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Cheap flights from Boston to Dublin from C$ 332

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 11/1. Fares are subject to change and may not be available on all flights or dates of travel.
BOS — DUB
29 Nov — 6 Dec1
1 adult
1 adult, Economy, 0 bags

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 30 October 2025.

Round-trip from

C$ 472

One-way from

C$ 332

Popular in

June

Cheapest in

February

Average price

C$ 690
United Airlines
  • United Airlines
  • 2/3-8/3
  • 3 total stops
  • 61h 35m total
  • Boston to Dublin
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LEVEL
  • LEVEL
  • 1/12
  • 1 total stop
  • 33h 00m total
  • Boston to Dublin
Search Deals
Highest demand for flights based on searches. 13% potential increase in price (C$ 174 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease (C$ 27 potential savings vs. average RT price).
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Average for round-trip flights in October 2025
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Find 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 30 October 2025.

Wed 3/126:00 a.m.BOS - DUB
1 stop20h 30mMultiple Airlines
Mon 8/129:00 a.m.DUB - BOS
2 stops29h 32mMultiple Airlines
Deal found 29/10C$ 472
Wed 10/1210:30 a.m.BOS - DUB
2 stops18h 50mUnited Airlines
Wed 24/129:00 a.m.DUB - BOS
2 stops32h 43mUnited Airlines
Deal found 29/10C$ 475
Fri 28/119:30 a.m.BOS - DUB
1 stop19h 50mUnited Airlines
Fri 5/129:00 a.m.DUB - BOS
2 stops34h 20mUnited Airlines
Deal found 30/10C$ 478
Mon 24/111:30 p.m.BOS - DUB
1 stop15h 25mUnited Airlines
Wed 3/129:00 a.m.DUB - BOS
1 stop11h 57mUnited Airlines
Deal found 30/10C$ 479
Thu 30/1011:37 a.m.BOS - DUB
1 stop16h 08mDelta
Mon 3/1111:30 a.m.DUB - BOS
Nonstop7h 10mDelta
Deal found 30/10C$ 485
Mon 1/126:24 p.m.BOS - DUB
1 stop10h 31mUnited Airlines
Wed 10/129:00 a.m.DUB - BOS
1 stop11h 57mUnited Airlines
Deal found 30/10C$ 486
Thu 4/1210:05 p.m.BOS - DUB
Nonstop6h 15mDelta
Wed 17/1211:30 a.m.DUB - BOS
Nonstop7h 10mDelta
Deal found 30/10C$ 487
Sun 9/1110:20 p.m.BOS - DUB
Nonstop6h 00mDelta
Mon 17/1111:30 a.m.DUB - BOS
Nonstop7h 10mDelta
Deal found 29/10C$ 489
Fri 14/111:42 p.m.BOS - DUB
1 stop13h 03mDelta
Mon 24/1111:30 a.m.DUB - BOS
Nonstop7h 10mDelta
Deal found 29/10C$ 493
Tue 2/125:45 a.m.BOS - DUB
1 stop21h 00mDelta
Fri 19/1211:30 a.m.DUB - BOS
Nonstop7h 10mDelta
Deal found 30/10C$ 494
Sun 9/114:00 p.m.BOS - DUB
1 stop11h 45mKLM
Mon 17/1110:45 a.m.DUB - BOS
1 stop12h 41mKLM
Deal found 29/10C$ 496
Sat 29/117:55 p.m.BOS - DUB
1 stop30h 15mUnited Airlines
Sat 13/129:00 a.m.DUB - BOS
2 stops37h 50mUnited Airlines
Deal found 30/10C$ 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 30 October 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

Tue 10/2

6:00 a.m.-7:30 a.m.

1 stop20h 30m

Dublin

Sun 15/2

9:00 a.m.-9:32 a.m.

2 stops29h 32m

C$ 472

BostonDublin

BOS - DUB

BOSDUB

Boston Logan Intl

Sat 24/1

5:45 a.m.-8:10 a.m.

2 stops21h 25m

Dublin

Sat 31/1

9:00 a.m.-11:12 a.m.

2 stops31h 12m

C$ 475

BostonDublin

BOS - DUB

BOSDUB

Boston Logan Intl

Mon 30/3

7:35 p.m.-7:10 a.m.

1 stop30h 35m

Dublin

Sun 5/4

9:50 a.m.-9:52 a.m.

2 stops29h 02m

C$ 478

BostonDublin

BOS - DUB

BOSDUB

Boston Logan Intl

Fri 28/11

9:30 a.m.-10:20 a.m.

1 stop19h 50m

Dublin

Fri 5/12

9:00 a.m.-2:20 p.m.

2 stops34h 20m

C$ 478

BostonDublin

BOS - DUB

BOSDUB

Boston Logan Intl

Mon 1/12

6:24 p.m.-9:55 a.m.

