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Cheap flights from Boston to Dublin from C$ 439

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 20/7. Fares are subject to change and may not be available on all flights or dates of travel.
BOS — DUB
11 Jul — 18 Jul1
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 11 June 2026.

Sun 4/1011:35 p.m.
BOS
-
DUB
1 stop28h 45m
LEVEL
Wed 7/1010:00 a.m.
DUB
-
BOS
1 stop16h 05m
LEVEL
Deal found 9/6C$ 721
Thu 8/1010:55 p.m.
BOS
-
DUB
1 stop17h 30m
LEVEL
Wed 21/1010:00 a.m.
DUB
-
BOS
1 stop16h 05m
LEVEL
Deal found 8/6C$ 746
Tue 3/117:50 p.m.
BOS
-
DUB
1 stop9h 25m
Icelandair
Thu 19/1111:30 a.m.
DUB
-
BOS
1 stop11h 20m
Icelandair
Deal found 7/6C$ 769
Sat 7/117:50 p.m.
BOS
-
DUB
1 stop9h 25m
Icelandair
Wed 18/1111:30 a.m.
DUB
-
BOS
1 stop11h 20m
Icelandair
Deal found 9/6C$ 775
Sun 4/1011:00 p.m.
BOS
-
DUB
1 stop9h 15m
Icelandair
Wed 21/1012:15 p.m.
DUB
-
BOS
1 stop14h 30m
Icelandair
Deal found 9/6C$ 783
Sun 6/98:50 p.m.
BOS
-
DUB
1 stop11h 25m
Icelandair
Sat 19/1211:30 a.m.
DUB
-
BOS
1 stop11h 20m
Icelandair
Deal found 8/6C$ 796
Sat 12/98:50 p.m.
BOS
-
DUB
1 stop9h 15m
Icelandair
Sat 19/92:15 p.m.
DUB
-
BOS
1 stop12h 30m
Icelandair
Deal found 8/6C$ 804
Wed 9/911:00 p.m.
BOS
-
DUB
1 stop31h 05m
Icelandair
Wed 16/912:15 p.m.
DUB
-
BOS
1 stop14h 30m
Icelandair
Deal found 9/6C$ 806
Mon 26/108:50 p.m.
BOS
-
DUB
1 stop9h 25m
Icelandair
Sat 7/1111:30 a.m.
DUB
-
BOS
1 stop11h 20m
Icelandair
Deal found 7/6C$ 817
Sun 4/1011:35 p.m.
BOS
-
DUB
1 stop28h 45m
LEVEL
Sun 11/109:50 a.m.
DUB
-
BOS
1 stop16h 55m
LEVEL
Deal found 8/6C$ 818
Sun 25/1011:40 p.m.
BOS
-
DUB
1 stop30h 35m
Icelandair
Mon 2/1111:30 a.m.
DUB
-
BOS
1 stop11h 20m
Icelandair
Deal found 6/6C$ 820

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 11 June 2026.

Round-trip from

C$ 721

One-way from

C$ 439

Popular in

June

Cheapest in

January

Average price

C$ 1,038
LEVEL
  • LEVEL
  • 4/10-7/10
  • 2 total stops
  • 44h 50m total
  • Boston to Dublin
Search Deals
Delta
  • Delta
  • 20/7
  • Nonstop
  • 6h 00m total
  • Boston to Dublin
Search Deals
Highest demand for flights based on searches. 19% potential increase in price (C$ 242 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 4% potential price decrease (C$ 41 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in June 2026
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 11 June 2026.
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 - DUB

BOSDUB

Boston Logan Intl

Sun 6/9

5:40 p.m.-10:10 a.m.

2 stops35h 30m

Dublin

Wed 16/9

11:40 a.m.-3:35 p.m.

2 stops32h 55m

C$ 871

BostonDublin

BOS - DUB

BOSDUB

Boston Logan Intl

Wed 9/9

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

1 stop20h 30m

Dublin

Sun 20/9

9:20 a.m.-9:55 a.m.

1 stop29h 35m

C$ 877

BostonDublin

BOS - DUB

BOSDUB

Boston Logan Intl

Sat 5/9

5:40 p.m.-6:25 p.m.

2 stops19h 45m

Dublin

Tue 8/9

11:40 a.m.-3:35 p.m.

