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Cheap flights from Boston to Ireland from $139

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 10/12. 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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Find the cheapest flights from Boston to Ireland

Cheap round-trip flights

Aer Lingus Logo
7:25 pm - 6:20 amBOS-SNN
5h 55mnonstop
Aer Lingus Logo
2:45 pm - 4:50 pmSNN-BOS
7h 05mnonstop
$312Aer Lingus
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Tue, Nov 18 - Wed, Nov 19
Delta Logo
11:15 pm - 9:20 amBOS-DUB
6h 05mnonstop
Delta Logo
11:30 am - 1:40 pmDUB-BOS
7h 10mnonstop
$319Delta
Find Deal
Tue, Oct 28 - Wed, Nov 5
Delta Logo
3:20 pm - 8:45 amBOS-DUB
12h 25m1 stop
Delta Logo
11:30 am - 1:40 pmDUB-BOS
7h 10mnonstop
$323Delta
Find Deal
Tue, Oct 21 - Fri, Nov 7
Aer Lingus Logo
5:50 pm - 4:45 amBOS-DUB
5h 55mnonstop
Aer Lingus Logo
11:40 am - 1:50 pmDUB-BOS
7h 10mnonstop
$327Aer Lingus
Find Deal
Wed, Dec 10 - Tue, Dec 16
Air Canada Logo
10:20 am - 8:15 amBOS-DUB
16h 55m2 stops
Air Canada Logo
9:00 am - 10:37 pmDUB-BOS
18h 37m1 stop
$328Air Canada
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Thu, Oct 23 - Wed, Nov 5
Delta Logo
11:15 pm - 9:20 amBOS-DUB
6h 05mnonstop
Delta Logo
10:45 am - 7:20 amDUB-BOS
25h 35m1 stop
$329Delta
Find Deal
Tue, Oct 28 - Thu, Nov 6
Air France Logo
11:40 pm - 10:45 amBOS-DUB
6h 05mnonstop
Air France Logo
11:30 am - 1:40 pmDUB-BOS
7h 10mnonstop
$334Air France
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Sun, Oct 19 - Mon, Nov 24
KLM Logo
10:30 pm - 2:40 pmBOS-ORK
11h 10m1 stop
KLM Logo
6:00 am - 6:55 pmORK-BOS
17h 55m1 stop
$362KLM
Find Deal
Mon, Oct 20 - Wed, Nov 5
Icelandair Logo
8:00 pm - 10:15 amBOS-DUB
9h 15m1 stop
Icelandair Logo
11:30 am - 5:50 pmDUB-BOS
11h 20m1 stop
$371Icelandair
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Mon, Jan 5 - Thu, Jan 15
KLM Logo
10:30 pm - 2:40 pmBOS-ORK
11h 10m1 stop
KLM Logo
1:25 pm - 10:29 pmORK-BOS
14h 04m2 stops
$372KLM
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Mon, Oct 20 - Wed, Nov 5

Aer Lingus flights from Boston to Ireland

Our best Aer Lingus deals on Boston to Ireland flight tickets
Aer Lingus
Nov 18
BOS7:25 pmBoston Logan Intl
5h 55m
SNN6:20 amShannon
Nov 19
SNN2:45 pmShannon
7h 05m
BOS4:50 pmBoston Logan Intl
$312
Find similar
Aer Lingus
Dec 10
BOS5:50 pmBoston Logan Intl
5h 55m
DUB4:45 amDublin
Dec 16
DUB11:40 amDublin
7h 10m
BOS1:50 pmBoston Logan Intl
$327
Find similar
Aer Lingus
Feb 9
BOS9:15 pmBoston Logan Intl
6h 05m
DUB8:20 amDublin
Feb 22
DUB11:40 amDublin
7h 15m
BOS1:55 pmBoston Logan Intl
$332
Find similar

Air Canada flights from Boston to Ireland

Our best Air Canada deals on Boston to Ireland flight tickets
Air Canada
Oct 23
BOS10:20 amBoston Logan Intl
16h 55m
2 stops
DUB8:15 amDublin
Nov 5
DUB9:00 amDublin
18h 37m
1 stop
BOS10:37 pmBoston Logan Intl
$328
Find similar
Air Canada
Sep 1
BOS10:20 amBoston Logan Intl
16h 25m
1 stop
DUB7:45 amDublin
Sep 7
DUB9:50 amDublin
29h 05m
1 stop
BOS9:55 amBoston Logan Intl
$340
Find similar
Air Canada
Sep 1
BOS10:20 amBoston Logan Intl
16h 25m
1 stop
DUB7:45 amDublin
Sep 7
DUB9:50 amDublin
28h 40m
2 stops
BOS9:30 amBoston Logan Intl
$346
Find similar

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 August 14, 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

