$202 Find Cheap Flights to Ireland

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from the United States to Ireland departing on 3/9. 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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Cheap Flights to Ireland

Cheapest round-trip prices found by our users on KAYAK in the last 72 hours
Dublin
Dublinnonstop$350
Shannon
Shannonnonstop$393
Cork
Cork1 stop$393
Knock
Knock2 stops$637
Donegal
Donegal1 stop$663
Dublin
Dublinnonstop$350
Shannon
Shannonnonstop$393
Cork
Cork1 stop$393
Knock
Knock2 stops$637
Donegal
Donegal1 stop$663

Book Cheap Ireland Plane Tickets

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights to Ireland 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 to Ireland

Mon, Mar 9 - Tue, Mar 17
KLM Logo
10:15 pm - 8:45 am
JFK
-
DUB
6h 30mnonstop
KLM Logo
10:45 am - 2:18 pm
DUB
-
JFK
7h 33mnonstop
$350KLM
Fri, May 1 - Sun, May 10
Icelandair Logo
8:25 pm - 1:15 pm
EWR
-
DUB
11h 50m
1 stop
Icelandair Logo
12:15 pm - 7:15 pm
DUB
-
EWR
12h 00m
1 stop
$350Icelandair
Mon, May 4 - Tue, May 12
Icelandair Logo
11:10 pm - 1:15 pm
JFK
-
DUB
9h 05m
1 stop
Icelandair Logo
2:15 pm - 7:20 pm
DUB
-
JFK
10h 05m
1 stop
$351Icelandair
Wed, Apr 22 - Fri, May 8
JetBlue Logo
9:02 pm - 8:20 am
BOS
-
DUB
6h 18mnonstop
JetBlue Logo
10:40 am - 12:39 pm
DUB
-
BOS
6h 59mnonstop
$354JetBlue
Sun, May 3 - Fri, May 8
JetBlue Logo
9:02 pm - 8:20 am
BOS
-
DUB
6h 18mnonstop
JetBlue Logo
10:40 am - 12:39 pm
DUB
-
BOS
6h 59mnonstop
$356JetBlue
Wed, Mar 4 - Mon, Mar 16
United Airlines Logo
6:00 am - 10:20 am
LGA
-
DUB
23h 20m
1 stop
United Airlines Logo
8:00 am - 10:43 am
DUB
-
LGA
30h 43m
1 stop
$373United Airlines
Tue, Apr 21 - Tue, May 5
Aer Lingus Logo
8:25 pm - 8:15 am
PHL
-
DUB
6h 50mnonstop
Aer Lingus Logo
4:10 pm - 6:55 pm
DUB
-
PHL
7h 45mnonstop
$473Aer Lingus
Wed, May 6 - Wed, May 13
American Airlines Logo
7:35 pm - 12:05 pm
PHL
-
DUB
11h 30m
1 stop
American Airlines Logo
10:30 am - 4:40 pm
DUB
-
PHL
11h 10m
1 stop
$475American Airlines
Tue, Aug 11 - Wed, Aug 19
Aer Lingus Logo
8:25 pm - 8:15 am
PHL
-
DUB
6h 50mnonstop
Aer Lingus Logo
4:10 pm - 6:55 pm
DUB
-
PHL
7h 45mnonstop
$480Aer Lingus
Wed, Apr 8 - Fri, Apr 17
American Airlines Logo
3:10 pm - 9:40 am
DFW
-
DUB
12h 30m
1 stop
American Airlines Logo
9:30 am - 1:15 pm
DUB
-
DFW
9h 45mnonstop
$501American Airlines
Booking Insights

KAYAK's insights & trends for flights to Ireland

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

What is the cheapest flight to Ireland?

These are the best round-trip prices found by users searching on KAYAK in the last 72 hours.

The cheapest ticket to Ireland from the United States found in the last 72 hours was to Dublin, at $350 round-trip. The most popular route is Atlanta (ATL) to Dublin (DUB) and the cheapest round-trip airline ticket found on this route in the last 72 hours was $350.

How much is a flight to Ireland?

The average and cheapest price for all round-trip flights to Ireland from each origin found by users searching on KAYAK in the last month.

