$266 Find Cheap Flights from Ireland to the United States

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What is the cheapest flight to the United States?

These are the best round-trip prices found by users searching on KAYAK in the last 72 hours.

The cheapest ticket to the United States from Ireland found in the last 72 hours was to Newark Airport, at $394 round-trip. The most popular route is Dublin (DUB) to Newark Airport (EWR) and the cheapest round-trip airline ticket found on this route in the last 72 hours was $394.

What is the cheapest month to fly from Ireland to the United States?

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for flights from Ireland to the United States, removes the top 0.1% to account for outliers, and then takes the median of all values for each month.

The cheapest month for flights from Ireland to the United States is February, when tickets cost $574 (return) on average. On the other hand, the most expensive months are July and August, when the average cost of round-trip tickets is $891 and $814 respectively.

How far in advance should I book a flight from Ireland to the United States?

To calculate weekly average prices, KAYAK takes all prices for each week before departure over the last year for round-trip flights to the United States, removes the top 0.1% to account for outliers, and then takes the average of all the values for each week.

To get a below average price on the flight from Ireland to the United States, you should book around 2 weeks before departure. For the absolute cheapest price, our data suggests you should book 14 weeks before departure.

Which is the cheapest airport to fly into in the United States?

Prices will differ depending on the departure airport, but generally, the cheapest airport to fly to in the United States is Boston Logan Intl Airport (BOS), with an average flight price of $575.


Good to know

Low seasonJanuary
High seasonJuly
Cheapest flight$266
Best time to beat the crowds with an average 5% drop in price.
Most popular time to fly with an average 20% increase in price.
Flight from Dublin to Newark Liberty Airport

FAQs for booking flights from Ireland to the United States

  • How does KAYAK find such low prices on flights from Ireland to the United States?

    KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from Ireland to the United States.

  • How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from Ireland to the United States?

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight from Ireland to the United States is likely to change within 7 days, so travelers know whether to wait or book now.

  • What is the Hacker Fare option on flights from Ireland to the United States?

    Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional round-trip ticket. You could then fly from Ireland to the United States with an airline and back with another airline.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from Ireland to the United States?

    Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying from Ireland to the United States up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

  • What is the cheapest day to fly to the United States?

    Based on KAYAK data, the cheapest day to fly to the United States is Wednesday where round-trip tickets can be as cheap as $694. On the other hand, the most expensive day to fly is Saturday, where round-trip prices are $768 on average.

  • What is the cheapest time of day to fly to the United States?

    The cheapest time of day to fly to the United States is generally at night, when round-trip flights cost $411 on average. Morning departures are around 18% more expensive than evening flights, on average. The most expensive time of day to fly to the United States is generally in the morning, which is peak travel time and where the average cost of a ticket is $666.

Reviews of the top 5 airlines serving from Ireland to the United States

 
Need help choosing which airline to fly with from Ireland to the United States? KAYAK airline reviews give an overall score for each airline based on loads of factors, including comfort, boarding, in-flight entertainment and more, to make your decision easier. See airline scores according to verified KAYAK customer reviews.
8.0
DeltaOverall score based on 7982 reviews
7.9Comfort
7.3Food
8.5Crew
7.9Entertainment
8.2Boarding
Airline reviews

After all the weather issues at least they got me to my destination the next day

4.0 OkayAnonymous, Jul 2025HSV - ATL
Read more Delta reviews

After all the weather issues at least they got me to my destination the next day

My flight was canceled after being rescheduled for four days canceling my trip. Kayak and everyone affiliated with it I.e the airlines, and just fly have been excruciating to deal with. My trip to visit family had to be canceled as there was no way to make it. I am furious at all of you.

They delayed our flight because of bad weather in NY which was completely understandable. Then they cancelled our flight and a later flight that evening. The earliest we could fly was the next morning. We ended up buying last minute tickets on another airline and made it home slightly delayed but safely that evening. Delta kept saying it was weather related but if that was the case how did we make it back on another airline? The weather in NY was cloudy but not bad.

