Cheap flights from Boston to Dublin from €171

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Boston to Dublin departing on 23/10. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
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United Airlines Logo
05:45 - 10:20BOS-DUB
23h 35m1 stop
United Airlines Logo
09:00 - 12:12DUB-BOS
32h 12m1 stop
€291United Airlines
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Sun, 22 Feb - Sun, 1 Mar
Lufthansa Logo
20:40 - 17:10BOS-DUB
15h 30m1 stop
Lufthansa Logo
10:50 - 18:35DUB-BOS
12h 45m1 stop
€291Lufthansa
Find Deal
Tue, 11 Nov - Tue, 18 Nov
Lufthansa Logo
21:40 - 17:10BOS-DUB
15h 30m1 stop
Lufthansa Logo
10:50 - 18:35DUB-BOS
12h 45m1 stop
€292Lufthansa
Find Deal
Mon, 27 Oct - Tue, 4 Nov
Multiple Airlines Logo
06:00 - 07:30BOS-DUB
20h 30m1 stop
Multiple Airlines Logo
09:00 - 12:12DUB-BOS
32h 12m1 stop
€295Multiple Airlines
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Fri, 14 Nov - Fri, 21 Nov
Multiple Airlines Logo
07:30 - 07:30BOS-DUB
19h 00m1 stop
Multiple Airlines Logo
09:00 - 21:27DUB-BOS
17h 27m2 stops
€296Multiple Airlines
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Mon, 10 Nov - Wed, 19 Nov
Aer Lingus Logo
22:20 - 08:20BOS-DUB
6h 00mdirect
Aer Lingus Logo
16:45 - 19:55DUB-BOS
7h 10mdirect
€297Aer Lingus
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Sun, 15 Mar - Wed, 18 Mar
Delta Logo
09:59 - 08:45BOS-DUB
18h 46m1 stop
Delta Logo
11:30 - 13:40DUB-BOS
7h 10mdirect
€299Delta
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Sun, 26 Oct - Mon, 3 Nov
Delta Logo
22:05 - 09:20BOS-DUB
6h 15mdirect
Delta Logo
11:30 - 13:40DUB-BOS
7h 10mdirect
€300Delta
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Thu, 4 Dec - Mon, 15 Dec
Air Canada Logo
10:35 - 08:15BOS-DUB
16h 40m2 stops
Air Canada Logo
09:50 - 21:27DUB-BOS
16h 37m2 stops
€304Air Canada
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Tue, 31 Mar - Tue, 14 Apr
Air Canada Logo
06:15 - 08:15BOS-DUB
21h 00m1 stop
Air Canada Logo
09:50 - 21:27DUB-BOS
16h 37m2 stops
€310Air Canada
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Thu, 2 Apr - Wed, 8 Apr

United Airlines flights from Boston to Dublin

Our best United Airlines deals on Boston to Dublin flight tickets
United Airlines
22 Feb
BOS05:45Boston Logan Intl
23h 35m
1 stop
DUB10:20Dublin
1 Mar
DUB09:00Dublin
37h 50m
2 stops
BOS17:50Boston Logan Intl
United Airlines
5 Dec
BOS14:15Boston Logan Intl
15h 05m
1 stop
DUB10:20Dublin
10 Dec
DUB09:00Dublin
34h 29m
2 stops
BOS14:29Boston Logan Intl
United Airlines
20 Nov
BOS06:15Boston Logan Intl
19h 55m
1 stop
DUB07:10Dublin
26 Nov
DUB09:00Dublin
18h 37m
1 stop
BOS22:37Boston Logan Intl

Lufthansa flights from Boston to Dublin

Our best Lufthansa deals on Boston to Dublin flight tickets
Lufthansa
11 Nov
BOS20:40Boston Logan Intl
15h 30m
1 stop
DUB17:10Dublin
18 Nov
DUB10:50Dublin
12h 45m
1 stop
BOS18:35Boston Logan Intl
Lufthansa
27 Oct
BOS21:40Boston Logan Intl
15h 30m
1 stop
DUB17:10Dublin
4 Nov
DUB10:50Dublin
12h 45m
1 stop
BOS18:35Boston Logan Intl
Lufthansa
13 Nov
BOS20:40Boston Logan Intl
15h 30m
1 stop
DUB17:10Dublin
18 Nov
DUB10:50Dublin
12h 45m
1 stop
BOS18:35Boston Logan Intl

momondo Fare Finder

 
Customise 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, momondo users made 13,528 searches. Data last updated 16 October 2025.
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