A flight to Ireland costs $592 on average. The cheapest price found on KAYAK in the last 2 weeks was $219 for the route Las Vegas (LAS) to Dublin (DUB). The most popular routes on KAYAK are Boston to Dublin which costs $625 on average, and New York to Dublin, which costs $573 on average.

See prices from:

What is the cheapest month to fly from the United States to Ireland?

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for flights from the United States to Ireland, 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 the United States to Ireland is January, when tickets cost $602 (return) on average. On the other hand, the most expensive months are June and May, when the average cost of round-trip tickets is $1,053 and $929 respectively.

How far in advance should I book a flight from the United States to Ireland?

To calculate weekly average prices, KAYAK takes all prices for each week before departure over the last year for round-trip flights to Ireland, 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 the United States to Ireland, you should book around 3 weeks before departure, which saves you about 21% compared to booking last minute. For the absolute cheapest price, our data suggests you should book 19 weeks before departure.

Which is the cheapest airport to fly into in Ireland?

Prices will differ depending on the departure airport, but generally, the cheapest airport to fly to in Ireland is Dublin Airport (DUB), with an average flight price of $449.

Good to know

Low seasonJanuary
Cheapest flight$180
Best time to beat the crowds with an average 17% drop in price.
Most popular time to fly and prices are also 10% lower on average.
Flight from Chicago O'Hare Airport to Dublin

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

Insights shared by verified travelers who flew to Ireland 
LisaFlew with Aer Lingus
BOS
-
DUB
Dec 2025
Look at Jet Blue and Delta. May be a bit more expensive but keep an eye out for fare reductions and book early.
Mary MargaretFlew with Aer Lingus
IAD
-
DUB
Jun 2025
Some people may be required to check their carryon bags, depending on flight, plane size, check-in crew, etc. Also, taller people should purchase aisle seats.
Verified travelerFlew with Aer Lingus
BOS
-
DUB
Jul 2025
Whatever airline you choose, spring for a class with more leg and overall body room than economy (or whatever the cheapest class is called).
himanshuFlew with Aer Lingus
EWR
-
DUB
Jun 2025
Eat and drink before boarding. Snacks. Hand gel and surface wipes . Don't expect a window if in a window row.
BarbaraFlew with Aer Lingus
BOS
-
DUB
May 2024
Pack what you need in a carryon since it is likely you'll arrive without luggage.

FAQs - booking Ireland flights

  • How does KAYAK find such low prices on flights from the United States to Ireland?

    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 the United States to Ireland.

  • How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from the United States to Ireland?

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight from the United States to Ireland 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 the United States to Ireland?

    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 the United States to Ireland 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 the United States to Ireland?

    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 the United States to Ireland 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 Ireland?

    Based on KAYAK data, the cheapest day to fly to Ireland is Wednesday where round-trip tickets can be as cheap as $677. On the other hand, the most expensive day to fly is Friday, where round-trip prices are $760 on average.

  • What is the cheapest time of day to fly to Ireland?

    The cheapest time of day to fly to Ireland is generally at night, when round-trip flights cost $779 on average. The most expensive time of day to fly to Ireland is generally in the evening, which is peak travel time and where the average cost of a ticket is $812.

Top tips for finding cheap flights to Ireland

  • Looking for cheap airfare to Ireland? 25% of our users found round-trip tickets to Ireland for the following prices or less: From Newark $780, from Washington, D.C. Dulles Intl $980, from Boston $1,080
  • Enter your preferred departure airport and travel dates into the search form above to unlock the latest Ireland flight deals.

Reviews of the top 5 airlines flying to Ireland

 
Need help choosing which airline to fly with from the United States to Ireland? 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.
7.9
DeltaOverall score based on 8246 reviews
7.9Comfort
8.5Crew
7.2Food
8.1Boarding
7.8Entertainment
Airline reviews

Flight was warm for first few hours and quite rough

6.0 GoodZachary, Feb 2026
SLC - DCA
Read more Delta reviews

Flight was warm for first few hours and quite rough

Seat was extremely hard which made even a short 1 hour 20 minute flight fairly uncomfortable.

