€236 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 1/5. 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

Search hundreds of travel sites at once for deals on flights to the United States

Travellers love KAYAK
41,299,237 searches in the past 7 days on KAYAK

Track pricesNot ready to book? Create a price alert for when prices drop.

Free to useThere are no hidden charges or fees.

Filter your dealsChoose cabin class, free Wi-Fi and more.

Best United States Flight Deals

Cheapest return prices found by our users on KAYAK in the last 72 hours

New York
New Windsor1 stop€254
Miami
Miami2 stops€363
Orlando
Orlando2 stops€345
Boston
Boston1 stop€249
Chicago
Chicago1 stop€369
Los Angeles
Los Angeles1 stop€404
San Francisco
San Francisco1 stop€414
Las Vegas
Las Vegas3 stops€464
Washington, D.C.
Baltimore1 stop€273
Seattle
Seattle1 stop€390
Atlanta
Atlanta2 stops€339
Denver
Denver2 stops€625
Tampa
Tampa2 stops€507
Dallas
Dallas3 stops€433
Philadelphia
Philadelphia2 stops€449
Houston
Houston2 stops€511
San Diego
San Diego2 stops€522
Nashville
Nashville3 stops€533
Honolulu
Honolulu2 stops€842

Good to know

Low season

January

High season

October

Cheapest flight

€236
Best time to beat the crowds (10% less expensive on average)
Most popular time to fly and prices are also 7% lower on average.
Flight from Shannon to New York John F Kennedy 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.

See more FAQs

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 €568, from Dublin €912
  • Book at least 1 week before departure in order to get a below-average price.
  • High season is considered to be June, July and August. The cheapest month to fly from Ireland is February.
  • Enter your preferred departure airport and travel dates into the search form above to unlock the latest United States flight deals.
See more tips

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 1334 reviews
7.7Comfort
8.4Crew
7.2Entertainment
7.3Food
7.8Boarding
Airline reviews

They only had vegetarian food left on the flight which I wasn’t happy about. I didn’t get any food to eat at all.

2.0 Mediocredale, Feb 2025ACC - AMS
Read more KLM reviews

They only had vegetarian food left on the flight which I wasn’t happy about. I didn’t get any food to eat at all.

Overall very poor. Flight was disorganised, staff were rude and this is my second experience with KLM that I've had baggage go missing. It feels like, if you are an economy customer, KLM staff do not show you any care. I shall never fly with KLM again. Worst airline in Europe

Great boarding, great short flight but no entertainment whatsoever and no wifi. Prepare to disembark by a staircase.

Great boarding, great short flight but no entertainment whatsoever. It was supposed to have wifi but that did not work.

Transfer at CDG to connecting KLM flight to Amsterdam was a NIGHTMARE. LONG WALKWAYS, NO MOVING WALKWAYS, POOR signage, Have to take a train & No staff visible to help navigate the maze. AVOID TRANSFER AT CDG AT ALL COST.

Good flight with KLM, friendly staff. Food was good, had much worse on other airlines. Selection of drinks also good enough for us. Entertainment was also good. The economy seats are ok and that’s it. For a 12 hour flight I think a little more comfort in the economy seats in pitch and softness would be highly appreciated by the customers and can makte the difference.

Good food. Excellent crew service. Clean aircraft. Narrow seats and isle.

I tried to upgrade to premium economy anis seat online during the checkin process. The payment didn’t work due to a technical glitch on KLM’s website. I wasn’t able to change my seat unless I called Amsterdam. Since I was in Canada and there’s a time difference this wasn’t practical. So when I arrived early to Ottawa airport my seat wasn’t available and I could only get a middle seat in premium economy which isn’t great. These middle seats are priced at the same rate as an aisle seat which makes no sense.

The food & entertainment really stood out in terms of quality. The nasi goreng & chicken satay were absolutely delicious. It’s great that KLM feature international cuisine.

Transavia flight. Couldn't select seat or anything prior to flight. No connection with klm systems. Seats are very crammed. Extremely no frills.

The tv monitor in front of my seat was not responding. The flight crew reset it and it still didn’t work.

The agents was very rude and they charged me $50 for a carry-on bag saying that it was too big and then I saw someone going on a plane with the same size bag as me

Terrible. First of all we were delayed 4 3/4 hours departing Honolulu. As we had to leave our condo and the rental car had to be returned we had to go to the airport. Even though we had a business class boarding pass to Washington, since we did not have business class to Montreal we could not access the lounge without paying a $59 fee each. This does not make sense to us. Since we could not meet our original connection United booked us to Montreal via New York LaGuardia on Air Canada. In Washington a further delay got us into LaGuardia too late to make our connection to Montreal so we were booked on another Air Canada flight 3 hours later. We were originally scheduled to arrive in Montreal at 10:40 and arrived at 19:55. A totally exhausting day, United did not offer a meal voucher or any type of compensation. Air Canada did give us a digital meal voucher. The food in United business class is poor among all meals offered. The pods look nice but are not that confortable. Overall would not fly on United again.

