€233 Find Cheap Flights to the United States

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 28/4. 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.
1 adult
1 adult, Economy, 0 bags

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Flight Deals

Best United States Flight Deals

Cheapest return prices found by our users on KAYAK in the last 72 hours
New York
Newark1 stop€309
Orlando
Orlandodirect€468
Chicago
Chicago1 stop€407
Miami
Miami1 stop€476
Los Angeles
Los Angeles1 stop€444
Boston
Bostondirect€379
San Francisco
San Francisco1 stop€494
Las Vegas
Las Vegas1 stop€501
Washington, D.C.
Washington, D.C.1 stop€412
Seattle
Seattle1 stop€419
Atlanta
Atlanta1 stop€459
Nashville
Nashville1 stop€386
Denver
Denver1 stop€394
Dallas
Dallas3 stops€609
Tampa
Tampa1 stop€455
Honolulu
Honolulu2 stops€897
Philadelphia
Philadelphia1 stop€415
Houston
Houston1 stop€601
Charlotte
Charlotte2 stops€485
New York
Newark1 stop€309
Orlando
Orlandodirect€468
Chicago
Chicago1 stop€407
Miami
Miami1 stop€476
Los Angeles
Los Angeles1 stop€444
Boston
Bostondirect€379
San Francisco
San Francisco1 stop€494
Las Vegas
Las Vegas1 stop€501
Washington, D.C.
Washington, D.C.1 stop€412
Seattle
Seattle1 stop€419
Atlanta
Atlanta1 stop€459
Nashville
Nashville1 stop€386
Denver
Denver1 stop€394
Dallas
Dallas3 stops€609
Tampa
Tampa1 stop€455
Honolulu
Honolulu2 stops€897
Philadelphia
Philadelphia1 stop€415
Houston
Houston1 stop€601
Charlotte
Charlotte2 stops€485

Book Cheap United States Plane Tickets

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for return flights 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 return flight deals to the United States

Thu, 16 Apr - Sat, 25 Apr
Scandinavian Airlines Logo
11:10 - 13:15
DUB
-
EWR
31h 05m
1 stop
Scandinavian Airlines Logo
17:20 - 18:25
EWR
-
DUB
20h 05m
1 stop
€309Scandinavian Airlines
Mon, 13 Apr - Sun, 19 Apr
Scandinavian Airlines Logo
19:50 - 13:15
DUB
-
EWR
22h 25m
1 stop
Scandinavian Airlines Logo
17:45 - 10:25
EWR
-
DUB
11h 40m
1 stop
€312Scandinavian Airlines
Mon, 13 Apr - Sun, 19 Apr
Scandinavian Airlines Logo
19:50 - 13:15
DUB
-
EWR
22h 25m
1 stop
Scandinavian Airlines Logo
17:45 - 10:25
EWR
-
DUB
11h 40m
1 stop
€313Scandinavian Airlines
Mon, 4 May - Mon, 11 May
Aer Lingus Logo
19:50 - 22:00
DUB
-
BOS
7h 10mdirect
Aer Lingus Logo
23:30 - 10:35
BOS
-
DUB
6h 05mdirect
€422Aer Lingus
Fri, 17 Apr - Thu, 23 Apr
Aer Lingus Logo
16:45 - 18:50
DUB
-
BOS
7h 05mdirect
Aer Lingus Logo
17:25 - 04:35
BOS
-
DUB
6h 10mdirect
€426Aer Lingus
Thu, 16 Apr - Sun, 19 Apr
American Airlines Logo
12:40 - 19:47
DUB
-
LGA
12h 07m
2 stops
American Airlines Logo
10:12 - 09:35
LGA
-
DUB
18h 23m
1 stop
€442American Airlines
Tue, 7 Apr - Sat, 18 Apr
American Airlines Logo
11:45 - 23:25
DUB
-
LGA
16h 40m
1 stop
American Airlines Logo
11:14 - 09:35
LGA
-
DUB
17h 21m
2 stops
€443American Airlines
Sat, 23 May - Thu, 28 May
KLM Logo
13:05 - 15:29
SNN
-
JFK
7h 24mdirect
KLM Logo
23:55 - 11:10
JFK
-
SNN
6h 15mdirect
€452KLM
Sat, 23 May - Thu, 28 May
KLM Logo
13:05 - 15:29
SNN
-
JFK
7h 24mdirect
KLM Logo
23:55 - 11:10
JFK
-
SNN
6h 15mdirect
€465KLM
Tue, 7 Apr - Tue, 1 Sep
United Airlines Logo
12:30 - 14:50
SNN
-
EWR
7h 20mdirect
United Airlines Logo
22:50 - 10:15
EWR
-
SNN
6h 25mdirect
€515United Airlines
Booking Insights

