Cheap flights from Boston to Ireland from $222

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 1/19. 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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Enter your travel dates to find the best prices.
United Airlines Logo
4:15 pm - 7:30 am
BOS
-
DUB
10h 15m1 stop
United Airlines Logo
9:00 am - 3:57 pm
DUB
-
BOS
11h 57m1 stop
$349United Airlines
Sat, Feb 21 - Mon, Mar 2
Delta Logo
6:53 pm - 8:45 am
BOS
-
DUB
8h 52m1 stop
Delta Logo
11:30 am - 1:55 pm
DUB
-
BOS
7h 25mnonstop
$350Delta
Sat, Feb 21 - Sat, Feb 28
United Airlines Logo
10:45 am - 6:10 am
BOS
-
DUB
14h 25m1 stop
United Airlines Logo
8:00 am - 5:50 pm
DUB
-
BOS
37h 50m2 stops
$351United Airlines
Sat, Mar 7 - Sun, Mar 15
KLM Logo
11:30 pm - 10:45 am
BOS
-
DUB
6h 15mnonstop
KLM Logo
3:00 pm - 5:04 pm
DUB
-
BOS
7h 04mnonstop
$353KLM
Mon, May 4 - Tue, May 12
Air Canada Logo
3:35 pm - 7:10 am
BOS
-
DUB
34h 35m2 stops
Air Canada Logo
9:00 am - 9:27 pm
DUB
-
BOS
17h 27m2 stops
$357Air Canada
Wed, Feb 25 - Sun, Mar 1
Aer Lingus Logo
6:35 pm - 5:25 am
BOS
-
SNN
5h 50mnonstop
Aer Lingus Logo
1:45 pm - 3:30 pm
SNN
-
BOS
6h 45mnonstop
$406Aer Lingus
Tue, Apr 14 - Tue, Apr 28
Aer Lingus Logo
8:25 pm - 6:20 am
BOS
-
SNN
5h 55mnonstop
Aer Lingus Logo
2:45 pm - 5:50 pm
SNN
-
BOS
7h 05mnonstop
$407Aer Lingus
Tue, Mar 17 - Sat, Mar 28
KLM Logo
4:35 pm - 4:35 pm
BOS
-
ORK
19h 00m1 stop
KLM Logo
5:10 pm - 4:25 pm
ORK
-
BOS
28h 15m1 stop
$434KLM
Fri, Apr 3 - Mon, Apr 6
American Airlines Logo
7:15 pm - 11:10 am
BOS
-
ORK
10h 55m1 stop
American Airlines Logo
7:40 am - 7:50 pm
ORK
-
BOS
17h 10m2 stops
$451American Airlines
Mon, Jan 12 - Wed, Jan 21
American Airlines Logo
8:20 pm - 3:10 pm
BOS
-
ORK
13h 50m1 stop
American Airlines Logo
7:20 am - 1:35 pm
ORK
-
BOS
11h 15m1 stop
$456American Airlines
Tue, Apr 14 - Thu, Apr 30

KLM flights from Boston to Ireland

Our best KLM deals on Boston to Ireland flight tickets
KLM
May 6
BOS11:30 pmBoston Logan Intl
6h 15m
DUB10:45 amDublin
May 10
DUB3:00 pmDublin
7h 04m
BOS5:04 pmBoston Logan Intl
KLM
Apr 23
BOS3:10 pmBoston Logan Intl
12h 35m
1 stop
DUB8:45 amDublin
Apr 28
DUB3:00 pmDublin
7h 04m
BOS5:04 pmBoston Logan Intl
KLM
Dec 31
BOS8:50 pmBoston Logan Intl
21h 35m
1 stop
ORK11:25 pmCork
Jan 14
ORK1:25 pmCork
10h 30m
1 stop
BOS6:55 pmBoston Logan Intl

United Airlines flights from Boston to Ireland

Our best United Airlines deals on Boston to Ireland flight tickets
United Airlines
Feb 21
BOS9:30 amBoston Logan Intl
19h 50m
1 stop
DUB10:20 amDublin
Mar 4
DUB9:00 amDublin
11h 57m
1 stop
BOS3:57 pmBoston Logan Intl
United Airlines
Jan 7
BOS6:55 pmBoston Logan Intl
31h 15m
1 stop
DUB7:10 amDublin
Jan 14
DUB9:00 amDublin
37h 50m
2 stops
BOS5:50 pmBoston Logan Intl
United Airlines
May 4
BOS9:50 amBoston Logan Intl
16h 30m
1 stop
DUB7:20 amDublin
May 12
DUB9:50 amDublin
36h 55m
2 stops
BOS5:45 pmBoston Logan Intl