From Atlanta to Savannah - flight connection was way to short (we weren't even late landing ) and flight was already boarding when we landed - we were told we were the last on board and so we had to gate check our bags. Once we got on the plane, there were at least seven open bag spots so that was unnecessary delay. There should be better communication between the gate agent and the crew.

Crew was excellent. Comfort seats not as nice as other kinds of planes.

Not a "Delta" issue, but a JFK issue: We booked a connecting flight with 3 1/2 hours between to clearn immigration and customs. Our inbound flight (BCN to JFK) was on the taxiway 45 minutes which ate into our layover time. Immigtration was insanely quick with the CBP MPC app; however, clearing TSA (again, after we were ALREADY cleared in Spain on the inbound international flight) took over 95 minutes. This left us with 10 minutes before boarding the connecting flight (JFK to SAN) to walk to the far end of Terminal 4 and try to find food. We didn't find any food that could promise to serve us in under 10 minutes so we boarded the Delta flight after coming off a plance and an 8-hour flight knowing that we wouldn't be served any food on the next 5 1/2 hour flight. I feel like Delta needs to put pressure on the JFK TSA to open more screening stations (by our count, we saw only 5 scanners open and a line of - as we said - over 90 minutes. The insult is that we WERE ALREADY SCREENED through TSA, but as you come off one flight into the USA, you have to go through the whole process again. It seems like if you have a connecting flight, there should be a way to pass through immigration and customs without needing to return through TSA.

The way BCN airport handled boarding was a huge improvement over our trip to Spain from JFK. Instead of gate-mosquitos edging in before their zone was called, in BCN they had clearly marked lines for Zones 1-8 and people just lined up correctly. The flight itself was uneventful. The meal (curried chicken and rice) was one of the better meals we've had on Delta. Entertainment options were plentiful, power chargers were available in Main Cabin, and seats were decent. Flight staff were very friendly and positive throughout the 8 hour flight.

It was a great flight and the stewards and stewardess were all kind and accommodating!! The seats were comfortable and entertainment screen excellent!

The checkpoint hornets are always looking fhrough Americans' luggage keeping what they deem impassible! Grrrrr!

There are 4 flights in consecutive gates with about the same departure time. Two flights were boarding at the same time. One was delayed or boarding would be happening at the same time. I am not sure what Delta and LAX need to do to have a better layout at the end of Terminal 2

Boarded plane and then delayed 1.5 hours while on the plane

It was all good flight was on time, service was good I enjoyed a few movies and everything was smooth

Survey sent before we actually left. Delay after delay. Now a crew problem.

I love flying with United. Unfortunately, I flew on an older plane with minimal upgraded technology (no Bluetooth functionality or handy charging ports). Otherwise, the flight was great and even arrived early.

They changed my seats after I checked in and I was stressed from the time I saw that information until just before boarding, when the gate attendant fixed it, but it shouldn't have happened. And if it couldn't be prevented, then the people on the phone I spoke with should have done something to help, which they did not, nor did they offer me compensation, just meaningless apologies.

Horrific. They missed my connecting flight to San Diego. I didn’t get there until Monday at 9am when I had a mandatory court settlement conference scheduled at 6am since we had parties on the east coast. This caused many issues. All because United apparently forgot to hold the doors open until my flight landed that only had a 10 minute delay. This was the last flight to Southern California. So I couldn’t even rent a car to finish the trip. United cannot be trusted when traveling on specific days and times since weather didn’t have anything to do with the delays.

My flight was delayed a very short period of time but they did not hold my connecting flight to San Diego, also through United. So they closed the doors before we got off our plane. They would only have to help the door open for another five to ten minutes. So I missed a court deadline for a manditory mediation settlement conference for my client. I had to get an associate to be there in person and be on the phone with him relaying what he needs to do the entire time. The court was very upset with me and so was my client. United cannot be trusted.