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

Get data-powered insights and trends into 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 return 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 Boston, at €356 return. The most popular route is Dublin (DUB) to Newark Airport (EWR) and the cheapest return airline ticket found on this route in the last 72 hours was €403.

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 January, when tickets cost €475 (return) on average. On the other hand, the most expensive months are July and August, when the average cost of round-trip tickets is €800 and €778 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 at night, when retur flights cost €433 on average. Morning departures are around 20% 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 €606.

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 a flight from Ireland to the United States, you should book around 2 weeks before departure, which saves you about 28% compared to booking last-minute. For the absolute cheapest price, our data suggests you should book 22 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 Newark Airport (EWR), with an average flight price of €484.

Good to know

Low seasonJanuary
Cheapest flight€233
Best time to beat the crowds (6% less expensive on average)
Most popular time to fly (18% more expensive on average)
Flight from Dublin to Newark Liberty Airport

FAQs - booking United States flights

  • 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 travellers 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 return 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 when return tickets can be as cheap as €610. On the other hand, the most expensive day to fly is Sunday, when return prices are €725 on average.

Top tips for finding cheap flights to the United States

  • Looking for cheap airfare to the United States? 25% of our users found return tickets to the United States for the following prices or less: From Shannon €574, from Dublin €677
  • Enter your preferred departure airport and travel dates into the search form above to unlock the latest United States flight deals.

Reviews of the top 5 airlines flying 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
KLMOverall score based on 1471 reviews
7.6Comfort
7.8Boarding
7.3Food
8.4Crew
7.1Entertainment
Airline reviews

The crew were unprofessional with a racist element. I was physically abused as well from one of the crew members

2.0 MediocreNewton, Mar 2026
IAD - AMS
Read more KLM reviews

The crew were unprofessional with a racist element. I was physically abused as well from one of the crew members

Crew is not the cheerful type. very slow meal service (this is their style as have flown this many times)

Empty seats next to me - wish it had been for a longer flight!!

I’m grateful for the KLM Air France shuttle bus service to Ottawa. However due to construction and other issues related to the chaotic Uber pickup system at YUL, it’s a challenge to find the Kelios bus service to Ottawa. The signs are not clear or even available. No staff to guide passengers. It’s a stressful experience.

Terrible last row seats many seats available but no offer to move to better seat

They forgot to serve food and the crew was very unfriendly. Never experienced such a bad KLM flight. Usually fly from Toronto. New York was different.

Couldn’t get boarding pass in SLC even with help from a redcoat, so had to find a desk in AMS to get boarding pass. Technical problems so not sure why. Very inconvenient. The KLM app is not as user friendly as most apps. Also had to wait almost an hour on the tarmac for a fuel truck, which caused us to miss a connecting bus in LUX.

The immigration hall in Amsterdam was understaffed, so passport checking was slower than it should be for a major airport. They need to get the automatic readers up and running for non EU passport holders. Waiting in line after a long flight feels a bit abusive.

Over 1 Hr delay. No APU so no AC on ground. Plane was hot during boarding and then they closed the doors over 20 minutes before engine start so interior of plane was steamy hot and stuffy. Could have been helped by opening doors until ready to depart.

