$209 Find Cheap Flights from Boston 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 Boston to Ireland departing on 1/18. 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 from Boston to Ireland

Cheapest round-trip prices found by our users on KAYAK in the last 72 hours
Dublin
Dublin1 stop$346
Shannon
Shannonnonstop$352
Cork
Cork1 stop$391
Dublin
Dublin1 stop$346
Shannon
Shannonnonstop$352
Cork
Cork1 stop$391

Book Cheap Boston to Ireland Plane Tickets

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

Sun, May 3 - Wed, May 13
Air Canada Logo
7:00 pm - 8:15 amBOS-DUB
32h 15m1 stop
Air Canada Logo
9:50 am - 9:50 amDUB-BOS
29h 00m2 stops
$346Air Canada
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Fri, Apr 24 - Fri, May 1
United Airlines Logo
5:45 am - 10:40 amBOS-DUB
23h 55m1 stop
United Airlines Logo
9:50 am - 10:03 amDUB-BOS
29h 13m1 stop
$347United Airlines
Find Deal
Thu, Jan 15 - Tue, Jan 20
Aer Lingus Logo
9:15 pm - 8:20 amBOS-DUB
6h 05mnonstop
Aer Lingus Logo
4:45 pm - 6:59 pmDUB-BOS
7h 14mnonstop
$348Aer Lingus
Find Deal
Mon, Mar 2 - Sun, Mar 8
Aer Lingus Logo
9:15 pm - 8:20 amBOS-DUB
6h 05mnonstop
Aer Lingus Logo
4:45 pm - 7:55 pmDUB-BOS
7h 10mnonstop
$349Aer Lingus
Find Deal
Fri, Feb 27 - Wed, Mar 4
United Airlines Logo
10:45 am - 7:10 amBOS-DUB
15h 25m1 stop
United Airlines Logo
9:00 am - 3:57 pmDUB-BOS
11h 57m1 stop
$350United Airlines
Find Deal
Thu, Apr 2 - Wed, Apr 8
United Airlines Logo
8:30 am - 7:20 amBOS-DUB
17h 50m2 stops
United Airlines Logo
9:50 am - 2:27 pmDUB-BOS
33h 37m2 stops
$351United Airlines
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Thu, Dec 4 - Sun, Dec 7
Multiple Airlines Logo
10:40 am - 7:10 amBOS-DUB
15h 30m2 stops
Multiple Airlines Logo
9:00 am - 9:27 pmDUB-BOS
17h 27m2 stops
$355Multiple Airlines
Find Deal
Tue, Apr 14 - Thu, Apr 30
American Airlines Logo
9:50 pm - 7:50 pmBOS-ORK
17h 00m1 stop
American Airlines Logo
7:20 am - 7:50 pmORK-BOS
17h 30m2 stops
$391American Airlines
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Fri, Jan 16 - Tue, Jan 20
American Airlines Logo
7:30 am - 11:30 amBOS-SNN
23h 00m1 stop
American Airlines Logo
7:50 am - 4:15 pmSNN-BOS
13h 25m1 stop
$394American Airlines
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Sat, May 2 - Sat, May 9
Multiple Airlines Logo
5:30 pm - 10:15 amBOS-KIR
11h 45m1 stop
Multiple Airlines Logo
10:25 am - 10:00 pmKIR-BOS
16h 35m1 stop
$466Multiple Airlines
Find Deal
Booking Insights

KAYAK's insights & trends for Boston to Ireland flights

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

What is the cheapest Boston to Ireland flight route?

Data is based on round-trip flight searches on KAYAK over the past month.

The cheapest ticket to Ireland from Boston found in the last 72 hours was to Dublin, at $342 round-trip. The most popular route is from Boston (BOS) to Dublin (DUB), and the cheapest round-trip airline ticket found on this route in the last 72 hours was $342.

Can I save money by flying with a layover from Boston to Ireland?

The average round-trip price for all non-stop flights, flights with one layover, and flights with two layovers for the route found by users searching on KAYAK in the last 2 weeks.

No, with an average price for the route of $463, prices are generally cheapest when you fly direct.

What is the cheapest month to fly from Boston to Ireland?

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for round-trip flights from Boston 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 Boston to Ireland is February, when tickets cost $476 (return) on average. On the other hand, the most expensive months are June and July, when the average cost of round-trip tickets is $699 and $656 respectively.

What’s the cheapest day of the week to fly from Boston to Ireland?

The average price of all round-trip flights from Boston to Ireland clicked on KAYAK for each day over the last 12 months.

