€117 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 10/9. 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

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Best Ireland Flight Deals from Boston

Cheapest return prices found by our users on KAYAK in the last 72 hours
Dublin
Dublindirect€273
Cork
Cork1 stop€310
Shannon
Shannondirect€267
Milltown (Kerry)
Milltown (Kerry)1 stop€384
Dublin
Dublindirect€273
Cork
Cork1 stop€310
Shannon
Shannondirect€267
Milltown (Kerry)
Milltown (Kerry)1 stop€384

Cheap Flights from Boston to Ireland

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for return 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 return flight deals from Boston to Ireland

Tue, 18 Nov - Wed, 19 Nov
Aer Lingus Logo
19:25 - 06:20BOS-SNN
5h 55mdirect
Aer Lingus Logo
14:45 - 16:50SNN-BOS
7h 05mdirect
€267Aer Lingus
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Tue, 21 Oct - Fri, 7 Nov
Air France Logo
23:40 - 10:45BOS-DUB
6h 05mdirect
Air France Logo
11:30 - 13:40DUB-BOS
7h 10mdirect
€273Air France
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Tue, 21 Oct - Fri, 7 Nov
Delta Logo
13:15 - 09:15BOS-DUB
15h 00m1 stop
Delta Logo
11:30 - 13:40DUB-BOS
7h 10mdirect
€277Delta
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Tue, 4 Nov - Tue, 11 Nov
Delta Logo
22:20 - 09:20BOS-DUB
6h 00mdirect
Delta Logo
09:45 - 17:19DUB-BOS
12h 34m1 stop
€282Delta
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Sun, 19 Oct - Mon, 24 Nov
United Airlines Logo
05:30 - 10:20BOS-DUB
23h 50m1 stop
United Airlines Logo
09:00 - 12:12DUB-BOS
32h 12m1 stop
€284United Airlines
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Tue, 28 Oct - Tue, 4 Nov
Iberia Logo
17:45 - 08:55BOS-DUB
11h 10m1 stop
Iberia Logo
13:20 - 20:55DUB-BOS
12h 35m1 stop
€287Iberia
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Wed, 3 Dec - Sat, 13 Dec
Iberia Logo
18:44 - 08:40BOS-DUB
8h 56m1 stop
Iberia Logo
13:20 - 20:55DUB-BOS
12h 35m1 stop
€292Iberia
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Thu, 20 Nov - Mon, 4 May
United Airlines Logo
05:30 - 10:20BOS-DUB
23h 50m1 stop
United Airlines Logo
09:50 - 11:43DUB-BOS
30h 53m1 stop
€293United Airlines
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Mon, 20 Oct - Sat, 1 Nov
 Logo
23:40 - 10:45BOS-DUB
6h 05mdirect
 Logo
09:45 - 19:30DUB-BOS
13h 45m1 stop
€295
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Sun, 7 Sep - Sat, 20 Sep
 Logo
09:05 - 11:10BOS-DUB
21h 05m1 stop
 Logo
09:20 - 09:30DUB-BOS
29h 10m1 stop
€305
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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 €215 return. 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 €215.

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

The average return price for all direct flights, flights with one stopover, and flights with two stopovers for the route found by users searching on KAYAK in the last 2 weeks.

Yes, flying with a stopover may cost you more time, but you can also save money on the route, with a 1 stop stopover the cheapest option at €530 on average.

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 €410 (return) on average. On the other hand, the most expensive months are June and July, when the average cost of return tickets is €623 and €573 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.

If your flying dates are flexible, you should consider flying to Ireland on a Saturday, as we generally find the cheapest rates on that day for this route. On the other hand, Friday is the most expensive day to fly from Boston to Ireland. For your return ticket, we recommend flying on a Friday and avoiding Wednesdays for the best deals.

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 a flight from Boston to Ireland, you should book around 2 weeks before departure, which saves you about 28% compared to booking last-minute. For the absolute cheapest price, our data suggests you should book 8 weeks before departure.

