$298 Find Cheap Flights from Ireland to the United States - Compare and Save

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from Ireland to the United States departing on 8/26. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.
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1 adult, Economy, 0 bags

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Cheap Flights from Ireland to the United States

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from Ireland to the United States that are departing in the next months. While these flights were available on KAYAK in the last 72 hours, prices and availability are subject to change and deals may expire.
Discover the best prices for you by selecting your travel dates on KAYAK.

Recent round-trip flight deals from Ireland to the United States

Thu, Oct 8 - Fri, Oct 16
Scandinavian Airlines Logo
11:10 am - 1:15 pm
DUB
-
EWR
31h 05m
1 stop
Scandinavian Airlines Logo
5:45 pm - 8:00 am
EWR
-
DUB
33h 15m
1 stop
$355Scandinavian Airlines
Thu, Oct 8 - Fri, Oct 16
Scandinavian Airlines Logo
11:10 am - 1:15 pm
DUB
-
EWR
31h 05m
1 stop
Scandinavian Airlines Logo
5:45 pm - 8:00 am
EWR
-
DUB
33h 15m
1 stop
$366Scandinavian Airlines
Mon, Nov 2 - Sun, Nov 8
Aer Lingus Logo
2:00 pm - 4:25 pm
SNN
-
JFK
7h 25mnonstop
Aer Lingus Logo
6:30 pm - 5:55 am
JFK
-
SNN
6h 25mnonstop
$378Aer Lingus
Mon, Nov 2 - Sun, Nov 8
Aer Lingus Logo
2:00 pm - 4:25 pm
SNN
-
JFK
7h 25mnonstop
Aer Lingus Logo
6:30 pm - 5:55 am
JFK
-
SNN
6h 25mnonstop
$382Aer Lingus
Thu, Oct 22 - Thu, Oct 29
Delta Logo
5:55 am - 5:07 pm
DUB
-
JFK
16h 12m
1 stop
Delta Logo
10:20 pm - 8:45 am
JFK
-
DUB
6h 25mnonstop
$521Delta
Thu, Sep 3 - Mon, Sep 7
Delta Logo
11:10 am - 5:07 pm
DUB
-
JFK
10h 57m
1 stop
Delta Logo
9:30 pm - 9:15 am
JFK
-
DUB
6h 45mnonstop
$522Delta
Sat, Nov 7 - Sun, Nov 15
American Airlines Logo
11:30 am - 9:38 pm
DUB
-
LGA
15h 08m
2 stops
American Airlines Logo
8:30 am - 7:15 am
LGA
-
DUB
17h 45m
1 stop
$523American Airlines
Thu, Sep 17 - Wed, Sep 30
American Airlines Logo
11:45 am - 11:44 pm
DUB
-
LGA
16h 59m
1 stop
American Airlines Logo
4:59 pm - 9:35 am
LGA
-
DUB
11h 36m
1 stop
$526American Airlines
Fri, Sep 18 - Mon, Sep 21
JetBlue Logo
10:40 am - 12:51 pm
DUB
-
BOS
7h 11mnonstop
JetBlue Logo
9:04 pm - 8:20 am
BOS
-
DUB
6h 16mnonstop
$546JetBlue
Thu, Sep 17 - Mon, Sep 28
JetBlue Logo
10:40 am - 12:51 pm
DUB
-
BOS
7h 11mnonstop
JetBlue Logo
9:04 pm - 8:20 am
BOS
-
DUB
6h 16mnonstop
$549JetBlue
Booking Insights

KAYAK's insights & trends for flights to the United States

Get data-powered insights and trends for flights to the United States to help you find the cheapest flights, the best time to fly and much more.

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 5 days.

The cheapest ticket to the United States from Ireland found in the last 5 days was to Newark Airport, at $471 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 5 days was $471.

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 November, when tickets cost $562 (return) on average. On the other hand, the most expensive months are July and August, when the average cost of round-trip tickets is $748 and $739 respectively.