When flying from Boston to Ireland, you should consider leaving on a Tuesday and avoid Fridays if you are looking for the best rates. For your return to Boston, you’ll find the best rates on Fridays and the most expensive ones on Saturdays.

How far in advance should I book a flight from Boston to Ireland?

To calculate weekly average prices, KAYAK takes all prices for each week before departure over the last year for round-trip flights from Boston 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 Boston to Ireland, you should book around 2 weeks before departure, which saves you about 24% compared to booking last minute. For the absolute cheapest price, our data suggests you should book 5 weeks before departure.

Good to know

Low seasonJanuary
Cheapest flight$209
Best time to beat the crowds with an average 34% drop in price.
Most popular time to fly and prices are also 7% lower on average.
Flight from Boston to Dublin

Flights from Boston to Ireland: the best tips from KAYAK users

Insights shared by verified travelers who flew the route from Boston to Ireland 
Verified travelerFlew with Aer LingusBOS-DUBJul 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).
BarbaraFlew with Aer LingusBOS-DUBMay 2024
Pack what you need in a carryon since it is likely you'll arrive without luggage.

FAQs - booking Ireland flights

  • If I am flying from Boston to Ireland, will I need a passport, and is it necessary to obtain a visa before my trip?

    As a citizen of the United States traveling to Ireland, you will need a passport that is valid for the entire duration of your stay in Ireland. Your passport must have at least one blank page for an entry immigration stamp. If you are traveling to Ireland as a tourist on vacation, you will not need a visa to travel to this country.

  • If I am landing at the airport in Dublin, are there any public transportation options to get me from the airport to the center of the city?

    One of the quickest and most cost-effective ways to get from the airport to the center of the city is aboard one of the buses provided by National Express. The trip will take around 25min for a cost of about €6 ($7).

  • If my final destination in Ireland is the seaside community of Cork, what is the best way for me to get there from Boston?

    While you can fly to Cork from Boston, most trips are going to require two or maybe three stops to get there. Another option that is going to be much quicker is to book a flight to the airport in Dublin and then hop aboard the bus service provided by Go Bus, which makes the trip from the airport in about 3h 30min for a cost of around €17 ($20).

  • Is Ireland a part of the Schengen area?

    Although Ireland is part of the European Union, they are not a part of the Schengen area. Currently, you can travel to the United Kingdom, including Northern Ireland, without any additional border checkpoints, but if you want to continue on from Ireland to any other country in the Schengen area, there will be border checkpoints to make the trip.

  • How does KAYAK find such low prices on flights from Boston 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 Boston to Ireland.

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

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight from Boston 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 Boston 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 Boston 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 Boston 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 Boston 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 time of day to fly to Ireland?

    The cheapest time of day to fly to Ireland is generally in the afternoon, when round-trip flights cost $476 on average. Morning departures are around 17% cheaper than evening flights, 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 $703.

Top tips for finding cheap flights to Ireland

  • Looking for a cheap flight? 25% of our users found tickets from Boston to the following destinations at these prices or less: Dublin $322 one-way - $402 round-trip
  • There are five international airports in Ireland. Of the five that are available, the only airport that offers nonstop service from Boston Logan International Airport (BOS) is Dublin Airport (DUB).
  • If you're looking for a convenient way to get from downtown Boston to the airport, you can purchase a ticket via the MBTA Blue Line, which makes the trip in about 5min at a cost of around $2.
  • Boston Logan Airport offers their AIRA System that connects passengers who are blind or have limited vision to live agents through a mobile app to help them navigate every step of their airport experience.
  • If you are looking for a place to relax before your flight to Ireland, Boston Logan Airport has airline club offerings from four different airlines located in Terminals A, B, and E.
  • If you are planning on driving yourself to Boston Logan Airport before your trip to Ireland, there are garages that sit right at the terminal buildings for your convenience. In addition, there are more cost-effective economy lots off-site that offer shuttle service to the terminal buildings from the lot.

Reviews of the top 5 airlines serving from Boston to Ireland

 
Need help choosing which airline to fly with from Boston 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 8002 reviews
7.9Comfort
7.3Food
8.1Boarding
8.5Crew
7.9Entertainment
Airline reviews

Great. Seamless. Check in agent at kiosk international was amazing and extremely helpful.

10.0 ExcellentWilliam, Nov 2025ATL - SJO
Read more Delta reviews

Great. Seamless. Check in agent at kiosk international was amazing and extremely helpful.

