Cheap flights from Boston to Dublin from $221

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 2/7. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
1 adult
0 bags

Discover deals from 900+ travel sites with momondo.

Save money when you book flights with momondo

Big names and deals

Big names and deals

Search 100s of travel sites to compare prices.

Filter for what you want

Filter for what you want

Free Wi-Fi? Stopover? Instantly customize your results.

Trusted and free

Trusted and free

We’re completely free to use - no hidden charges or fees.

Price Alerts

Price Alerts

Not ready to book? to track prices.

Find the cheapest flights from Boston to Dublin

Cheap round-trip flights

Enter your travel dates to find the best prices.
Delta Logo
11:50 am - 7:45 am
BOS
-
DUB
14h 55m
1 stop
Delta Logo
11:30 am - 1:55 pm
DUB
-
BOS
7h 25mnonstop
$349Delta
Sat, Feb 21 - Sat, Feb 28
Delta Logo
10:15 pm - 9:20 am
BOS
-
DUB
6h 05mnonstop
Delta Logo
11:30 am - 2:40 pm
DUB
-
BOS
7h 10mnonstop
$350Delta
Mon, Mar 2 - Wed, Mar 11
United Airlines Logo
12:45 pm - 8:10 am
BOS
-
DUB
14h 25m
1 stop
United Airlines Logo
8:00 am - 10:37 pm
DUB
-
BOS
18h 37m
1 stop
$351United Airlines
Tue, Feb 10 - Fri, Mar 13
United Airlines Logo
4:15 pm - 7:30 am
BOS
-
DUB
10h 15m
1 stop
United Airlines Logo
9:00 am - 7:15 am
DUB
-
BOS
27h 15m
2 stops
$352United Airlines
Sat, Feb 21 - Sat, Feb 28
Multiple Airlines Logo
6:55 pm - 7:10 am
BOS
-
DUB
31h 15m
1 stop
Multiple Airlines Logo
10:50 am - 6:35 pm
DUB
-
BOS
12h 45m
1 stop
$353Multiple Airlines
Wed, Feb 4 - Thu, Feb 26
Delta Logo
11:30 pm - 10:45 am
BOS
-
DUB
6h 15mnonstop
Delta Logo
3:00 pm - 5:04 pm
DUB
-
BOS
7h 04mnonstop
$354Delta
Tue, Apr 21 - Thu, May 7
Delta Logo
1:00 pm - 8:45 am
BOS
-
DUB
14h 45m
1 stop
Delta Logo
11:30 am - 2:40 pm
DUB
-
BOS
7h 10mnonstop
$355Delta
Mon, Feb 9 - Mon, Mar 9
Air Canada Logo
7:55 pm - 6:10 am
BOS
-
DUB
29h 15m
1 stop
Air Canada Logo
8:00 am - 3:57 pm
DUB
-
BOS
11h 57m
1 stop
$356Air Canada
Fri, Mar 6 - Mon, Mar 16
Multiple Airlines Logo
10:15 am - 7:10 am
BOS
-
DUB
15h 55m
2 stops
Multiple Airlines Logo
5:10 am - 1:10 pm
DUB
-
BOS
13h 00m
1 stop
$357Multiple Airlines
Thu, Feb 26 - Sat, Mar 7
Air Canada Logo
1:00 pm - 7:10 am
BOS
-
DUB
13h 10m
1 stop
Air Canada Logo
9:00 am - 7:42 pm
DUB
-
BOS
15h 42m
2 stops
$358Air Canada
Fri, Feb 20 - Fri, Feb 27

Delta flights from Boston to Dublin

Our best Delta deals on Boston to Dublin flight tickets
Delta
Feb 21
BOS10:15 pmBoston Logan Intl
6h 05m
DUB9:20 amDublin
Feb 28
DUB11:30 amDublin
7h 25m
BOS1:55 pmBoston Logan Intl
$349
Delta
Apr 20
BOS11:30 pmBoston Logan Intl
6h 15m
DUB10:45 amDublin
Apr 28
DUB10:00 amDublin
14h 34m
1 stop
BOS7:34 pmBoston Logan Intl
$364
Delta
Feb 18
BOS6:30 pmBoston Logan Intl
32h 20m
1 stop
DUB7:50 amDublin
Feb 22
DUB11:30 amDublin
7h 25m
BOS1:55 pmBoston Logan Intl
$372

Iberia flights from Boston to Dublin

Our best Iberia deals on Boston to Dublin flight tickets
Iberia
Feb 10
BOS5:10 pmBoston Logan Intl
6h 05m
DUB4:15 amDublin
Feb 17
DUB4:45 pmDublin
7h 14m
BOS6:59 pmBoston Logan Intl
$391
Iberia
Jan 18
BOS9:15 pmBoston Logan Intl
6h 05m
DUB8:20 amDublin
Jan 27
DUB11:40 amDublin
7h 15m
BOS1:55 pmBoston Logan Intl
$429
Iberia
Jan 18
BOS5:10 pmBoston Logan Intl
6h 05m
DUB4:15 amDublin
Jan 27
DUB6:15 amDublin
14h 00m
1 stop
BOS3:15 pmBoston Logan Intl
$434

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 January 12, 2026.
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

