the connections are excellent. Dublin, Cork, Shannon, Belfast International, and Belfast City all have frequent flights to London’s various airports, as well as to Manchester, Birmingham, Edinburgh, and others. Ryanair and Aer Lingus dominate this market, with fares that can be remarkably cheap if you book early.

Conclusion

Ireland’s airports are more varied and more useful than many visitors realise. Dublin gets most of the attention because it’s the biggest and best connected, and often it really is the right choice. But for a huge number of itineraries, flying into a regional airport closer to your destination will save you time, stress, and quite possibly money.

The island is smaller than it looks on a map, but its roads are narrower and slower than you’d expect. An hour saved at the airport can easily translate into an extra afternoon in Dingle or a relaxed morning in Connemara. Choose wisely, and your trip starts well before you land.

Frequently asked questions about airports in Ireland

For more tips on planning your Ireland trip, check out our guides on How to get around Ireland and Driving in Ireland.

Slán go fóill (goodbye for now)!