Cheap flights from Boston to Dublin 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 Dublin 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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Cheap round-trip flights

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
mar., oct. 28 - mié., 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
mar., oct. 21 - vie., 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
mié., dic. 10 - mar., dic. 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
Find Deal
jue., oct. 23 - mié., 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
mar., oct. 28 - jue., nov. 6
United Airlines Logo
5:30 am - 10:20 amBOS-DUB
23h 50m1 stop
United Airlines Logo
8:00 am - 10:57 amDUB-BOS
30h 57m1 stop
$331United Airlines
Find Deal
dom., oct. 19 - sáb., nov. 1
Aer Lingus Logo
9:15 pm - 8:20 amBOS-DUB
6h 05mnonstop
Aer Lingus Logo
11:40 am - 1:55 pmDUB-BOS
7h 15mnonstop
$332Aer Lingus
Find Deal
lun., feb. 9 - dom., feb. 22
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
Find Deal
dom., oct. 19 - lun., nov. 24
United Airlines Logo
8:47 pm - 9:45 amBOS-DUB
31h 58m1 stop
United Airlines Logo
9:00 am - 5:50 pmDUB-BOS
37h 50m2 stops
$336United Airlines
Find Deal
lun., oct. 20 - dom., nov. 2
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
Find Deal
lun., ene. 5 - jue., ene. 15

Aer Lingus flights from Boston to Dublin

Our best Aer Lingus deals on Boston to Dublin flight tickets
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
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
Aer Lingus
Nov 7
BOS5:50 pmBoston Logan Intl
5h 55m
DUB4:45 amDublin
Nov 9
DUB11:40 amDublin
7h 10m
BOS1:50 pmBoston Logan Intl

Air Canada flights from Boston to Dublin

Our best Air Canada deals on Boston to Dublin 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
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
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

momondo 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, momondo users made 832,500 searches. Data last updated agosto 14, 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

mar. 10/28

11:15 pm-9:20 am

Nonstop6h 05m

Dublin

mié. 11/5

11:30 am-1:40 pm

Nonstop7h 10m

$319

BostonDublin

BOS - DUB

BOSDUB

Boston Logan Intl

mar. 10/21

3:20 pm-8:45 am

1 stop12h 25m

Dublin

vie. 11/7

11:30 am-1:40 pm

Nonstop7h 10m

$323

BostonDublin

BOS - DUB

BOSDUB

Boston Logan Intl

mié. 12/10

5:50 pm-4:45 am

Nonstop5h 55m

Dublin

mar. 12/16

11:40 am-1:50 pm

Nonstop7h 10m

$327

BostonDublin

BOS - DUB

BOSDUB

Boston Logan Intl

jue. 10/23

10:20 am-8:15 am

2 stops16h 55m

Dublin

mié. 11/5

9:00 am-10:37 pm

1 stop18h 37m

$328

BostonDublin

BOS - DUB

BOSDUB

Boston Logan Intl

mar. 10/28

11:15 pm-9:20 am

Nonstop6h 05m

Dublin

jue. 11/6

10:45 am-7:20 am

1 stop25h 35m

$329

BostonDublin

BOS - DUB

BOSDUB

Boston Logan Intl

dom. 10/19

5:30 am-10:20 am

1 stop23h 50m

Dublin

sáb. 11/1

8:00 am-10:57 am

1 stop30h 57m

$331

BostonDublin

BOS - DUB

BOSDUB

Boston Logan Intl

lun. 2/9

9:15 pm-8:20 am

Nonstop6h 05m

Dublin

dom. 2/22

11:40 am-1:55 pm

Nonstop7h 15m

$332

BostonDublin

BOS - DUB

BOSDUB

Boston Logan Intl

dom. 10/19

11:40 pm-10:45 am

Nonstop6h 05m

Dublin

lun. 11/24

11:30 am-1:40 pm

Nonstop7h 10m

$334

BostonDublin

BOS - DUB

BOSDUB

Boston Logan Intl

lun. 10/20

8:47 pm-9:45 am

1 stop31h 58m

Dublin

dom. 11/2

9:00 am-5:50 pm

2 stops37h 50m

$336

BostonDublin

BOS - DUB

BOSDUB

Boston Logan Intl

lun. 1/5

8:00 pm-10:15 am

1 stop9h 15m

Dublin

jue. 1/15

11:30 am-5:50 pm

1 stop11h 20m

$371

Flights are sorted by cheapest round-trip flights 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?

In general, February is the cheapest month to fly from Boston to Dublin. Due to it being the ‘off-season’ during this time, you can expect flight prices to be around $479. If you’re not able to fly to Dublin in February, then November is your next best option. Flight prices from Boston to Dublin during November average around $488.

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

The cheapest day to depart from Boston to Dublin is on a Wednesday. Travelers who choose to depart for Dublin on a Wednesday will often find tickets for as low as $642. Flights from Boston to Dublin 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 Dublin?

At noon is the cheapest time of day to fly from Boston to Dublin when you can find flight prices for as low as $476. Flying to Dublin at noon is an ideal time because this is during off-peak travel hours. Flights in the afternoon are often more expensive with an average ticket price of $725.

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 $572 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Dublin from Boston for as low as $506 on momondo.

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

There are 4 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?

You could potentially save up to 7% on your flight if you consider stops on a Boston to Dublin flight.

How have Boston to Dublin flight prices changed over time?

As of August 2025, prices for Boston to Dublin flights are approximately 30% 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 round-trip 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

$139

Fastest flight time

5h 55m

Direct flights

Every day

Airports in Dublin

1 airport
The best one-way flight to Dublin from Boston in the past 72 hours is $139. The best round-trip flight deal from Boston to Dublin found on momondo in the last 72 hours is $319.
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?

    A flight from Boston Logan Intl to Dublin will travel around 2986.1 mi. Typically, this will take 5h 55m by plane in normal conditions.

  • 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 refreshed on a daily basis.

  • 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 necessary travel and health documents for your Dublin Airport trip may vary depending on your travel plans and individual circumstances. Generally, you should have various documents, such as a national ID card or driver's license and a passport that is valid for six months beyond your scheduled arrival date. We recommend seeking advice from your airline or a trusted 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
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
DeltaPriceFrom $403Free CancellationRating
8.0
7,980 reviews
Search Delta 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
  • Delta Flights From Boston to Dublin

    Delta flight deals from Boston to Dublin start from $403 round-trip. Over the 6 Delta flights for this route in a normal week, average airfare is usually $605 round-trip - but some users have found much cheaper deals with momondo.

  • KLM Flights From Boston to Dublin

    The best KLM deal for Boston to Dublin flight tickets found on momondo in the last 72 hours was $447, round-trip. It should be noted that an average KLM flight deal for this route in this time was higher, at $633 round-trip. KLM operates 7 flights out of Boston into Dublin in an average week, so prices vary by time and availability. 1,381 KLM reviews by users on momondo have scored the airline at 7.8/10.

Traveling to a place near Dublin?

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

Why use momondo?

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

To find the flight that best suits your needs, momondo gathers a range of flights from a large pool of different airlines and agents; you can then use our insights and filters to find and book the right flight to Dublin from Boston.

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

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

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

Once all potential Boston to Dublin 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 Dublin right now. Can momondo alert me if prices change?

Of course. momondo tracks the price of Boston to Dublin 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
mar. 8/19
mar. 8/26

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