Cheap flights from Boston to Ireland from $218

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 Ireland departing on 3/23. 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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Multiple Airlines Logo
8:40 pm - 5:10 pm
BOS
-
DUB
15h 30m
1 stop
Multiple Airlines Logo
9:00 am - 3:57 pm
DUB
-
BOS
11h 57m
1 stop
$349Multiple Airlines
Tue, Feb 17 - Mon, Feb 23
KLM Logo
10:15 pm - 9:20 am
BOS
-
DUB
6h 05mnonstop
KLM Logo
11:30 am - 1:40 pm
DUB
-
BOS
7h 10mnonstop
$350KLM
Thu, Feb 26 - Tue, Mar 3
United Airlines Logo
6:27 pm - 9:55 am
BOS
-
DUB
10h 28m
1 stop
United Airlines Logo
8:00 am - 5:50 pm
DUB
-
BOS
37h 50m
2 stops
$351United Airlines
Fri, Feb 27 - Sun, Mar 8
Multiple Airlines Logo
10:40 am - 7:45 am
BOS
-
DUB
16h 05m
1 stop
Multiple Airlines Logo
11:30 am - 1:40 pm
DUB
-
BOS
7h 10mnonstop
$352Multiple Airlines
Thu, Feb 26 - Thu, Mar 5
United Airlines Logo
6:15 am - 7:10 am
BOS
-
DUB
19h 55m
1 stop
United Airlines Logo
8:00 am - 5:50 pm
DUB
-
BOS
37h 50m
2 stops
$355United Airlines
Thu, Mar 5 - Fri, Mar 13
Aer Lingus Logo
6:30 pm - 5:25 am
BOS
-
SNN
5h 55mnonstop
Aer Lingus Logo
1:45 pm - 3:40 pm
SNN
-
BOS
6h 55mnonstop
$391Aer Lingus
Sun, Apr 19 - Tue, Apr 28
Aer Lingus Logo
6:30 pm - 5:25 am
BOS
-
SNN
5h 55mnonstop
Aer Lingus Logo
1:45 pm - 3:40 pm
SNN
-
BOS
6h 55mnonstop
$392Aer Lingus
Wed, Apr 29 - Tue, May 5
American Airlines Logo
7:25 pm - 6:20 am
BOS
-
SNN
5h 55mnonstop
American Airlines Logo
2:45 pm - 4:50 pm
SNN
-
BOS
7h 05mnonstop
$397American Airlines
Sun, Feb 1 - Tue, Feb 10
Delta Logo
5:15 pm - 3:00 pm
BOS
-
ORK
17h 45m
2 stops
Delta Logo
3:40 pm - 7:15 am
ORK
-
BOS
19h 35m
2 stops
$407Delta
Mon, Mar 9 - Thu, Mar 19
Delta Logo
12:35 pm - 10:20 am
BOS
-
ORK
16h 45m
2 stops
Delta Logo
6:00 am - 1:13 pm
ORK
-
BOS
12h 13m
1 stop
$408Delta
Tue, Apr 14 - Thu, Apr 30

Air Canada flights from Boston to Ireland

Our best Air Canada deals on Boston to Ireland flight tickets
Air Canada
Jan 29
BOS3:40 pmBoston Logan Intl
34h 30m
2 stops
DUB7:10 amDublin
Feb 4
DUB9:00 amDublin
14h 02m
1 stop
BOS6:02 pmBoston Logan Intl
$358
Air Canada
Feb 21
BOS10:15 amBoston Logan Intl
15h 55m
2 stops
DUB7:10 amDublin
Feb 28
DUB9:00 amDublin
15h 42m
2 stops
BOS7:42 pmBoston Logan Intl
$361
Air Canada
Apr 11
BOS6:40 pmBoston Logan Intl
32h 35m
2 stops
DUB8:15 amDublin
Apr 21
DUB9:50 amDublin
11h 05m
1 stop
BOS3:55 pmBoston Logan Intl
$362