Ad experience - been flying many years with them but they are losing out to other carriers with their service and bagage / seating policy. My 2 12-yo kids were not placed with the parent. Absurdity.

Everything was on time and service on the flight was great!

The boarding in Buenos Aires (at the on ramp) was not great. They had to check every carry on. Not a United problem but was a Buenos Aires problem.

Staff and aircraft were good. However, weather in Houston lee to a ground stop. We were looking at circling behind three other planes until the stop was lifted. Pilot said we didn’t have enough fuel for that. So we flew on to New Orleans as the closest port with immigration and customs staff. Landed there and sat in the plane for two hours plus while staff was sorted. Turned away by ICE. Waited for pilots to be switched out, but after they were approved by ICE. Then had to wait to get a runway because so many planes were ahead of us. Finally took off and flew back to Houston. We all missed our connecting flights because it took too long. Hotel voucher from United was only a link to booking site. Total BS. Finally got a flight out the next day after a night without sleep because all the Houston hotels were booked by rodeo and spring break crowds.

Wifi Bluetooth features for watching in flight movie was horrible. Screen kept blacking out no connection of sound although it said connected. Other than that smooth trip .

I paid $7,000 to fly round trip to Porto. I thought it was for business class. But on the leg from Miami to Newark, and again from Newark to Miami, i was in coach. One time in the middle seat of coach. From Newark to Porto I was in business class as expected, and it was fine. I fly to Portugal once per month, often paying $5,000 for business class. Usually i fly American Airlines. I'd be happy to fly more with United Airlines. But my experience was disappointing because i was put in the coach for almost half the flights.

The travel company that you have on your site did me so wrong. I don’t know how it happened, but they put my son‘s name on my plane ticket flying to Vietnam. Along with his birthday. They would not have let me fly from Fort Myers to Ho Chi Minh City. I don’t think that I can ever use your service again. I typed my information into the browser along with my passport number and four days before I’m leaving I have to quickly search another ticket to fly out here.

Seats are uncomfortable. This has been a trend in the industry for decades. Trying to fit more seats on each plane to increase profits at the expense of the passenger.

The flight was delayed so we were dead tired, and after that the turbulence was horrible. I was very scared.

It was okay, the food was good, but after the landing there was not enough time for luggage and security to catch a connection. It was crowded on board.

It’s always a great time flying with united airlines.

All aspects were excellent - it helped that the flight was only 2/3 full and I had no one sitting in my row. The Pre-check (US Passport Control and Customs) in Dublin made everything so easy when we arrived in Chicago.

I love the direct flights. It saves a lot of hassle and allows immigration and customs in Ireland, making arrival much easier.

Great. Has a problem with DOB. Fixed 4 us. Led to a 5 hour earlier flight to London!

One of the best flight experiences I've have had in along time. Would fly with them again.

So, the trip from Dublin to LA did not really happen because the flight took off before we could finish the transfer.

Very nice experience. Flight had good entertainment system and good food options. Customer service was very friendly and nice as well.

Like - the crew were nice Dislike - sitting on the tarmac for long periods after boarding and landing.

I was not admitted to the flight!!! i need a refund for this.

It’s my new favourite airline! Everything was smooth and relaxed!

One of the best flights I've been on in a while. Very genuinely friendly staff. Courteous, kind, respectful. On a past flight (not Aer Lingus) I remember being woken up rudely to put my seat forward. Like a child being berated for something. Oddly jarring experience when someone could just tap you gently on the shoulder and gesture kindly. But I noticed the Aer Lingus staff were incredibly patient with everyone on the plane. It's the holiday season and I noticed a lot more elderly customers on the plane than I typically see flying, and the staff went above and beyond with helping accommodate people. Service throughout the flight was flawless. They came through offering water, and picking up garbage at perfect intervals. Seemed like this flight, everyone was on point. And the flight landed early on top of that

Easy boarding. Rows are smaller but that may be an older and bigger me now :)

It would have been nice if American tried to care.

American Airlines did everything they could with the high Spring Break crowd. I was frustrated to be changed from 1st class to a middle seat at the back of the plane. This has happened before, not sure booking 1st class and paying the extra actually works.

