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Cheap flights from Boston to Dublin

BOS — DUB
24 Aug — 31 Aug1
1 adult

Cheapflights Tip: The best prices from Boston Logan Intl to Dublin are usually found in February or November, booked 50 days in advance, depart on a Thursday or Tuesday and return on a Friday

Cheap flight deals from Boston to Dublin

Discover tips and strategies to find the most affordable flight options for your journey from Boston (BOS) to Dublin (DUB). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated 19 August 2025.

Popular in

June

Cheapest in

February

Average price

£442

Good round-trip deal

£403 or less

Good one-way deal

£261 or less
Highest demand for flights based on searches. 13% potential increase in price (£49 potential increase over avg. return price).
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Cheapest flight prices on average. 2% potential price decrease (£9 potential savings vs. average return price).
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Average for round-trip flights in August 2025
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Price to beat on a round-trip flight from Boston Logan Intl to Dublin.
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Price to beat on a one-way flight from Boston Logan Intl to Dublin.
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Best time to book a flight from Boston to Dublin

Have a flexible travel schedule? Discover the best time to fly to Dublin from Boston with our price prediction graph.
Estimated return price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Cheapflights Insights

Everything you need to know about your flight from Boston to Dublin

How far ahead should I book a flight from Boston to Dublin?

Use this chart to determine the optimal time to book a return flight from Boston to Dublin. Price data was last updated on 8 August 2025.

To ensure you get the cheapest price possible for a flight from Boston to Dublin, you should look to book at least 50 days in advance of your intended travel date. The price of your flight may increase if you delay and leave booking until a week or so before departure.

What is the cheapest month to book a flight from Boston to Dublin?

Currently, January is the cheapest month in which you can book a flight from Boston to Dublin (average of £71). Flying from Boston to Dublin in August is currently the most expensive (average of £93). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

What is the cheapest time of day to fly from BOS to DUB?

Find hourly flight availability from Boston to Dublin. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated 19 August 2025.

It’s optimal to fly from Boston to Dublin in the morning. By choosing this option you can save up to 15% on the cost of your flight, compared to a flight at midday.

Reviews of airlines servicing Dublin

Get insights into the airlines that provide service to Dublin. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Dublin. Reviews last updated 19 August 2025.
Read through reviews of airlines operating flights from Boston to Dublin, such as Aer Lingus. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
Aer Lingus
7.2
Good
1,221 reviews
Check prices

Boarding

7.3

Entertainment

6.9

Overall

7.2

Food

6.5

Comfort

7.1

Crew

8.0

Reviews

1 / 20
10.0
Excellent

Anonymous,Jul 2025

LHR - DUB

The lack of headphones impacted our ability to enjoy the entertainment system provided. The fact that my last connection was associated with an "affiliated airline" that did not allow me to retrieve a check in or a boarding pass via the app almost posed a significant issue as the last leg of the flight was overbooked and we were stressed about getting a seat as a result.
Aer Lingus
7.2
Good
1,221 reviews
Aer Lingus
7.2
Good
1,221 reviews
Check prices

Boarding

7.3

Entertainment

6.9

Overall

7.2

Food

6.5

Comfort

7.1

Crew

8.0

Reviews

1 / 20
10.0
Excellent

Anonymous,Jul 2025

LHR - DUB

The lack of headphones impacted our ability to enjoy the entertainment system provided. The fact that my last connection was associated with an "affiliated airline" that did not allow me to retrieve a check in or a boarding pass via the app almost posed a significant issue as the last leg of the flight was overbooked and we were stressed about getting a seat as a result.

Related info for your journey

Find useful and relevant information for your journey from Boston to Dublin. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • How popular is this Boston to Dublin flight route?

    Within the past month, 80 users have taken a look at flights from Boston Logan Intl to Dublin.

  • What is the cheapest airline to fly from Boston to Dublin round-trip?

    Currently priced at £326, Aer Lingus will fly you from Boston to Dublin and back. In addition to Aer Lingus, many other airlines offer competitively priced options for your trip. Users have found that Aer Lingus is 22% cheaper than the other options available to this destination.

  • What are the most reliable airlines from Boston to Dublin?

    The top 3 most reliable airlines when flying from Boston to Dublin are American Airlines (91%), Aer Lingus (91%) and British Airways (91%).

  • Can I find deals for flights from Boston to Dublin that include hotel bookings?

    Yes. In addition to deals on Boston to Dublin flights, Cheapflights offers holiday packages that include both flights and hotel.

  • How can I find direct flights from Boston to Dublin?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Boston to Dublin.

  • Can I find deals for business class flights from Boston to Dublin?

    Yes. Cheapflights offers flight deals from Boston to Dublin by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

  • What is the cheapest month to book a flight from Boston to Dublin?

    Currently, January is the cheapest month in which you can book a flight from Boston to Dublin (average of £71). Flying from Boston to Dublin in August is currently the most expensive (average of £93). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

Travelling to a place near Dublin?

Book flights to Dublin if you plan to visit one of these locations
Wicklow
Athlone
Bray
Malahide
Tullamore
Cavan
Drogheda
Portmarnock
Enniscorthy
Dundalk
Mullingar
Arklow
Carlingford
Kildare
Maynooth
Swords
Castleknock
Naas

Browse thousands of different options on Cheapflights for your next trip

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Top airline flying from Boston to Dublin

Discover the top airline that operate flights from Boston to Dublin. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 858,174 searches. Data last updated 19 August 2025.
AirlineCheapestAverageFlexibilityOn-time
Aer LingusCheapest£326Average£482FlexibilityNo cancel feeOn-timeN/A
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Fly with Cheapflights

Find the best flight deals on Cheapflights, where travellers can enjoy low prices and a wide availability of flights to their desired destinations.

How does Cheapflights help users find flights from Boston to Dublin?

Deals for Boston to Dublin flights are sourced from 900+ travel sites when you use Cheapflights. When all flight results come back, Cheapflights lets you sort and filter flights using different criteria to choose better, like price, airport, cabin class, and plenty of other options.

Why should you use Cheapflights to find cheap flight tickets from Boston to Dublin?

It’s simple! Cheapflights, which is free to use for everyone, saves millions of users time and money every year by helping them find the cheapest and most suitable flights from Boston to Dublin.

Can Cheapflights find flights from Boston to Dublin with no change fees?

Need flexible booking options for your flight to Dublin from Boston? Don’t worry, Cheapflights have you covered. Use our search filter to only show flights with no change fees.

Can Cheapflights notify me if prices for flights from Boston to Dublin become cheaper?

Yes, and it’s super simple to set up. Click the bell icon next to the flight deals above and provide a valid email address to enable Price Alerts. That’s it!

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