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

The average price for all round-trip flights from Ireland to the United States depending on the time of departure, clicked by users on KAYAK in the last 2 weeks.

The cheapest time of day to fly to the United States is generally in the evening, when round-trip flights cost $558 on average. Morning departures are around 26% more expensive than evening flights, on average. The most expensive time of day to fly to the United States is generally in the afternoon, which is peak travel time and where the average cost of a ticket is $710.

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, which saves you about 27% compared to booking last minute. For the absolute cheapest price, our data suggests you should book 3 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 $581.

Good to know

Low season

January

Cheapest flight

$298
Best time to beat the crowds with an average 8% drop in price.
Most popular time to fly with an average 12% increase in price.
Flight from Dublin to Newark Liberty Airport

Flights from Ireland to the United States: the best tips from KAYAK users

Insights shared by verified travelers who flew the route from Ireland to the United States 
EDFlew with American Airlines
DUB
-
PHL
Jul 2026
Expect a bad cushion to sit on so maybe buy something to sit on. Bring food because although you get food it’s not that good. Hopefully you’re not delayed because no one will tell you why and you won’t know until the day of
Verified travelerFlew with Aer Lingus
DUB
-
LAX
Apr 2026
If continuing from LAX on SkyWest, be prepared for a long walk followed by a bus transfer, and get your necessities before you leave the main terminal areas.
JimFlew with Aer Lingus
DUB
-
BOS
Mar 2026
The A330 is very loud in the back; better to book a forward seat.
JohannaFlew with Aer Lingus
DUB
-
ORD
Feb 2026
Are Ling’s was great, and boards from the back of the plane, which made boarding way less chaotic and much quicker.

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 Thursday where round-trip tickets can be as cheap as $692. On the other hand, the most expensive day to fly is Monday, where round-trip prices are $801 on average.

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.
7.8
DeltaOverall score based on 8481 reviews
7.2Food
7.8Comfort
7.8Entertainment
8.5Crew
8.1Boarding
Airline reviews

It was good delayed again but once on board the flight crew were very good the entertainment and wifi worked on this plane and we were offered snacks and drinks

8.0 ExcellentJennifer, Jul 2026
ATL - ABQ
Read more Delta reviews

It was good delayed again but once on board the flight crew were very good the entertainment and wifi worked on this plane and we were offered snacks and drinks

The boarding agent guy in Lexington on 7/23 that boarded the flights to Atlanta is very rude for working in customer service. I know there were delays but he was dismissive rude and arrogant. Most native Kentucky residents are nice and very cordial he needs to eat a big ole piece of humble pie. I watched him be rude to several people and as much as he could of filled up a delayed flight to save you money and he was so rude to people it was ridiculous. Next no water or snacks on short flights is awful 1st you delay a flight then do not even offer water on the flight.. No thanks I like delta better but I travel ever week and to be treated like this might as well fly American at least they offer water and have better rewards.

Flight was delayed multiple time and for more than 1 hr. My onward flight from BOS to MCI was also delayed. These delays have caused me so much inconvenience and Delta does nothing to ensure flights take off on time. No one knew why the inbound flight was delayed and what was the issue.

The second half of terminal C at Hartsfield was 80 something degrees. I was sweating just sitting at the gate.

Boarding was quick and i made my connection early due to early arrival time

First The flight got delayed because one of the crew members was late and we couldn’t board until she arrived. Then we all boarded and got held in the tarmac for another 30 min.

Flight from Savannah arrived very late and we did not take off till 2 hours after scheduled departure!

No food or drink, Not much conversation with crew. They didn't come through to check on people. There were no charging stations or wifi to watch movies. It was like being on a bus in the air.

This flight was originally delayed by ~45 minutes; which is fine. However, there were additional delays due to late offboarding of the prior flight, unclear issues with the boarding process, delays on the tarmac, and exceptionally long taxiing. None of these issues were communicated proactively. Additionally, the flight had exceptionally rough turbulence, which led to a very uncomfortable flight and no traditional beverage service. Again, this is understandable, but it was not communicated up-front by the flight team.