Our flight from SFO to MSP was right on time on 11/15/2025. No delays. As we approached MSP at about 8 pm, we circled in the air until 8:40 pm so I don't call that efficient for MSP. I think the captain should announce the delay and why. (as if we all don't know that we are just circling around the area, slowing down, speeding up, slowing down.) Thank you. Marilyn Fischer

Service in business class was not impressive. I ordered coffee with dinner and then watched other people get 2 refills before I got my 1 cup of coffee, and only after I pressed the attendant button overhead. Furthermore, the seats in the forward cabin need maintenance on this 737-800: the upholstery is detaching from the seat frame, at least on the backs of seats 1C, 1D.

Plenty of leg room, temperature was great and staff was excellent. Would do it more often.

The ticket agents in West Palm Beach on Friday afternoon Nov. 7th were incredible in getting us on an earlier plane to Atlanta during the government shutdown. Had the taken our original flight we would have missed our connection. She did this on her own, We didn't even have to ask, and she did it all with a smile and showing genuine concern that we would be taken care of. We are very grateful and thankful. We fly often, and now we will be sure to fly Delta.

Flight delayed then cancelled. Misplaced luggage. Still do not have. Rented car 1100 mile drive. I had to buy some overnight Hotels clothes toiletries gas food at my expense. Still not home. Not sure where luggage is. Over 4 hours on hold to Felta

I truly love flying with Delta. They have always treated me with the upmost respect

Our flight attendant in FIRST CLASS was one of the worst I’ve ever had. She was not at all pleasant, nor particularly good at her service.

Everything went well and was good. Nothing exceptional, but no complaints either. Cheap seats are pretty comfortable.

Staff were friendly and happy. Delta could make sure passengers that don't have the app know of changes. Without Kayak I would not have known about the change of gate or the delay. Kayak was faster to notify me.

Food was really mediocre for premium economy in comparison to other airlines… the crew was nowhere to be found… 14 hour flight…

Worst airlines either. First leg was delayed because of crew not available. My connection was missed so they booked me automatically the next day! But, impossible to get anyone on site, web site does not let me access my reservation anymore, confirmed by useless agents over the phone. My 2-leg trip with part in business class arriving at 4:10pm ends up in an awful 3-leg arriving at 9pm the next day with no way to even choose the seats and of course at the very end of the plane. I can understand problems arrive but the way Air France handle it is just unacceptable. You are on your own. Apparently getting you to your destination is the only thing they consider their duty. The customer experience and fatigue is none of their concern. And I have a status with them. I will reconsider my priorities when flying with Air France and encourage everyone to do the same.

Excellent, Lima to Paris. But Paris to Amsterdam, delayed, missed my flight and KLM treated its missed flights passengers very badly, terribly bad. No hotel accommodation given. Passengers were told to find their own hotel accommodation and claim at reasonable rate and left the booth and literally with armed Police Officers listening to passengers complains. For three hours, after moving by Uber from hotel to hotel and calling and booking online, no hotel was available. I had to return to the airport and seat/sleep on the benches, suffering the cold, and rats running around until my new allocated flight the next day. It was the most terrible KLM treatment even seen and being a Business Class passenger. Still mentally suffering to date as a result.

3 hour delay but out of their control. App said I get vouchers but when I applied for them, they were nowhere to be found in my account

I bought business class tickets but the seats are exactly like economy with no comfort seats nor an empty seat next to me provided. Very poor, low quality airline.

The food was great and the service and attitude was amazing!!

It was a great experience. The only thing I would have changed was that the bathrooms were never cleaned and they got very dirty.

Old airplanes small seats expensive tickets, not as expected overall and not comfortable according to the price

It was an OK flight with below mediocre service by their flight attendants

Wasted a lot of time trying to find the CDG lounge - it was not next to the connecting flight gate like the Air France staff said.

It all went very well, except for the ramp coordination upon landing in Boston. That, however, was resolved in fairly short order.

NOTE. Aer Lingus does not accept American Express. I was denied boarding because I could not pay the fee for my oversized bag. I did not have another credit or debit card. Moreover, at CDG, I needed to check my bag at one location, go to another location to check my oversized bag and a THIRD location to pay for my oversized bag. Hence, once I was denied boarding, my bags were already en route to the plane. To retrieve them I needed to go to a FOURTH location in another part of the terminal. Last, Aer Lingus will not reimburse me for any portion of my ticket. I lost $1000 bc Aer Lingus doesn’t accept American Express at the CDG counter even though I paid for my ticket through the Kayak link with Amex. Kayak should remedy this situation if they want to continue to partner with Aer Lingus.