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 December 28, 2025.
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

Sat 2/21

4:15 pm-7:30 am

1 stop10h 15m

Dublin

Mon 3/2

9:00 am-3:57 pm

1 stop11h 57m

$349

BostonDublin

BOS - DUB

BOSDUB

Boston Logan Intl

Sat 2/21

6:53 pm-8:45 am

1 stop8h 52m

Dublin

Sat 2/28

11:30 am-1:55 pm

Nonstop7h 25m

$350

BostonDublin

BOS - DUB

BOSDUB

Boston Logan Intl

Sat 3/7

10:45 am-6:10 am

1 stop14h 25m

Dublin

Sun 3/15

8:00 am-5:50 pm

2 stops37h 50m

$351

BostonDublin

BOS - DUB

BOSDUB

Boston Logan Intl

Mon 5/4

11:30 pm-10:45 am

Nonstop6h 15m

Dublin

Tue 5/12

3:00 pm-5:04 pm

Nonstop7h 04m

$353

BostonDublin

BOS - DUB

BOSDUB

Boston Logan Intl

Wed 2/25

3:35 pm-7:10 am

2 stops34h 35m

Dublin

Sun 3/1

9:00 am-9:27 pm

2 stops17h 27m

$357

BostonShannon

BOS - SNN

BOSSNN

Boston Logan Intl

Tue 4/14

6:35 pm-5:25 am

Nonstop5h 50m

Shannon

Tue 4/28

1:45 pm-3:30 pm

Nonstop6h 45m

$406

BostonShannon

BOS - SNN

BOSSNN

Boston Logan Intl

Tue 3/17

8:25 pm-6:20 am

Nonstop5h 55m

Shannon

Sat 3/28

2:45 pm-5:50 pm

Nonstop7h 05m

$407

BostonCork

BOS - ORK

BOSORK

Boston Logan Intl

Fri 4/3

4:35 pm-4:35 pm

1 stop19h 00m

Cork

Mon 4/6

5:10 pm-4:25 pm

1 stop28h 15m

$434

BostonCork

BOS - ORK

BOSORK

Boston Logan Intl

Mon 1/12

7:15 pm-11:10 am

1 stop10h 55m

Cork

Wed 1/21

7:40 am-7:50 pm

2 stops17h 10m

$451

BostonCork

BOS - ORK

BOSORK

Boston Logan Intl

Tue 4/14

8:20 pm-3:10 pm

1 stop13h 50m

Cork

Thu 4/30

7:20 am-1:35 pm

1 stop11h 15m

$456

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, November 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 $449. If you aren’t able to travel to Ireland during the month of November, then flying in February is also cheap. Prices for this month can be found on momondo for an average of $465.

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 $603. 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 $701. 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 $609. 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 $688.

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

Fly from Boston Logan Intl to Shannon 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 $554 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 $523 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

$315

Fastest flight time

5h 50m

Direct flights

Every day

Airports in Ireland

77 airports
The best one-way flight to Ireland from Boston in the past 72 hours is $315. The best round-trip flight deal from Boston to Ireland found on momondo in the last 72 hours is $426.
The fastest flight from Boston to Ireland takes 5h 50m
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
8,022 reviews
Search Delta flights
LufthansaPriceFrom $246Free CancellationRating
6.8
7,657 reviews
Search Lufthansa flights
PLAYPriceFrom $292Free CancellationRating
7.0
103 reviews
Search PLAY flights
Air CanadaPriceFrom $347Free CancellationRating
7.1
10,562 reviews
Search Air Canada flights
Aer LingusPriceFrom $348Free CancellationRating
7.2
1,412 reviews
Search Aer Lingus flights
United AirlinesPriceFrom $349Free CancellationRating
7.4
9,116 reviews
Search United Airlines flights
Air FrancePriceFrom $351Free CancellationRating
7.4
1,515 reviews
Search Air France flights
IcelandairPriceFrom $356Free CancellationRating
7.0
592 reviews
Search Icelandair flights
JetBluePriceFrom $356Free CancellationRating
7.2
2,902 reviews
Search JetBlue flights
SWISSPriceFrom $376Free CancellationRating
7.5
1,828 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
Tue 1/27
Tue 2/3

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