The food was good. I ate gnocchi with marinara sauce and cheese, salted caramel tiramisu. And later in the trip cheese calzone. I watched 3 movies. The selection is really good. Have new and old movies. The flight attendances were nice and cordially. Overall the 6 hours trip was really pleasant ☺️. Planning the next trip.

The international portion was good. Food and beverage options were good. The sustainable wooden eatery was less than desirable. Your Star Alliance partner ANA provided real silverware. I'm 6'3" & 198 lbs and felt cramped in the exit row. How can that be? Flight attendant all had a pleasant disposition which is always good.

Flight was late to take off Plane broke down Had to move everyone to another plane Told we weren’t going to LGA but Newark Also told we would be taken to NY But United lied and we ended up at Newark at 2 in the morning Horrible experience. And the experience of trying to get compensation from United is just as bad. They could not care less about their passengers Never again!

Flight was late, the only reason I almost missed my flight was that my connection was also late.

Flight be on time would be a good start. Then train your flight attendants to be attentive and friendly. This time they completely forgot my row for the measly snack! United, do better!

United to needs to use their best planes for long flights like Guam to Hawaii with STARLINK on it

I would have preferred a flight voucher and to hop on a different flight. Delayed over 6 hours.

Our flight gor canceled and there was no one to help us but told us to scan the qr code and fill the forms on-line. Very poor service especially we are tourists traveling to Washington DC for the 1st time.

The flight was canceled the day of the flight. United says it was FAA issue, with some 35 flights canceled and more delayed.

Slight delay but not bad. UA app worked well! Got regular updates of gate changes, etc. Don't have any complaints.

If other people in flight, followed instructions and were much cleaner.

This was a great flight. I love the way they had general boarding board from the back first by seat row and in general the flight was very comfortable. The seats were actually comfy, and the food served was surprisingly good.

A seat was broken There was a delay of 45min A checked bag was missing in Boston

The service was some of the worst I have experienced on an international flight. The service was rude, the quality of the food was very low. The speed of service was insanely quick. You couldn’t finish your pretzels before the meal came before the coffee came before trash collection came. Then they never came back for 5 hours. They rushed everything so they could get it over with.

A special shout-out to one of the check-in staff at DUB yesterday noon. We had to use the "Closing Flights" counter and we met, hands down, the most efficient person - able to resolve several issues in the matter of minutes, while remaining polite and calming everyone down. Great job, Aer Lingus!

Everything was great!! I had no problems!! I would fly Aer Lingus again! 🥰

From Rome to Dublin if you want any refreshments you have to pay for them, Not used to this as we typically get soft drinks and a little snack on a 3hour flight in the US.

Boarding was fine, difficult to understand the guy over the speaker though so we were unsure when exactly to board until they updated the monitor by the gate. Flight itself was fine, nice flight attendants, seats were comfortable enough, good selection of entertainment on the screens. Other airlines at a similar price point have included wifi though, at a minimum messaging, for free, so that was a little disappointing to not have that. But otherwise fine. Food was pretty decent, nice hot meal, good drink selection, nice snacks. Bathrooms were ok, could've been cleaned a little more often, but they were never bad.

Vegetarian food option was very poor. Effectively, overcooked rice ("risotto"). Zero protein which is always disappointing with no vegetables and poorly seasoned. Basically had lots of carbs on 6-hour flight. Not acceptable for business class in 2026. Flight was otherwise very good.

Small plane. Tight seating . What can one say except that it was fast!

I sat in the first row behind first class. There was plenty of legroom. The entertainment was great. I saw two excellent movies and one episode of a sitcom. Also enjoyed the flight tracker.

Patrons with larger bags were asked to check the bags when boarding. Seems like the most effective, and least costly way, way to successfully use the cramped space.

Like all planes recently, entertainment is achieved by giving the patron free WiFi and letting them stream shows via the screen on a phone or tablet.

