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Cheap flights from Boston to Dublin from C$ 323

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 15/1. Fares are subject to change and may not be available on all flights or dates of travel.
BOS — DUB
11 Oct — 18 Oct1
1 adult
1 adult, Economy

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 11 September 2025.

Round-trip from

C$ 482

One-way from

C$ 323

Popular in

June

Cheapest in

February

Average price

C$ 759

Good round-trip deal

C$ 699 or less

Good one-way deal

C$ 455 or less
Delta
  • Delta
  • 14/10-22/10
  • Nonstop
  • 13h 20m total
  • Boston to Dublin
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LEVEL
  • LEVEL
  • 15/11
  • 1 total stop
  • 33h 00m total
  • Boston to Dublin
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Highest demand for flights based on searches. 14% potential increase in price (C$ 178 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease (C$ 29 potential savings vs. average RT price).
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Average for round-trip flights in September 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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Find flight deals from Boston to Dublin

Cheapest flights from Boston to Dublin
Explore the most affordable flight options available from Boston to Dublin. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 11 September 2025.

Fri 31/102:21 p.m.BOS - DUB
1 stop15h 59mUnited Airlines
Mon 10/119:00 a.m.DUB - BOS
1 stop14h 02mUnited Airlines
Deal found 11/9C$ 482
Tue 4/1110:20 p.m.BOS - DUB
Nonstop6h 00mDelta
Tue 11/115:55 a.m.DUB - BOS
2 stops21h 30mDelta
Deal found 11/9C$ 484
Wed 29/107:55 p.m.BOS - DUB
1 stop30h 15mUnited Airlines
Sun 2/119:00 a.m.DUB - BOS
2 stops37h 50mUnited Airlines
Deal found 11/9C$ 485
Wed 29/109:50 p.m.BOS - DUB
1 stop14h 30mDelta
Wed 5/1111:30 a.m.DUB - BOS
Nonstop7h 10mDelta
Deal found 11/9C$ 486
Mon 13/101:15 p.m.BOS - DUB
1 stop15h 00mDelta
Wed 22/1012:00 p.m.DUB - BOS
Nonstop7h 15mDelta
Deal found 9/9C$ 488
Wed 15/1012:10 p.m.BOS - DUB
1 stop15h 35mDelta
Wed 22/1012:00 p.m.DUB - BOS
Nonstop7h 15mDelta
Deal found 11/9C$ 489
Tue 25/1110:20 p.m.BOS - DUB
Nonstop6h 00mDelta
Tue 2/129:45 a.m.DUB - BOS
1 stop14h 55mDelta
Deal found 11/9C$ 491
Wed 26/111:30 p.m.BOS - DUB
2 stops36h 40mUnited Airlines
Sun 30/119:00 a.m.DUB - BOS
2 stops37h 50mUnited Airlines
Deal found 10/9C$ 492
Thu 25/126:15 a.m.BOS - DUB
1 stop19h 55mUnited Airlines
Wed 14/19:00 a.m.DUB - BOS
1 stop14h 02mUnited Airlines
Deal found 10/9C$ 495
Sun 28/126:50 a.m.BOS - DUB
1 stop19h 55mDelta
Thu 15/15:55 a.m.DUB - BOS
1 stop12h 30mDelta
Deal found 10/9C$ 497
Sat 25/103:17 p.m.BOS - DUB
2 stops14h 38mUnited Airlines
Sat 1/118:00 a.m.DUB - BOS
2 stops38h 50mUnited Airlines
Deal found 9/9C$ 499

Cheapflights Fare Finder

 
Customize your flight search to find flights from Boston to Dublin that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 629,999 searches. Data last updated 11 September 2025.
Use the filters below to find and compare flights from Boston to Dublin that are best for you.

Fly from

Boston

Fly to

Dublin

Route

Depart

Return

Price

BostonDublin

BOS - DUB

BOSDUB

Boston Logan Intl

Sun 19/10

9:59 a.m.-9:15 a.m.

1 stop18h 16m

Dublin

Wed 29/10

11:30 a.m.-2:40 p.m.

Nonstop7h 10m

C$ 482

BostonDublin

BOS - DUB

BOSDUB

Boston Logan Intl

Wed 8/10

9:30 a.m.-7:10 a.m.

1 stop16h 40m

Dublin

Mon 24/11

9:00 a.m.-10:37 p.m.

1 stop18h 37m

C$ 482

BostonDublin

BOS - DUB

BOSDUB

Boston Logan Intl

Sun 2/11

10:20 p.m.-9:20 a.m.

Nonstop6h 00m

Dublin

Tue 11/11

6:00 a.m.-8:10 p.m.

2 stops19h 10m

C$ 482

BostonDublin

BOS - DUB

BOSDUB

Boston Logan Intl

Wed 29/10

9:50 p.m.-4:20 p.m.

1 stop14h 30m

Dublin

Wed 5/11

11:30 a.m.-1:40 p.m.

Nonstop7h 10m

C$ 486

BostonDublin

BOS - DUB

BOSDUB

Boston Logan Intl

Sat 6/12

5:45 a.m.-7:45 a.m.

1 stop21h 00m

Dublin

Mon 15/12

11:30 a.m.-1:40 p.m.

Nonstop7h 10m

C$ 489

BostonDublin

BOS - DUB

BOSDUB

Boston Logan Intl

Mon 16/2

8:35 p.m.-3:45 p.m.

1 stop14h 10m

Dublin

Mon 23/2

11:30 a.m.-1:55 p.m.