Very rough getting into denver. my kid threw up it was so rough.

We were given vouchers we couldn’t use with a 5.5 hour delay

We had a very long diversion and our food voucher didn’t work because the restaurants were closed

AA re-routed flight from HNL to LAX due to delay. My group of 3 with reserved seats in row 9 was broken up, with one assigned to a middle seat, another in the last row of the plane. Not happy. No explanation to the delay. No apologies. No compensation. Would have been nice to be offered an Admiral Club admission or a voucher for the extra 3 hours of layover in LAX. Could not hear the boarding gate announcements in LAX. Adjacent gate was boarding at the same time. Loud speakers were competing against each other. Barely made my boarding group.

Boarding gate in Honolulu was staffed with a great clerk with a soothing voice despite the flight delay of over an hour. Flight attendants in the plane were all grumpy, not pleasant looking bunch. Their sour attitude showed throughout the flight. Inly able to get a select few movies started. Most of the movie links in the “free entertainment” did not work.

Above and beyond effort from this crew in a tough situation. So helpful and understanding. Thank you!

I flew Business Class. Rory, one of the Cabin stewards, was attentive, explained the menu, provided appropriate drinks. was

The flight delay in Dallas created a domino effect that impacted all connecting flights, leading to an increase in the number of connections. As a result, I missed my flight from Casablanca to Marrakech due to the tight turnaround when landing in Casablanca. CMN Airport was understaffed; only one employee was available to assist passengers while others just stood by and watched. It was an extremely frustrating situation. Many passengers were crying and banging their hands on the counter while talking to customer service representative Allabough. Unfortunately, Allabough couldn’t change my flight in the system. At the same time, I was on the phone with an American Airlines customer service representative named Solomon, who said he couldn’t make the change either. So, I decided to take an ONYA Voyages train from Casablanca to Marrakech to reach my destination on Friday, June 26. It turned out to be an unpredictable trip.

The flight was fine and the crew awesome. The problem is ORD and AA. Computers went down, ORD fell apart and a 40 min flight turned into a 3 hour trip. Guess the answer is to not try and fly to ORD after noon. But, as I said, crew was awesome and did everything they could to lesson the flight time.

Almost a 6 hour flight and the only food option is a cheese plate… and chips. Also how is it there are no options for texting on American. I’ll be going back to delta and united.

This flight never occurred because AA couldn’t get their act together.

Terrible. Cancelled my original flight. It made getting a boarding pass difficult. The AA employee (in a loud voice, so everyone around could hear) griped at me for not getting a boarding pass 24 hours before. I asked how I was supposed to do that when I had no idea what flight I was going to be on. She said (loudly), “Talk to AA customer service, not me!” I could certainly tell serving customers was not important to her. Our new flight was set to a completely different city. We had to change our rental car, and the price went way up. It took 2-1/2 hours to get checked in. By then our new flight had left. We ended up on stand by and had to split up the family to get to our destination. It cost us the whole first day of the trip. AA needs to employ people who actually care about doing a good job. I suppose those people are getting harder to find, but atleast try.

A cookie and a soda, packed like sardines, will never be a positive experience. Also, boarded a 5:30 flight at 7:45pm

The ease of boarding was good. I wish they had something to eat on the plane.

The check in process at CDG was absolutely unacceptable. We arrived to the airport 3 hours and 20 minutes before our departure time, waited in line for 1 hour and 30 minutes to check in (despite having checked in online and only needing to check a bag), then were forced to check all of our rolling luggage despite the fact that all were compliant with carry-on requirements. The staff at the desk were rude and there were only two desks open, while eight people were working. The check in desk wasn’t even opened on time (3 hours prior to departure) and there was no communication about when it would open or why there was a delay. We feared missing our flight because the departure board was not updated, so rushed to our gate to board once we were through security because it was 20 minutes prior to departure, only to wait another 30 minutes before boarding even started. Communication was lacking throughout the process. What a horrible end to our trip.