I booked 1st class, my flights were changed and I was sitting in the middle at the back of the plane. A far cry from the 1st class I purchased for my flights. I am grateful I arrived on time.

Movie selections were very limited. Meals were not f So good.

Older airplane with worn out seats. No entertainment system at all. Connecting to Wi-Fi was problematic and hit and miss.

AA is flying sub par aging 787's to Tokyo. I fly other 787's long haul and these are at the bottom. Seats don't work well, tray tables don't work well and were dirty. The flight was great, the plane was not.

There was no beverage service and the only time I saw a crew member walk through the cabin is when we were preparing to land.

Our flight was delayed 3 times and this is why I am giving such low reviews. Everything else was okay but being in the airport at 4:30pm for my initial flight at 7pm to not leave until after 9:30pm is insane,

Flights were constantly delayed. CRW took 50 minutes to get bags

the service on Business class should be improved to be at par with industry leaders like Cathay Pacific and Singapore AIrlines. A lot of room for improvement.

I paid for a very expensive Business Class seat to and from Cairo Egypt from Charleston SC. There was partnership from states to London using American Airlines. That leg was amazing. The British Airlines leg was a joke. They used the standard no leg room 3 by 3 seats. A tray was put on the middle seat. The trip was 5 hours, from London to Cairo, thus my BC purchase. There was no screen proving tv/movie options, only a small device plug. The fold down tray and the bag of peanuts were typical of normal short run flying. The one toilet was located in the galley. We all got to know each other well. This was my first and last trip with British Airlines. I now understand why they would NEVER give me a seat chart so that I could make a selection.prior to departure. It honestly would not have made a difference, there were less than 50% of occupied seats. Apparently everyone got the memo but me. I have never felt so cheated as with that trip, got to so another going back to London, yeah. I will be sending a letter to customer service and asking for a refund. I will be photos comparing the two BC legs. OH, one more thing. The FC ticket holders got bulkhead and exit row seats. I know they had to be thrilled

Late takeoff, but on time landing. Lost bags, 3 days to find them, still in transit to my location. Power outlets broken, Wi-Fi not working, so much for working on the long flight.

Late! Late and late! More than 1hr 30mn. This sucks when it is the last of a 4 flight journey. I missed my dinner! Which is not nice on Valentine’s Day!!! But better than the gate next to us, the poor Chinese people were rebooked to the next day flight. AA had to call security as it became very heated with the passengers! It was a mess at DFW that afternoon/evening. I wish they had some food for the people who travel as part of international journey. Indigo does it in India and it is fantastic.

Good. For a long flight. The comfort of the seat could be better. Also, the food was « normal » plane food. Not indian plane food unfortunately! Everything else was smooth and great.

The seats were comfortable. So many empty seats allowed for stretching out and sleeping. The onboard entertainment was pretty good. The cabin crew were so kind and kept the passengers well- hydrated, and well fed.

We had American Airlines on our return and it was confusing if we were going with Aa or BA I had 2 different flight numbers and didn’t get our gate until it was boarding. So we were a bit nervous as the which it was

Our Jackson, Mississippi to Dallas Fort Worth flight was delayed on 1/19/26.. This was changed to Jackson to Charlotte in the last minute because of this delay. This started some kind of disconnect between American Airlines and British Airways bookings. We could not go past the passport control in London Heathrow. I had to go to the counter and waited for more than 30 minutes to get a new boarding pass. Problems did not end there. Somehow our entire return flight was canceled by someone. I had to make several phone calls over several days to fix the problem – this was not easy from India. Looks like there was some kind of disconnect between two airlines or some agent did not do it right. I’m anxious to know what went wrong.

My touch screen at my seat wasn't working, the films BA advertised on the website for this flight were not available, and the plane was a little dated, food was good and the staff were good, just let down by the aircraft facilities.

Did not like the seating configuration at all with 2+3+2 in business class. Lacking total privacy and comfort

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.