€223 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 2/3. 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€276
Orlando
Orlando2 stops€415
Chicago
Chicagodirect€368
Miami
Miami2 stops€434
Boston
Bostondirect€347
Los Angeles
Los Angeles1 stop€426
San Francisco
San Francisco1 stop€443
Las Vegas
Las Vegas1 stop€417
Washington, D.C.
Baltimore1 stop€344
Seattle
Seattle1 stop€370
Denver
Denver1 stop€328
Atlanta
Atlanta1 stop€874
Nashville
Nashville1 stop€353
Dallas
Dallas3 stops€493
Tampa
Tampa1 stop€423
Houston
Houston2 stops€560
Honolulu
Honolulu3 stops€744
Philadelphia
Philadelphiadirect€321
San Diego
San Diego2 stops€584
New York
Newark1 stop€276
Orlando
Orlando2 stops€415
Chicago
Chicagodirect€368
Miami
Miami2 stops€434
Boston
Bostondirect€347
Los Angeles
Los Angeles1 stop€426
San Francisco
San Francisco1 stop€443
Las Vegas
Las Vegas1 stop€417
Washington, D.C.
Baltimore1 stop€344
Seattle
Seattle1 stop€370
Denver
Denver1 stop€328
Atlanta
Atlanta1 stop€874
Nashville
Nashville1 stop€353
Dallas
Dallas3 stops€493
Tampa
Tampa1 stop€423
Houston
Houston2 stops€560
Honolulu
Honolulu3 stops€744
Philadelphia
Philadelphiadirect€321
San Diego
San Diego2 stops€584

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

Fri, 6 Feb - Mon, 9 Feb
Scandinavian Airlines Logo
18:55 - 13:35
DUB
-
EWR
23h 40m
1 stop
Scandinavian Airlines Logo
17:40 - 10:45
EWR
-
DUB
12h 05m
1 stop
€276Scandinavian Airlines
Thu, 5 Feb - Sun, 8 Feb
Scandinavian Airlines Logo
11:15 - 13:35
DUB
-
EWR
31h 20m
2 stops
Scandinavian Airlines Logo
18:30 - 11:45
EWR
-
DUB
12h 15m
1 stop
€283Scandinavian Airlines
Mon, 16 Mar - Sat, 21 Mar
Scandinavian Airlines Logo
12:30 - 14:35
DUB
-
EWR
30h 05m
2 stops
Scandinavian Airlines Logo
19:30 - 11:20
EWR
-
DUB
11h 50m
1 stop
€284Scandinavian Airlines
Sat, 14 Feb - Tue, 24 Feb
Aer Lingus Logo
16:45 - 18:59
DUB
-
BOS
7h 14mdirect
Aer Lingus Logo
17:10 - 04:15
BOS
-
DUB
6h 05mdirect
€347Aer Lingus
Sun, 1 Feb - Tue, 10 Feb
Aer Lingus Logo
11:40 - 13:55
DUB
-
BOS
7h 15mdirect
Aer Lingus Logo
17:10 - 04:15
BOS
-
DUB
6h 05mdirect
€348Aer Lingus
Mon, 9 Feb - Tue, 17 Feb
American Airlines Logo
11:30 - 18:14
DUB
-
BOS
11h 44m
1 stop
American Airlines Logo
17:15 - 08:40
BOS
-
DUB
10h 25m
1 stop
€354American Airlines
Thu, 5 Feb - Mon, 9 Feb
American Airlines Logo
11:30 - 17:01
DUB
-
BOS
10h 31m
1 stop
American Airlines Logo
18:54 - 08:40
BOS
-
DUB
8h 46m
1 stop
€355American Airlines
Mon, 9 Feb - Mon, 16 Feb
British Airways Logo
11:30 - 17:01
DUB
-
BOS
10h 31m
1 stop
British Airways Logo
08:00 - 08:40
BOS
-
DUB
19h 40m
1 stop
€357British Airways
Sat, 28 Feb - Thu, 19 Mar
British Airways Logo
15:10 - 21:05
DUB
-
JFK
10h 55m
1 stop
British Airways Logo
21:40 - 14:10
JFK
-
DUB
12h 30m
1 stop
€358British Airways
Thu, 7 May - Sun, 10 May
United Airlines Logo
12:30 - 14:50
SNN
-
EWR
7h 20mdirect
United Airlines Logo
22:40 - 10:15
EWR
-
SNN
6h 35mdirect
€536United Airlines
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 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 €351 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 €351.

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 €491 (return) on average. On the other hand, the most expensive months are July and August, when the average cost of round-trip tickets is €782 and €746 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 a flight from Ireland to the United States, you should book around 2 weeks before departure, which saves you about 26% compared to booking last-minute. For the absolute cheapest price, our data suggests you should book 18 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 Orlando Airport (MCO), with an average flight price of €497.

Good to know

Low seasonJanuary
Cheapest flight€223
Best time to beat the crowds (7% less expensive on average)
Most popular time to fly (18% more expensive on average)
Flight from Dublin to Boston

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 €595. On the other hand, the most expensive day to fly is Sunday, when return prices are €694 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 retur flights cost €447 on average. Morning departures are around 13% 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 €578.

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 Dublin €673, from Shannon €856
  • 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.
7.7
KLMOverall score based on 1442 reviews
7.1Entertainment
7.8Boarding
7.6Comfort
8.4Crew
7.3Food
Airline reviews

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.

4.0 OkayShereen, Dec 2025
Read more KLM reviews

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

At the airport, terrible, I do not want to even remember it. It was too humiliating for a business class passenger.

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.

