€241 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 30/9. 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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Booking Insights
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€326
Orlando
Orlando1 stop€501
Boston
Bostondirect€416
Miami
Miami1 stop€496
Chicago
Chicago1 stop€515
Los Angeles
Los Angeles1 stop€529
San Francisco
San Francisco2 stops€539
Washington, D.C.
Baltimore1 stop€462
Las Vegas
Las Vegas1 stop€485
Seattle
Seattle1 stop€496
Dallas
Dallas1 stop€674
Nashville
Nashville1 stop€422
Atlanta
Atlanta1 stop€498
Denver
Denver1 stop€461
Tampa
Tampa1 stop€492
Philadelphia
Philadelphiadirect€464
Honolulu
Honolulu3 stops€796
Houston
Houston1 stop€579
Charlotte
Charlotte2 stops€670
New York
Newark1 stop€326
Orlando
Orlando1 stop€501
Boston
Bostondirect€416
Miami
Miami1 stop€496
Chicago
Chicago1 stop€515
Los Angeles
Los Angeles1 stop€529
San Francisco
San Francisco2 stops€539
Washington, D.C.
Baltimore1 stop€462
Las Vegas
Las Vegas1 stop€485
Seattle
Seattle1 stop€496
Dallas
Dallas1 stop€674
Nashville
Nashville1 stop€422
Atlanta
Atlanta1 stop€498
Denver
Denver1 stop€461
Tampa
Tampa1 stop€492
Philadelphia
Philadelphiadirect€464
Honolulu
Honolulu3 stops€796
Houston
Houston1 stop€579
Charlotte
Charlotte2 stops€670

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, 5 Nov - Thu, 12 Nov
Scandinavian Airlines Logo
10:55 - 13:25
DUB
-
EWR
31h 30m
1 stop
Scandinavian Airlines Logo
17:40 - 18:10
EWR
-
DUB
19h 30m
1 stop
€326Scandinavian Airlines
Thu, 12 Nov - Thu, 26 Nov
Scandinavian Airlines Logo
10:55 - 13:25
DUB
-
EWR
31h 30m
1 stop
Scandinavian Airlines Logo
18:30 - 10:10
EWR
-
DUB
10h 40m
1 stop
€328Scandinavian Airlines
Tue, 23 Jun - Mon, 29 Jun
Aer Lingus Logo
19:50 - 22:00
DUB
-
BOS
7h 10mdirect
Aer Lingus Logo
17:25 - 04:35
BOS
-
DUB
6h 10mdirect
€439Aer Lingus
Fri, 9 Oct - Sat, 17 Oct
Aer Lingus Logo
19:45 - 22:25
DUB
-
JFK
7h 40mdirect
Aer Lingus Logo
21:05 - 08:50
JFK
-
DUB
6h 45mdirect
€440Aer Lingus
Thu, 11 Jun - Sun, 14 Jun
KLM Logo
05:55 - 12:25
DUB
-
JFK
11h 30m
1 stop
KLM Logo
21:20 - 09:15
JFK
-
DUB
6h 55mdirect
€441KLM
Thu, 11 Jun - Sun, 14 Jun
KLM Logo
05:55 - 12:25
DUB
-
JFK
11h 30m
1 stop
KLM Logo
21:20 - 09:15
JFK
-
DUB
6h 55mdirect
€442KLM
Sun, 15 Nov - Tue, 24 Nov
American Airlines Logo
11:30 - 20:20
DUB
-
LGA
13h 50m
2 stops
American Airlines Logo
10:45 - 07:15
LGA
-
DUB
15h 30m
1 stop
€451American Airlines
Mon, 16 Nov - Mon, 23 Nov
American Airlines Logo
13:00 - 23:33
DUB
-
LGA
15h 33m
1 stop
American Airlines Logo
09:00 - 07:15
LGA
-
DUB
17h 15m
1 stop
€452American Airlines
Fri, 12 Jun - Thu, 27 Aug
United Airlines Logo
12:30 - 14:55
SNN
-
EWR
7h 25mdirect
United Airlines Logo
11:15 - 07:30
EWR
-
SNN
15h 15m
1 stop
€626United Airlines
Fri, 16 Oct - Tue, 20 Oct
United Airlines Logo
12:30 - 14:55
SNN
-
EWR
7h 25mdirect
United Airlines Logo
22:50 - 10:15
EWR
-
SNN
6h 25mdirect
€627United 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 Newark Airport, at €367 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 €367.