Everything was good except wifi and a leaking drink chiller. The floor was all wet and my bag was soaked. Did not notice until debarking. Have not heard back from Delta. Even though this was leg one of an international flight in first class, they denied access to their Sky Club - very disappointing!

The staff was fine. The plane was extremely tight, and I paid for the wifi and it did not work at all. I was actually going to ask for a refund.

two hour delay and the Delta representative on the PA system was unable to understand

An awesome flight crew. FC seat cushion just doesn’t cut it for a 3+ hour flight.

2+hrs delay without any reason provided and a cramped flight

We waited an hour on the runway to get a gate in Orlando

Flight was delayed by 3-hours and their fix was… complimentary pretzels.

Flight was delayed due to crew being not on time

There was no WiFi available, there were mechanical problems with the plane and we landed at C 124, then the gate was switched to A 26, then all the way back to C126! For a 75 yo woman traveling alone, this was a difficult journey, indeed!

This trip did not start off well. The inbound flight was delayed about 20 minutes. Then, after initial onboarding, the passengers had to deplane due to a mechanical problem. That took about 30 minutes to fix and be cleared. Then, reboarding was chaotic. It took a long time to sort passengers and two passengers on standby were ticketed but there was no seat. So, they had to deplane. One of the flight crew was trying to help passengers figure out a place to put their carry-on bags and that took more time. In the end, our scheduled 10:30 am departure did not actually take off until about 12:05 pm CST. The flight itself was long but we got to Houston. Some passengers missed their connecting flights and had to rebook. Not the best of flights I've had.

Staff were good. My seat was in need of repair, but for a short flight was not problematic. Usual basic snack and drink setup that you'll find on any US carrier. Over, a decent, basic flight.

Complimentary light meal would be appreciated. But great flight crew service on all legs

Terrible because it was cancelled due to volcanic ash clouds in Guatemala while all other airlines kept flying. Had to pay for a hotel to stay overnight in Houston and try to fly next day.

Flight delayed for more than 16 hrs and no effort was spent to provide an alternate

We got delayed three hours and nobody thought to have the bathroom fixed while we were sitting waiting to board? took a full hour to have maintenance come and check it off. Had to shut the bathroom down twice so that the pilots could go to the bathroom. Everyone missed their connections.

Flight left on time and we arrived 25 minutes early! There was a gate available when we arrived so early on a busy Sunday afternoon! Flight attendants came around twice with the drinks cart.

Wonderful. Quick boarding. Early departure and we arrived 30 minutes early at our destination. Unfortunately, when you arrive early, there is still a departing aircraft at our gate. We had to park for 30 minutes until the gate was clear. So our early arrival was not really early at the gate. Otherwise it was a quick and smooth flight. Appreciated the efficiency.

Flight on time. Excellent service in Premium Economy. Great food served and cleaned up promptly. Unfortunately the climate control was malfunctioning and it was very cold and felt a bit like camping. Cold helps with sleep though so not complaining too much. Slept well. It asks to rate "entertainment". I do not like any IFE, don't shove a big screen in my face—I have my own phone if I want it. So this will always get low ratings.

Mediocre would be best description. Food bland. Seat biz class uncomfortable to sleep. Crew never dimmed lights completely in an overnight flight to Europe. Would avoid AA if possible.

For my arriving destination, we were delayed multiple times to the point that we arrived 6 hours after we were originally scheduled. On my flight home, they overbooked and involuntarily removed passengers (including me) from the plane. It was not a good experience.

It was good experience this time. The flight was on time.

I very rarely fly American and my experience today reenforces that is the correct decision. While the staff were all very courteous, our flight was first thing in the morning so there was no reason to be delayed, yet appropriate maintenance checks weren’t completed prior to our flight so we were delayed multiple times. Not a great showing, American Airlines.

It's very confusing because Kayak has it as American Airlines, but it was Hawaiian Airlines, but operated by Alaska Airlines. I had to go to the airport for my boarding pass because American said I didn't have any trips.

Smooth flight. From the early boarding and all were on board before departure time and arrived early in ONT. Great crew. Thank you!!!!