Very modern plane. Good seat spacing. Meals were good. Screens had tons of movies and worked

Plenty of room for me and the cat in Premium Economy. Seat was comfortable. Boarding was a breeze. The lady at the special check-in desk was great, super helpful and professional.

For the most part united was a good experience, how ever when they came by with the snacks and water, they completely passed by my wife and I. As we were in separate rows. On a 5 hr flight we were not offered water

Fantastic crew. Flight was delayed at last minute but we were given updates every 20 minutes and the crew was so friendly and considerate. I miss the touch screens on the back of the seats, wish they would bring that back though.

Beijing PEK to SFO. I had an economy seat on this flight. The seat comfort was acceptable. My main complaint is with the FA’s lack of personality and absence from servicing the plane, specifically restroom care (I wish I could share a pic of the restroom that I captured) and care of travelers—drink cart/availability of drinks. I'm amazed at the level of service on other International travel where a passenger is most often appreciated.

Our seats were all the way in back of the plane,

Food choices were very limited. Taste of the dishes was average.

I flew out of Reagan National. My flight was delayed, delayed, delayed, and then canceled ...THREE TIMES over TWO DAYS. Staff were seemingly not empowered to provide information on why the flights were screwed up. A real nightmare.

They cancelled our flight without warning OR a refund. Never doing business with American Airlines again! This is the second AA booked trip in a row that we've had challenges with.

Crew was late. Baggage was late. 2hs inside the plane waiting fro de-icing and traffic. A 3:30hs flight ended up being almost 6hs inside the airplane.

Flight delayed on both ends - have a gate ready at DCA, don't make us sit for 30min after being late to take off as well.

The seats were crammed and the guy in front of me wouldn't stop reclining. If AA is cramming extra rows in, they need to take away the reclining in coach. My knees were smashed for 4 1/2 hours and I was very close to confronting the passenger in front of me.

This flight didn’t happen because AA agents didn’t let us board the flight

It was so bad it will be my last. Connecting flight gate agent closed the door in my face when i told her my husband is 30 seconds away (and we were running close/late because the preceding AA flight was slightly delayed. We had to be rebooked on a non-direct flight with an overnight layover in Phoenix. This is the worst experience ever and for no fault of our own. The flight we were trying to get on would not have been late if the gate agent allowed my husband to get there. It was senseless, cruel and very upsetting. I don’t understand why we were subjected to this.

Flight didn’t get dinner on business. I was starving!

AA can't control the weather. But the airplane was hot and stuffy while stuck on the runway with a broken entertainment system.

Everything was on time, we arrived early, everything worked well.

Gate agents kind of serious. Had to wait til arriving at gate to choose seats. Thankfully they did give us seats together! And grateful the honored our age, giving us seats at the front.

Very polite and helpful staff. Jet blue…ok, but not as helpful!..

Seat was very uncomfortable. The worst in all of my travels. It sagged in the middle, worse than anything any airline can offer. Not flying aer lingus again.

This flight was delayed and caused me to miss my connecting flight from New York to Boston. I had to rent a car and drive myself home to avoid waiting another 5 hours in the airport.

My Aer Lingus flight (booking ref # 2SU4LF) was the worst travel experience I have ever dealt with. My flight from Paris to Dublin was delayed by over 2 hours which caused me to miss my connecting flight back to the US. I was not able to be rebooked on a new flight for another 3 days. When I finally made it on my rescheduled flight, it was delayed AGAIN, causing me to miss my connecting flight from New York to Boston. At this point I decided to just rent a car since the next flight I would have been able to get in wasn’t for another 5 hours. It was a complete nightmare experience and I will never fly Aer Lingus again. I have requested a refund from the booking company I placed my order with.

Flight was cancelled. There were no Aer Lingus reps to help. I had to rebook my flight and find a hotel. Still had nothing from the airline.

There was a very drunk and disruptive passenger who was on the plane, right behind me. He was already drunk before boarding but was still let on the plane. He kept kicking and hitting the back of my chair the entire flight. It was an early morning flight and had zero rest on that leg

Really lovely trip and flight. The flight staff were so accommodating and warm throughout!

Friendly crew who apologised and explained reason for delay. Good on board service. Rather cramped seating. Late departure.

Was not aware that Aer Lingus was like the cut-rate services in the states, with no food or beverage (other then 3.50 Euro coffee) and no screens for entertainment. Was a great flight, but not much in the way of services.

They did not provide free WiFi, It could be purchased for, I think, around $25, This seemed excessive.

Less than average, low level of shared required information needed during the transfer from airport to another, also the used team during boarding In Indianapolis station is Not Professional

Reliable, great value, but not outstanding in any aspect. This is similar to the experience you get in most international carriers like Etihad or Delta.

Flight got diverted because of an emergency and the crew were fantastic and probably saved that passenger’s life. While in emergency landing some measures could have been taken to prevent additional delays. In general not great experience with BA. I used to fly BA years ago all the time, very disappointed by the whole experience, seats were tight, bathrooms tight.