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 €465 (return) on average. On the other hand, the most expensive months are August and July, when the average cost of round-trip tickets is €846 and €838 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 €455 on average. Morning departures are around 32% 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 €612.

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 33% 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 New York John F Kennedy Intl Airport (JFK), with an average flight price of €397.

Good to know

Low seasonJanuary
Cheapest flight€241
Best time to beat the crowds (8% less expensive on average)
Most popular time to fly (23% more expensive on average)
Flight from Dublin to Newark Liberty Airport

Flights to the United States: the best tips from KAYAK users' own experiences

Insights shared by verified travellers who flew to the United States 
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 - 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 €614. On the other hand, the most expensive day to fly is Sunday, when return prices are €726 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 Dublin €688, from Shannon €702
  • 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 1524 reviews
7.7Comfort
8.4Crew
7.3Food
7.8Boarding
7.2Entertainment
Airline reviews

As per usual when you Hit the UK it's a slow process through customs Not as efficient at Thailand for sure

10.0 ExcellentDiane, Apr 2026
AMS - HUY
Read more KLM reviews

As per usual when you Hit the UK it's a slow process through customs Not as efficient at Thailand for sure

There were no charge points for phones on the economy seats. The seats were comfortable overall. Food was okay.. flight was on time

The flight was delayed. The aircraft was unclean. Promised seat was not given due to change in Aircraft. Not one crew on ground was in a position to give any response. Amsterdam Airport is AVIODABLE Over crowded. Over Expensive. Poor Services.

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.

These airplanes should be illegal. The seats are two tight, it is a safety issue. Wheelchair support was ridiculously slow. We almost missed our flight.

It was a short flight so I was expecting too much

Horrifying Almost 2 million miles. Bring your own food and drink. One coffee or drink every three hours. Have to order meals on app more than 24 hours ahead Tiny and dirty bathrooms

Flight was delayed but more than 90 minutes. This caused me to miss my available windows for pick-up by a friend. I had to pay $125 for an uber back home from the airport which was an added expense that I had not budgeted for my trip. Staff was friendly.

Uncomfortable plastic seats even in premium economy. No free wifi. Even paid wifi was spotty to nonexistent. Bad food. Much worse than economy on foreign carriers like Qantas.

How can you rate a flight when it is canceled after you leave the gate & 3 hours into sitting there or in remote area of airport after mechanical problems

Seat pitch is horrible especially on the 15 hour flight. Gate crew at SFO was Outstanding. The flight crew was also great.

Had a one hour delay due to mechanical issue. I didn’t think I’d be able to make my connecting flight, but they waited for me and greeted me when I arrived to help things run smooth.

Broken tray table. Erratic service. Premium economy is more economy than premium- other airlines treat PE much better. No lounge access.

6 1/2 hours from Tampa to SFO on a Boeing 737. Cramped. No Service. No real food. One pass for coffee at the beginning and a second pass THREE hours later. And check-in in Tampa was nasty even by United standards. And I am at almost TWO million miles on United. It's a non-stop. But terrible service.

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.

OK overall. Flight was delayed Crew on flight was good

On time, only a little turbulence, very competent and caring attendants. Clear information.

Late late late. Delayed and arrived an hour late for a 1 hour 45 minute connection. Every time. Poor record for this company. I try to fly any other carrier first.

The flights are literally always delayed arriving, boarding and taking off so they are always late for the connection. I planned ahead so I was okay but many others aren't. The food was terrible. The staff was very pleasant. I appreciate boarding back to front.