Sat 2/21

11:50 am-7:45 am

1 stop14h 55m

Dublin

Sat 2/28

11:30 am-1:55 pm

Nonstop7h 25m

$349

BostonDublin

BOS - DUB

BOSDUB

Boston Logan Intl

Mon 3/2

10:15 pm-9:20 am

Nonstop6h 05m

Dublin

Wed 3/11

11:30 am-2:40 pm

Nonstop7h 10m

$350

BostonDublin

BOS - DUB

BOSDUB

Boston Logan Intl

Tue 2/10

12:45 pm-8:10 am

1 stop14h 25m

Dublin

Fri 3/13

8:00 am-10:37 pm

1 stop18h 37m

$351

BostonDublin

BOS - DUB

BOSDUB

Boston Logan Intl

Sat 2/21

4:15 pm-7:30 am

1 stop10h 15m

Dublin

Sat 2/28

9:00 am-7:15 am

2 stops27h 15m

$352

BostonDublin

BOS - DUB

BOSDUB

Boston Logan Intl

Wed 2/4

6:55 pm-7:10 am

1 stop31h 15m

Dublin

Thu 2/26

10:50 am-6:35 pm

1 stop12h 45m

$353

BostonDublin

BOS - DUB

BOSDUB

Boston Logan Intl

Tue 4/21

11:30 pm-10:45 am

Nonstop6h 15m

Dublin

Thu 5/7

3:00 pm-5:04 pm

Nonstop7h 04m

$354

BostonDublin

BOS - DUB

BOSDUB

Boston Logan Intl

Mon 2/9

1:00 pm-8:45 am

1 stop14h 45m

Dublin

Mon 3/9

11:30 am-2:40 pm

Nonstop7h 10m

$355

BostonDublin

BOS - DUB

BOSDUB

Boston Logan Intl

Fri 3/6

7:55 pm-6:10 am

1 stop29h 15m

Dublin

Mon 3/16

8:00 am-3:57 pm

1 stop11h 57m

$356

BostonDublin

BOS - DUB

BOSDUB

Boston Logan Intl

Thu 2/26

10:15 am-7:10 am

2 stops15h 55m

Dublin

Sat 3/7

5:10 am-1:10 pm

1 stop13h 00m

$357

BostonDublin

BOS - DUB

BOSDUB

Boston Logan Intl

Fri 2/20

1:00 pm-7:10 am

1 stop13h 10m

Dublin

Fri 2/27

9:00 am-7:42 pm

2 stops15h 42m

$358

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
1
2

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 $447. 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 $452.

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

The cheapest day to depart from Boston to Dublin is on a Tuesday. Travelers who choose to depart for Dublin on a Tuesday will often find tickets for as low as $595. Flights from Boston to Dublin 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 Dublin?

In the evening is the cheapest time of day to fly from Boston to Dublin when you can find flight prices for as low as $602. Flying to Dublin in the evening 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 $683.

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 $541 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 $517 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 1% 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 January 2026, prices for Boston to Dublin flights are approximately 2% 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

$327

Fastest flight time

6h 00m

Direct flights

Every day

Airports in Dublin

1 airport
The best one-way flight to Dublin from Boston in the past 72 hours is $327. The best round-trip flight deal from Boston to Dublin found on momondo in the last 72 hours is $436.
The fastest flight from Boston to Dublin takes 6h 00m
Direct flights go from Boston to Dublin every day.
There is 1 airport in Dublin. From Boston there are direct flights to 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 6h 00m 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
LufthansaPriceFrom $246Free CancellationRating
6.8
7,709 reviews
Search Lufthansa flights
PLAYPriceFrom $295Free CancellationRating
7.0
103 reviews
Search PLAY flights
United AirlinesPriceFrom $345Free CancellationRating
7.4
9,149 reviews
Search United Airlines flights
Air CanadaPriceFrom $347Free CancellationRating
7.1
10,618 reviews
Search Air Canada flights
Aer LingusPriceFrom $347Free CancellationRating
7.2
1,435 reviews
Search Aer Lingus flights
Air FrancePriceFrom $351Free CancellationRating
7.4
1,520 reviews
Search Air France flights
JetBluePriceFrom $354Free CancellationRating
7.2
2,884 reviews
Search JetBlue flights
IcelandairPriceFrom $355Free CancellationRating
7.1
595 reviews
Search Icelandair flights
DeltaPriceFrom $360Free CancellationRating
7.9
8,039 reviews
Search Delta flights
SWISSPriceFrom $376Free CancellationRating
7.5
1,846 reviews
Search SWISS flights
  • Aer Lingus Flights From Boston to Dublin

    Aer Lingus flight deals from Boston to Dublin start from $347 round-trip. Over the 14 Aer Lingus flights for this route in a normal week, average airfare is usually $568 round-trip - but some users have found much cheaper deals with momondo.

  • JetBlue Flights From Boston to Dublin

    The best JetBlue deal for Boston to Dublin flight tickets found on momondo in the last 72 hours was $354, round-trip. It should be noted that an average JetBlue flight deal for this route in this time was higher, at $601 round-trip. JetBlue operates 14 flights out of Boston into Dublin in an average week, so prices vary by time and availability. 2,886 JetBlue reviews by users on momondo have scored the airline at 7.2/10.

Traveling to a place near Dublin?

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

An easier way to manage your Dublin trip

We make it super easy to schedule, organize and travel with friends or family. Trips is free — and available to use no matter where you book.

Get notified when prices go down

Daily price changes in your inbox - only with Price Alerts.
1 adult
Wed 2/11
Wed 2/18

Find better results for your trip to Ireland