1 stop10h 31m

Dublin

Wed 10/12

9:00 a.m.-3:57 p.m.

1 stop11h 57m

C$ 486

BostonDublin

BOS - DUB

BOSDUB

Boston Logan Intl

Sat 6/12

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

1 stop21h 10m

Dublin

Wed 10/12

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

1 stop18h 37m

C$ 486

BostonDublin

BOS - DUB

BOSDUB

Boston Logan Intl

Sun 9/11

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

Nonstop6h 00m

Dublin

Mon 17/11

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

Nonstop7h 10m

C$ 487

BostonDublin

BOS - DUB

BOSDUB

Boston Logan Intl

Fri 5/12

6:00 a.m.-7:30 a.m.

1 stop20h 30m

Dublin

Sun 7/12

9:00 a.m.-9:57 a.m.

1 stop29h 57m

C$ 487

BostonDublin

BOS - DUB

BOSDUB

Boston Logan Intl

Fri 6/3

1:10 p.m.-8:45 a.m.

1 stop14h 35m

Dublin

Thu 12/3

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

Nonstop7h 10m

C$ 493

BostonDublin

BOS - DUB

BOSDUB

Boston Logan Intl

Tue 3/3

3:05 p.m.-7:45 a.m.

1 stop11h 40m

Dublin

Tue 10/3

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

Nonstop7h 10m

C$ 493

Flights are sorted by cheapest round-trip flights first.

Deals found on 29/10

Showing 1-10 of 21 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 24 October 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 44 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, February 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 June is currently the most expensive (average of C$ 596). 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 30 October 2025.

One of the essential ways to save on airfare from Boston to Dublin is to remain as flexible as possible. Flights that are at noon tend to be the most expensive. A flight in the evening could potentially save you up to 46% 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 30 October 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
1,365 reviews
Check prices

Comfort

7.1

Entertainment

6.9

Food

6.6

Overall

7.2

Boarding

7.4

Crew

8.0

Reviews

1 / 20
6.0
Good

David,Oct 2025

LIS - DUB

Two issues... 1. The Aer Lingus check-in counter in Lisbon did not open until 90 minutes prior to the flight. Huge line of customers waiting to check-in and very time consuming. Plus, having to clear security, passport control, and take the shuttle bus to the plane takes a long time. Consequently, the flight was delayed due to passengers not being able to get to the gate on time. I showed up four hours early but had to wait for over two hours just for the check-in counter to open. Many passengers complaining about the same issue. VERY STRESSFUL! 2. During the flight one of the flight attendants (Glen) was quite rude to a parent of a non-verbal autistic child. At one point I heard him say in a nasty tone, "You have three seconds to put your bag under the seat or I will take it and check it. 3, 2, 1!" I did not speak to the flight attendant because I was afraid he would kick me off the flight. Very unpleasant to everyone before take off also while instructing them to put the seats up and bags under. A little interpersonal communication training could help this man. Other than those two issues, the flight was fine.
Aer Lingus
7.2
Good
1,365 reviews
Aer Lingus
7.2
Good
1,365 reviews
Check prices

Comfort

7.1

Entertainment

6.9

Food

6.6

Overall

7.2

Boarding

7.4

Crew

8.0

Reviews

1 / 20
6.0
Good

David,Oct 2025

LIS - DUB

Two issues... 1. The Aer Lingus check-in counter in Lisbon did not open until 90 minutes prior to the flight. Huge line of customers waiting to check-in and very time consuming. Plus, having to clear security, passport control, and take the shuttle bus to the plane takes a long time. Consequently, the flight was delayed due to passengers not being able to get to the gate on time. I showed up four hours early but had to wait for over two hours just for the check-in counter to open. Many passengers complaining about the same issue. VERY STRESSFUL! 2. During the flight one of the flight attendants (Glen) was quite rude to a parent of a non-verbal autistic child. At one point I heard him say in a nasty tone, "You have three seconds to put your bag under the seat or I will take it and check it. 3, 2, 1!" I did not speak to the flight attendant because I was afraid he would kick me off the flight. Very unpleasant to everyone before take off also while instructing them to put the seats up and bags under. A little interpersonal communication training could help this man. Other than those two issues, the flight was fine.

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 6 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 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 7 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 25m. Fly via United Airlines to get the fastest option. The distance between Boston and Dublin is about 4801 km.

  • 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$ 370 on this airline. Aer Lingus is currently priced 53% 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 (91%), JetBlue (84%) and Air France (84%).

  • 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, February 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 June is currently the most expensive (average of C$ 596). 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 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 629,999 searches. Data last updated 30 October 2025.
AirlineCheapestAverageFlexibilityOn-time
Aer LingusCheapestC$ 370AverageC$ 623FlexibilityNo cancel feeOn-timeN/A
Search Aer Lingus flights

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

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

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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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