The crew was friendly. The plane was comfortable. In-flight wifi didn't work well at all. The ride was quite turbulent but understandable given the weather.

My issue is with the SkyWest terminal. The flight was not listed on the main airport flight screen list, and I had to do a Google search to locate the terminal and gate. We had to ask several airport employees where to locate the phantom gate. The airport did not provide adequate signage and was confusing. When we arrived, there was one vendor providing services that quickly closed, leaving zero options for food and drink while we waited hours for our delayed flight. The crew that assisted with check-in and boarding was VERY friendly.

Economy seats a bit small but other than that it was all good.

No complimentary drinks or snacks offered on a 2 hour flight was disappointing but everything else went well

Was put into a seat right behind the toilet that had no entertainment possible but did have plenty of leg room over noisy part of plane.

The passport line was so long that many of us were concerned about missing our flight and some did. It would've helped if a AA representative had gone to the passport check-in sooner to advise that boarding was closing and those flying that were stuck back in the line, needed to come forward with apologies to others. An AA representative did do that but only after boarding had already closed. (They delayed take-off so that more who were running with carry-ons could get to the gate - especially stressful for older people!) Then to be crammed into a seat with barely enough leg room for a thin woman, 5'7", like me, much less for a taller, bigger person was not comfortable, especially if the person in front decided to lean back. Crew was fine, food and entertainment also.

Movies on my phone are great. It would be nice to have a gluten free snack option.

It was what i expected. I like the movies you can access from your phone. It would be nice if there was a gluten free snack offered. But I did bring my own snack knowing there would not be a gluten free option

The flight was peaceful, just s slight turbulence, pilots and crews were all nice and made a great job! Arrived safely in the Philippines. Thank you ya’ll!

Ontario airport boarding was very easy to park and access, is clean and TSA took 10 minutes total. Check-in was a breeze and cruise was very nice.

American Airlines II: Delay Boogaloo. Multiple gate changes, delays, boarded and then MORE delays. I hate to say this won’t matter, but posting stuff about major corporations in 2026 is a post-modern “scream into the void.” Was multiple hours late coming home, so there you go.

Awful, tons of delays, I got into Chicago multiple hours late meaning I hit the very traffic I tried so desperately to avoid. Just empty apologies from American Airlines text alerts. Trash behavior from a trash airline.

The flight attendants were very friendly, efficient, and helpful. The plane was ahead of schedule, and it all went very smoothly. Thank you.

They lost my baggage and I am still struggling to the information and update

Cheap Flight Fares would not provide booking info. I canceled the reservation and we arbitrated with American Express. They provided erroneous info to Amex and it was determined that C.F.F. deserved the price of the ticket. Worse experience I've ever had.

Seating space is appalling. Seats and all surrounding area in "Economy" is built for individuals shorter than 4' 10" and below 120 lbs. Ridiculous. While I'm not expecting fine dining, the food was the worst airplane food that I can recall.

My luggage was lost at the airport but American Airlines contacted me and got it to me the next day.

Business class lounge for my gate was closed and no email was sent, causing me to walk back and forth to different gates, etc for over 20 minutes one way. Flight entertainment was mediocre with very poor choices especially for business class cabin. Original flight was cancelled and rebooking was difficult and no reason given for cancellation.

Very comfortable flight and simple and directed one way and back. Amazing price.

We loved our flight attendant, Emma from Scotland, the meal and entertainment offerings were wonderful, the flight was smooth, and enough leg room to stretch. We would fly with you again!

Los Angeles to London. 25th of April 2026. Business class. I was flying backwards with a complete stranger snoring next to me. In Business class. Males and females, strangers lying next to each other. Seats were backwards. I paid for comfort. I got dizziness and stress.

24 hour delays aren’t even heard in 3rd world countries with archaic transportation systems. I’m never flying American Airlines again.

Long line with check in at the DIA British Airway counter.

The flights were on time. Cabin crew were nice. The food was terrible! Checking in was not easy using my phone.

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.