Nonstop7h 25m

C$ 491

BostonDublin

BOS - DUB

BOSDUB

Boston Logan Intl

Sun 11/1

4:15 p.m.-7:30 a.m.

1 stop10h 15m

Dublin

Mon 19/1

9:00 a.m.-6:02 p.m.

1 stop14h 02m

C$ 492

BostonDublin

BOS - DUB

BOSDUB

Boston Logan Intl

Fri 9/1

4:15 p.m.-7:30 a.m.

1 stop10h 15m

Dublin

Wed 14/1

9:00 a.m.-6:02 p.m.

1 stop14h 02m

C$ 492

BostonDublin

BOS - DUB

BOSDUB

Boston Logan Intl

Wed 29/10

9:30 a.m.-9:55 a.m.

2 stops20h 25m

Dublin

Wed 5/11

9:00 a.m.-5:50 p.m.

2 stops37h 50m

C$ 496

BostonDublin

BOS - DUB

BOSDUB

Boston Logan Intl

Wed 15/10

11:40 p.m.-10:45 a.m.

Nonstop6h 05m

Dublin

Wed 22/10

10:00 a.m.-7:30 p.m.

1 stop14h 30m

C$ 496

Flights are sorted by cheapest round-trip flights first.

Deals found on 10/9

Showing 1-10 of 22 results
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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 round-trip 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 round-trip flight from Boston to Dublin. Price data was last updated on 29 August 2025.

The price you pay for your flight from Boston to Dublin may vary depending on when you book. For the best chance of a lower fare, look to book 50 days in advance of your trip. Fares are likely to increase a fortnight or so before your departure date.

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 C$ 458). Flying from Boston to Dublin in December is currently the most expensive (average of C$ 760). 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 11 September 2025.

One of the essential ways to save on airfare from Boston to Dublin is to remain as flexible as possible. Flights that are in the morning tend to be the most expensive. A flight at noon could potentially save you up to 28% on airfare.

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 11 September 2025.
Read through reviews of airlines operating flights from Boston to Dublin, such as Aer Lingus and PLAY. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
Aer Lingus
7.2
Good
1,271 reviews
Check prices

Boarding

7.3

Overall

7.2

Entertainment

6.9

Food

6.5

Crew

8.0

Comfort

7.1

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
1,271 reviews
Aer Lingus
7.2
Good
1,271 reviews
Check prices

Boarding

7.3

Overall

7.2

Entertainment

6.9

Food

6.5

Crew

8.0

Comfort

7.1

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.
PLAY
7.0
Good
Aer Lingus
7.2
Good
1,271 reviews
Check prices

Boarding

7.3

Overall

7.2

Entertainment

6.9

Food

6.5

Crew

8.0

Comfort

7.1

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.

  • What airports do I use to fly from Boston to Dublin?

    Booking a flight from Boston Logan Intl (BOS) to Dublin (DUB) is your only option if you wish to fly from Boston to Dublin. On a typical day, there are 14 flights from Logan Intl to Dublin, all of which are around 6h 05m for a nonstop flight. You can also purchase a plane ticket from 2 airlines when you book a flight from Logan Intl to Dublin.

  • How popular is this Boston to Dublin flight route?

    Flights from Boston Logan Intl to Dublin have been viewed 8 times in the past calendar month.

  • How long is the flight from Boston to Dublin?

    There are many flights that can get you from Boston to Dublin in 10h 15m. Fly via Delta or United Airlines to get the fastest option. The distance between Boston and Dublin is about 4801 km. Both multi-stop and direct flights can be found to your destination and back.

  • What are the cheapest airlines flying from Boston to Dublin round-trip?

    Our cheapest airline available from Boston to Dublin is PLAY. Our recent data shows that you can find tickets from as low as C$ 392 on this airline. An additional option worth looking into is Aer Lingus, starting at C$ 553. PLAY is currently priced 50% below the average price you’ll pay for this route.

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

    The top 3 most reliable airlines when flying from Boston to Dublin are Air France (92%), KLM (87%) and Delta (87%).

  • What are the cheapest flights from Boston to Dublin?

    While on average a flight from Boston to Dublin is generally C$ 720, our data shows the cheapest flight currently is C$ 447. When looking at the most popular route, (Boston Logan Intl - Dublin), you can expect to pay C$ 468 for that flight.

  • 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 vacation 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 C$ 458). Flying from Boston to Dublin in December is currently the most expensive (average of C$ 760). 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

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Top 2 airlines flying from Boston to Dublin

Discover the top 2 airlines 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 629,999 searches. Data last updated 11 September 2025.
AirlineCheapestAverageFlexibilityOn-time
PLAYCheapestC$ 392AverageC$ 499FlexibilityNo cancel feeOn-timeN/A
Search PLAY flights
Aer LingusCheapestC$ 553AverageC$ 737FlexibilityNo cancel feeOn-timeN/A
Search Aer Lingus flights

Fly with Cheapflights

Find the best flight deals on Cheapflights, where travelers 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?

When you search for this flight from Boston to Dublin, Cheapflights searches on 900+ travel sites to save you time finding great flight deals online. Additionally, we offer filter features so you can choose a preferred cabin class or airline, see different price ranges, and much more so you can book the flight for you.

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

Cheapflights simply makes it quick and affordable to book flights from Boston to Dublin by bringing together all flight options from hundreds of airlines and agencies online — and put it in one place for you to choose from. Plus, Cheapflights is 100% free to use for all.

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

Cheapflights does show flights with no change fees to all users. To see these options for flights from Boston to Dublin, users can toggle the no change fees filter when performing a flight search.

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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