BostonShannon

BOS - SNN

BOSSNN

Boston Logan Intl

Tue 11/18

7:25 pm-6:20 am

Nonstop5h 55m

Shannon

Wed 11/19

2:45 pm-4:50 pm

Nonstop7h 05m

$312

BostonDublin

BOS - DUB

BOSDUB

Boston Logan Intl

Tue 10/28

11:15 pm-9:20 am

Nonstop6h 05m

Dublin

Wed 11/5

11:30 am-1:40 pm

Nonstop7h 10m

$319

BostonDublin

BOS - DUB

BOSDUB

Boston Logan Intl

Tue 10/21

3:20 pm-8:45 am

1 stop12h 25m

Dublin

Fri 11/7

11:30 am-1:40 pm

Nonstop7h 10m

$323

BostonDublin

BOS - DUB

BOSDUB

Boston Logan Intl

Wed 12/10

5:50 pm-4:45 am

Nonstop5h 55m

Dublin

Tue 12/16

11:40 am-1:50 pm

Nonstop7h 10m

$327

BostonDublin

BOS - DUB

BOSDUB

Boston Logan Intl

Thu 10/23

10:20 am-8:15 am

2 stops16h 55m

Dublin

Wed 11/5

9:00 am-10:37 pm

1 stop18h 37m

$328

BostonDublin

BOS - DUB

BOSDUB

Boston Logan Intl

Tue 10/28

11:15 pm-9:20 am

Nonstop6h 05m

Dublin

Thu 11/6

10:45 am-7:20 am

1 stop25h 35m

$329

BostonDublin

BOS - DUB

BOSDUB

Boston Logan Intl

Sun 10/19

11:40 pm-10:45 am

Nonstop6h 05m

Dublin

Mon 11/24

11:30 am-1:40 pm

Nonstop7h 10m

$334

BostonCork

BOS - ORK

BOSORK

Boston Logan Intl

Mon 10/20

10:30 pm-2:40 pm

1 stop11h 10m

Cork

Wed 11/5

6:00 am-6:55 pm

1 stop17h 55m

$362

BostonDublin

BOS - DUB

BOSDUB

Boston Logan Intl

Mon 1/5

8:00 pm-10:15 am

1 stop9h 15m

Dublin

Thu 1/15

11:30 am-5:50 pm

1 stop11h 20m

$371

BostonCork

BOS - ORK

BOSORK

Boston Logan Intl

Mon 10/20

10:30 pm-2:40 pm

1 stop11h 10m

Cork

Wed 11/5

1:25 pm-10:29 pm

2 stops14h 04m

$372

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 $479. 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 $488.

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 Wednesday when prices can be found for as low as $642. 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 $732. 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 at noon. momondo users have found flights departing from Boston to Ireland at noon for as low as $476. 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 $725.

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 $572 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 $506 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 7% 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

$139

Fastest flight time

5h 50m

Direct flights

Every day

Airports in Ireland

4 airports
The best one-way flight to Ireland from Boston in the past 72 hours is $139. The best round-trip flight deal from Boston to Ireland found on momondo in the last 72 hours is $312.
The fastest flight from Boston to Ireland takes 5h 50m
Direct flights go from Boston to Ireland every day.
There are 4 airports near Ireland: Dublin (DUB), Shannon (SNN), Milltown (Kerry) Kerry (KIR), Cork (ORK)
Search flight deals

  • 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
8.0
7,980 reviews
Search Delta flights
PLAYPriceFrom $282Free CancellationRating
7.0
103 reviews
Search PLAY flights
TAP AIR PORTUGALPriceFrom $352Free CancellationRating
7.1
1,948 reviews
Search TAP AIR PORTUGAL flights
Air CanadaPriceFrom $353Free CancellationRating
7.1
9,949 reviews
Search Air Canada flights
IcelandairPriceFrom $357Free CancellationRating
7.0
526 reviews
Search Icelandair flights
United AirlinesPriceFrom $363Free CancellationRating
7.4
8,916 reviews
Search United Airlines flights
Air FrancePriceFrom $379Free CancellationRating
7.4
1,467 reviews
Search Air France flights
JetBluePriceFrom $380Free CancellationRating
7.2
2,914 reviews
Search JetBlue flights
Scandinavian AirlinesPriceFrom $405Free CancellationRating
7.4
1,468 reviews
Search Scandinavian Airlines flights
SWISSPriceFrom $407Free CancellationRating
7.5
1,699 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.

An easier way to manage your Ireland trip

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Find better results for your trip to Ireland

Popular cities in Ireland

Popular flights according to clicks in the last 7 days on momondo
Flights to Dublinfrom $304
Flights to Shannon, Clarefrom $339
Flights to Corkfrom $391
Flights to Knockfrom $633
Flights to Milltown (Kerry)from $460
Flights to Donegalfrom $452