Good to know

Low seasonJanuary
Cheapest flight€117
Best time to beat the crowds (21% less expensive on average)
Most popular time to fly (14% more expensive on average)
Flight from Boston to Dublin

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

Insights shared by verified travellers 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 travellers 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 return 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 at night, when retur flights cost €700 on average. Morning departures are around 100% 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 €746.

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 €251 one-way - €240 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 airline flying 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.
7.1
Aer LingusOverall score based on 1214 reviews
7.3Boarding
7.1Comfort
6.9Entertainment
6.5Food
8.0Crew
Airline reviews

It was my first transatlantic flight with Aer Lingus. Very enjoyable. Thank you for making international travel enjoyable again.

10.0 ExcellentLeslie, Aug 2025FRA - DUB
Read more Aer Lingus reviews

It was my first transatlantic flight with Aer Lingus. Very enjoyable. Thank you for making international travel enjoyable again.

Excellent as far as the flight is concerned. Faro airport passport check was a huge delay and worrisome re missing the flight. 45 minutes there through passport control

The space between seats has reduced even further making it extremely uncomfortable. Couldn't even open the tray table properly or got compressed the moment the front guy reclined.

The seat pitch was a little tight for me, but I survived. There was a volatile, enraged passenger a couple of rows ahead of me and the cabin crew defused and resolved the situation calmly, quickly, and successfully.

My experience with Aer Lingus was nice, and I would be happy to fly with them again. However, my seat pocket had not been cleaned and had dirty wipes in it. I have flown with Aer Lingus before and do not recall anything like that happening, so presumably this was a one-off kind of thing. For the meal, I asked if there was possibly one without my allergens and the flight attendant gave me the one she thought would be fine. She did not know what allergens were in it, but when I received the meal the allergens were all listed right on the top of the package, so I was confused about why she didn’t know how to check what they were. In future, I will see if it’s possible to request an allergen-free meal ahead of time. But overall, I had a pleasant experience. My experience with Underpricer was very unenjoyable and because of them I do not plan to book through Kayak in the future. I have used Kayak numerous times, but this booking experience was so unpleasant. They called me numerous times and also emailed me to try to get me to select a seat. However, when I had a question later on, I was kept on hold for 20/30 minutes before I finally hung up. I also emailed them but never received a response, which I did not appreciate, especially given their previous frequent calls when they wanted something from me.

We booked a flight from FCO(Rome) with a stop over at DUB(Dublin) going to JFK. Boarding from Rome was kind of chaotic since the airport I guess is very small and we needed to shuttle to the airplane. The gate agent just let everyone and anyone go without using the sections so that took a lot longer than usual boarding. From drinking to JFk boarding was good and organized. Amazingly the flights was very smooth sailing and we’ve flown American big airplane to small companies before. The aircraft’s itself is on the older side, can’t complain tho because the plane ride wa smooth. For a 3 hour plane ride, nothing was complimentary. But for the longer leg of the plane complimentary snacks, meals and drinks were provided which was great. The food wasn’t bad either. I would fly with them again, great price and good service.

Comfortable trip , flight attendants professional as always. Only complaint was the food, We fly Aer Lingus frequently, this was the first time the quality of the meal was poor.

Everything went well. I made my connection which is always a concern.

I appteciate the very courteous staff. The flight was good. Something that wasn't good was that my bag was only checked as far as Dublin and I had a connecting flight to Vienna. (That was a mistake the ORD desk made.) Fortunately the desk at DUB was able to re-tag without me having to re-check in (which initially it seemed I might have to do.)

I had an awful experience at the ticketing agent stand. I had purchased three tickets, one of which I had the maiden name of a passenger on the ticket. They refused to help, assist, and actually delayed our process and had us miss an opportunity to purchase a ticket on the same flight. I was sent through multiple phone calls, none of which helped, and the person at the counter was the person who told me to both call Aer Lingus for help and was the person who said they could not fulfill my request that they were privy to from the beginning. My partner is still stuck in Scotland, racking up thousands of dollars in additional fees and tickets. I am very upset and two of my tickets went unused. I will never be using Aer Lingus ever again and I will continue to complain about them.

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

Information on your arrival and departure airports

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