I like Aer Lingus so that is why I’m writing this critique so they can become better. The boarding gate was too small to board properly. Our seats were toward the back of the plane knowing we would be boarding after business class, we moved to that area after business class boarded. An Aer Lingus employee told us we couldn’t stand there. We explained we were the next group to board and wouldn’t even be able to hear when our boarding was called. She didn’t care and was not very professional. The cabin was freezing. I wouldn’t feed my dog the food. We were over an hour late coming into chicago because of weather which can’t be avoided. I asked the crew if they could make an annoucement for before whose final destination is chicago to wait and allow the people with connecting to deplane first. He said there are a lot of people with connecting flights. He said, it doesn’t matter. Well, yes it does. He could have been more considerate of his passengers.

The seat spacing was good. The food, not so good... typical airline food. 😕

I would face like to have more selections for entertainments overall it was very good. .

I would definitely use a Linus again, the price was right, the service is excellent. No delays. Wish I had a direct flight from my hometown Detroit.

At check-in the unmanned machines said QR code was invalid so had to queue for over an hour to check in bags

i used to fly aer Lingus regularly but due to price - poor seating etc i have been using other carriers - i now have aer lingus in my state and the price is always the highest - i have flown to Ireland 11 times in last 24 months and have not used Hartford because of price

Nicest staff I’ve experienced on a plane! Good food, great entertainment, and they gave out little blankets that my kids loved. All in all, great experience.

I dont fly them much anymore. Other carries offere better pricing and better seating options

The flight was an hour late leaving Heathrow. The food was mediocre. When we got to Austin, my husband’s luggage was missing. He filled out information at baggage claim. We are waiting to hear something. His name is Henry Jacob Braunig.

The food was very good and it came multiple times

Flight from LGW to JFK delayed by 4 hrs No explanation given until the pilot said the delay due to planned maintenance on the aircraft

We arrived late to London, and consequently were 5 min. late to be allowed through security for our next flight. Even though dozens of people missed the same flight, BA did not radio ahead to hold open security for an extra 5-10 min. to allow people to get on the flight. This caused an additional 6 hour delay in London after waiting over an hour in Customer Service to get rebooked. They did not have enough staff on hand to help people in a timely manner. Not at all happy with the BA's customer care or customer service.

All service prior to the flight was terrible: online check-in not working, no customer service tel,, multiple airport scanners not working, A huge mess.

CONSTANT ERROR MESSAGE THAT THE WIFI COULD NOT BE PURCHASED DUE TO INABILITY TO CONNECT PAYMENT SYSTEM VIA SATELLITE. THIS HAPPENED IN BOTH DIRECTIONS. THE MAIN REASON I TRAVEL IN PRIORITY IS TO BE ABLE TO WORK FOR WHICH I NEED ACCESS TO INTERNET. .

They lost my luggage. Lady who was helping with it in Austin was rude. Not very helpful!

Waited 3.25 hours in plane only to have the flight cancelled.

bad, made it to connecting flight and they didnt let me board

More space, of course. a footrest! more room to walk. Movie selection was awful. Some good documentaries would help if the movies can't be better. The flight itself was great, crew was great.

