Shannon Airport was the first airport in the world, outside of the Americas, to provide full US Preclearance facilities (5th August 2009), making arrival in the US easier and faster. This means visitors arriving in the US are considered to be domestic passengers.
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Shannon Airport has been used by the US military on their way to/from wars in Iraq, Afghanistan and elsewhere for over a decade and a half. It has also operated as a stopover point for CIA rendition planes.
Limerick is located just 25 kilometres from Shannon International Airport, which has full US customs pre clearance. Shannon is Ireland's second-largest long-haul airport, the only one outside the capital offering direct flights to all key Irish markets – the UK, European mainland and US.
Shannon Airport has one terminal that's split into two floors. Both arrivals and departures occupy the ground floor, while the first floor is reserved for restaurants, lounges, a museum that showcases the airport's history, U.S. pre-clearance for people traveling to the States, and passenger screening.
Get through US Immigration – in IrelandIf you're travelling to the United States from Shannon, our full US Preclearance facilities means you can undertake all immigration, customs, and agriculture inspections before you leave, making your arrival in the US easier and faster.
For example, if you're concentrating most of your time in Dublin city and Northern Ireland, you should fly in and out of Dublin. If you really want to see the west or south west, Shannon will be a better fit. If your itinerary has you seeing a little bit of everything, fly into one airport and out of the other.
Most trans-Atlantic carriers that fly to Dublin, the capital, also fly to Shannon on the western side of the island. Dublin's bigger size often means it has cheaper fares.
-If your preference is for culture, history, nightlife, top restaurants choice would be Dublin. If your preference is for scenery, small towns, friendly people choice would be Shannon. If you're planning on spending the entire week in the city, you'll definately want to book your flights in and out of Dublin.