Business class area too small and chair and equipment not comfortable .

Lost my luggage in London Was double charged for luggage

Boarding could have been better organized. The one member of staff disappeared for a while so boarding by group relied on honesty.

I never made this flight but the staff helped to get me rebooked (see previous review)

No land services during boarding, specially while moving from terminal to another

Even the carry-ons were not allowed and upon getting down, we had the wait for the longest time for the baggage to put on the jet aisle. We had a short connection which British Airways kept changing and made out entire experience poor. I would never fly BA again.

Book Cheap United States Plane Tickets

Recent return flight deals

24/3Mon
2 stopsScandinavian Airlines
54h 05mDUB-EWR
31/3Mon
1 stopScandinavian Airlines
12h 25mEWR-DUB
€293
7/3Fri
2 stopsScandinavian Airlines
32h 10mDUB-EWR
9/3Sun
1 stopScandinavian Airlines
11h 50mEWR-DUB
€296
27/3Thu
1 stopKLM
10h 55mDUB-JFK
31/3Mon
directKLM
6h 50mJFK-DUB
€403
3/3Mon
1 stopKLM
12h 12mDUB-JFK
10/3Mon
1 stopKLM
10h 30mJFK-DUB
€407
1/3Sat
1 stopBritish Airways
11h 30mDUB-EWR
5/3Wed
1 stopBritish Airways
9h 35mEWR-DUB
€408
1/3Sat
1 stopBritish Airways
11h 30mDUB-JFK
5/3Wed
1 stopBritish Airways
9h 55mJFK-DUB
€408
3/3Mon
directAer Lingus
8h 00mDUB-EWR
9/3Sun
directAer Lingus
6h 25mEWR-DUB
€431
3/3Mon
directAer Lingus
8h 00mDUB-EWR
9/3Sun
directAer Lingus
6h 25mEWR-DUB
€434
3/3Mon
1 stopUnited Airlines
11h 36mDUB-EWR
9/3Sun
1 stopUnited Airlines
11h 15mEWR-DUB
€458
28/2Fri
1 stopUnited Airlines
10h 54mDUB-LGA
5/3Wed
1 stopUnited Airlines
9h 36mLGA-DUB
€459

Search by stops

Search by airline

Search by price

Recent one-way flight deals

1/5Thu
2 stops
34h 15mSNN-JFK
€236
15/5Thu
1 stop
22h 25mDUB-JFK
€245
8/3Sat
2 stopsAer Lingus
25h 25mSNN-JFK
€326
8/3Sat
2 stopsAer Lingus
27h 45mSNN-EWR
€326
25/3Tue
1 stopBritish Airways
30h 20mDUB-LAS
€518
5/6Thu
directKLM
7h 10mSNN-JFK
€541
27/5Tue
directBritish Airways
9h 39mDUB-SEA
€550
14/8Thu
directKLM
7h 25mSNN-JFK
€681
23/2Sun
1 stopUnited Airlines
10h 54mDUB-LGA
€885
14/6Sat
3 stopsUnited Airlines
34h 54mDUB-MIA
€971

Search by stops

Search by airline

Search by price

Last minute flights to the United States

Last minute flight, train and bus deals

20/2Thu
multi-stopScandinavian Airlines
30h 05mDUB-EWR
20/3Thu
multi-stopScandinavian Airlines
13h 00mEWR-DUB
€459
20/2Thu
multi-stopScandinavian Airlines
30h 05mDUB-EWR
26/2Wed
multi-stopScandinavian Airlines
11h 55mEWR-DUB
€460
20/2Thu
multi-stopBritish Airways
11h 25mDUB-JFK
24/2Mon
multi-stopBritish Airways
10h 05mJFK-DUB
€520
21/2Fri
multi-stopBritish Airways
12h 00mDUB-JFK
24/2Mon
multi-stopBritish Airways
10h 00mJFK-DUB
€522
23/2Sun
multi-stopUnited Airlines
17h 32mDUB-LAS
2/3Sun
multi-stopUnited Airlines
13h 02mLAS-DUB
€534
23/2Sun
multi-stopUnited Airlines
18h 22mDUB-LAS
2/3Sun
multi-stopUnited Airlines
13h 02mLAS-DUB
€537
23/2Sun
directAer Lingus
11h 10mDUB-LAX
2/3Sun
directAer Lingus
10h 15mLAX-DUB
€596
20/2Thu
directKLM
7h 51mDUB-JFK
24/2Mon
directKLM
6h 25mJFK-DUB
€609
20/2Thu
multi-stopKLM
12h 27mDUB-JFK
23/2Sun
directKLM
6h 25mJFK-DUB
€610
20/2Thu
directAer Lingus
10h 30mDUB-LAS
1/3Sat
directAer Lingus
9h 35mLAS-DUB
€618

Search by stops

Search by airline

Search by price

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.

Not what you’re looking for? Find thousands of other hotels, flights, car hires and package deals with KAYAK.