Book cheap flights from Ireland to the United States

Recent round-trip flight deals

11/13Thu
1 stopScandinavian Airlines
31h 05mDUB-EWR
11/20Thu
2 stopsScandinavian Airlines
18h 40mEWR-DUB
$266
12/4Thu
1 stopScandinavian Airlines
31h 10mDUB-EWR
12/13Sat
1 stopScandinavian Airlines
11h 50mEWR-DUB
$268
10/2Thu
1 stopDelta
12h 35mDUB-BOS
10/8Wed
nonstopDelta
6h 05mBOS-DUB
$446
11/19Wed
nonstopAmerican Airlines
7h 25mDUB-PHL
11/25Tue
1 stopAmerican Airlines
11h 20mPHL-DUB
$448
10/27Mon
nonstopAer Lingus
8h 00mDUB-PHL
11/2Sun
nonstopAer Lingus
6h 35mPHL-DUB
$450
9/3Wed
1 stopAmerican Airlines
12h 00mDUB-PHL
9/21Sun
1 stopAmerican Airlines
12h 25mPHL-DUB
$452
10/27Mon
2 stopsDelta
23h 22mDUB-PHL
11/2Sun
1 stopDelta
22h 05mPHL-DUB
$456
11/7Fri
1 stopUnited Airlines
18h 33mDUB-LGA
11/10Mon
1 stopUnited Airlines
9h 51mLGA-DUB
$527
12/1Mon
1 stopUnited Airlines
11h 38mDUB-LGA
12/14Sun
1 stopUnited Airlines
9h 32mLGA-DUB
$529
8/28Thu
nonstopAer Lingus
7h 40mDUB-PHL
9/3Wed
nonstopAer Lingus
6h 40mPHL-DUB
$551

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Recent one-way flight deals

12/15Mon
1 stop
20h 40mDUB-JFK
$270
9/9Tue
1 stop
28h 00mDUB-MCO
$271
8/28Thu
1 stop
17h 40mDUB-EWR
$273
9/10Wed
1 stopPLAY
11h 15mDUB-BOS
$296
8/31Sun
1 stopPLAY
11h 15mDUB-BOS
$339
9/17Wed
2 stopsAer Lingus
14h 00mDUB-BOS
$394
9/8Mon
2 stopsAer Lingus
25h 30mDUB-BOS
$404
9/25Thu
1 stopBritish Airways
11h 55mDUB-PHL
$483
8/29Fri
1 stopAmerican Airlines
12h 45mDUB-PHL
$612
7/22Tue
1 stopBritish Airways
11h 50mDUB-PHL
$618

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Last minute flights to the United States

Last minute flight, train and bus deals

7/7Mon
multi-stopScandinavian Airlines
25h 10mDUB-JFK
11/17Mon
multi-stopScandinavian Airlines
13h 10mJFK-DUB
$463
7/8Tue
multi-stopScandinavian Airlines
24h 25mDUB-JFK
11/18Tue
multi-stopScandinavian Airlines
19h 45mJFK-DUB
$465
7/8Tue
multi-stopUnited Airlines
12h 40mDUB-EWR
11/18Tue
nonstopUnited Airlines
6h 40mEWR-DUB
$699
7/8Tue
multi-stopUnited Airlines
12h 39mDUB-LGA
11/18Tue
multi-stopUnited Airlines
11h 55mLGA-DUB
$704
7/4Fri
nonstopAer Lingus
7h 35mDUB-JFK
7/11Fri
multi-stopAer Lingus
18h 40mJFK-DUB
$740
7/7Mon
multi-stopAmerican Airlines
12h 56mDUB-BOS
7/12Sat
multi-stopAmerican Airlines
31h 20mBOS-DUB
$780
7/7Mon
multi-stopAmerican Airlines
14h 23mDUB-BOS
7/12Sat
multi-stopAmerican Airlines
31h 20mBOS-DUB
$783
7/4Fri
nonstopAer Lingus
7h 35mDUB-JFK
7/11Fri
multi-stopAer Lingus
18h 40mJFK-DUB
$784
7/7Mon
multi-stopDelta
10h 30mDUB-LGA
11/17Mon
multi-stopDelta
13h 45mLGA-DUB
$898
7/7Mon
multi-stopDelta
14h 50mDUB-LGA
11/17Mon
multi-stopDelta
12h 45mLGA-DUB
$909

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Everything you need to know for your flight to the United States

Cabin class types available on flights to the United States

Cabin classes available on flights to the United States. Prices are the lowest found on KAYAK over the last 7 days. Price and availability is not guaranteed.

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