12 Steps To Fly Through Dublin Airport US Preclearance

Welcome To The US (in Dublin)
When you fly from Dublin to the US, Dublin Airport's US Preclearance facility lets you clear US immigration and customs right here in Dublin.
Here's what it means for you:
- You land in the US as a domestic passenger.
- It's much quicker than doing immigration in a US airport.
- You walk right off the plane in the US as if you landed on a domestic flight.
- No passport, no customs, no security when you land in the US.
- You don't have to collect your bags for customs and recheck them.
- You can book a shorter connection time for your next flight.
Preclearance Changed Everything!
Before the Preclearance Facility opened in Dublin, you landed tired in JFK after 8 hours flying over the Atlantic, then waited an hour in a long immigration line, collected your bags, went through customs, rechecked your bags, went through security again, and then sprinted to your connecting flight.
The day that Preclearance opened and you could clear American immigration in Dublin was a very happy day for this veteran Atlantic flier.
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I Know Preclearance
I lived in the US for 20 years, have flown between the US & Ireland more than 100 times and have used US immigration in Dublin so many times that I'm on first name terms with its facial recognition scanner.
12 Steps To Dublin Preclearance
Here are all the steps showing you how to do US Preclearance at Dublin Airport.
Check-in & Security
- Arrive at Dublin Airport Terminal 2 at least 3 hours before your flight to allow time to get through Preclearance.
- Check in with your airline as normal.

- Go up the escalators to the 3rd floor and through regular airport security. There is a Fast Track lane on the left for business class passengers.

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US Preclearance Facility
- Walk through the winding Duty Free area & look for "US Departing Flights" screens.

- See what time Preclearance opens for your flight. If it's not open yet, wait in the main terminal. If it's open, go there now.
- Follow the signs down the steep escalators to the main T2 departures levels.
- At the bottom of the escalators, join the line to enter Preclearance. Have your passport, boarding pass and immigration papers ready to show. This line is usually 5 minutes, but I've waited 45 minutes too. There is no priority line for business class passengers here.
- Walk downstairs to the US Preclearance Facility area. Join the line for security. It's ok to have liquids at this security.
- After security is US immigration. There are separate lines for US citizens & Non-US citizens. Global Entry & Mobile Passport (the CBP app) is available.
- Smile at the nice immigration officer who holds your fate in their hands. Breathe out when they approve your entry. You have now passed US immigration and customs.


The Boarding Gate
- Have one last Guinness before boarding your plane.
- Land in the domestic terminal in the US. You don't go through immigration here. If you have a connecting flight don't collect your checked luggage.
Global Entry Dublin Airport
I see a lot of confusion on the Irish travel forums about the Global Entry and TSA PreCheck, so I'll clear that up here.
TSA PreCheck: This is for security in US airports only. You get no security privileges in any Irish airport with TSA.
Global Entry: Global Entry is the greatest thing in travel today. I have it and pass through immigration in 15 seconds. You can use Global Entry to go through US immigration in Dublin. It does not get you faster security privileges though.
Mobile Passport: This can be used in Dublin Airport. If you don't have Global Entry, then I highly recommend you download the Mobile Passport app and use it whenever you enter any US immigration facility.
Dublin Preclearance Tips
For A Smoother Journey
- The Preclearance departure gate area is always packed. Go to the ghost town upper level to wait. It's emptier than Pyongyang's airport.
- Don't buy food before Preclearance. US Customs area may take it. My chicken sandwich was binned as a 'threat to US biosecurity'.
- There's another duty-free shop after Preclearance. Buy all you want there, you've already cleared customs. Not that we approve of breaking laws...
- You can save money by paying for lounge access. More about this later
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Flying Business Class Through Preclearance
I fly business class often to the US from Dublin so I know the drill. You'll encounter five queues before seating in your throne seat.
- Airline Check-in: Priority check-in lane.
- Regular Airport Security: Priority lane on the left.
- To Enter Preclearance: No priority line. The underpaid staff will give you that look if you try to claim business class privilege.
- Preclearance Security: There is a priority line.
- Immigration: No priority But if you're seated up front, you surely have Global Entry.
My average time from airport arrival to clearing Preclearance when traveling in business class is 45 minutes. But I still always get to the airport 3 hours early.
- Dublin traffic is heavy. One accident and you're missing your flight.
- I've waited an hour in the line to get into Preclearance before. Business class doesn't get priority lane. That has only happened once, but it does happen.
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51st & Green Lounge Dublin
51st & Green is Dublin Airport's best lounge and it isn't even close.
You'll find 51st & Green after you've survived US Preclearance. But at least you're done with all checkpoints and can properly relax until boarding.

51st & Green Lounge Access
Lounge access is free for business class but all transatlantic passengers can go to the lounge. Today it costs β¬39 to enter the lounge.
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Save Money By Paying For The Lounge
I happily pay for the lounge because this is what I normally get in the quiet lounge vs. paying airport prices in the packed general area:
- Irish breakfast: β¬20
- Guinness for dessert: β¬8
- Whiskey for the nerves: β¬8
- Water to sober up: β¬4
- Shower before boarding: priceless
That's β¬40 value for the β¬39 entry fee. Buy a lotto ticket with the Euro you saved. Send me a cut if you win.
The Liffey Lounge
The Liffey Lounge is the OneWorld lounge in Terminal 2, but it's before Preclearance. Here is my Liffey Lounge Review

Connecting in Dublin Airport?
Dublin Airport has transformed into a major hub with many passengers connecting in Dublin between the US and Europe. Here is

1. Take a Nap! Walk from the airport hotel to the terminal in minutes. π Check availability now
2. See the Cliffs of Howth. Howth is the most beautiful place in all of Dublin and close to the airport. πTake This Tour.
More Dublin Airport Tips

Sort the Essentials Now for a Smooth Trip
πΌ Need a Hotel? Iβve reviewed the best Dublin hotels
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π Irish trip planning help. One call with me saves you hours of research
π² Need an eSIM? Yesim, install now and have data when you land
β Calmness of the Lounge Get into 1,300+ lounges worldwide
π Rent a Car Compare Dublin Airport rental rates here
π Travel insurance is inexpensive. Peace of mind is priceless.
π Need a Bus or train? Check bus and train times here
π§³ Luggage Storage. Save your arms & find a place to store your bags
π Go Explore! Here's what to do when you get there