Short flight so it was okay. Nice crew, all very pleasant and professional. We were near the back in row 27 so just as we got our drinks, we started our descent so had to drink very quickly!

KLM remains a quality flag carrier airline which maintains its standards whilst all their competitors are lowering theirs.

Mean flight attendant. I wanted to reuse my plastic cup, but he (Matthew) said he can't for safety. I then said "I don't want water then" and he poured me a glass. I hope Matthew gets herpes and spends the rest of his life poor, lonely, and homeless.

Very good. Because of the delays with my previous flight, I missed my connection, but I was able to book another flight through the United app easily.

It was great. There were some issues prior to takeoff. The weather was poor so we had to go through deicing, and we were delayed a bit by the pilots' concern about one of the engines, but that's aviation. The pilots handled everything with aplomb, and kept us apprised

Reliable, nice crew, I fly often on that flight and I like it all.

I wish there were outlets to charge my iPhone. The crew was great; we had a female pilot who was great with explaining what was happening and delays,

The seats were comfortable and we had leg room. Great entertainment.

The flight crew where really good. Better then the crew from BNE to SFO

Delayed, toilets did not flush, pilot parked to far away from Gate

Was happy we finally got upgraded in 1st class. The seat getting old. The cushiness need some improvement.

Safe made to destination. Late to start at GVA for icy reasons but we fought our next fly.

The entertainment options were at best, fair. It was exactly the same as my outbound flight. It would have been more entertaining if there were some series from Apple TV, HBO, Showtime or other carriers for me to catch up with.

The comfort of Business Class made this trip far more comfortable. I was indeed surprised when I asked one of the flight attendant to help me set up my "bed", she responded that "We don't make beds in Business Class any longer...only First Class" I believe her name was Giselle, but I'm not certain. She did instruct me how to adjust the seat, place the hooded cover and I clearly understood how to place the blanket and the cover. Additionally, the meal I was served (a beef dish) was almost inedible. The beef was tough and odd tasting. I didn't mention it as I was hoping to quickly settle down and try to get some sleep.

Concern Regarding Significant Gate Delay and Jet Bridge Issue Dear Customer Relations Team, I am writing to express my disappointment with the experience I had on my recent flight AA 2414 on Sunday January 18, 2026. What should have been a routine departure turned into a frustrating and avoidable delay due to an issue with the jet bridge at the gate. As a result, the flight was delayed by approximately 90 minutes while multiple gate changes were attempted. The lack of clear communication during this period made the situation even more challenging. Passengers were left uncertain about the cause of the delay, the expected timeline, and the next steps. This not only disrupted travel plans but also created unnecessary stress for everyone on board. I understand that operational issues can arise, but a malfunctioning jet bridge and the resulting extended delay suggest an area where procedures or equipment maintenance may need attention. I hope you will review this incident to prevent similar disruptions in the future. I would appreciate acknowledgment of this concern and consideration of appropriate compensation for the inconvenience and lost time caused by this delay. Thank you for taking the time to review my experience. I look forward to hearing from you. Sincerely, Dion Dillard

They made me pay $40 to check a bag that was listed as free when I bought my ticket. Then before boarding they offered to check any bags free.

When I got to the waiting area, it was full but when the time came to board, rgete was no plane. The women where you would show your ticket, gave the news saying there was a maintenance problem and that it be an extra half hour wait. We never did see the plane but ultimately, Noone ever saw the plane because there was a fire on one engine. Needless to say, the wait time before it was announced what really happened, was a few hours. Many, many missed their plane transfer because they entered their first train. Also, the electronic info panels up on the different wall for all to see the status of each flight, never stated anything having to do with the long, long hold up. Many people had major problems because they had to swith planes during their trip and that never happened...

It was a good trip. Flight Attendants were friendly and responsive.

Qatar airways ,boarding arrangements at Hamid international airport could been better

Crew in Columbia was not prepared for landing. It was a bit of a disaster and getting bags took forever.

My seat tv didn’t work the whole trip. And the seat space is too small despite being seated at the front.

The seat cushions were very worn so they were extremely uncomfortable.

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

Seats are small, but comfortable and more space around you, so for a normal person the seats are perfect. If you are a big and fat individual, I would not think the seats are comfortable. All else was good and normal. Lots of movies to watch.

Customer service was excellent! The app was terrible, tried several times to check in without success! But the young lady that checked us in was absolutely terrific and helpful.

The same as I stated prior. We incurred extra costs that should be reimbursed, given we were not communicated with about schedule changes.

Experience was great overall. However, the connection time between my flights (1hr 15 mins) was too short. We had to get through security check and US immigration in that time, and I made it to the gate just as they were announcing it was about to close. Flights with such a short connection time should maybe not be offered for purchase, or an advance alert would be helpful. Other than that the in-flight experience was excellent, especially the food. Many thanks!

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

The flight crew was kind, flexible, and accommodating. The seats on the plane were extremely uncomfortable.

Check-in experience, for business call please provide a premium experience

Lost my luggage, ran out of food choices in business class, ground crew was completely unapologetic.

Excellent. The crew and flight were great. Checking in was easy and everyone was very helpful.

Entertainment devices on A380 need to be fixed, the seats might do with updates.

Everything. Employees offered to help me because I had to use a cane.

Check-in and boarding were great. On flight staff were rude and disrespectful. Paid for extra room and found it incredibly cramped. Bathrooms kept in poor condition. Overall negative experience.

Great seat in premium economy, great food and drinks throughout lots of in flight entertainment. 1 hour 40 min delayed flying out , 2 1/2 hour wait at passport control in tampa

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.