The biking process was confusing and I was called for a seat assignment from I number I repeatedly though was spam, but the flight itself was great

It was poor overall. They cancelled our flight and changed it without notifying us. So we incurred extra costs by having to book a hotel for our layover. They say it's Kayak/Underpricer's responsibility to reimburse us. But Kayak/Underpricer have said it's Aer Lingus' responsibility because they are the ones with our 'booking information.' I find this situation confusing and unacceptable.

My experience with Aer Lingus was not too good. First, because of the last minute delayed flight from Amsterdam to Dublin we almost missed our flight from Dublin to Philadelphia. Secondly, the flight from Dublin to Philadelphia had very uncomfortable seats especially it was a very long flight. My buttocks were constantly in pain for sitting on these seats for this long. Lastly, the service in the plane was also slow. I asked for a second cup of water and the hostess told me he'll be right back with that where it took him over an hour to come back with water. It was warm in the plane and I was very thirsty. Overall this airline needs much improvement in their services.

Staff was generally friendly and helpful. Attendants collecting trash were somewhat inattentive though.

This flight left about 45 minutes late, and arrived about 45 minutes late, which was enough to make us miss our next flight and trap us in Dublin for 24 hours!!

I think the extra charges for seating with no added advantage and the added charges for baggage are excessive compared to other airlines.

I had zero issues with the flight. I did have issues with the staff at the airport. We missed out flight due to a delay with another airline. Talking to the staff and trying to get a new flight arranged was challenging. One guy was able to try to help us and got us on a new flight, but other staff was dismissive and clearly let us know it wasn’t their problem. All I kept thinking was… this is why air lingus has such a poor customer service reputation. I will be avoiding this airline in the future.

Food was just okay. Was surprised initially when was charged for a cup of tea when they first came through cabin for beverages. I’ve had far better long distance flights ( take some tips from Swiss airlines)

Checking In on JetBlue site was impossible. It hung up on REAL ID. Even my Global Entry did not help. Luckily, on Kayak site it was a breeze. Entire flight the temperature was COLD! Otherwise the crew was great!

The flight was two hours late due to a computer fault and resulting maintenance. Nothing was offered as compensation beyond bottles of water during the time we were deplaned and waiting in the terminal.

Very pleasant flight attendants. Gate crew rather loud chatting with each other.

Four plus hour flight delay in New York caused us to take off after 11:30pm. We didn’t arrive at our hotel until five hours after check in. Started the trip off feeling exhausted.

Plane was in bad shape. TV’s and WiFi didn’t work. Plane need a refresh. Not enough room for bags.

There was a fowl odour coming from the lavatory the entire flight

Everything was great. I liked the text updates so that I never miss a gate change & I have all the latest info.

I don’t usually fly budget airlines or airlines in the United States. It was as good as any other airline. The seats are comfortable and the airline attendants are not rude & surly. Very nice flight (s).

No internet on a flight over three hours in this age is criminal. Staff inattentive and dismissive

They have the most inexperienced / rude flight staff I’ve encountered

Excellent experience in every way, from ground crew helpfulness, boarding experience, inflight service all the way to modern equipment. My new favorite airline. I wish I could fly with them more often.

For a no frills flight this was surprising comfortable. The crew were helpful and nice. The flight was smooth and there were no delays or issues which I haven't had on a flight in a long time. I would definitely fly with them again.

The flight was canceled by play less than 24 hours prior to the trip, and I was unable to re-book. Have not received a refund for the trip despite filling out the appropriate form.

Was was cancelled less than 24 hours prior to my scheduled departure by PLAY. Despite my attempts to rebook my travel, I encountered significant cost increases that rendered this option unfeasible. In accordance with EC Regulation 261/2004, airlines are required to issue a full refund for cancelled flights within seven days of the scheduled departure if a refund is requested instead of rebooking on another flight. It has been three weeks without a refund or an answer

Have not recieved full refund for my flight, which was cancelled less than 24 hours prior to my scheduled departure by PLAY. Despite my attempts to rebook my travel, I encountered significant cost increases that rendered this option unfeasible. In accordance with EC Regulation 261/2004, airlines are required to issue a full refund for cancelled flights within seven days of the scheduled departure if a refund is requested instead of rebooking on another flight. This request was completed three weeks ago an answer or refund.

It would have been better to have USB charging ports available on the longer haul Flight that one of 2 hours

Was very good Staff was great. No tv monitors tho. So long flights make it longer

The worst. No free beverages. No entertainment on an overseas flight. Not enough space. Never again.

Play is affordable! Only way we fly from the states to Europe. Left late but arrived on time

have screens on backs of chairs...offer free snacks and water

Everything you need to know for your flight from Boston to Ireland

Information on your arrival and departure airports