More options on TV shows and movies and make it where if someone wants to choose their seats that it is an easy process. I wanted to choose our seats and never could do that! I even called and they told me I had to do it with agent at the airport. That was very inconvenient

We were treated politely and the crew was nice. Again no one knew why there was a delay. Food was hot and a lot was offered but bad in taste. Seats weren’t the worst but for a long flight your legs ache from it. Entertainment was old not very interactive

I had a comfortable and enjoyable experience. The entertainment options were plentiful, the food was appetizing, the snacks were tasty, and the staff was friendly, professional, and helpful.

This was my first flight on Aer Lingus and it was great. The plane wasn't full so I could move to a seat with extra room. The food was pretty good for airline food and the staff was nice and attentive. I enjoyed the media provided during my 10 hour flight. We arrived home early and it's always good to be home!

WiFi didn’t work for me. as headphones didn’t work either.

Canceled flight for unknown reason after numerous delays and only available flight was the following day yet no compensation. No weather problem. Then had to fill out form to get refund. American used to be a quality airline - no more, very sad!

entertainment choice was excellent for both movies and audio. Food was quite good. Staff was excellent and flight was on time and smooth.

The flight was uneventful, which is always good. The plane was clean and seem to have a little bit more room. They fed us every couple hours, and we had a lot of in-flight entertainment. The staff was very helpful and attentive.

The seats were roomier than other airplanes I’ve been on.

The security line at JFK was one of the longest I’ve ever experienced - probably 45 minutes. I don’t know if JetBlue has control over it, but it detracted from the overall experience. Entertainment had good options, but the volume control was a bit small to tap on and the screen had a fair amount of interference blips. Clearer picture would have been better.

I liked the entertainment on JetBlue, the service from JFK to JAX was terrible at best

Checking-in in Barbados was excellent, connecting in JFK to JAX was a nightmare, had to wait over 1 hour and 20 minutes to receive my check bag. After receiving my checked bag and going to the gate to check in for my flight to Jax the crew there had no clue. They first told me that I had missed the flight and had to rebooked.. after trying to speak with JetBlue reservations (without luck) I was asked to leave my Phone number for a recall, I did so and my call was returned after 15 hours. I finally looked at the information board and saw the flight that I was originally scheduled for was still at the gate. I alerted an JetBlue employee of my findings and was told to rush to the gate and see if I could still board. The agent at the boarding gate apparently was having a very bad day, after lecturing me on how late I was (which was not a fault of mine) let me on the flight. A VERY BAD EXPERIENCE. I will NEVER fly JetBlue ever in my life again.

I usually dont fly JeTBlue and I dont think I will ever do it again. The flight was delayed fee time, nobody was giving us any info at at the airport, gate changing, the slowest and poorly organized boarding ever, rude staff.. huh

The flight was delayed. I upgraded to more room. I can't imagine how small the regular seats are I haven't upgraded for my return flight yet.

The boarding gate experience was good, however they were too exact at checking

Horrible - for the first time in my life i was denied boarding an international flight because the name used on my ticket - Josh - was not exactly the same as my passport - Joshua. At no time during ticketing, online check-in, or at the airport flying from Boston to NY was i notified of a problem. It was only at boarding from NY to Costa Rica I was informed of the problem and by then it was too late. After missing the flight I was told by airport Jet Blue staff, including a supervisor, that it was my problem and they could not assist because i bought "the cheapest fare". i was hung up on twice by JetBlue customer service, including once by a supervisor. I blame Kayak and your awful partner ChatDeal for even allowing me to purchase an international ticket without verifying this - you effectively sold me a ticket i could not use. Shame on you and shame on ChatDeal for doing nothing to help me resolve the situation. What a scam.

Like the variety of entertainment options. One crew member was a little on the rough/rude side. Boarding was a mess, attendants didn't do a great job of helping with the luggage storage and it delayed us a couple of minutes.

Boarding was great, communication from the crew was excellent. My only complaint is the seating seems to have gotten smaller, and felt a bit tight. I can’t imagine doing a long haul flight in those seats.

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.