€161 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 22/2. 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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Best Ireland Flight Deals from Boston

Cheapest return prices found by our users on KAYAK in the last 72 hours
Dublin
Dublindirect€299
Cork
Cork1 stop€339
Shannon
Shannondirect€305
Milltown (Kerry)
Milltown (Kerry)1 stop€404
Dublin
Dublindirect€299
Cork
Cork1 stop€339
Shannon
Shannondirect€305
Milltown (Kerry)
Milltown (Kerry)1 stop€404

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

Thu, 15 Jan - Sun, 18 Jan
Aer Lingus Logo
17:10 - 04:15BOS-DUB
6h 05mdirect
Aer Lingus Logo
16:45 - 18:59DUB-BOS
7h 14mdirect
€299Aer Lingus
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Sun, 29 Mar - Tue, 14 Apr
Air Canada Logo
13:00 - 08:15BOS-DUB
14h 15m1 stop
Air Canada Logo
09:50 - 17:57DUB-BOS
13h 07m2 stops
€300Air Canada
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Wed, 22 Apr - Mon, 4 May
United Airlines Logo
06:00 - 09:45BOS-DUB
22h 45m1 stop
United Airlines Logo
09:50 - 11:43DUB-BOS
30h 53m1 stop
€301United Airlines
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Wed, 3 Dec - Mon, 8 Dec
United Airlines Logo
19:07 - 10:20BOS-DUB
10h 13m1 stop
United Airlines Logo
09:00 - 18:02DUB-BOS
14h 02m1 stop
€302United Airlines
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Tue, 2 Dec - Wed, 17 Dec
Delta Logo
22:05 - 09:20BOS-DUB
6h 15mdirect
Delta Logo
11:30 - 13:40DUB-BOS
7h 10mdirect
€303Delta
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Fri, 27 Feb - Fri, 6 Mar
United Airlines Logo
10:45 - 07:10BOS-DUB
15h 25m1 stop
United Airlines Logo
09:00 - 18:02DUB-BOS
14h 02m1 stop
€304United Airlines
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Thu, 2 Apr - Wed, 8 Apr
Air Canada Logo
05:30 - 08:15BOS-DUB
21h 45m2 stops
Air Canada Logo
09:50 - 17:57DUB-BOS
13h 07m2 stops
€305Air Canada
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Wed, 21 Jan - Mon, 2 Feb
Aer Lingus Logo
19:25 - 06:20BOS-SNN
5h 55mdirect
Aer Lingus Logo
14:45 - 16:50SNN-BOS
7h 05mdirect
€305Aer Lingus
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Tue, 14 Apr - Thu, 30 Apr
American Airlines Logo
21:50 - 19:50BOS-ORK
17h 00m1 stop
American Airlines Logo
07:20 - 19:50ORK-BOS
17h 30m2 stops
€339American Airlines
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Fri, 16 Jan - Tue, 20 Jan
American Airlines Logo
07:30 - 11:30BOS-SNN
23h 00m1 stop
American Airlines Logo
07:50 - 16:15SNN-BOS
13h 25m1 stop
€342American Airlines
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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 €297 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 €297.

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 €509 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 €413 (return) on average. On the other hand, the most expensive months are June and July, when the average cost of return tickets is €607 and €569 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, Monday is the most expensive day to fly from Boston to Ireland. For your return ticket, we recommend flying on a Thursday 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 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€161
Best time to beat the crowds (34% less expensive on average)
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 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 €608 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 €648.

Top tips for finding cheap flights to Ireland

  • 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.
7.2
Aer LingusOverall score based on 1377 reviews
8.0Crew
6.9Entertainment
7.1Comfort
6.6Food
7.4Boarding
Airline reviews

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

10.0 ExcellentThomas, Nov 2025AMS - DUB
Read more Aer Lingus reviews

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)

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

Information on your arrival and departure airports