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Cheap flights from Boston to Dublin from C$ 344

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 2/3. Fares are subject to change and may not be available on all flights or dates of travel.
BOS — DUB
27 Feb — 6 Mar1
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
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 28 January 2026.

Sat 21/27:19 p.m.
BOS
-
DUB
1 stop10h 01m
United Airlines
Sat 28/29:00 a.m.
DUB
-
BOS
1 stop30h 02m
United Airlines
Deal found 26/1C$ 478
Sat 21/210:15 p.m.
BOS
-
DUB
Nonstop6h 05m
Delta
Sat 28/211:30 a.m.
DUB
-
BOS
Nonstop7h 25m
Delta
Deal found 27/1C$ 480
Mon 30/311:30 p.m.
BOS
-
DUB
Nonstop6h 15m
Delta
Fri 10/43:00 p.m.
DUB
-
BOS
Nonstop7h 04m
Delta
Deal found 26/1C$ 484
Thu 26/29:05 a.m.
BOS
-
DUB
1 stop17h 40m
Delta
Mon 2/311:30 a.m.
DUB
-
BOS
Nonstop7h 10m
Delta
Deal found 26/1C$ 485
Wed 25/22:20 p.m.
BOS
-
DUB
2 stops14h 35m
United Airlines
Sun 1/39:00 a.m.
DUB
-
BOS
1 stop14h 02m
United Airlines
Deal found 25/1C$ 487
Mon 2/210:30 a.m.
BOS
-
DUB
1 stop16h 40m
United Airlines
Thu 26/29:30 a.m.
DUB
-
BOS
1 stop10h 42m
United Airlines
Deal found 27/1C$ 488
Tue 14/48:50 p.m.
BOS
-
DUB
1 stop9h 15m
Icelandair
Thu 23/42:15 p.m.
DUB
-
BOS
1 stop12h 30m
Icelandair
Deal found 28/1C$ 489
Sun 12/41:00 p.m.
BOS
-
DUB
1 stop14h 15m
United Airlines
Tue 21/49:50 a.m.
DUB
-
BOS
1 stop11h 05m
United Airlines
Deal found 26/1C$ 491
Mon 2/310:15 p.m.
BOS
-
DUB
Nonstop6h 05m
Delta
Sun 8/39:45 a.m.
DUB
-
BOS
1 stop18h 04m
Delta
Deal found 26/1C$ 492
Sat 28/210:15 p.m.
BOS
-
DUB
Nonstop6h 05m
Delta
Sat 7/39:45 a.m.
DUB
-
BOS
1 stop17h 58m
Delta
Deal found 28/1C$ 493
Mon 2/35:35 a.m.
BOS
-
DUB
1 stop23h 45m
United Airlines
Sun 8/38:00 a.m.
DUB
-
BOS
2 stops37h 50m
United Airlines
Deal found 27/1C$ 496

Find 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 28 January 2026.

Round-trip from

C$ 478

One-way from

C$ 344

Popular in

June

Cheapest in

February

Average price

C$ 634

Good round-trip deal

C$ 600 or less
KLM
  • KLM
  • 3/3-10/3
  • Nonstop
  • 13h 15m total
  • Boston to Dublin
Search Deals
LEVEL
  • LEVEL
  • 2/3
  • 1 total stop
  • 33h 00m total
  • Boston to Dublin
Search Deals
Highest demand for flights based on searches. 13% potential increase in price (C$ 155 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease (C$ 24 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in January 2026
Search Deals
Price to beat on a round-trip flight from Boston Logan Intl to Dublin.
Search Deals

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 28 January 2026.
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

Sat 21/2

7:19 p.m.-10:20 a.m.

1 stop10h 01m

Dublin

Sat 28/2

9:00 a.m.-10:02 a.m.

1 stop30h 02m

C$ 478

BostonDublin

BOS - DUB

BOSDUB

Boston Logan Intl

Sun 12/4

11:30 p.m.-10:45 a.m.

Nonstop6h 15m

Dublin

Tue 21/4

3:00 p.m.-5:04 p.m.

Nonstop7h 04m

C$ 484

BostonDublin

BOS - DUB

BOSDUB

Boston Logan Intl

Mon 30/3

11:30 p.m.-10:45 a.m.

Nonstop6h 15m

Dublin

Fri 10/4

3:00 p.m.-5:04 p.m.

Nonstop7h 04m

C$ 484

BostonDublin

BOS - DUB

BOSDUB

Boston Logan Intl

Sat 21/2

5:50 a.m.-7:45 a.m.

1 stop20h 55m

Dublin

Sat 28/2

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

Nonstop7h 25m

C$ 484

BostonDublin

BOS - DUB

BOSDUB

Boston Logan Intl

Sun 3/5

5:45 a.m.-7:20 a.m.