Icelandair flights from Boston to Ireland

Our best Icelandair deals on Boston to Ireland flight tickets
Icelandair
Mar 25
BOS8:50 pmBoston Logan Intl
9h 25m
1 stop
DUB10:15 amDublin
Apr 7
DUB2:15 pmDublin
9h 35m
1 stop
BOS6:50 pmBoston Logan Intl
$366
Icelandair
May 1
BOS8:50 pmBoston Logan Intl
11h 25m
1 stop
DUB1:15 pmDublin
May 10
DUB12:15 pmDublin
14h 55m
1 stop
BOS10:10 pmBoston Logan Intl
$374
Icelandair
May 10
BOS8:50 pmBoston Logan Intl
11h 25m
1 stop
DUB1:15 pmDublin
May 18
DUB2:15 pmDublin
12h 55m
1 stop
BOS10:10 pmBoston Logan Intl
$376

momondo Fare Finder

 
Customize your flight search to find flights from Boston to Ireland 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 832,500 searches. Data last updated January 15, 2026.
Use the filters below to find and compare flights from Boston to Ireland that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

BostonDublin

BOS - DUB

BOSDUB

Boston Logan Intl

Tue 2/17

8:40 pm-5:10 pm

1 stop15h 30m

Dublin

Mon 2/23

9:00 am-3:57 pm

1 stop11h 57m

$349

BostonDublin

BOS - DUB

BOSDUB

Boston Logan Intl

Thu 2/26

10:15 pm-9:20 am

Nonstop6h 05m

Dublin

Tue 3/3

11:30 am-1:40 pm

Nonstop7h 10m

$350

BostonDublin

BOS - DUB

BOSDUB

Boston Logan Intl

Fri 2/27

6:27 pm-9:55 am

1 stop10h 28m

Dublin

Sun 3/8

8:00 am-5:50 pm

2 stops37h 50m

$351

BostonDublin

BOS - DUB

BOSDUB

Boston Logan Intl

Thu 2/26

10:40 am-7:45 am

1 stop16h 05m

Dublin

Thu 3/5

11:30 am-1:40 pm

Nonstop7h 10m

$352

BostonDublin

BOS - DUB

BOSDUB

Boston Logan Intl

Thu 3/5

6:15 am-7:10 am

1 stop19h 55m

Dublin

Fri 3/13

8:00 am-5:50 pm

2 stops37h 50m

$355

BostonShannon

BOS - SNN

BOSSNN

Boston Logan Intl

Sun 4/19

6:30 pm-5:25 am

Nonstop5h 55m

Shannon

Tue 4/28

1:45 pm-3:40 pm

Nonstop6h 55m

$391

BostonShannon

BOS - SNN

BOSSNN

Boston Logan Intl

Wed 4/29

6:30 pm-5:25 am

Nonstop5h 55m

Shannon

Tue 5/5

1:45 pm-3:40 pm

Nonstop6h 55m

$392

BostonShannon

BOS - SNN

BOSSNN

Boston Logan Intl

Sun 2/1

7:25 pm-6:20 am

Nonstop5h 55m

Shannon

Tue 2/10

2:45 pm-4:50 pm

Nonstop7h 05m

$397

BostonCork

BOS - ORK

BOSORK

Boston Logan Intl

Mon 3/9

5:15 pm-3:00 pm

2 stops17h 45m

Cork

Thu 3/19

3:40 pm-7:15 am

2 stops19h 35m

$407

BostonCork

BOS - ORK

BOSORK

Boston Logan Intl

Tue 4/14

12:35 pm-10:20 am

2 stops16h 45m

Cork

Thu 4/30

6:00 am-1:13 pm

1 stop12h 13m

$408

Flights are sorted by cheapest round-trip flights first.

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

How to get the cheapest flight ticket from Boston to Ireland

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 Ireland?

In general, February is the cheapest month to fly from Boston to Ireland. Due to it being the ‘off-season’ during this time, you can expect flight prices to be around $447. If you aren’t able to travel to Ireland during the month of February, then flying in November is also cheap. Prices for this month can be found on momondo for an average of $452.

