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Cheap flights from Boston to Dublin from C$ 399

BOS — DUB
16 Oct — 23 Oct1
1 adult
1 adult, Economy, 0 bags

Cheap flight deals from Boston to Dublin

Enter your travel dates to find the best prices.

Cheapest flights from Boston to Dublin

Fri 30/106:00 a.m. -
1 stop23h 55m
Sun 8/119:00 a.m. -
1 stop30h 22m
Deal found 13/9C$ 550
Thu 5/112:40 p.m. -
1 stop14h 40m
Wed 11/111:35 p.m. -
1 stop9h 59m
Deal found 11/9C$ 593
Thu 5/116:50 a.m. -
1 stop19h 55m
Wed 11/1111:55 a.m. -
Nonstop7h 14m
Deal found 11/9C$ 620
Thu 19/1110:45 p.m. -
Nonstop6h 00m
Sun 22/119:40 a.m. -
1 stop18h 42m
Deal found 11/9C$ 627
Thu 19/118:25 p.m. -
2 stops29h 45m
Sun 22/119:00 a.m. -
2 stops33h 59m
Deal found 11/9C$ 657
Tue 22/97:00 p.m. -
1 stop11h 10m
Tue 29/99:20 a.m. -
2 stops29h 24m
Deal found 15/9C$ 666
Wed 23/97:30 a.m. -
1 stop22h 40m
Mon 28/99:20 a.m. -
1 stop29h 30m
Deal found 16/9C$ 668
Thu 24/910:51 a.m. -
2 stops18h 49m
Tue 29/99:20 a.m. -
2 stops29h 24m
Deal found 14/9C$ 672
Thu 8/106:00 a.m. -
1 stop20h 30m
Wed 14/109:20 a.m. -
1 stop31h 30m
Deal found 15/9C$ 673
Wed 23/96:00 a.m. -
1 stop20h 30m
Wed 30/99:20 a.m. -
1 stop29h 35m
Deal found 14/9C$ 675
Wed 21/1011:40 p.m. -
Nonstop6h 05m
Wed 28/1011:55 a.m. -
Nonstop7h 14m
Deal found 14/9C$ 683

Find flight deals from Boston to Dublin

Round-trip from

C$ 550

One-way from

C$ 399

Popular in

June

Cheapest in

January

Average price

C$ 881
Air Canada
  • Air Canada
  • 30/10-8/11
  • 2 total stops
  • 54h 17m total
  • Boston to Dublin
Search Deals
British Airways
  • British Airways
  • 10/3-31/12
  • 1 total stop
  • 12h 40m total
  • Boston to Dublin
Search Deals
Highest demand for flights based on searches. 15% potential increase in price (C$ 203 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 3% potential price decrease (C$ 36 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in September 2026
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Cheapflights Fare Finder

 
Use the filters below to find and compare flights from Boston to Dublin that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

BostonDublin

BOS Boston Logan Intl - DUB Dublin

BOSDUB

Boston Logan Intl

Sun 13/12

6:45 p.m.-2:15 p.m.

1 stop14h 30m

Dublin

Wed 31/12

12:00 a.m.-6:00 p.m.

Nonstop0h 00m

C$ 399

BostonDublin

BOS Boston Logan Intl - DUB Dublin

BOSDUB

Boston Logan Intl

Sun 13/12

1:35 p.m.-9:55 a.m.

2 stops15h 20m

Dublin

Wed 31/12

12:00 a.m.-6:00 p.m.

Nonstop0h 00m

C$ 416

BostonDublin

BOS Boston Logan Intl - DUB Dublin

BOSDUB

Boston Logan Intl

Thu 19/11

7:30 a.m.-9:55 a.m.

1 stop21h 25m

Dublin

Wed 31/12

12:00 a.m.-6:00 p.m.

Nonstop0h 00m

C$ 433

BostonDublin

BOS Boston Logan Intl - DUB Dublin

BOSDUB

Boston Logan Intl

Mon 12/10

8:59 p.m.-8:20 a.m.

Nonstop6h 21m

Dublin

Wed 31/12

12:00 a.m.-6:00 p.m.

Nonstop0h 00m

C$ 444
Quickest round-trip

BostonDublin

BOS Boston Logan Intl - DUB Dublin

BOSDUB

Boston Logan Intl

Tue 17/11

10:45 p.m.-9:45 a.m.

Nonstop6h 00m

Dublin

Wed 31/12

12:00 a.m.-6:00 p.m.