1 stop20h 35m

Dublin

Tue 12/5

9:50 a.m.-5:45 p.m.

2 stops36h 55m

C$ 485

BostonDublin

BOS - DUB

BOSDUB

Boston Logan Intl

Mon 4/5

5:45 a.m.-7:20 a.m.

1 stop20h 35m

Dublin

Tue 12/5

9:50 a.m.-5:45 p.m.

2 stops36h 55m

C$ 487

BostonDublin

BOS - DUB

BOSDUB

Boston Logan Intl

Sat 28/2

10:15 p.m.-9:20 a.m.

Nonstop6h 05m

Dublin

Sat 7/3

9:45 a.m.-10:43 p.m.

1 stop17h 58m

C$ 489

BostonDublin

BOS - DUB

BOSDUB

Boston Logan Intl

Sun 3/5

5:50 a.m.-7:55 a.m.

1 stop21h 05m

Dublin

Wed 13/5

3:00 p.m.-5:04 p.m.

Nonstop7h 04m

C$ 491

BostonDublin

BOS - DUB

BOSDUB

Boston Logan Intl

Tue 28/4

9:02 a.m.-9:15 a.m.

1 stop19h 13m

Dublin

Tue 5/5

3:00 p.m.-5:04 p.m.

Nonstop7h 04m

C$ 491

BostonDublin

BOS - DUB

BOSDUB

Boston Logan Intl

Tue 24/2

2:20 p.m.-7:30 a.m.

2 stops12h 10m

Dublin

Tue 3/3

12:05 p.m.-7:08 p.m.

1 stop12h 03m

C$ 499

Flights are sorted by cheapest round-trip flights first.

Deals found on 26/1

Showing 1-10 of 20 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 23 January 2026.

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, November is the cheapest month in which you can book a flight from Boston to Dublin (average of C$ 428). Flying from Boston to Dublin in June is currently the most expensive (average of C$ 577). 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 28 January 2026.

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.

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 28 January 2026.
Read through reviews of airlines operating flights from Boston to Dublin, such as Air France and Aer Lingus. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
Air France
7.4
Good
1,528 reviews
Check prices

Food

7.0

Boarding

7.4

Comfort

7.3

Entertainment

7.0

Crew

8.1

Overall

7.4

Reviews

1 / 20
6.0
Good

Jayesh,Jan 2026

CDG - NMI

Entertainment needs more good Bollywood movies - as this flight was going to Mumbai, India. The Aircraft was a OLD - Is service to India cannot be improved ? The aircraft from Newark to Paris was great n new aircraft BUT aircraft from Paris to Mumbai was very old and poor class
Air France
7.4
Good
1,528 reviews
Air France
7.4
Good
1,528 reviews
Check prices

Food

7.0

Boarding

7.4

Comfort

7.3

Entertainment

7.0

Crew

8.1

Overall

7.4

Reviews

1 / 20
6.0
Good

Jayesh,Jan 2026

CDG - NMI

Entertainment needs more good Bollywood movies - as this flight was going to Mumbai, India. The Aircraft was a OLD - Is service to India cannot be improved ? The aircraft from Newark to Paris was great n new aircraft BUT aircraft from Paris to Mumbai was very old and poor class
Aer Lingus
7.2
Good
1,442 reviews
Air France
7.4
Good
1,528 reviews
Check prices

Food

7.0

Boarding

7.4

Comfort

7.3

Entertainment

7.0

Crew

8.1

Overall

7.4

Reviews

1 / 20
6.0
Good

Jayesh,Jan 2026

CDG - NMI

Entertainment needs more good Bollywood movies - as this flight was going to Mumbai, India. The Aircraft was a OLD - Is service to India cannot be improved ? The aircraft from Newark to Paris was great n new aircraft BUT aircraft from Paris to Mumbai was very old and poor class

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 11 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 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 6h 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 are the cheapest airlines flying 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$ 362 on this airline. An additional option worth looking into is Air France, starting at C$ 480. Aer Lingus is currently priced 51% 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 Qatar Airways (97%), American Airlines (96%) and Aer Lingus (96%).

  • What are the cheapest flights from Boston to Dublin?

    While on average a flight from Boston to Dublin is generally C$ 631, our data shows the cheapest flight currently is C$ 598. When looking at the most popular route, (Boston Logan Intl - Dublin), you can expect to pay C$ 547 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, November is the cheapest month in which you can book a flight from Boston to Dublin (average of C$ 428). Flying from Boston to Dublin in June is currently the most expensive (average of C$ 577). 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

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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 28 January 2026.
AirlineCheapestAverageFlexibilityOn-time
Aer LingusCheapestC$ 362AverageC$ 607FlexibilityNo cancel feeOn-timeN/A
Search Aer Lingus flights
Air FranceCheapestC$ 480AverageC$ 629FlexibilityNo cancel feeOn-time77%
Search Air France 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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