Small plane, poor meal choices for first class, bad terminal and boarding experience at LAX

Lack of gluten free options in food service. I have Celiac disease and it appears you no longer offer special meals for people with dietary restrictions. I am a frequent flyer traveling into and out of Omaha airport. I have noticed over the course of several months that although our flight typically arrives ahead of schedule (awesome job AA!) - we typically sit on the runway for several minutes waiting for the ground crew to get in place. Not sure if it is a ground crew issue or a gate availability issue (due to construction at this airport). Seems to be more of a ground crew being on time issue.

Arrived early picked up my bag in a few minutes- great trip - thank you

Flight boarded, departed and landed on time. Excellent service from flight attendant in FIRST

I had a great experience. I would definitely use them again

The pre-check (passport control) for all US flights from Dublin airport is brilliant, meaning these flights come into the domestic airport in the US - it was so quick and easy getting to my hotel once we landed. The plane itself was great, staff were lovely and food was fine.

Punctual, smooth flight. Crew excellent and cabin very clean. Paid for WiFi but once you close out you cannot get back in even if you paid for entire flight.

Flight crew was superb. Meal was one of the meals at altitude I’ve had

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

Like getting a bus. No great luxury but will get you there

Got us to destination alive, albeit a bit late. Luggage was left behind. No live tracking app available (available on some other airlines). Supposedly going to be delivered in next couple of days.

The trip was mostly nice, till the last moment when they had some issue with opening the flight door. The flight arrived late by 10 minutes, which was ok-ish, but then we got stuck on the plane for 35 minutes at the bridge and that costed our connection flight to LAX which left with 12+ passengers still on our flight. It added 2 days to our trip home, and we had to make lots of rearrangements to deal with the ripple effects. Don't book a 1+ stop trip with a layover time less than 2 hours.

My seat was broken. No sound available and the armrest between my wife and I was broken so it could only fold halfway up. Seats were a big close together so they felt a bit claustrophobic. Boarding was a little frustrating in Dublin as there is not sufficient room to actually queue up. Boarding was also frustrating for people behind me who were unable to use the overhead due to people abusing the privilege and putting more than one item each up there. Staff was friendly and helpful to those people.

The staff was amazing, so friendly and responsive. Check in was tedious as the online service was not available and the desk understaffed. It took a full hour in line to check in. The seats, in economy, where quite spacious until the people in front of us reclined their seats which then meant the seat was touching our knees. The inconsiderate people who were seated in a bulkhead kept their seats reclined for 80% of the flight and then got annoyed when we bumped their seats while shifting positions. It was highly unpleasant..

We were made to wait in the airport for six hours for a flight that was ultimately canceled.

Both flights were significantly delayed. The flight experience itself was great.

My flight got delayed and eventually canceled, then rescheduled. I and several others had a connection from Boston to Paris and asked several times if we would make it. They assured us we would and then rebooked us mid flight without our consent and closed doors early even though they said they communicated we were a bit delayed. We got stranded in Boston and I opted with being rebooked for a different connection to France since they refused to pay for a Hotel. I've now been in Europe for 5 days and still haven't recieved my bags. There was absolutely no urgency for the fact that I'm in a foreign country with absolutely no change of clothes or any of my medication. Such an overwhelming and frustrating experience.

Automated scanning was slow and somewhat haphazard. Too many people were unfamiliar with the tech and were forced to learn on the fly. The hands off approach of the gate staff made it more uncomfortable. This needs work. Overall the flight and cabin crew were excellent.

The crew for the flight was A+ top notch. They were friendly and professional and made the flight a very relaxing and enjoable.

Rude crew member. She seemed annoyed at me without me saying a single word. Also loudly admonished me for having my bag next to my seat instead of tucked away before landing. Just telling me to put it away and guiding me without giving me a lecture would have been enough.

No included food for a 5 hour flight and the entertainment was only accessible if you had wired headphones (not provided). Otherwise though, great and smooth flying and customer service.

Crew were fantastic and so catering and wonderful! Full score for the entire crew!

Because of weather and mechanical issues our flight was 4 hours late. The only compensation offered to us was a meal voucher to be used only at Boston Airport and only on the day issued. But by the time it was offered to us all the restaurants were closed, so there was no way to use that offer.

Friendly crew, efficient boarding and flight arrived early. Couldn’t ask for a better experience

Everything you need to know for your flight to Ireland