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

The cheapest day to depart on your flight to Ireland is on a Tuesday when prices can be found for as low as $595. This is often the case because there is less demand to fly during this day of the week. Flights from Boston to Ireland on a Friday will generally be more expensive and average around $692. Keep in mind that these prices on both days could fluctuate depending on the season and the demand.

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

According to our data, the cheapest time of day to fly to Ireland is in the evening. momondo users have found flights departing from Boston to Ireland in the evening for as low as $602. Keep in mind that these prices may fluctuate based on what airline you choose and the time of year you plan to travel. In contrast, the most expensive time of day to depart to Ireland is in the afternoon when prices are around $683.

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

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

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

You are more likely to see cheaper flights to Ireland from Boston when booking weeks ahead of your departure date. In general, you can expect to find flights to Ireland for around $541 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Ireland from Boston for as low as $517 on momondo.

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

There are 4 cabin classes available to choose from on Boston Logan Intl to Ireland 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 Ireland flights?

You could potentially save up to 1% on your flight if you consider stops on a Boston to Ireland flight.

Cheap Boston to Ireland flight deals and tips

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

Best Price Found

$327

Fastest flight time

5h 55m

Direct flights

Every day

Airports in Ireland

77 airports
The best one-way flight to Ireland from Boston in the past 72 hours is $327. The best round-trip flight deal from Boston to Ireland found on momondo in the last 72 hours is $433.
The fastest flight from Boston to Ireland takes 5h 55m
Direct flights go from Boston to Ireland every day.
There are 77 airports in Ireland. From Boston there are direct flights to Dublin (DUB), Shannon (SNN).
  • When did momondo last update prices for flights from Boston Logan Intl Airport to Ireland?

    Prices for flights from Boston Logan Intl Airport to Ireland are refreshed on a daily basis.

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

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

    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 Ireland.

  • What documentation or ID do you need to fly to Ireland?

    The travel and health documents you'll need for your trip to Ireland may differ based on your itinerary and personal situation. Typically, you should have several documents on hand, such as a national ID card or driver's license and a passport that is valid for six months after your intended arrival at Ireland. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.

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

Best airlines flying from Boston to Ireland

Compare and see reviews for airlines that fly from Boston to Ireland with momondo
Airline
Rating
Free Cancellation
Price
DeltaPriceFrom $244Free CancellationRating
7.9
8,049 reviews
Search Delta flights
LufthansaPriceFrom $246Free CancellationRating
6.8
7,715 reviews
Search Lufthansa flights
PLAYPriceFrom $293Free CancellationRating
7.0
103 reviews
Search PLAY flights
JetBluePriceFrom $347Free CancellationRating
7.2
2,887 reviews
Search JetBlue flights
United AirlinesPriceFrom $347Free CancellationRating
7.4
9,163 reviews
Search United Airlines flights
Air CanadaPriceFrom $347Free CancellationRating
7.1
10,622 reviews
Search Air Canada flights
Aer LingusPriceFrom $348Free CancellationRating
7.2
1,435 reviews
Search Aer Lingus flights
Air FrancePriceFrom $351Free CancellationRating
7.4
1,522 reviews
Search Air France flights
IcelandairPriceFrom $355Free CancellationRating
7.1
596 reviews
Search Icelandair flights
SWISSPriceFrom $376Free CancellationRating
7.5
1,847 reviews
Search SWISS flights

Why use momondo?

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

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

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

All flight searches from Boston to Ireland on momondo can be filtered to show those which offer flexible booking policies.

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

Once all potential Boston to Ireland flight options are in front of you, momondo lets you sort and filter flights based on preferences such as airline, price and flight times amongst many other options.

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

Of course. momondo tracks the price of Boston to Ireland flights. All you need is a valid email address and we will do the rest; it is that quick and easy.

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1 adult
Sat 2/14
Sat 2/21

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Popular cities in Ireland

Popular flights according to clicks in the last 7 days on momondo