2 stops32h 55m

C$ 878

BostonDublin

BOS - DUB

BOSDUB

Boston Logan Intl

Wed 9/9

11:15 a.m.-7:55 a.m.

1 stop15h 40m

Dublin

Sun 20/9

3:00 p.m.-5:12 p.m.

Nonstop7h 12m

C$ 906

BostonDublin

BOS - DUB

BOSDUB

Boston Logan Intl

Tue 8/9

5:00 p.m.-9:15 a.m.

1 stop11h 15m

Dublin

Sun 13/9

3:00 p.m.-5:12 p.m.

Nonstop7h 12m

C$ 906

BostonDublin

BOS - DUB

BOSDUB

Boston Logan Intl

Mon 12/10

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

1 stop22h 00m

Dublin

Sun 18/10

3:00 p.m.-5:13 p.m.

Nonstop7h 13m

C$ 906

BostonDublin

BOS - DUB

BOSDUB

Boston Logan Intl

Mon 31/8

10:40 a.m.-7:45 a.m.

1 stop16h 05m

Dublin

Thu 10/9

9:50 a.m.-9:26 p.m.

2 stops16h 36m

C$ 913

BostonDublin

BOS - DUB

BOSDUB

Boston Logan Intl

Mon 9/11

8:30 a.m.-9:55 a.m.

1 stop20h 25m

Dublin

Mon 16/11

9:00 a.m.-5:25 p.m.

2 stops37h 25m

C$ 918

BostonDublin

BOS - DUB

BOSDUB

Boston Logan Intl

Sun 1/11

8:30 a.m.-9:55 a.m.

1 stop20h 25m

Dublin

Sat 14/11

9:00 a.m.-5:25 p.m.

2 stops37h 25m

C$ 918

BostonDublin

BOS - DUB

BOSDUB

Boston Logan Intl

Mon 9/11

5:00 p.m.-8:45 a.m.

1 stop10h 45m

Dublin

Mon 16/11

11:55 a.m.-2:09 p.m.

Nonstop7h 14m

C$ 931

Flights are sorted by cheapest round-trip flights first.

Deals found on 11/6

Showing 1-10 of 21 resultsSorted by cheapest first
1
2
3

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?

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 76 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$ 567). Flying from Boston to Dublin in June is currently the most expensive (average of C$ 1,038). 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 June 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.

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

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 June 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
7.5
Good
1,602 reviews
Check prices

Overall

7.5

Comfort

7.4

Crew

8.2

Food

7.0

Boarding

7.5

Entertainment

7.0

Reviews

1 / 20
8.0
Excellent

Grace,Apr 2026

JFK - CDG

Leg room was a bit tight and I had a hard time recovering a lost item but otherwise, great flight.
Air France
7.5
Good
1,602 reviews
Air France
7.5
Good
1,602 reviews
Check prices

Overall

7.5

Comfort

7.4

Crew

8.2

Food

7.0

Boarding

7.5

Entertainment

7.0

Reviews

1 / 20
8.0
Excellent

Grace,Apr 2026

JFK - CDG

Leg room was a bit tight and I had a hard time recovering a lost item but otherwise, great flight.
Aer Lingus
7.3
Good
1,603 reviews
Air France
7.5
Good
1,602 reviews
Check prices

Overall

7.5

Comfort

7.4

Crew

8.2

Food

7.0

Boarding

7.5

Entertainment

7.0

Reviews

1 / 20
8.0
Excellent

Grace,Apr 2026

JFK - CDG

Leg room was a bit tight and I had a hard time recovering a lost item but otherwise, great flight.

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 16 flights from Logan Intl to Dublin, all of which are around 6h 10m 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 12 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 9h 25m. Fly via Icelandair, Scandinavian Airlines, 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 Air France. Our recent data shows that you can find tickets from as low as C$ 489 on this airline. An additional option worth looking into is Aer Lingus, starting at C$ 510. Air France is currently priced 31% 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 (93%), American Airlines (92%) and Aer Lingus (92%).

  • 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$ 567). Flying from Boston to Dublin in June is currently the most expensive (average of C$ 1,038). 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

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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 11 June 2026.
AirlineCheapestAverageFlexibilityOn-time
Air FranceCheapestC$ 489AverageC$ 641FlexibilityNo cancel feeOn-time77%
Search Air France flights
Aer LingusCheapestC$ 510AverageC$ 857FlexibilityNo 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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