BostonDublin

BOS - DUB

BOSDUB

Boston Logan Intl

Sun 22/2

05:45-10:20

1 stop23h 35m

Dublin

Sun 1/3

09:00-12:12

1 stop32h 12m

€291

BostonDublin

BOS - DUB

BOSDUB

Boston Logan Intl

Tue 11/11

20:40-17:10

1 stop15h 30m

Dublin

Tue 18/11

10:50-18:35

1 stop12h 45m

€291

BostonDublin

BOS - DUB

BOSDUB

Boston Logan Intl

Mon 27/10

21:40-17:10

1 stop15h 30m

Dublin

Tue 4/11

10:50-18:35

1 stop12h 45m

€292

BostonDublin

BOS - DUB

BOSDUB

Boston Logan Intl

Fri 14/11

06:00-07:30

1 stop20h 30m

Dublin

Fri 21/11

09:00-12:12

1 stop32h 12m

€295

BostonDublin

BOS - DUB

BOSDUB

Boston Logan Intl

Mon 10/11

07:30-07:30

1 stop19h 00m

Dublin

Wed 19/11

09:00-21:27

2 stops17h 27m

€296

BostonDublin

BOS - DUB

BOSDUB

Boston Logan Intl

Sun 15/3

22:20-08:20

Nonstop6h 00m

Dublin

Wed 18/3

16:45-19:55

Nonstop7h 10m

€297

BostonDublin

BOS - DUB

BOSDUB

Boston Logan Intl

Sun 26/10

09:59-08:45

1 stop18h 46m

Dublin

Mon 3/11

11:30-13:40

Nonstop7h 10m

€299

BostonDublin

BOS - DUB

BOSDUB

Boston Logan Intl

Thu 4/12

22:05-09:20

Nonstop6h 15m

Dublin

Mon 15/12

11:30-13:40

Nonstop7h 10m

€300

BostonDublin

BOS - DUB

BOSDUB

Boston Logan Intl

Tue 31/3

10:35-08:15

2 stops16h 40m

Dublin

Tue 14/4

09:50-21:27

2 stops16h 37m

€304

BostonDublin

BOS - DUB

BOSDUB

Boston Logan Intl

Thu 2/4

06:15-08:15

1 stop21h 00m

Dublin

Wed 8/4

09:50-21:27

2 stops16h 37m

€310

Flights are sorted by cheapest return flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
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See travel insights to Dublin from

How to get the cheapest flight ticket from Boston to Dublin

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

What is the cheapest month to fly to Dublin?

If you aren’t able to travel during the month of February, then book flights to Dublin from Boston during November instead. Flights to Dublin in November, while not as cheap as those in February, still average around €419.

What is the cheapest day to depart on your flight to Dublin?

Our data shows that Tuesday is the least expensive day to fly to Dublin. Tickets to fly out on this day can be as low as €487. If your travel schedule is flexible, try to avoid departing on a Monday because tickets tend to average around €816. These prices are subject to change though, so be sure to set up a Price Alert for flights to Dublin.

What is the cheapest time of day to depart on your flight to Dublin?

Our data shows that the cheapest Boston to Dublin flights are usually those with departure times in the evening. Our users have found flights to Dublin in the evening for as low as €591. If you have a flexible travel schedule, then try to avoid flying in the afternoon when prices are €642 on average. Flights to Dublin from Boston in the afternoon are generally more expensive because this time of day is more convenient for travellers’ schedules.

What is the cheapest Boston Logan Intl to Dublin flight route?

Fly from Boston Logan Intl to Dublin for the best Boston Logan Intl - Dublin flight prices

How far in advance should I book a flight to Dublin?

You are more likely to see cheaper flights to Dublin from Boston when booking weeks ahead of your departure date. In general, you can expect to find flights to Dublin for around €486 when searching weeks before you fly. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Dublin from Boston for as low as €439 on momondo.

What cabin class options are available on Boston Logan Intl to Dublin flights?

There are 3 cabin classes available to choose from on Boston Logan Intl to Dublin flights. Cabin price and availability will vary by airline so perform a search above to find the right deals for you.

