Dublin · Ireland
DUB — Dublin Airport
Two terminals joined by a walkway, and US immigration before you board
Dublin's most distinctive feature is not its layout but its US preclearance facility. On flights to the United States you clear American immigration and customs in Dublin before boarding, then land as a domestic passenger with no arrival queue at the other end.
That convenience has a cost at this end. Preclearance is a full immigration process inserted into your departure, so you need to be at the airport considerably earlier than for an ordinary international flight. Underestimating it is the single most common problem here.
Terminals and how they connect
Terminal 1
The older building, handling most European and short-haul traffic including the majority of low-cost operations.
Terminal 2
The newer terminal, handling long-haul flights and containing the US preclearance facility.
Getting between them
A covered walkway connects the two landside, taking around ten minutes on foot. There is no airside link, so a terminal change means clearing security again.
US preclearance
Located in Terminal 2. Passengers on US-bound flights complete American immigration and customs here before boarding, and then wait in a dedicated departure area.
Getting into Dublin
Times below are realistic ranges rather than best cases. Rail journeys keep to a timetable; road journeys do not, and treating the two the same is how people miss flights.
Airlink and Aircoach buses
25 to 45 minutes to the centre
Frequent express coaches serving the city centre and the main hotel districts, with luggage holds. The most practical option for most arrivals.
Dublin Bus local routes
40 to 60 minutes
Considerably cheaper and slower, with more stops and less luggage space. Fine if you are travelling light and not in a hurry.
Taxi
20 to 45 minutes
Metered and straightforward. The run into the city is short but the approach roads congest at peak times.
Connecting through DUB
Connections at Dublin split into two quite different cases. A straightforward European to European transfer within one terminal is simple. A European arrival connecting onto a US-bound flight has to absorb the preclearance process, which is a full immigration and customs check, and the standard minimum connection time is not generous for it. Treat that combination with real caution, especially on separate tickets.
Worth knowing before you fly
Preclearance means arriving much earlier
You are clearing US immigration in Ireland. Budget substantially more time than for a normal international departure — the queue is inside your departure process, not on arrival.
There is no train to the airport
Dublin has no rail link to its airport, so every option is a road journey. The express coaches are frequent and reliable, but they sit in the same traffic as everything else.
The terminals connect landside only
The walkway between T1 and T2 takes about ten minutes and is outside security. A terminal change means going through screening again.
Terminal assignments, transit timetables and fares all change. Confirm the details that matter to your trip with the airport or transport operator before you travel.
Routes through DUB
Flying to Dublin
FAQ
DUB — common questions
Terminals, transfers and getting into the city.
How does US preclearance at Dublin work?
On flights from Dublin to the United States you pass through US immigration and customs at Terminal 2 before boarding, then wait in a dedicated departure area. On landing in the US you arrive at a domestic gate and walk straight out with no arrival queue. The benefit is substantial, but you must be at Dublin considerably earlier than for an ordinary international departure.
How do I get from Dublin Airport to the city centre?
There is no rail link, so it is a bus or taxi. The Airlink and Aircoach express services run frequently to the city centre and main hotel areas with luggage holds, taking twenty-five to forty-five minutes. Local Dublin Bus routes are cheaper and slower. A taxi takes twenty to forty-five minutes depending on traffic.
How much time do I need to connect at Dublin?
For a European to European transfer, a standard connection is usually fine. For a European arrival connecting onto a US-bound flight, allow much more, because you have to complete the full US preclearance process before boarding. That is an immigration and customs check inserted into your connection, and the published minimum does not leave much room for it.
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