Nonstop0h 00m

C$ 444

BostonDublin

BOS Boston Logan Intl - DUB Dublin

BOSDUB

Boston Logan Intl

Thu 10/12

10:35 p.m.-9:45 a.m.

Nonstop6h 10m

Dublin

Wed 31/12

12:00 a.m.-6:00 p.m.

Nonstop0h 00m

C$ 444

BostonDublin

BOS Boston Logan Intl - DUB Dublin

BOSDUB

Boston Logan Intl

Wed 9/12

9:10 a.m.-7:55 a.m.

2 stops17h 45m

Dublin

Wed 31/12

12:00 a.m.-6:00 p.m.

Nonstop0h 00m

C$ 449

BostonDublin

BOS Boston Logan Intl - DUB Dublin

BOSDUB

Boston Logan Intl

Fri 13/11

1:29 p.m.-9:55 a.m.

2 stops15h 26m

Dublin

Wed 31/12

12:00 a.m.-6:00 p.m.

Nonstop0h 00m

C$ 449

BostonDublin

BOS Boston Logan Intl - DUB Dublin

BOSDUB

Boston Logan Intl

Fri 30/10

7:27 a.m.-7:55 a.m.

1 stop20h 28m

Dublin

Wed 31/12

12:00 a.m.-6:00 p.m.

Nonstop0h 00m

C$ 449

BostonDublin

BOS Boston Logan Intl - DUB Dublin

BOSDUB

Boston Logan Intl

Mon 16/11

9:12 a.m.-7:30 a.m.

2 stops17h 18m

Dublin

Wed 31/12

12:00 a.m.-6:00 p.m.

Nonstop0h 00m

C$ 449

Flights are sorted by cheapest round-trip flights first.

Deals found on 12/9

Showing 1-10 of 23 resultsSorted by cheapest first
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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

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?

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 56 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$ 568). Flying from Boston to Dublin in June is currently the most expensive (average of C$ 1,080). 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?

When flying from Boston to Dublin, the time of day you decide to fly out makes little to no difference towards the overall price you’ll pay on tickets.

How much does it cost to fly round-trip from Boston to Dublin?

Airfare is below average for this route at the moment.

Boston to Dublin flights typically cost between C$ 758 and C$ 993 in October.
The cheapest round-trip price found within the last 5 days was C$ 550 on Multiple Airlines (30 Oct-8 Nov).

Reviews of airlines servicing Dublin

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
7.3
Good
1,763 reviews
Check prices

Crew

8.1

Boarding

7.5

Food

6.7

Entertainment

7.0

Overall

7.3

Comfort

7.2

Reviews

1 / 20
4.0
Okay

Anonymous,Jun 2026

BOS - SNN

Seats were very uncomfortable and mine was falling apart. My entertainment system didn’t work at all, just a black screen. It was hot in the plane, the airflow alternated between room temperature and warm. The food was gross.
Aer Lingus
7.3
Good
1,763 reviews
Aer Lingus
7.3
Good
1,763 reviews
Check prices

Crew

8.1

Boarding

7.5

Food

6.7

Entertainment

7.0

Overall

7.3

Comfort

7.2

Reviews

1 / 20
4.0
Okay

Anonymous,Jun 2026

BOS - SNN

Seats were very uncomfortable and mine was falling apart. My entertainment system didn’t work at all, just a black screen. It was hot in the plane, the airflow alternated between room temperature and warm. The food was gross.

Related info for your journey

  • 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 13 flights from Logan Intl to Dublin, all of which are around 31h 40m for a nonstop flight. You can also purchase a plane ticket from 1 airline 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 9 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 21h 05m. Fly via United Airlines or Delta 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 is the cheapest airline to fly from Boston to Dublin round-trip?

    Our cheapest airline available from Boston to Dublin is Aer Lingus. Our recent data shows that you can find tickets from as low as C$ 369 on this airline. Aer Lingus is currently priced 54% 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 Iberia (94%), Qatar Airways (92%) and American Airlines (87%).

  • 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$ 568). Flying from Boston to Dublin in June is currently the most expensive (average of C$ 1,080). 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
Swords
Athlone

Browse thousands of different options on Cheapflights for your next trip

Top airline flying from Boston to Dublin

AirlineCheapestAverageFlexibilityOn-time
Aer LingusCheapestC$ 369AverageC$ 856FlexibilityNo cancel feeOn-timeN/A
Search Aer Lingus flights

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