Can stopping save me money on Boston to Dublin flights?

No. A direct flight is the cheapest option for a flight between Boston to Dublin.

How have Boston to Dublin flight prices changed over time?

As of October 2025, prices for Boston to Dublin flights are approximately 32% cheaper when compared to flights at the same time last year.

When to book flights from Boston to Dublin

Are you open to changing your travel dates? Check out the ideal times to fly from Boston to Dublin according to our flight data. Find out which month and days have the cheapest flights.
Estimated return price

Cheap Boston to Dublin (BOS to DUB) flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Boston to Dublin

Best price found

€316

Fastest flight time

5h 55m

Direct flights

Every day

Airports in Dublin

1 airport
The best flight deal from Boston to Dublin found on momondo in the last 72 hours is €316
The fastest flight from Boston to Dublin takes 5h 55m
Direct flights go from Boston to Dublin every day.
There is 1 airport near Dublin: Dublin (DUB)
  • How far is Boston Logan Intl to Dublin by plane?

    The straight-line distance from Boston Logan Intl to Dublin is 4805.6 km. Flights usually cover this in 6h 00m, depending on flying conditions and air traffic around both airports.

  • When did momondo last update prices for flights from Boston Logan Intl Airport to Dublin Airport?

    Prices for flights from Boston Logan Intl Airport to Dublin Airport are updated daily.

  • How many operators does momondo search for flights from Boston Logan Intl Airport to Dublin Airport?

  • How old do you have to be to fly from Boston Logan Intl Airport to Dublin Airport?

    The minimum age a child must be to fly alone is five but airlines that offer an unaccompanied minor (UNMR) service will have their own age restrictions, including rules around flight length, timings, and stopovers. We always recommend checking with the individual airline you are booking with to travel from Boston Logan Intl Airport to Dublin Airport.

  • What documentation or ID do you need to fly to Dublin Airport?

    The required travel and health documents for your Dublin Airport trip may vary depending on your itinerary and personal circumstances. As a general rule, you should carry multiple documents, including a national ID card or driver's licence and a passport valid for six months after your intended arrival at Dublin Airport. We recommend that you seek guidance from your airline or a reliable third party such as IATA.

  • What is the most popular plane model from Boston to Dublin?

  • What is the most popular airline from Boston to Dublin?

Best airlines flying from Boston to Dublin

Compare and see reviews for airlines that fly from Boston to Dublin with momondo
Airline
Rating
Free Cancellation
Price
Aer LingusPriceFrom €308Free CancellationRating
7.2
1,341 reviews
Search Aer Lingus flights
  • Aer Lingus Flights From Boston to Dublin

    Across 14 Aer Lingus flights from Boston to Dublin this week, the average price was €507, with the best Aer Lingus deals starting from €358 round-trip. 1,341 users have rated Aer Lingus on momondo, with an average score of 7.2/10.

Travelling to a place near Dublin?

Book flights to Dublin if you plan to visit one of these locations
Kilkenny
Athlone
Wicklow
Cavan
Swords
Dundalk
Tullamore
Enniscorthy
Kildare
Bray
Naas
Mullingar
Maynooth
Arklow
Leixlip
Carlingford
Drogheda
Malahide
Portmarnock
Castleknock

Why use momondo?

Why should I use momondo to find a flight deal from Boston to Dublin?

momondo compares prices from hundreds of airlines and agents so you can find and book the best deal on flights from Boston to Dublin . Millions of users trust and use momondo every year so you are in good hands.

Can I find flights from Boston to Dublin with flexible booking policies on momondo?

Flights from Boston to Dublin with flexible booking policies can be found by using the search form above and then selecting our dedicated flexible booking filter, which will highlight only the flights where this policy is applied.

How can momondo help me find flights from Boston to Dublin?

momondo helps you find the best flight between Boston and Dublin by providing filters to narrow your choice of flights to those matching your criteria. You can select flights based on numerous factors such as price, departure and landing times, airport and airline.

I’m not ready to book a flight from Boston to Dublin right now. Can momondo alert me if prices change?

If you are not ready to book a flight from Boston to Dublin now, use our insights above to find helpful tips or alternatively set up a price alert, where momondo will track prices on flights to Dublin and let you know when they change.

An easier way to manage your Dublin trip

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1 adult
Sat 15/11
Sat 22/11